Most Popular
    • HF Radio Modifications
      Lots of HF radio mods, including AOR, Kenwood, Yaesu, Icom, Uniden, Alinco, Sony
    • WideBand for Yaesu 817 857 897
      Free Download of Widebander. This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults. Warining: this programs looks like not to be supported. Download and use it at your own risk.
    • Ham.dmz.ro
      Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.
    • Homebrew QRP SSB Transceiver
      This page describes a homebrew QRP SSB transceiver built by WB9IPA.
    • Scanner and tranceiver mods
      Kenwood, Icom, Yaesu, Sony, Uniden Bearcat, Wilson MARK II & IV
    • 80m SSB & CW transceiver
      The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70's
    • Krasnodar - radio schematics
      Contain schematic diagram of many different radio, and some operations instructions.
    • FT-847 Knowledgebase (FAQ)
      Visit the legendary FT-847 FAQ pages ! You'll find a huge knowledgebase especially for the Yaesu FT-847 Transceiver.
    • 40 meter QRP Transceiver
      This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer
    • HF transceiver
      Continuos coverage HF Transceiver by I6WJB & I6YPK
    • 5 Watt 40 Meters transmitter
      This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.
    • Kenwood TS830S
      Kenwood TS-830 manual, tips and fixes
    • FT-897 mods
      FC-30 Fan modification, Mars/Cap mod for Yaesu FT-897, DRM modification for Yaesu FT-897, FT-897 mod for SGC-230 DC power
    • Direct Conversion HF Transceiver with DDS LO
      Direct conversion HF radio with DDS frequency synthesizer is very interesting concept. OH7SV and OH2NLT are experimenting with such rig. Full stories will become available when project matures. Here we have some preview pictures and material.
    • K1TTT Technical Reference
      Technical reference about Accessories, Amplifiers, Antennas, Cable and Connectors, Filters, Geography, Grounding, Gunk, Matching Networks, Projects, Propagation Info Radios, RFI/EMI, Rotors, Station Setup, Towers.
    • Kenwood TS-520 TS-520S Series Manuals
      Downloadable manualsand info for Kenwood TS-520S, Manuals for DG-5, Manuals for AT-200, AT-230 Manuals for VFO-520S
    • Hombrewing an HF Transceiver
      This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
    Pages: 1 2 3 [>>]
    • 160m 20w AM transmitter - Born as a companion transmitter for the Yaesu FRG-7 receiver has become a stand alone tramsmitter for 160 meters band
      [ Hits: 288 | Votes: 0 | Rating: 0.00 ]
    • 40 meter 100 watt Transmitter - 40 meter transmitter by K9GDT
      [ Hits: 4033 | Votes: 7 | Rating: 7.28 ]
    • 40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer
      [ Hits: 8800 | Votes: 6 | Rating: 6.83 ]
    • 5 Watt 40 Meters transmitter - This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.
      [ Hits: 8064 | Votes: 7 | Rating: 5.29 ]
    • 6L6 Transmitter - 40 meters band 5 watts transmitter, uses a 6L6 with a 6X5 rectifier and a 0D3 voltage regulator tube on the screen.
      [ Hits: 1143 | Votes: 0 | Rating: 0.00 ]
    • 80 meters cw transceiver - The home made transceiver covers 3.5 to 3.6 MHz and is CW only by GW4ALG
      [ Hits: 4111 | Votes: 4 | Rating: 7.00 ]
    • 80m CW QRP transmitter - 80 metre ceramic resonator VXO CW Transmitter by VK1PK
      [ Hits: 2086 | Votes: 1 | Rating: 10.00 ]
    • 80m SSB & CW transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70's
      [ Hits: 10341 | Votes: 16 | Rating: 5.19 ]
    • A Homebrew SSB Transceiver for 60 Meters - Description of the design and building of a homebrew phasing-type ssb transceiver for the 60 meter band by Paul Alexander WB9IPA
      [ Hits: 1037 | Votes: 4 | Rating: 8.75 ]
    • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
      [ Hits: 1820 | Votes: 3 | Rating: 5.33 ]
    • An 80 m SSB Transceiver - A project for 80M SSB rig including a DSB/SSB exciters, RX, TX and a 30 Watt PA
      [ Hits: 1573 | Votes: 5 | Rating: 3.80 ]
    • Build a 136 kHx TX - Two versions of a 350 and 900 W output TX for longwave by G3YXM
      [ Hits: 773 | Votes: 0 | Rating: 0.00 ]
    • CDG2000 by OZ9FW - OZ9FW CDG2000 High-end transceiver homebrew project
      [ Hits: 448 | Votes: 0 | Rating: 0.00 ]
    • CDG2000 Transceiver - This site provides supporting material to the RSGB series of articles on the CDG2000 transceiver
      [ Hits: 333 | Votes: 1 | Rating: 1.00 ]
    • Chatterbox Transmitter and Receiver - 160 meters transmitter and receiver by G3NGD
      [ Hits: 626 | Votes: 0 | Rating: 0.00 ]
    • Circuit Improvements for the TS-430S - by Richard L. Measures, AG6K
      [ Hits: 812 | Votes: 2 | Rating: 6.00 ]
    • Direct Conversion HF Transceiver with DDS LO - Direct conversion HF radio with DDS frequency synthesizer is very interesting concept. OH7SV and OH2NLT are experimenting with such rig. Full stories will become available when project matures. Here we have some preview pictures and material.
      [ Hits: 5154 | Votes: 11 | Rating: 8.37 ]
    • DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS
      [ Hits: 1567 | Votes: 4 | Rating: 7.25 ]
    • Fox Tango International - Yaesu FT-101 Users Group purpose and scope is to serve as a sort of benevolent, protective, mutual aid and social club, essentially for the purpose of interchanging information, ideas, experiences and problems. By and for owners of Yaesu amateur radio equipment. Founded in 1972 by Amateur Radio operator Milton Lowens N4ML
      [ Hits: 1859 | Votes: 260 | Rating: 8.84 ]
    • Frequency and VFO - How to keep from being out of band
      [ Hits: 3045 | Votes: 9 | Rating: 2.67 ]
    • FT-847 Knowledgebase (FAQ) - Visit the legendary FT-847 FAQ pages ! You'll find a huge knowledgebase especially for the Yaesu FT-847 Transceiver.
      [ Hits: 8874 | Votes: 277 | Rating: 8.93 ]
    • FT-897 mods - FC-30 Fan modification, Mars/Cap mod for Yaesu FT-897, DRM modification for Yaesu FT-897, FT-897 mod for SGC-230 DC power
      [ Hits: 5387 | Votes: 8 | Rating: 3.63 ]
    • Gain receiver performance - Tips for those who wish to gain another level of performance from their receiver
      [ Hits: 2892 | Votes: 2 | Rating: 8.00 ]
    • Ham.dmz.ro  pop - Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.
      [ Hits: 22557 | Votes: 78 | Rating: 7.71 ]
    • HF Radio Modifications  pop - Lots of HF radio mods, including AOR, Kenwood, Yaesu, Icom, Uniden, Alinco, Sony
      [ Hits: 44334 | Votes: 38 | Rating: 4.79 ]
    • HF Rigs db comparison - XLS file with technical specifications about ham radio transceivers
      [ Hits: 1011 | Votes: 1 | Rating: 2.00 ]
    • HF transceiver - Continuos coverage HF Transceiver by I6WJB & I6YPK
      [ Hits: 8617 | Votes: 3 | Rating: 6.00 ]
    • Hombrewing an HF Transceiver - This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
      [ Hits: 4263 | Votes: 6 | Rating: 8.33 ]
    • Home Brew HF SSB Transceiver - KL7GQ Home Brew HF SSB Transceiver
      [ Hits: 2060 | Votes: 0 | Rating: 0.00 ]
    • Homebrew QRP SSB Transceiver  pop - This page describes a homebrew QRP SSB transceiver built by WB9IPA.
      [ Hits: 18889 | Votes: 16 | Rating: 7.94 ]
    • I0SKK CDG2000 transceiver - CDG2000 is a superb transceiver, mainly designed as a high performance receiver by three G-land OM Colin Horrabin G3SBI; Dave Roberts G8KBB and George Faer G3OGQ.
      [ Hits: 355 | Votes: 1 | Rating: 1.00 ]
    • IC-706 Amp T/R Interface, K6XX - External Amplifier Keying from the IC-706 by Bob Wolbert, K6XX
      [ Hits: 1746 | Votes: 7 | Rating: 7.71 ]
    • IC-751 transceiver RAM battery replacement - How to replace the lithium battery in this ICOM radio
      [ Hits: 868 | Votes: 4 | Rating: 8.00 ]
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