Radio Modifications

Technical reference about Accessories Amplifiers Antennas Cable and Connectors Filters Geography Grounding Gunk Matching Networks ...

Description of the homebrew shortwave multiband SSB transceiver that covers 0 1 30MHz made by ...

Born as a companion transmitter for the Yaesu FRG 7 receiver has become a stand ...

40 meter transmitter by K9GDT

This semi homebrew QRP low power CW transceiver is based on the ARK 40 transceiver ...

This circuit is unique in that it uses a power mosfet as a final rather ...

40 meters band 5 watts transmitter uses a 6L6 with a 6X5 rectifier and a ...

The home made transceiver covers 3 5 to 3 6 MHz and is CW only ...

This is a SSB and CW transceiver for the 80m and 20m bands It produces ...

80 metre ceramic resonator VXO CW Transmitter by VK1PK

The 80m SSB CW transceiver design is based on an already proven concept used in ...

This low power transmitter is developed for ARDF exercising purposes but of course can be ...

This a well performing simple two band transceiver The transceiver design is inspired by the ...

A project for 80M SSB rig including a DSB SSB exciters RX TX and a ...

An easy to build 6 watts SSB transceiver for 14MHz BITX is an easily assembled ...

How to build a complete Single Sideband amateur radio transceiver from scratch Article published on ...

OZ9FW CDG2000 High-end transceiver homebrew project

160 meters transmitter and receiver by G3NGD

by Richard L. Measures, AG6K

Circuit diagrams drake tr7 Schaltbilder Drake Tr7 antenna tuners baluns and home brew power supplies ...

A quick fix for a Yaesu FT-757GXII blank display

Yaesu FT 101 Users Group purpose and scope is to serve as a sort of ...

How to keep from being out of band

Visit the legendary FT 847 FAQ pages You ll find a huge knowledgebase especially for ...

Programming software diagrams radio mods secrets service manuals for Motorola Yaesu Kenwood Icom Alinco A ...

XLS file with technical specifications about ham radio transceivers

Continuos coverage HF Transceiver by I6WJB & I6YPK

This page will describe the construction of a multi band SSB transceiver with all its ...

This article describes the construction of a high performance transmitter and receiver for SSB voice ...

This page describes a homebrew QRP SSB transceiver built by WB9IPA.

External Amplifier Keying from the IC-706 by Bob Wolbert, K6XX

How to replace the lithium battery in this ICOM radio

Modification of internal fan on receive

The ICOM 746 Pro has acquired a history of NEC 1678G IC 151 MMIC and ...

ICOM IC-706MKII out of band Xmit Modification

The purpose of this web page is to try to investigate the ICOM IC 746PRO ...

interface box for Icom rigs that includes a band output port and a CI V ...

Circuit Improvements and Maintenance Procedures for the TS-830S

All about the JRC NRD-525 receiver. Modifications, review, manuals, tipd and tricks

Kazmo s Kustom Kreations a cool accessory aka Outboard Heat Management Project by w4kaz ...

An assortment of Amateur Radio related technical articles written for the JUG the newsletter of ...

Kenwood schematics diagrams in high resolution format includes Kenwood TS 830S TS 820S and TS ...

This page describes some repair tasks related to the Kenwood TS-440 transceiver.

Lot's of info on 950sdx tranceiver by Jeff King ZL4AI/DU7

The Kenwood TS 950S and TS 950SD HF transceivers are fine radios However many if ...

Kenwood TS-830 manual, tips and fixes

Excellent collection of TS 830S documents collected from the web and other sources by DL9AI ...

Contain schematic diagram of many different radio, and some operations instructions.

Mizuho Tsushin Co was a small Japanese manufacturer of QRP radios and kits shortwave receiver ...

This transmitter was first constructed in 1987 and provided the author with his first real ...

Home made 40 meter transceiver project The receiver is a Progressive Receiver with a few ...

Repair services in Brasil manutencao consertos de equipamentos de Radioamador Yaesu Kenwood Delta Collins Drake ...

Designed to handle audio signal interfacing as well as transmit receive switching Reviewed by Steve ...

Sorted by Intermodulation Best receiver first This is a measure of how badly a close ...

Repairing the YAESU Transceiver Model FT-101E.

The following transceivers can be susceptible to damage from a strong RF field or RF ...

Kenwood, Icom, Yaesu, Sony, Uniden Bearcat, Wilson MARK II & IV

This is a collection of emails collected over time which indicate how to put some ...

Sommerkamp FTDX500 - Yaesu FTDX400 restoration

QRP transceiver for 75 meters band by WA7JHZ

Recently at the Ballarat Hamfest the author acquired an old Marine transceiver for just 10 ...

Ten-Tec Orion Transceiver - contester's review by Yuri Blanarovich, K3BU, VE3BMV, VE1BY

This transmitter covers the 160 80 40 and 20 metre bands and provides both SSB ...

An Homebrew 10 Meter transceiver

The goal of this site is to present a working practical tutorial on class E ...

A QRP RTX project by IS0VSU Franco in PDF file

Build a 5 watt, 80 meter QRP CW Transceiver Designed by N1HFX

The 'Super-Sixty' a 5 MHz 60 meters band transmitter & receive converter

Increase TS 480 PEP power level

The FT101ZD DDS VFO project replaces the original VFO in the Yaesu FT101Z ZD rigs ...

Welcome to TS 850S HF Transceiver Owners Group Group designed to discuss the attributes usage ...