free schematics

Receiving antenna for low bands  ^pop - K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter

Shielded-Loop Receiving Antenna - Schematics, mechanical drawings and picture of a Receiving loop antenna by N5ESE - N5FC

Radio Exchange - A free marketplace for hams and radio enthusiasts to list extra receivers, transmitters, parts and associated items to be posted.

Transoceanic resource library - Transoceanic radios, zenith radios, service data, pictures schematics, manuals and owners data.

Freebanders antenna systems - Yagi Quad's and Verticals simple explanations about freebanders antenna systems

XT2C Burkina Faso - DX Pedition in Burkina Faso 2007

73Inc Ham Radio Classifieds - Ham radio classified want ads - ham radio amateur radio classifieds want ads, equipment for sale. personal ads are free

The Junksale - FREE bring & buy website for UK radio amateurs

RFSM-2400 Digital Mode - A recent digital radio protocol. Based on a freeware soundcard-based Radio Frequency Software Modem. Work under standart MIL-STD-188-110A. Maximum speed 2400 bit/second. Signal bandwidth: 0,3-3,3 kHz (standard mode) and 0,3-2,7 kHz (non-standard mode).

QTH locator with GoogleMaps  ^pop - Laurent Haas F6FVY a nice QTH Grid Locator point and click interface using Google Maps.

Russia ATV Amateur TV - Digital Amateur Television web sited include a D-ATV transmitter, D-ATV receiver, D-ATV modulator D-ATV schematics by RA3TTS

Crystal Radio Supply - Offering Crystal Radios, Kits, Parts, and Supplies for the Radio enthusiast. Your source for free powered radios.

Printable SWL QSL log template - Free printable template for QSL log reports. Mainly for shortwave listening. Pdf file by Mike Chambers

CLX Packet Cluster - CLX is a clone of AK1A PacketCluster that runs under the Linux operating system. Freeware packet cluster server software

Linrad - An open source software defined receiver for Linux, Free DSP and Windows

DarwinPSK - DarwinPsk is free to licensed ham radio operators and is a great application for PSK and RTTY communications under MacOSX

Ham Fan - A free small database program for Palm OS that allows you to log ham radio contacts. You can log the call sign, name, date, time and frequency of the contact.

PalmProp - PalmProp is a software for PalmOs dedicated to the forcast of HF radiowave propagation by f5hla

FREQ DB Icom - Program that interfaces with a text file of frequencies plus other data and tunes your ICOM radio. You create this data yourself, and can use almost any data you wish. You use the program by clicking a station in the file to tune your radio to the station or net, or scan the list looking for nets that are on the air.

Radio Control Program ARCP-480 - This free software is an application solely for the use of controlling the Kenwood TS-480. Can be used to edit, save, and export to the TS-480 information such as Memory, Menu, and Auto Mode frequencies.

FRG-Controller by Frans Vink - Free prgram to control Yaesu FRG 100 SW receiver with a PC

SCAN505 - A simple freeware scanner program for the Kachina DSP505. The software does NOT control the radio thru the interface port - it works in conjuction with the Kachina control software using the file interface

EDI to ADIF utility - Free software for converting EDI (Electronic Data Interchange) files to ADIF (Amateur Data Interchange Format). EDI is standard recommended by IARU for sending files in UKV/VHF/SHF contest in first IARU region

Soldering guide - Guide to soldering an desoldering

External Keypad for FT-817 - An external keypad for FT-817(ND), for the serious portable/field-day contester/operator. Homebrew it with the free firmware and public circuit diagram. The circuit is very simple and takes power supply from the ACC port of the radio