50 mhz oscillator

Quadrafilar Helix Antenna - Quadrafilar Helix antenna for 137 Mhz

43 element Yagi for 2 mt.  ^pop - 43 Element Yagi for 144.200 MHz by VE7BQH

Delta Loop for 50 MHz  ^pop - Delta loop and vertical antenna plans with translation in italian

50 Mhz 6 element yagi - G3PTO antenna drawing plan for a 50Mhz 6 Element Yagi

Lino Esposito Collins Collector - Collins receivers years 1950's-1980's. Genova-Radio/Icb:20 years of work with Collins receivers. Trapani-Radio:Collins rx 651s-1. Collins Advertising 1950's-1960's.

Beacons on 50Mhz - World wide six meters beacon list

144 MHz Beaconlist - List of beacons operating on 2 meters band

DXCluster IOTA spots - Live IOTA spots by the dxsummit dx cluster

The DK5YA Vhfdx Page - The DK5YA Vhfdx Site is dedicated to the serious VHFDXer, serving the Web for more than 5 years for all of those working Aurora, Meteorscatter, FAI, EME, Tropo, TEP etc. on 50 MHZ and up.

Valcom Fibreglass Whip Antennas - Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.

Fractal Antenna Systems - Solution to your OEM needs and can meet your design or vended antenna requirements for antennas from 400MHz to 10 GHz.

ZCG Scalar - Designers and manufacturers of radio Frequency antennas. HF - 3000 MHz TET Emtron HF Yagis, Antennas for Wireless applications, Marine antennas, Land mobile, Mobile antennas.

PC-Controlled 2m Receiver - This VHF receiver(118-173MHz) is fully controlled by PC(LPT port).Receiver presents a complete dual conversion.

Construction tubulaire de l'Artois - Towers manufacturer in France

The Four Metres Web Site - A website dedicated to 70 MHz Band

G4CCH EME 1296Mhz - News of latest radio activity, initial contacts list, recordings of EME signals, information about station, and overview of latest projects.

Amateur Radio Satellite Activity by KH6RH - Logbook of current amateur radio satellite activity, along with 50 mhz activity and satellite antenna projects from Hawaii.

Todd Emslie's TV FM DX page - Australian page featuring 45-108 MHz VHF DX via Es, F2, and TEP propagation.

W6ELProp - Predicts ionospheric (sky-wave) propagation between any two locations on the earth on frequencies between 3 and 30 MHz

Scan505 - It is 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

Frees - Calculates the freespace range of a radio-link. It is useful for radio amateurs, radio engineers and for SETI signal estimations. Calulation of parabolic dish antenna-gain is included.

DXCluster for iPhone - DXCluster let you know in real time who is on the frequencies and where it was listened the last time. It let you create filters to only see which frequency/CQ Zone/ITU Zone and/or Country and after that you can have an alarm corresponding to a specific Zone or a specific country that raise a popup

Duplex 144 432 - A full duplex antenna system for 144 432 Mhz

7 MHz SSB Transceiver  ^pop - Circuit diagram and discription of 7 MHz Ham Radio SSB Transceiver. Transceiver using two MC1496, 4.43 MHz Ladder filter, LM386, LM324 and IRF840 in final.

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