homemade vhf duplexer

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.

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

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.

K8GP Delmarva VHF and Microwave Society - K8GP web site, home of the Grid Pirates Contest Group.

W2SZ/1 - Mount Greylock Expeditionary Force VHF/UHF Multiop Contesting Page

IK2CFR Contest Team - VHF Contest team

CQ Contests Rules and Awards - CQ Contests rules, CQ World Wide 160-meter Contest CQ World Wide WPX Contest CQ World Wide RTTY Contest CQ World Wide RTTY WPX Contest CQ World Wide DX Contest CQ World Wide VHF Contest

LA0FX Contest Logs - Offer various contest logging programs, for scandinavian contests, SPDX, PAXX, OK/OM Contests, IARU VHF Contest, Portugal Day DX contests, HSC contest, various polish and norwegian local contests and other utilities

K5QE VHF and Up Contest Site - VHF + multi-multi contest station from EM31 in East Texas

GM4CXM Ray - Home page of the Amateur Radio station of GM4CXM located near Glasgow in Scotland. Dedicated to VHF and microwave operations

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.

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

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

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