VHF Radios

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.

DSP-10 2-meter DSP transceiver - The DSP-10 is an amateur-radio, software-defined 2-meter transceiver that can be built at home. It operates not only on SSB, FM and CW, but also on four Weak-Signal modes. Features are tailored to operation on VHF, UHF and Microwave frequencies. By W7PUA

Yaesu FT-817 Portable QRP Transceiver - The FT-817 is a small 5W MF/HF/VHF/UHF transceiver with internal batteries. Here is an assortment of technical information K6XX put together about this rig that might interest you.

Motorola Radius M110 modification - Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio

2 Meter FM Channelized Frequencies - It is possible to program almost every repeater and simplex frequency for most areas for the entire 2 meter FM band plan into a radio's memory channels.

Dave's cool projects page - GE 900 Mhz TMX/MVS/MCS To Amateur use

Ham.dmz.ro  ^pop - Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.

KB2LJJ Radio Mods Database  ^pop - The KB2LJJ radio mods database offers approximately 12,000 Radio Mod's, circuits and manuals.

2 Meter FM Channelized Frequencies - It is possible to program almost every repeater and simplex frequency for most areas for the entire 2 meter FM band plan into a radio's memory channels.

430MHz ATV transmitter - ATV transmitter on 430MHz band used with special transmitting tube named 5894 for final stage. Run about 10W average for TV signal and 20W at synchronous peak. Final stage control gird modulation works well for NTSC color video signal and good at audio as well.

6m SSB & CW QRP transceiver  ^updated - Block diagram, schematics pcb layout and pictures of a CW QRP transceiver for 50 Mhz by S57NAN

6m technical docuemnts - A collection of scanned diagrams and designs, documents and modifications for 50 Mhz ham radio equipment

AJ3U - TM-D700 Tips and Tricks - The TM-D700 is an amazing radio AJ3U share some interesting tips

AWA RT85A (RT85) notes - Conversion, programming, and software notes for the AWA RT85A UHF transceiver for 70cm

Batlabs - Motorola two way systems technical documents

Bearcat 210 Scanner Conversion for Weather Satellite - Modification to the Bearcat 210 scanner for reception of 137 Mhz FM is a fairly simple process.

Condor 16 project by ON6MU - Project Condor16 VHF transceiver

converting AWA 25M-1 to 6 metres - conversion of low band VHF AWA 25M-1 carphone onto 6 metres.

converting AWA 25M-22 to 6 metres - conversion of low band VHF AWA 25M-22 carphone onto 6 metres.

converting AWA RT-85 E band to 6 metres - conversion of low band VHF AWA RT-85 transceiver down to 6 metres.

converting Philips FM-828E to 6 metres - conversion of low band VHF Philips FM-828 E band down to 6 metres

converting Philips FM-92 E to 6 metres - conversion of low band VHF Philips FM-92E to 6 metres

Dave's cool projects page - GE 900 Mhz TMX/MVS/MCS To Amateur use

DSP-10 2-meter DSP transceiver - The DSP-10 is an amateur-radio, software-defined 2-meter transceiver that can be built at home. It operates not only on SSB, FM and CW, but also on four Weak-Signal modes. Features are tailored to operation on VHF, UHF and Microwave frequencies. By W7PUA

DVX Project - Digital Voice Transceiver Project This Project began to explore the use of the DVSI AMBE 2020 voice compression chip and also the ADF7021 single chip VHF RF Transceiver from Analog Devices.

FT-726 AUDIO Modifications - Throughput improvement for the FT726R - Tapr PSK modem

HF Rigs db comparison - XLS file with technical specifications about ham radio transceivers

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.

Kenwood TH-215 TH-415 mods - Unfilter LF output from the TH215/415 kenwood portable radio

Kenwood TM-441 Modification - 9600 Baud modification on the Kenwood TM441 by ON6MU

Kenwood TM-G707A Mods - Three mods for the Kenwood TM G707 A

KPC3 to Phoenix - Radio mods for GE Phoenix radios to use in APRS applications

Lil Lulu 50 Mhz Transmitter  ^updated - Whippanny laboratories Li L Lulu 50 to 54 Mhz amateur radio trasnceiver

Motorola Radius M110 modification - Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio

Nokia Mobira Benefon Ericsson & Philips mods - Conversion notes and amateur radio firmware especially for Finnish PMR radios and cellular phones like Nokia, Mobira and Benefon. Also some information for other European brands (Ericsson, Key Radio/Kyodo, Philips) and an extensive link collection.

SV8CS Remote shack system - Remote controlled station from Zante greece

The G8TTI homebrews - Home made transverters blockschematics two metre HB9CV, 144MHz SSB Transceiver

TVI and BCI Filters - TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.

UHF on a VHF Rig - This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.

VHF CW Transmitter - Simple CW transmitter for the two meters band

Yaesu FT-817 Portable QRP Transceiver - The FT-817 is a small 5W MF/HF/VHF/UHF transceiver with internal batteries. Here is an assortment of technical information K6XX put together about this rig that might interest you.