23cm 2c39

G4CQM Homebrew VHF Yagi antennas  ^pop - Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis

VHF/UHF Long Yagi Workshop  ^pop - Yagi plans and notes for 6m, 2m, 70cm and 23cm

1270Mhz Yagi Antenna - Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.

23cms antenna - The DL6WU 23cm YAGI, The Bassoon 3 band J-Pole antennas, pictures and building plan

Hombrew 23 cm antennas - Homebrewing antennas for 23 cms

Flat plate aerial for 23 cm - This is a simplified design for /P aerials yet offers about a +12dBd gain on 23 cm

23cm double bi-quad - Construction of a 23cm double bi-quad antenna

Valve Data Sheets - This web page has full data sheets for a number of commonly used valves. Most are Eimac and include the 2C39A, 3-500Z, 3-1000Z, 3CX1500A7, 3CPX5000A7, 3CX5000A7, YC156, 3CX15000B7, 4CX250B, 4CX250A, 4CX1000A, 4CX1500B, 4CX10000J etc. These are not avialable on Eimac's web site in full - only brief notes.

VHF UHF European Beacons - MMMonVHF maintains the data for 6m, 2m, 70cm and 23cm bands in collaboration to LA0BY. This site allow display of a beacon map and latest beacon spots.

DF6NA : VHF Audio Examples - Sporadic E, meteor scatter, 70cm 23cm and 10Ghz audio recordings in various modes

GB3LO Lowestoft amateur radio repeaters - GB3LO Live Lowestoft and the East Coasts Amateur Television Repeater on 23cm 1316.00 MHz

M2 Antennas - 80m to 23cm beam antennas, oscar antennas, and antenna rotors

PD0HNI ATV projects Priority listing - Pd0hni 3cm 6cm 13cm 23cm 70cm ATV projects

GB3HV 23cm ATV repeater - The home counties 23cm amateur television repeater, England UK

G0HWC ATV 13cms and 23cms projects - 13cms and 23cms ATV my projects and builds. Also using wifi amps on 13cms, 13cms dish feeds using a Sky dish. GB3CZ

KD5FZX 23 CM GS-15B PA - GS23B / 4CX1600U 1KW Power amplifier for 23cm

N2UO style 23cm Amp - 23 cm amplifier based on the N2UO version

300w 23cm Amplifier - The 23 cm amplifier pictured here delivers more than 300 watts with 10 watts drive.

A 1296MHz Amplifier - Two coupled PAs with each 2 times 2C39 deliver around 400W RF.

ATV Stripline 250mW RF Output Driver Amplifier - A Stripline 250mW RF Output Driver Amplifier For 23cm Microwave ATV

23cm PSK packet RTX - 23cm PSK packet-radio RTX for 1.2Mbit/s user access by Matjaz Vidmar, S53MV

High-speed packet 23cm - 23 cm wide-band transceiver for high-speed data or audio by PE1JPD

23cm dual stage preamp - A modification / combination of the DJ9 BV & I5TDJ 144 MHz preamp designs

23 cm GaAs FET preamplifier - On 23cm the best way to obtain a good RX-sensitivity is to use a GaAs-FET in the front-end, since these devices show very low noise figures.

23cm GI-7B(T) PA - Tubes used to achieve about 500W on 23 cm band