rpo 97 trunk

137 MHZ QHF Quadrafilar APT Antenna - This version of the 135mHz quadrafilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey's article Taming the QFH which appeared in the March 1997 RIG magazine.

The Broadband Double-Bazooka - The Broadband Double-Bazooka Antenna — How Broad Is It? 18-1. (Adapted from Technical Correspon- dence, QST, September 1976) The increasing interest in using the coaxial dipole.

Mirrored J-Pole - The mirror-image J-Pole is very easy to construct and requires only two T-Fittings plus a length of copper pipe.

A 5 band log periodic dipole array - Modified version of the Telerana antenna which was orginially featured in the July 1979 issue of QST. The array is suspended within a framework made of fiberglass poles emanating from a central hub with the ends tied together with light weight rope around the perimeter. 10-15-20-30-40 meter band coverage

Homebrew your own inductors  ^pop - Can’t find the inductors you need for an antenna, a tuner or amplifier? Build your own—it’s easy! By Robert H. Johns, W3JIP

Coaxial Traps for multiband antennas - A new perspective on the analysis and design of this popular antenna element. By Karl-Otto Müller, DG1MFT

Cross-Yagi antennas - For two purposes a Cross-Yagi can be useful Satellite work or if you need both vertical and horizontal polarization for terrestrial contacts

6m Half wave vertical - This antenna is very useful for receiving or scanning purposes, but you can use it for transmitting, too. It is 2,94m long and has a pi-configuration (Collins-Filter) for the matching.

Granta Contest Group - HF amplifier - The Granta Contest Group was founded in 1997 by Mark G4AXX, Colin G4CWH, Simon G4EAG, Andy G4KNO. The Group gets it's name from the River Granta (or Cam), which passes through Cambridgeshire and Essex. Using is a 160-10m "desktop kilowatt" linear amplifier using an Eimac 4CX1000A tetrode

Italian Castles Award DCI - With the purpose to let people know about the Castles built on the italian territory and the value which the historical architectural estates hold. Diploma Castelli Italiani by IQ1BP.

VE2EK Ham radio blog - Ham radio and Radio professionnal experience since 1971. Georges VE2EK - ZS1ii - 9Q1EK

Robeson County Amateur Radio Society - RCARS has been formed to be a non-profit corporation dedicated to the safety and welfare of the citizens of Robeson County in times of emergency, disaster or other communications breakdown or overload.

W5BBS Broken Arrow Amateur Radio Club - Founded in 1978 to provide support for local amateur radio operators

CQ Serenade Song - CQ Serenade was composed sometime between 1965 and 1970 by Maurice Durieux, VE2QS.

Better RF company - Pre-recorded voice keyers, Tune controls for Yaesu FT-100, FT-857 and FT-897, Icom IC 706 and IC 718

Millenium QSYer - The Universal QSYer KeyPad works with both ICOM and selected Yaesu radios, extends these capabilities to owners of the Yaesu FT-817, FT-897, FT857, and FT-100. Additiona features for Icom Radios

Genesis Lamp - Sell all types of obstruction lighting. Lighting for your ham radio antenna tower. Genesis Lamp stocks a wide variety of replacement bulbs and specialty replacement light bulbs including: airport lighting and airport light bulbs, incandescent light bulbs and more

FlexNet - FlexNet Group in Darmstadt, Germany, group of people who spend their time in developing software for Amateur Packet-Radio purposes. The main project presently is the PC/FlexNet package written by Gunter Jost, DK7WJ.

Less White Noise - FT-897D Modification - Modification for FT-879D to remove the white noise spreaded far above 3 kHz by Petr OK1FIG

AF Filter for FT-897D - AF Filter modification for the Yaesu FT-897D by Petr OK1FIG

Radio Scanner Guide - A guide to selecting Radio Scanners; divides both new and used radio scanners into 6 categories, based on their specifications and features - e.g. analog trunking scanners, digital trunking scanners, etc; provides specifications on each model

IP-Sound  ^pop - IP-Sound is a Free application for audio exchange client to client over a TCP/IPv4 network (Lan/Internet). The main purpose for the existence of IP-Sound is to provide low quality audio 8-16kHz, with low latency for use together with remote control software for "ham" radio amateur equipment. IP-Sound is developed by SM5VXC.

The KB6IBB Utilities for Palm OS - designed for the ham radio operator or radio scanner hobbyist. It houses four databases that organize your frequency lists. EDACS Trunk - A database that houses the entire EDACS ID table. Conventional - A database that houses lists by channal number. Radio Call Log - A database that allows the user to log calls/notes. Ham Radio Repeaters - A database for ham radio repeaters.

A cheap S Meter - A low-level voltage meter and could even be used for audio purposes.

The MGM Interface - General purpose RTX-PC sound card Interface for MGM (Machine Generated Modulation)