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• 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: 1131 | 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 ]

• Operating in SPLIT mode - He's operating split? What does that mean? By Terry Lines, KD5RA
  [ Hits: 658 | Votes: 1 | Rating: 8 ]

• Tiny Trak & eTrex GPS - Tiny Trak is a simple choice for tracking, simply by using a usual VHF and TinyTrak as APRS modem.
  [ Hits: 441 | Votes: 3 | Rating: 5.33 ]

• SSTV Mode specifications - How SSTV Works, article by F1ULT
  [ Hits: 497 | 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 ]

• 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 ]

• AATest - A special edition of AALog, optimized for the use in a lot of different contests. It can export file in Cabrillo, .SUM and .ALL files, ADIF. To use this program in CW and digital modes you need to use CwType and TrueTTY.
  [ Hits: 857 | Votes: 0 | Rating: 0 ]

• ROS ham radio modem - ROS Multimode software for Ham Radio Operators
  [ Hits: 1788 | Votes: 6 | Rating: 8 ]

• CwType  ^updated - The terminal program for CW-operators. You can transmit both from the keyboard and from a paddle connected to game or LPT ports. You can also operate in paddle iambic mode. Control of the transceiver (PTT and CW keying) is made through one of the COM or LPT ports. CwType can integrate with AALog software
  [ Hits: 2806 | Votes: 2 | Rating: 5 ]

• 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 ]

• Baycom Modem - Baycom modem, The famous "PMP" (Poor man packet!)
  [ Hits: 510 | Votes: 0 | Rating: 0 ]

• 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 ]

• Signal Source for AO40 mode S - Signal source circuit for 2.4 GHz by sv1bsx
  [ Hits: 713 | Votes: 0 | Rating: 0 ]

• 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 ]
• The Modern Armstrong Regenerative Receiver - Ramon Vargas Patron articel on regenerative receiver project
  [ Hits: 3082 | Votes: 3 | Rating: 8.67 ]

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