vhf uhf reciever

2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.

3 Element cubic quad for UHF - Article in spanish with design and descriptio of a 3 elements cubic antenna for UHF

A two band halo for VHF Mobile - 50 and 144 Mhz with a single mobile antenna system

Copper Cactus J-pole VHF antenna - Copper cactus dual-band super J-pole antenna project for 2 meters and 70 cm

VHF UHF antenna for mobile transceivers - A whip antenna for VHF and UHF handhelds or mobile radios

Secrets of a Successful Stealth Operator - N5IW ideas to build your own antenna in a restricted lot, or a stealth antenna. Includes PPT files of HF and VHF stealth antennas.

6 Meters and Up: SSB/CW DX - This is a group for amateur radio operators interested in VHF and UHF SSB and CW, primarily in North America. It's intended for general discussions of V/UHF operation, beacon information, reports of tropo and Es openings and anything else of interest to V/UHF DX enthusiasts

CommsAudit - Commsaudit uk, i/q quadrature , hf receivers, rf, multicoupler, multicouplers, switch matrix, antenna matrices, masthead amplifier,, vhf receiver, uhf,

Amplitec linear amplifiers - HF VHF UHF amplifiers, designed by hams for hams, and morse keys manufacturer

Stealth Telecom - RF engineering solutions, HF VHF antenna systems and radio communications equipment.

Q-MAC - Tactical Radios Manufacturers of HF and VHF Transceivers, NVIS Antennas, Portable and mobile antennas for military and commercial use.

Gateway Electronics - Amateur radio kits, cw keyers, vhf mini receivers, 2 meter preamplifier and more audio related kits, based in St. louis, Mo and San diego, ca USA

Local Area Communications - Communications for short distances can be done in VHF or in HF mode, here is explained the differences.

UHF Reject filter - This filter is a 0.1 dB Tschebychev lowpass with a rejection of 90 dB or better at 430 MHz, and 0.2 dB insertion loss at 72 MHz.

SEP Win - VHF Propagation Analysis Software for the Radio Amateur by K9SE

Voice descrambler - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsabilities deriving from its use. Standard disclaimer applies

GM3WOJ Amplifiers page - HF and VHF amplifiers homebrewed by GM3WOJ

LZ2US Amplifiers - LZ2US offers 3 types amplifiers for the serious VHF/UHF amateur. These amplifiers are very robust and in use by contest groups and EME stations all over the world. Every amplifier is custom made.

VHF linear amplifier pictures - 4CX250B X2 K2RIW style 2m amplifier

PA7TA RF Amplifiers - VHF UHF Amplifiers

KI0LE Amplifiers and Preamps - Picture gallery of vhf uhf amplifiers

50 MHz GS35b Power Amplifier - OZ1DPR six meter power amplifier using the russian VHF triode GS35b

UHF dummy Load - A very simple and effective dummy load can be made from several resistors, a connector, and a small metal plate or piece of PC board stock.

144/430 Duplexer - Schematics for a VHF UHF duplexer

Duplexer for VHF and UHF - Duplexer to use two transceivers and one antenna VHF UHF in spanish