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• The Antenna Torque Calculator - Matteo Bavecchi
  
  This unique online tool helps Ham Radio operators to choose the right rotator for medium ...
  [ Hits: 184 | Votes: 1 | Rating: 1 ]

• Folded dipole antennas: terminated vs un-terminated - N4SPP
  
  As the name suggests it is simply a dipole with the tips folded towards each ...
  [ Hits: 496 | Votes: 9 | Rating: 6.78 ]

• Multi-band End-Fed Antenna - F. Dorenberg
  
  An excellent guide to homebrewing multi band end fed antennas The article embed several drawings ...
  [ Hits: 1106 | Votes: 6 | Rating: 4.5 ]

• Notes on Designing LF-MF antennas - N6LF
  
  A free book on designign LF MF antennas The six chapters in the body of ...
  [ Hits: 267 | Votes: 2 | Rating: 9.5 ]

• Ground Systems as a Factor in Antenna Efficiency - Brown Lewis Epstein
  
  A classic document originally presented in Proceedings of the Institute of Radio Engineers in 1937 ...
  [ Hits: 399 | Votes: 1 | Rating: 1 ]

• The Easy Way Antenna Systems - WB5IIR
  
  This document is a must read for anyone considering building a good low cost HF ...
  [ Hits: 635 | Votes: 2 | Rating: 4.5 ]

• The K2AV FCP Single Wire Folded CounterPoise - K2AV
  
  Efficient Low Band Counterpoise for Restricted Circumstances Loss Avoidance Opportunities and Techniques for the Low ...
  [ Hits: 284 | Votes: 0 | Rating: 0 ]

• K7CSW - Saltlake Peaks Amateur Radio Club - K7CSW
  
  SPARC The Saltlake Peaks Amateur Radio Club founded by employees of L 3 Communications located ...
  [ Hits: 166 | Votes: 0 | Rating: 0 ]

• Argent Data Systems - Argent Data Systems
  
  Small company based in Santa Maria California designing and manufacturing electronic products for amateur radio ...
  [ Hits: 208 | Votes: 0 | Rating: 0 ]

• Small Panel Kits - Jeff Crystal
  
  High performance IPX7 waterproof small solar panels and battery packs to power radios sensors and ...
  [ Hits: 331 | Votes: 0 | Rating: 0 ]

• Portable Rotation - Portable Rotation
  
  Portable Rotation manufacturer of portable antenna rotor and support systems including AZ EL portatble rotor ...
  [ Hits: 243 | Votes: 0 | Rating: 0 ]

• Alpha Antenna - Steve
  
  Civilianized and Militarized HF antenna systems for Portable Base Mobile Manpack Antenna manufacturer based in ...
  [ Hits: 625 | Votes: 4 | Rating: 10 ]

• Comsystems Solutions - Tony Gandolfo
  
  HF Antennas is a division of Comsystems Solutions we manufacture wire broadband antennas and different ...
  [ Hits: 188 | Votes: 2 | Rating: 3 ]

• Duracomm Power Supplies - Duracomm
  
  Power Solutions for Durable Communication Systems Founded in Sep 1992 DuraComm Power Supplies is a ...
  [ Hits: 140 | Votes: 0 | Rating: 0 ]
• Alpha Power Systems LLC - Alpha Power Systems
  
  Alpha Power Systems LLC is committed to offering the highest quality of surge protection and ...
  [ Hits: 131 | Votes: 0 | Rating: 0 ]

• MSL - Mechanical Systems Lehmann - Telescopic Masts and Towers
  
  Specialist for vertically adjustable supporting frameworks including telescopic masts and telescopic towers for ham radio ...
  [ Hits: 202 | Votes: 0 | Rating: 0 ]

• Amateur Radio Digital Voice Systems - W9HPX
  
  A Comparison of most popular Amateur Radio Digital Voice Systems DMR D Star System Fusion ...
  [ Hits: 463 | Votes: 0 | Rating: 0 ]

• TelTad Online Shop - TelTad
  
  TelTad is a Polish amateur radio dealer with an online shop Products offered includes all ...
  [ Hits: 193 | Votes: 0 | Rating: 0 ]

• TE Systems 6 Meter Amplifier Review - k5nd
  
  TE Systems 0510G 50 MHz meter amplifier set up for 10 watts in and 170 ...
  [ Hits: 157 | Votes: 2 | Rating: 5 ]

• Introduction to RF & Wireless Communications Systems - National Instruments
  
  This tutorial covers an introduction to RF wireless and high frequency signals and systems includes ...
  [ Hits: 283 | Votes: 1 | Rating: 6 ]

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