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HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFUNDERGROUND CHAT
HFUnderground Chat
HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFUNDERGROUND CHAT
HFUnderground Chat
30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
CIVIL AIR PATROL
Civil Air Patrol CAP VHF Frequencies. The Civil Air Patrol will use VHF airband frequency 123.1 MHz for air-to-air coordination during search and rescue (SAR). Training ELT usage on 121.6 MHz (old frequency) and 121.775 MHz (new frequency). All frequencies listed below are mixed mode analog FM or digital P25 Project 25 digitalvoice, depending
SHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. SHORTWAVE UTILITY STATIONS Shortwave Utility Stations. Utility stations presumably serve a useful purpose, for example communication between ship and shore. Many of them only have scheduled broadcasts for a few minutes a day, making them interesting DX targets.TRANSMITTERS
1) Square the input voltage (12 * 12 = 144) and then divide the result by TWICE your measured power. For example, if you measured your unfiltered output at 16 watts, your drain impedance would be approximately 144 / 32 = 4.5 ohms. 2) The output impedance of the bridged audio amplifier is 8 ohms.FEARLESS FRED
Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so.PIRATE STATIONS
A new pirate station, BOC HF RADIO was heard yesterday, August 30, 2013 on 6925 USB starting at 2310 UTC. The station featured music from the electronic music band Boards of Canada.. The station was logged by quite a few listeners on the HF Underground Pirate Radio Message Board The station opened with a PSK125 transmission: A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
HFUNDERGROUND CHAT
HFUnderground Chat
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
SHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
HFUNDERGROUND CHAT
HFUnderground Chat
HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
SHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
HFUNDERGROUND CHAT
HFUnderground Chat
SHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby.TRANSMITTERS
1) Square the input voltage (12 * 12 = 144) and then divide the result by TWICE your measured power. For example, if you measured your unfiltered output at 16 watts, your drain impedance would be approximately 144 / 32 = 4.5 ohms. 2) The output impedance of the bridged audio amplifier is 8 ohms. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFUNDERGROUND CHAT
HFUnderground Chat
SHORTWAVE PIRATE RADIO 2014 In the world of shortwave pirate radio, there’s a number of transmissions where no ID is given. There’s also many cases where no ID could be heard, due to poor conditions. For 2014, there were 651 threads with 2,788 loggings where no station ID was given – that’s almost 33% of the threads. Here’s the complete list of all stationswith
GRAPHS OF KHZ SIGNAL LEVELS '; } DoMyAd(); ?> Go back to the Graphs of HF Signal Levels page.Graphs of HF Signal Levels page.ADMIN | 30 BELOW
Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
FPECONSULTANT
Caught this 3/8/14 While waiting for ANTI Milano to sign on at 1457z 15515kHz, this popped up out of nowhere – NOT caught in progress: African american male “Morning”?HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mwSHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
HFUNDERGROUND CHAT
HFUnderground Chat
HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mwSHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
HFUNDERGROUND CHAT
HFUnderground Chat
SHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby.TRANSMITTERS
1) Square the input voltage (12 * 12 = 144) and then divide the result by TWICE your measured power. For example, if you measured your unfiltered output at 16 watts, your drain impedance would be approximately 144 / 32 = 4.5 ohms. 2) The output impedance of the bridged audio amplifier is 8 ohms. A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful! SHORTWAVE PIRATE RADIO 2014 In the world of shortwave pirate radio, there’s a number of transmissions where no ID is given. There’s also many cases where no ID could be heard, due to poor conditions. For 2014, there were 651 threads with 2,788 loggings where no station ID was given – that’s almost 33% of the threads. Here’s the complete list of all stationswith
HFUNDERGROUND CHAT
HFUnderground Chat
ADMIN | 30 BELOW
Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
SHORTWAVE PIRATE RADIO 2015 In the world of shortwave pirate radio, there’s a number of transmissions where no ID is given. There’s also cases where no ID could be heard, due to poor conditions. This year, 801 out of 2,183 threads were UNID, or about 37 percent. For 2014, there were 651 threads with 2,788 loggings where no station ID was given – that’salmost 33
FPECONSULTANT
Caught this 3/8/14 While waiting for ANTI Milano to sign on at 1457z 15515kHz, this popped up out of nowhere – NOT caught in progress: African american male “Morning”?HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mwSHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
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HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COM HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mwSHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
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SHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby.TRANSMITTERS
1) Square the input voltage (12 * 12 = 144) and then divide the result by TWICE your measured power. For example, if you measured your unfiltered output at 16 watts, your drain impedance would be approximately 144 / 32 = 4.5 ohms. 2) The output impedance of the bridged audio amplifier is 8 ohms. A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful! SHORTWAVE PIRATE RADIO 2014 In the world of shortwave pirate radio, there’s a number of transmissions where no ID is given. There’s also many cases where no ID could be heard, due to poor conditions. For 2014, there were 651 threads with 2,788 loggings where no station ID was given – that’s almost 33% of the threads. Here’s the complete list of all stationswith
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ADMIN | 30 BELOW
Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
SHORTWAVE PIRATE RADIO 2015 In the world of shortwave pirate radio, there’s a number of transmissions where no ID is given. There’s also cases where no ID could be heard, due to poor conditions. This year, 801 out of 2,183 threads were UNID, or about 37 percent. For 2014, there were 651 threads with 2,788 loggings where no station ID was given – that’salmost 33
FPECONSULTANT
Caught this 3/8/14 While waiting for ANTI Milano to sign on at 1457z 15515kHz, this popped up out of nowhere – NOT caught in progress: African american male “Morning”?HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COMHAM RADIO PROPAGATIONHAM RADIO PROPAGATION MAPRADIO PROPAGATION FORECASTRADIO PROPAGATION MAPSHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
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HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COMHAM RADIO PROPAGATIONHAM RADIO PROPAGATION MAPRADIO PROPAGATION FORECASTRADIO PROPAGATION MAPSHORTWAVE PIRATE
Shortwave Pirate. HFU HF Underground ». Loggings ». Shortwave Pirate (Moderators: Beerus Maximus, Zane, Sealord, Kilokat7, Ray Lalleu, DimBulb, jFarley, refmo, Chris Lobdell, Skipmuck, pirateswl ) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A FERRITE ROD LOOP FOR NDB DX: GENERATION 3 A Ferrite Rod Loop for NDB DX: Generation 3. Resonant Loops (RLs) are an often overlooked form of receiving antenna, but remain my favorite, both from a performance viewpoint and also from a viewpoint of passion: I love the things! Although they are not by any means as popular as their remote cousins, the Shielded Magnetic Loop (SML), RLscan
A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
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30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
PIRATE RADIO STATIONS (BOOK) Pirate Radio Stations: Tuning Into Underground Broadcasts (ISBN 0-8306-9268-1) is a book written in 1990 by Andy Yoder.The book documents the history and state of pirate radio up to that time. Hundreds of stations are identified, analyzed and documented, and hundreds of verification reports, QSL cards, and other memorabilia areincluded.
ABOUT | 30 BELOW
The HFU Blog is an open venue for HFU members to post their own articles, typically content that is too long or detailed for messageboard posts.
TRANSMITTERS
1) Square the input voltage (12 * 12 = 144) and then divide the result by TWICE your measured power. For example, if you measured your unfiltered output at 16 watts, your drain impedance would be approximately 144 / 32 = 4.5 ohms. 2) The output impedance of the bridged audio amplifier is 8 ohms. GRAPHS OF KHZ SIGNAL LEVELS '; } DoMyAd(); ?> Go back to the Graphs of HF Signal Levels page.Graphs of HF Signal Levels page.PIRATE STATIONS
A new pirate station, BOC HF RADIO was heard yesterday, August 30, 2013 on 6925 USB starting at 2310 UTC. The station featured music from the electronic music band Boards of Canada.. The station was logged by quite a few listeners on the HF Underground Pirate Radio Message Board The station opened with a PSK125 transmission:FEARLESS FRED
Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so.HFUNDERGROUND CHAT
HFUnderground Chat
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful! A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COMHAM RADIO PROPAGATIONHAM RADIO PROPAGATION MAPRADIO PROPAGATION FORECASTRADIO PROPAGATION MAP HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
SHORTWAVE UTILITY STATIONS Shortwave Utility Stations. Utility stations presumably serve a useful purpose, for example communication between ship and shore. Many of them only have scheduled broadcasts for a few minutes a day, making them interesting DX targets. TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFUNDERGROUND CHAT
HFUnderground Chat
HFU HF UNDERGROUND
HFU HF Underground - Index. HFU HF Underground. We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable inyour locale.
HFUNDERGROUND.COM PROPAGATION DATA AND TOOLSX-RAY FLUXA INDEXK INDEXIONOSPHERESEE MORE ON HFUNDERGROUND.COMHAM RADIO PROPAGATIONHAM RADIO PROPAGATION MAPRADIO PROPAGATION FORECASTRADIO PROPAGATION MAP HFUNDERGROUND.COM REAL TIME SWBC SHORTWAVE BROADCAST Station: Partial string search Country: Need to use a country code Target: Need to use a target code Language: Need to use a language code Time: UTC, leave blank to use current time. Enter only digits, for example: 0745 Any time (Warning! Will often display a lot of entries!) Frequency range : - kHz Bands: Comma separated values 120m,41m,25m etc. swbc for all bands, ute for utility bands, mw BUILDING THE BASIC LULU TRANSMITTER Jacob December 11, 2016 at 5:40 pm. The original design of lulu as well explained was made by norberto lu8eha who is the greatest radio amateur of the last times in what AM mode refers !, millions of circuits variants of his original designs travel the world today, was the pioneer in The modulation pwm brought to the world of radio amateur in 1978, today Norberto emits only in the AM mode and 30 BELOW | SHORTWAVE PIRATE RADIO IN NORTH AMERICA AND Richard Blaine, operator of Radio Casablanca, wrote and asked why the station didn’t appear in the table of ratio’s of listener posts vs message threads (broadcasts) in the Shortwave Pirate Radio 2015 – A Year In Review post. This ratio can be considered a proxy for the average number of listeners reporting hearing each broadcast for astation.
SHORTWAVE UTILITY STATIONS Shortwave Utility Stations. Utility stations presumably serve a useful purpose, for example communication between ship and shore. Many of them only have scheduled broadcasts for a few minutes a day, making them interesting DX targets. TEACHING LULU TO SING Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so. A SLOPED FOLDED DIPOLE ANTENNA FOR 43 METER BAND A Sloped Folded Dipole Antenna for 43 Meter Band. While I’ve had very good reception using my sky loop antenna, I wanted something that would have better low angle radiation sensitivity, for improved reception of distant stations. The sky loop is 670 ft in perimeter, and runs around the yard at a height varying between about 20 and 50feet
A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFUNDERGROUND CHAT
HFUnderground Chat
CIVIL AIR PATROL
Civil Air Patrol CAP VHF Frequencies. The Civil Air Patrol will use VHF airband frequency 123.1 MHz for air-to-air coordination during search and rescue (SAR). Training ELT usage on 121.6 MHz (old frequency) and 121.775 MHz (new frequency). All frequencies listed below are mixed mode analog FM or digital P25 Project 25 digitalvoice, depending
SHORTWAVE UTILITY STATIONS Shortwave Utility Stations. Utility stations presumably serve a useful purpose, for example communication between ship and shore. Many of them only have scheduled broadcasts for a few minutes a day, making them interesting DX targets.TRANSMITTERS
1) Square the input voltage (12 * 12 = 144) and then divide the result by TWICE your measured power. For example, if you measured your unfiltered output at 16 watts, your drain impedance would be approximately 144 / 32 = 4.5 ohms. 2) The output impedance of the bridged audio amplifier is 8 ohms.ANTENNAS | 30 BELOW
2) A very low Minimum Discernible Signal; RLs can have a sensitivity which belies their size. 3) RLs tend to be amplified loops, but a high Q in the antenna can drastically reduce the gain requirements of the following amplifier. 4) A well balanced RL will generally exhibit strong directionality. PIRATE RADIO STATIONS (BOOK) Pirate Radio Stations: Tuning Into Underground Broadcasts (ISBN 0-8306-9268-1) is a book written in 1990 by Andy Yoder.The book documents the history and state of pirate radio up to that time. Hundreds of stations are identified, analyzed and documented, and hundreds of verification reports, QSL cards, and other memorabilia areincluded.
ABOUT | 30 BELOW
The HFU Blog is an open venue for HFU members to post their own articles, typically content that is too long or detailed for messageboard posts.
FEARLESS FRED
Cut a couple of 7.5 foot lengths of 18 gauge magwire. Secure one end of each in the chuck of a variable speed electric drill. Secure the other pair of ends in a vise, or vice grips, or between your spouse’s teeth. Using short bursts of the drill, spin them together until they have a couple of turns to the inch or so.PIRATE STATIONS
A new pirate station, BOC HF RADIO was heard yesterday, August 30, 2013 on 6925 USB starting at 2310 UTC. The station featured music from the electronic music band Boards of Canada.. The station was logged by quite a few listeners on the HF Underground Pirate Radio Message Board The station opened with a PSK125 transmission: A SIMPLE AND INEXPENSIVE FREQUENCY GENERATOR FOR HOMEBREW One thought on “ A simple and inexpensive frequency generator for homebrew transmitters, the Cypress CY22150 ” jFarley November 14, 2013 at 9:11 pm. Great post, Chris, and very useful!HFUNDERGROUND CHAT
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