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HF Radios
HF radio modifications, ham radio mods kenwood icom yaesu alinco mods
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- HF Radio Modifications
- Lots of HF radio mods, including AOR, Kenwood, Yaesu, Icom, Uniden, Alinco, Sony
- KB2LJJ Radio Mods Database
- The KB2LJJ radio mods database offers approximately 12,000 Radio Mod's, circuits and manuals.
- Ham.dmz.ro
- Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.
- Electronic Service Pros
- HAM/Broadcast, Modifications & Repair, D-104 mods, TS-830 TS-530 mods
- Scanner and tranceiver mods
- Kenwood, Icom, Yaesu, Sony, Uniden Bearcat, Wilson MARK II & IV
- Homebrew QRP SSB Transceiver
- This page describes a homebrew QRP SSB transceiver built by WB9IPA.
- Krasnodar - radio schematics
- Contain schematic diagram of many different radio, and some operations instructions.
- Mods.DK
- Large collection of radio mods and TNC mods with search facility
- Shortwave Radio Reviews
- Collection of SW receiver reviews written by readers of Rec.radio.shortwave
- HF transceiver
- Continuos coverage HF Transceiver by I6WJB & I6YPK
- 6m SSB/CW transceiver
- Building a SSB & CW QRP transceiver for 50 Mhz
- 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
- WideBand for Yaesu 817 857 897
- This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults.
- FT-847 Knowledgebase (FAQ)
- Visit the legendary FT-847 FAQ pages ! You'll find a huge knowledgebase especially for the Yaesu FT-847 Transceiver.
- 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 TS830S
- Kenwood TS-830 manual, tips and fixes
- 40 meter CW/SSB Receiver
- The K9GDT 40m receiver
Alphabetical
- Electronic Service Pros
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- HAM/Broadcast, Modifications & Repair, D-104 mods, TS-830 TS-530 mods
[Hits: 14002 | Votes: 22 | Rating: 5.54] - Ham.dmz.ro
updated
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- Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.
[Hits: 16296 | Votes: 53 | Rating: 7.90] - HF Radio Modifications
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- Lots of HF radio mods, including AOR, Kenwood, Yaesu, Icom, Uniden, Alinco, Sony
[Hits: 36702 | Votes: 26 | Rating: 4.59] - KB2LJJ Radio Mods Database
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- The KB2LJJ radio mods database offers approximately 12,000 Radio Mod's, circuits and manuals.
[Hits: 22929 | Votes: 45 | Rating: 6.66] - Scanner and tranceiver mods
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- Kenwood, Icom, Yaesu, Sony, Uniden Bearcat, Wilson MARK II & IV
[Hits: 11014 | Votes: 54 | Rating: 6.32] - 160m CW Transceiver
- Transmit: 6KD6 for final stage 50W out put. Co-operated with 6ZP1 QRP'er. Receive: RF-1 IF-2 stage single super heterodyne with mechanical filter.
[Hits: 772 | Votes: 0 | Rating: 0.00] - 40 meter 100 watt Transmitter
- 40 meter transmitter by K9GDT
[Hits: 3220 | Votes: 6 | Rating: 6.83] - 40 meter CW/SSB Receiver
- The K9GDT 40m receiver
[Hits: 3631 | Votes: 16 | Rating: 5.50] - 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: 1183 | Votes: 0 | Rating: 0.00] - 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: 2848 | Votes: 3 | Rating: 3.33] - 6m SSB/CW transceiver
- Building a SSB & CW QRP transceiver for 50 Mhz
[Hits: 6442 | Votes: 4 | Rating: 7.25] - 80 meters cw transceiver
- The home made transceiver covers 3.5 to 3.6 MHz and is CW only by GW4ALG
[Hits: 802 | Votes: 2 | Rating: 9.00] - 80m CW QRP transmitter
- 80 metre ceramic resonator VXO CW Transmitter by VK1PK
[Hits: 437 | Votes: 0 | Rating: 0.00] - 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: 5580 | Votes: 10 | Rating: 5.70] - 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: 307 | Votes: 1 | Rating: 10.00] - 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: 876 | Votes: 2 | Rating: 3.00] - Almost all digital electronics
- This site is dedicated to electronics hobbyists, engineers, and Radio Amateurs interested in circuit design, homebrew and kit projects.
[Hits: 3222 | Votes: 3 | Rating: 9.00] - An 80 m SSB Transceiver
- A project for 80M SSB rig including a DSB/SSB exciters, RX, TX and a 30 Watt PA
[Hits: 954 | Votes: 1 | Rating: 1.00] - AP 700 Modifications
- Contain many information about the Danish build radio AP700. Technical specification, diagrams and modification. Unfortunately the site is only in Danish language.
[Hits: 645 | Votes: 1 | Rating: 1.00] - AP2000 Modifications
- This is a verry good site that contain many information about the Danish build radio AP2000. Technical specification, diagrams and modification. Unfortunately the site is only in Danish language.
[Hits: 656 | Votes: 2 | Rating: 5.50] - AR3000 Resource Center
- This site is dedicated to the AR3000/A owners
[Hits: 1094 | Votes: 7 | Rating: 6.14] - Build a 136 kHx TX
- Two versions of a 350 and 900 W output TX for longwave by G3YXM
[Hits: 237 | Votes: 0 | Rating: 0.00] - Chatterbox Transmitter and Receiver
- 160 meters transmitter and receiver by G3NGD
[Hits: 143 | Votes: 0 | Rating: 0.00] - Circuit Improvements for the TS-430S
- by Richard L. Measures, AG6K
[Hits: 375 | Votes: 0 | Rating: 0.00] - 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: 3220 | Votes: 9 | Rating: 9.79] - DX-302 Communications Receiver
- features, Operation and Specifications about Realistic DX 302
[Hits: 2753 | Votes: 40 | Rating: 7.28] - 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: 1157 | Votes: 245 | Rating: 8.85] - Frequency and VFO
- How to keep from being out of band
[Hits: 2587 | Votes: 9 | Rating: 2.67] - FT-1000MP Band Select Output and Amp Keying Interface
- FT-1000MP Automatic Band Selection Interface
Bob Wolbert, K6XX
[Hits: 1278 | Votes: 2 | Rating: 9.50] - 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: 4830 | Votes: 235 | Rating: 8.94] - 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: 1849 | Votes: 4 | Rating: 5.25] - FT847 Web Site
- Dedicated to Yaesu FT847 with mods infos and links... by F1MDT
[Hits: 2382 | Votes: 9 | Rating: 8.22] - Gain receiver performance
- Tips for those who wish to gain another level of performance from their receiver
[Hits: 2452 | Votes: 2 | Rating: 8.00] - HF Rigs comparison
- Here are the most popular features of the current HF radios. You can see which one fills your needs! AES HF rigs comparison chars, includes, ICOM Alinco, Yaesu and Kenwood radios.
[Hits: 1363 | Votes: 4 | Rating: 7.00] - HF Rigs db comparison
- XLS file with technical specifications about ham radio transceivers
[Hits: 538 | Votes: 0 | Rating: 0.00] - HF transceiver
- Continuos coverage HF Transceiver by I6WJB & I6YPK
[Hits: 7020 | 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: 2286 | Votes: 5 | Rating: 8.00] - Homebrew QRP SSB Transceiver
- This page describes a homebrew QRP SSB transceiver built by WB9IPA.
[Hits: 10338 | Votes: 13 | Rating: 7.62] - IC-706 Amp T/R Interface, K6XX
- External Amplifier Keying from the IC-706
by Bob Wolbert, K6XX
[Hits: 844 | Votes: 4 | Rating: 7.50] - IC-751 transceiver RAM battery replacement
- How to replace the lithium battery in this ICOM radio
[Hits: 217 | Votes: 2 | Rating: 10.00] - Icom 706MKIIG fan mod
- Modification of internal fan on receive
[Hits: 1244 | Votes: 96 | Rating: 9.80] - Icom 706MKIIG mod of internal fan on rx
- Unlike the old Icom 706, the 706 MKIIG HF/VHF/UHF multi-mode ham radio transceiver do not keep its internal blower running all the time in receive mode.
[Hits: 2006 | Votes: 118 | Rating: 9.45] - ICOM 746 Temperature Measurements
- The ICOM 746-Pro has acquired a history of NEC 1678G (IC-151) MMIC and driver transistor 2SK2975 failures. The failure of IC-151 appears to be a combination of ESD damage from electrostatic charge on the antenna entering IC-151, and perhaps thermal heat.
[Hits: 894 | Votes: 0 | Rating: 0.00] - Icom 756 Pro Page
- Includes FAQ, operating aids and notes for digital modes use.
[Hits: 2080 | Votes: 33 | Rating: 5.31] - ICOM IC-706MKII Modification
- ICOM IC-706MKII out of band Xmit Modification
[Hits: 2502 | Votes: 15 | Rating: 5.41] - ICOM IC-746PRO Dead TX
- The purpose of this web page is to try to investigate the ICOM IC-746PRO Dead TX problem reported by many radio amateurs through out the world; and unfortunately not properly taken care of by ICOM. If you are the owner of either the ICOM IC-746PRO or the IC-7400 you may already have experienced the Dead TX Issue. If not you may sooner or later.
[Hits: 2300 | Votes: 4 | Rating: 9.25] - Icom interface box
- interface box for Icom rigs that includes a band output port and a CI-Vtocomputer serial interface
[Hits: 1223 | Votes: 2 | Rating: 3.50] - Improvements for TS-830S
- Circuit Improvements and Maintenance Procedures for the TS-830S
[Hits: 593 | Votes: 2 | Rating: 9.00] - JRC NRD-525
- Tout connaître sur le récepteur JRC NRD-525.
All about the JRC NRD-525 receiver.
EPROM, RS-232.
[Hits: 1231 | Votes: 36 | Rating: 8.81] - K1TTT Technical Reference
Priority listing
- 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.
[Hits: 4152 | Votes: 5 | Rating: 5.60] - K6XX Amateur Radio articles
- An assortment of Amateur Radio-related technical articles written for the JUG, the newsletter of the Northern California Contest Club. Topics include unique but simple and useful radio modifications and accessories, and rig reviews.
[Hits: 2634 | Votes: 6 | Rating: 6.33] - 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
[Hits: 3091 | Votes: 8 | Rating: 4.00] - KENWOOD TS-940 Page
- Comprehesive page on TS-940 TS-940 reference maintained by ZL4AI Jeff
[Hits: 1756 | Votes: 9 | Rating: 7.55] - Kenwood TS-950 page
- Lot's of info on 950sdx tranceiver by Jeff King ZL4AI/DU7
[Hits: 1180 | Votes: 4 | Rating: 10.00] - Kenwood TS-950S RF gain mod
- The Kenwood TS-950S and TS-950SD HF transceivers are fine radios. However, many, if not all,
of them were produced with a design flaw which allows the RG GAIN control to cease function in
the presence of a strong signal IF the AGC has been turned OFF
[Hits: 844 | Votes: 1 | Rating: 1.00] - Kenwood TS690S
- Expanding frequency coverage, transceiver Labtest by Christoph Petermann DF9CY
[Hits: 2685 | Votes: 33 | Rating: 5.56] - Kenwood TS830S
- Kenwood TS-830 manual, tips and fixes
[Hits: 4071 | Votes: 20 | Rating: 6.95] - Kenwood TS830S Survival Guide
- Excellent collection of TS 830S documents collected from the web and other sources by DL9AI, PDF File
[Hits: 1667 | Votes: 8 | Rating: 8.38] - Krasnodar - radio schematics
- Contain schematic diagram of many different radio, and some operations instructions.
[Hits: 8488 | Votes: 91 | Rating: 5.72] - Mizuho products
- Mizuho Tsushin Co. was a small Japanese manufacturer of QRP radios and kits, shortwave receiver accessories, and AM broadcast band receiver kits and antennas
[Hits: 1720 | Votes: 1 | Rating: 10.00] - Mods.DK
- Large collection of radio mods and TNC mods with search facility
[Hits: 8301 | Votes: 51 | Rating: 5.78] - NorCal 20 Modifications
- by Larry East, W1HUE June 1999
[Hits: 294 | Votes: 0 | Rating: 0.00] - PY2MOK Leo
- Repair services in Brasil, manutencao consertos de equipamentos de Radioamador, Yaesu, Kenwood, Delta, Collins, Drake.
[Hits: 732 | Votes: 2 | Rating: 5.50] - QST signalink review - SL-1
- Designed to handle audio signal interfacing as well as transmit/receive switching Reviewed by Steve Ford, WB8IM
[Hits: 263 | Votes: 0 | Rating: 0.00] - Radio QRP - The Art of Low Power
- QRP is The Art of Low Power Radio where the challenge is to operate and/or build AM radio transmitters usinga bare minimum of components, money and construction skill.
[Hits: 2138 | Votes: 11 | Rating: 8.18] - Receivers sorted by IM3
- Sorted by Intermodulation. Best receiver first.
This is a measure of how badly a close-spaced signal will trash your receiving with spurious signals or splatter sounds,
[Hits: 43 | Votes: 0 | Rating: 0.00] - RF-overload for Icom IC 746 756 series
- The following transceivers can be susceptible to damage from a strong RF field (or RF-overload) IC-746 IC-746PRO IC-756 IC-756PRO IC-756PROII
IC-756PROIII n1eq explain why
[Hits: 635 | Votes: 0 | Rating: 0.00] - Shortwave Converter
- This is a simple circuit that when placed near an ordinary AM broadcast radio will allow you to receive international shortwave broadcasts in the 5-6 MHz band
[Hits: 670 | Votes: 0 | Rating: 0.00] - Shortwave Radio Reviews
- Collection of SW receiver reviews written by readers of Rec.radio.shortwave
[Hits: 7246 | Votes: 38 | Rating: 6.15] - Sierra mods
- This is a collection of emails collected over time which indicate how to put some mods into your Sierra transceiver. Most of the mods have to do with improving the power output.
[Hits: 288 | Votes: 1 | Rating: 10.00] - SV8CS Remote shack system
- Remote controlled station from Zante greece
[Hits: 624 | Votes: 1 | Rating: 1.00] - Ten-Tec Orion Review
- Ten-Tec Orion Transceiver - contester’s review by Yuri Blanarovich, K3BU, VE3BMV, VE1BY
[Hits: 581 | Votes: 2 | Rating: 5.50] - The Islander HF RTX
- A practical solution by Cuban radio amateurs, hybrid circuit with mostly defunct TV set parts.
[Hits: 1341 | Votes: 0 | Rating: 0.00] - The Kenwood TS-830 Survival Guide
- A downloadable manual-like guide containing a lot of technical information about the Trio/Kenwood HF transceiver TS-830.
[Hits: 2598 | Votes: 18 | Rating: 8.72] - The manhatten style nb6m 10
- An Homebrew 10 Meter transceiver
[Hits: 431 | Votes: 1 | Rating: 2.00] - The Rock-Mite
- A QRP RTX project by IS0VSU Franco in PDF file
[Hits: 325 | Votes: 0 | Rating: 0.00] - The ROSE 80 CW Transceiver
- Build a 5 watt, 80 meter QRP CW Transceiver Designed by N1HFX
[Hits: 886 | Votes: 1 | Rating: 1.00] - The Super Sixty transceiver
- The 'Super-Sixty' a 5 MHz 60 meters band transmitter & receive converter
[Hits: 346 | Votes: 0 | Rating: 0.00] - TL-922 Improvements
- Circuit improvements for the TL-922 by Richard L. Measures, AG6K
[Hits: 1773 | Votes: 29 | Rating: 7.97] - Transworld TW100
- Of interest to users of the Transworld TW100 series of transcievers.
[Hits: 1703 | Votes: 10 | Rating: 5.50] - TS-430S Improvements
- Circuit improvements for the TS-430S by Richard L. Measures, AG6K
[Hits: 2021 | Votes: 19 | Rating: 5.38] - TS-440S Improvements
- Various circuit improvements for the TS-440S by Richard L. Measures, AG6K
[Hits: 2275 | Votes: 22 | Rating: 4.91] - TS-830S Manteinance procedures
- Improvements and maintenance procedures for the TS-830S
[Hits: 1933 | Votes: 42 | Rating: 5.85] - TS480 power level mod
- Increase TS 480 PEP power level
[Hits: 81 | Votes: 0 | Rating: 0.00] - Universal QRP Transmitter
- Here's the homebrew Universal QRP transmitter adapted from work by Wes Hayward - W7ZOI. The circuit originally appeared in QRP Classics published in 1980 by the ARRL
[Hits: 652 | Votes: 1 | Rating: 1.00] - WideBand for Yaesu 817 857 897
- This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults.
[Hits: 5058 | Votes: 2 | Rating: 5.50] - Yaesu FT-101 pics
- Images of Yaesu FT 101
[Hits: 1824 | Votes: 32 | Rating: 6.14] - Yaesy 857 and 897 Extending frequency coverage
updated
- How to extend frequency coverage for yeasu FT 857 and 897 in italian by HB9TQF
[Hits: 439 | Votes: 2 | Rating: 10.00] - Yahoo! Groups : TS-850S
- Welcome to TS-850S HF Transceiver Owners Group.
Group designed to discuss the attributes, usage and technical information sharing,
concerning this Classic Transceiver.
Please feel welcome to add your questions, information and comments. We hope you enjoy the Amateur Operators "Attribute of helping ones fellow operator". Valid AmateurCallsigns only, admitted.
[Hits: 636 | Votes: 2 | Rating: 9.50]
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