aprs diag

HF Aerial Design - A novel approach to aerial evaluation with diagrams and graphs by G3CWI

Townshippers Radio Amateur Club - Quebec Eastern Townships amateur radio club involved in HF contests, VHF-UHF repeaters, VHF-UHF weak signals, APRS, packet, emergency measures.

G7VJA Ken - Amateur radio links to ui-view/aprs sites plus various other bits

WinLink 2000 - WinLink 2000 employs Stations World-wide to provide an HF/VHF/UHF digital radio Interface into the Internet Email system for the mobile radio operator. Features include binary and graphic file attachments, APRS position reporting and over 340 downloadable WX products. The mode used is Pactor I and Pactor II.

Nil-Jon Antennas - Performance Compact Antennas VHF/UHF mobile and base for ham, business, landmobile, police, fire, satellite, APRS, simplex, repeater, TV, FM, scanner or monitoring use.

APRS dot net - APRS inforsmation hosted at Miami Museum of Science

Northern California APRS - Northern california APRS digipeaters and california maps

APRSearch - A search engine containing web sites that are maintained by APRS software authors and other keepers of large and unique APRS related documentation

France APRS - The first French ham site dedied to APRS.

Ohio Aprs - APRS activity in Ohio

North West APRS - Covering Washington Idaho Montana Oregon Alberta and British Columbia

Kansas City APRS - KCAWG web site with lots of informations for local APRS operations by KU0G

KG4YZY / N4SCF Repeater System - Information and a photo album of the KG4YZY 146.760mhz and N4SCF 442.650mhz repeaters in New Port Richey, FL. System is linked 24/7 into the NI4CE regional system. Online streaming & echolink online.

The Sunspot Cycle - Sunspot Numbers, The Butterfly Diagram, the Greenwich sunspot data and sunspot realted infos.

Yaesu VX-8R - APRSWiki - Info about Yaesu VX-8R by APRS Wiki

UI-VIEW  ^pop - UI-VIEW APRS Style Complete software package. High Resolution maps and multiple TNC Support GPS input

MacAPRS - Macintosh automatic position reporting system, developed by Bob Bruninga, WB4APR, to track boats and vehicles using GPS and packet radio. MacAPRS was written by Keith Sproul, WU2Z and Mark Sproul, KB2ICI

PerlAPRS - An application which can monitor both local TNC and remote Internet APRS packets

PolarPlot - Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes.

Galaxy radio mods  ^pop - Galaxy web site updates and additions with modifications, diagrams, and schematics for galaxy radios

Radio-TNC wiring - Radio-TNC wiring diagrams index

APRS Tracker - A near-copy of the PIC-E running the GPS-2E firmware

Radio Beacon Controller - Diagram shows a block diagram of a Radio Beacon

Kenwood Connector Diagrams and Pinouts - Kenwood Ham Equipment Connector Diagrams and Pinouts (1999)

Defpom CB and HAM radio mods  ^{updated  pop} - Circuit diagrams, CB and HAM mods, alignments, data sheets and pinouts, a massive site with over 600 pages of free info