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• RF Transmission Line Loss Calculator - This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator. It also gives an estimate of the mismatched loss if the mismatch is specified.
  [ Hits: 579 | Votes: 2 | Rating: 1 ]

• Designing Driven Elements in Yagi antennas - The design and feeding of driven elements for VHF/UHF Yagi antennas , modeling, observations and some case studies by Graham Daubney F/G8MBI
  [ Hits: 1133 | Votes: 2 | Rating: 6 ]

• NVIS antenna design - Theory, Modeling, and Practical Applications By W5JCK, presentation in PDF File
  [ Hits: 3350 | Votes: 7 | Rating: 3.57 ]

• Eggbeater II Omni LEO Antennas - Presented here is a high-performance, circularly polarized omni-directional antenna that is easy to build, easy to tune, inexpensive, and will work all the mode J Low Earth Orbit (LEO) satellites
  [ Hits: 2904 | Votes: 2 | Rating: 8.5 ]
• A High Gain Mode J/B Yagi Antenna - A 70 cm and 2 m arrow-like antenna by DF8GH
  [ Hits: 3119 | Votes: 3 | Rating: 5.67 ]

• VP8BUG VP8BUH Falklands Isl 2009 - DX pedition from Port Stanley, Falkland Islands (SA-002) calls : VP8BUG (digi-modes) and VP8BUH (SSB) QSL only via: manager EB7DX
  [ Hits: 264 | Votes: 0 | Rating: 0 ]

• JT6M.org - The purpose of this web site is to promote JT6M as a mode of communication on both 6M and 4M band and guide users through setting up and using JT6M effectively. Optimised for 6 metre band Meteor Scatter, JT6M allows you to make meteor scatter contacts easily. JT6M is part of the WSJT suite of digital weak signal software applications developed by Joe Taylor, K1JT
  [ Hits: 656 | Votes: 1 | Rating: 4 ]

• What's PSK-31 - Presentation about PSK-31 digital mode by Dave, K6AIX
  [ Hits: 693 | Votes: 0 | Rating: 0 ]

• Generation of Long-Delay Echoes - Different theory models to explain generation of long delayed radio echoes by D. B. Muldrew
  [ Hits: 305 | Votes: 0 | Rating: 0 ]

• IC706 CAT Control - Icom IC-706 Cat control program, tested with Icom models 706, 706MKII, 706MKII/G and IC718 transceivers by IZ2BKT, Mauro.
  [ Hits: 7193 | Votes: 9 | Rating: 6.11 ]

• Kenwood TS-2000X Tx Distortion fix - VE2ZAZ and distorted audio in SSB on some models prior 2006
  [ Hits: 1205 | Votes: 3 | Rating: 10 ]

• TS50-High-Power-Mod - With that small modification you'll get a Trim-Pot and the TS-50 is able to run up to 180 W output by DK0WFC
  [ Hits: 3005 | Votes: 17 | Rating: 5.18 ]

• Ten-Tec Orion 9 MHz IF Output - This article describe hot extract a wideband 9 MHz IF sample signal from a Ten-Tec Orion model 565 by VE7TK
  [ Hits: 931 | Votes: 3 | Rating: 6.33 ]

• YAESU FT847 all mode cable - Yaesu FT 847 CAT cable
  [ Hits: 1095 | Votes: 1 | Rating: 1 ]

• About GAP HF Vertical Antennas - A review on current HF Vertical antenna models offered by GAP at euro-qso
  [ Hits: 1184 | Votes: 4 | Rating: 5.25 ]

• Digital Master 780 - Digital Master 780 is a windows multi-mode program which uses Ham Radio Deluxe for radio control. It is part of HRD package and support PSK, QPSK, Contestia, CW, DominoEx, Hell, MFSK, MT63, OLIVIA, RTTY, RTTYM, THROB and SSTV. Free version was made available with HRD 5.
  [ Hits: 24740 | Votes: 60 | Rating: 6.28 ]

• HamPort - A Free windows, universal program for RIG control, can read and set mode and frequency on your transceiver. The program can control ICOM, Yaesu and Kenwood transceivers, by DXSoft
  [ Hits: 3002 | Votes: 2 | Rating: 8.5 ]

• CMOS Super Keyer - Home made keyer with 8 memories, auto spacing, adjustable speed & weighting, separate paddle and key inputs, beacon mode, positive or negative keying, fuse, extremely low power requirements, and a bullet proof housing by AA5TB
  [ Hits: 1863 | Votes: 1 | Rating: 6 ]

• Tri-Mode Buffer Amplifier Box - The TMB-1 is an RF amplifier unit / receiving accessory that can be used with a low-impedance broadband loop, a high-impedance terminated loop (such as a Pennant, Flag, or Kaz Delta), and whip (telescoping rod) antennas.
  [ Hits: 964 | Votes: 1 | Rating: 1 ]

• Regenerative receiver for beginners - A modern version of the classic regenrative receiver designed and built by Charles Kitchin ARRL Article
  [ Hits: 7134 | Votes: 3 | Rating: 4 ]

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