hf radio

hf radio

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• IAT Interactive Antenna Table - UR5EAZ
  
  IAT is an excel sheet table evaluate parameters of VHF UHF antennas edited by Vladimir ...
  [ Hits: 106 | Votes: 4 | Rating: 9.5 ]
• Double Quad Antenna for VHF UHF - IW5EDI
  
  The structure of this dual band VHF UHF antenna is very simple It consists of ...
  [ Hits: 248 | Votes: 6 | Rating: 6.33 ]

• W3DZZ Multiband Antenna - I6IBE
  
  An easy to build and extremely high performance antenna works perfectly on all HF bands ...
  [ Hits: 465 | Votes: 3 | Rating: 7.67 ]

• Building a VHF Contest Station - W5ZN
  
  Building an amateur station for competitive radiosport involves a number of critical steps regardless of ...
  [ Hits: 338 | Votes: 1 | Rating: 4 ]

• Pirate QSL Collection - hfunderground
  
  A QSL Cards collection divided into North American Shortwave Pirate Radio QSLs abd European Shortwave ...
  [ Hits: 118 | Votes: 0 | Rating: 0 ]

• Central States VHF Society - CSVHFS
  
  The Central States VHF Society Inc CSVHFS is a not for profit organization chartered in ...
  [ Hits: 55 | Votes: 0 | Rating: 0 ]

• Automatic Position Reporting System for HF - sarcnet
  
  A basic introductionto APRS on HF Bands for radioamateurs and how to setup an APRS ...
  [ Hits: 150 | Votes: 0 | Rating: 0 ]

• Operating AMTOR - G4AON
  
  Putting one of those old modems back into use AMTOR is an acronym for AMateur ...
  [ Hits: 81 | Votes: 0 | Rating: 0 ]

• FreeDV - Digital Voice for HF bands - K9XN
  
  FreeDV uses an audio codec as a software based modem to decode and encode the ...
  [ Hits: 92 | Votes: 0 | Rating: 0 ]

• Global Ionosphere Radio Observatory - GIRO
  
  In cooperation with the URSI Ionosonde Network Advisory Group INAG the LGDC promotes cooperative agreements ...
  [ Hits: 125 | Votes: 0 | Rating: 0 ]

• HF communication prediction tools - BOM
  
  Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to ...
  [ Hits: 169 | Votes: 0 | Rating: 0 ]
• Tropospheric Ducting Forecast Europe - dxinfocentre
  
  The areas noted in the forecast have the necessary atmospheric conditions to produce tropospheric bending ...
  [ Hits: 157 | Votes: 1 | Rating: 10 ]

• FLEX-6400M DSP Review - N9EWO
  
  A guest review of the FLEX 6400M DSP HF Trasnceiver considering just the receiver part ...
  [ Hits: 136 | Votes: 0 | Rating: 0 ]

• Monitoring The Airwaves During Ukrainian Conflict - K0LWC
  
  This article reports and collect some frequencies used during 2020 Ukraine war and reported as ...
  [ Hits: 532 | Votes: 3 | Rating: 9.67 ]

• Scanning frequencies - J Ward
  
  HF digital mode transmissions voice transmissions in HF and VHF Bands collected in several XLS ...
  [ Hits: 139 | Votes: 0 | Rating: 0 ]

• Spy Numbers Stations - hfunderground
  
  Spy Numbers Stations are shortwave radio stations that are speculated to have been broadcasting since ...
  [ Hits: 176 | Votes: 0 | Rating: 0 ]

• 432 MHz 100W RF Power Amplifier - VK3BRZ
  
  This article describes the construction of a 100 Watt 70 cm amateur band linear power ...
  [ Hits: 240 | Votes: 1 | Rating: 9 ]

• 70cm Beacon - S57NAN
  
  PLL synthesized 70cm CW beacon exciter The exciter is built arround a slightly more advanced ...
  [ Hits: 131 | Votes: 1 | Rating: 10 ]

• EA2CW Nanokeyer - EA2CW
  
  HFN Hands Free Nanokeyer is a 3D Printer made morse keyer In this project the ...
  [ Hits: 97 | Votes: 1 | Rating: 10 ]

• Tulip SDR - SP3OSJ
  
  SDR Project for a compact amateur radio software defined radio trasceiver covering HF bands all ...
  [ Hits: 369 | Votes: 5 | Rating: 8 ]

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