free schematics

A Bird Yagi Antenna - Pictures and detail of contruction of a bird yagi for 10 meters and pictures of the 6 meters version

A dual band wire beam for 17 and 12 meters - This wire beam Moxon antenna offers double duty on 17 and 12 meters with one 50 Ω feed line by Allen Baker, KG4JJH

J Pole antenna for 6 meters - Homebrewed jpole antenna for 50 mhz by IW0BZD, include pictures and schematics, in italian.

The Beverage Antennas - Beverage antenna description for long wave reception, article published on Megahertz magazine in November 1900, in french

Hombrew 23 cm antennas - Homebrewing antennas for 23 cms

My Retro Radios - Collection of old radios for sale

Mike's Radio Page - Welcome to Mike's radio collection, I collect and restore radio sets from the 1930's to the 1960's. I have built up quite a Collection of radios over the years, including Some rare Dutch and German sets.

Antique Radio Schematics and Capacitors for Tube Radios - Specializes in antique radio schematics and capacitors. carries antique radio schematic diagrams and electronic circuit service information for american, canadian and european antique radios.

Antique automobile schematics - Antique automobile radio repair and schematics

Canadian Antique Radios Schematics Diagrams Service - We specialize in canadian antique radio schematics for vintage tube radios made in canada. we carry lots of factory electronic circuit schematic diagrams as well as all rcc / radio college of canada service data 1920's - 70's.

Philco ServiceMan - Schematics and general info like service manuals for philco radios

SCR-Log - Scr-log freeware logging program for mac, windows, linux and dos. designed for school, club, and individual class stations to use during school club roundup.

HamLog.eu - This online database, called HAMLOG, can be used free of charge by any radio amateur worldwide.

Trusted QSL - The mission of the Trusted QSL Group is to keep eQSL an open and free activity for amateur radio operators by promoting the Digital Signature Standard (DSS).

Position-Report APRS maps - APRS-Webserver, that presents aprs-data and maps for free using Google Maps api. The position data is imported from aprs.org, winlink.org and echolink.org. The map data are partially commercial and free. This server is for amateur radio purposes only.

I0SKK - 10 MHz QRPp beacon - Pictures and schematics about QRPp experiments using QRSS on Ham Bands as 10 MHz, 7 MHz,

160 meters by Wikipedia - From Wikipedia, the free encyclopedia, description of the 160 meters band

Achims Free Radio Desaster Priority listing - European free radio on shortwave and mediumwave.

AutoRec - AutoRec is windows freeware time based automatic recorder - player for radio broadcast. Auto Recorder will record or play wav audio files, and execute batch or other executable application programs at scheduled times. The primary use for Auto Recorder is automatic, unattended recording and playback of network or other satellite-delivered radio station program material.

Linrad - Multiplatoform freeware DSP software. Linrad has its origin in software that was developed for 144 MHz EME CW but it is quite general and should be seen more like a kit for designing a receiver that a receiver for some particular usage. It can be used as a CW receiver with a small time delay and a fast waterfall graph. A dsp for conventional receiver to imporve signals readability, a spectrum analyzer.

SlowFeld XP - Free windows program by G3PPT that permits RTX of FeldHell

Mini logbook - A neat free little tool to log your contacts. It automatically looks up previous contacts with recent call. Select text in MRP40 Rx- window. Auto insert that text into MiniLog via double click. By Polar Electric

DXCat - DXCAT is a shareware program dedicated to the Yaesu FT900. It is a CAT system computer control program which enables you to have a total control on your transceiver. by F6GQK

QuickMix - Freeware windows program that allows you to store configuration of your audio mixer in a settings file, and to restore the mixer to that state whenever you want. Useful for digital mode operations where different dsp programs may require different audio in and out settings.

Homebrew HF Amp with 3CX3000F7 - Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC. The amp design was for 160 80 40 and 20 meters