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• Cross-Yagi 10el Antenna for 70cm - UR3QQJ
  
  10 Elements Cross Yagi Antenna for 433 MHz The base of the 10el antenna is ...
  [ Hits: 177 | Votes: 6 | Rating: 8.83 ]

• The Magloop Antenna Calculator - VK3CPU
  
  The Magloop Antenna Calculator was developed to predict the characteritics of a small loop aka ...
  [ Hits: 298 | Votes: 5 | Rating: 8.2 ]
• Microvert antenna calculator - JH1UMV
  
  Online antenna calculator for the microvert capacitive antenna
  [ Hits: 124 | Votes: 2 | Rating: 8 ]

• Phased Array Antennas - YO3DAC
  
  Phased array antennas are composed of multiple individual antenna elements that can have their phase ...
  [ Hits: 82 | Votes: 0 | Rating: 0 ]

• An introduction to the air cored coil - R.Clarke
  
  We use the term air core coil to describe an inductor that does not depend ...
  [ Hits: 107 | Votes: 1 | Rating: 2 ]

• How to find out if your choke works - VA3KOT
  
  How many times have you heard the advice to coil a few turns of coax ...
  [ Hits: 211 | Votes: 1 | Rating: 9 ]

• Short Multiband Dipole Array - K7MEM
  
  A multiband shortened fan dipole This page offers and online calculator that can be really ...
  [ Hits: 229 | Votes: 0 | Rating: 0 ]

• K0UO Rhombix Antenna Farm The Ground - K0UO
  
  Modeling an antenna over real terrain gives you a visual picture of how terrain impacts ...
  [ Hits: 144 | Votes: 1 | Rating: 10 ]

• HF DXView Propagation Map - NG0E
  
  This map shows real time radio propagation from stations operating on 11 bands between 1 ...
  [ Hits: 304 | Votes: 5 | Rating: 7.6 ]

• Interactive Worldwide Map of Amateur Radio and more - IU1FIG
  
  The first interactive map of amateur radio repeaters and more updated in REAL TIME ...
  [ Hits: 433 | Votes: 7 | Rating: 9.72 ]

• Aircraft Scatter on 6 Meter FT8 - VE3VN
  
  Aircraft scatter is easily seen on the spectrogram window of digital communication apps when you ...
  [ Hits: 180 | Votes: 2 | Rating: 9.5 ]

• HF-Start WebTool - NICT
  
  HF START can estimate HF propagation between any given 2 points over Japan in real ...
  [ Hits: 111 | Votes: 0 | Rating: 0 ]

• VHF APRS Propagation Map - APRS
  
  VHF Based on realtime APRS reports This map shows real time radio propagation from stations ...
  [ Hits: 315 | Votes: 0 | Rating: 0 ]

• Power and VSWR Indication on the FT-817 - KA7OEI
  
  Reflected power and VSWR Metering on Yaesu FT 817 and proper interpretation of real values ...
  [ Hits: 148 | Votes: 0 | Rating: 0 ]
• FT-817 Batteries for Air Travel - VK3YY
  
  Three cell Lipo batteries for the FT 817 work really well although not really sure ...
  [ Hits: 140 | Votes: 0 | Rating: 0 ]

• AircraftScatterSharp - W3SZ
  
  Aircraft Scatter Sharp is a windows application to calculate and assist airscatter operations Real time ...
  [ Hits: 146 | Votes: 0 | Rating: 0 ]

• HamAward - IW1FRU
  
  HamAward is a cloud based amateur radio logbook allowing multi operators multi station activities featuring ...
  [ Hits: 110 | Votes: 0 | Rating: 0 ]

• TNXLOG - tnxqso
  
  This log software sends current QSOs to TNXQSO com server receives from your TNXQSO com ...
  [ Hits: 101 | Votes: 0 | Rating: 0 ]

• Proplab-Pro - Solar Terrestrial Dispatch
  
  Ray trace radio signals through a realistic three dimensional ionosphere using Proplab Pro This software ...
  [ Hits: 171 | Votes: 0 | Rating: 0 ]

• Resistor combination finder - IN3OTD
  
  If you need a non standard resistor value you could probably realize a close match ...
  [ Hits: 56 | Votes: 1 | Rating: 10 ]

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