aprs point

K9FV 40 meters band loop - A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV

FVR Spitfire Array - The Powerpoint presentation below was given by Fred Hopengarten, K1VR, at the 1998 Dayton Hamvention Antenna Forum

AR88 page - This model was introduced in the early 40's to replace or augment the HRO in applications demanding a more onerous duty than basic operational point-to-point communications such as intercepting coded axis radio messages during WWII.

Warrington Radio Club - Warrington Radio Club one of the largest in the UK. Active in contests as M5T APRS g6wrc club call g0wrs.

ACRA Radio club Guadeloupe - CB - radioamateur - BBS - APRS- PACKET Tous les activité radioamateur et CB FG

Enterprise Amateur Radio Society - Club information, weather links and info, scanner and repeater frequencies, APRS links and more.

Ham Radio Portal - If it's Ham, It's here. Webportal covering IRLP, Echolink, EQSO, weather reception, UI-View, APRS, dx cluster and much more.

Elcom Research - Small enough to carry it in your shirt pocket and powerful to fit your needs. It will be your companion for years, thanks to the "FirmwareLiveUpdate" feature. Use it for everyday packet, for APRS, as a Tracker with a GPS or as APRS digi.

Massachusetts Microwave Corporation - Repair and sales of refurbished, point-to-point, digital microwave radios manufactured by Alcatel and Digital Microwave Corporation (DMC).

Massachusetts Microwave Corporation - Provider of point-to-point microwave radio system sales, service, and integration, employing refurbished name brand digital (DS1/E1, DS3/E3) and analog video radios. Specializing in Microwave Associates (M/A-COM) , Digital Microwave Corp. (DMC/Stratex) and Alcatel/Rockwell microwave radios.

SM7DKF ui-view maps - some maps for the UI-View program that SM7DKF is using for APRS

DB0ANF APRS Server - DB0ANF APRS Digi & Server in South Germany

SM5WPW APRS pages. - The Swedish APRS site, including echolink and eqso

VOACAP Quick Guide - A Quick Guide to using VOACAP - Point-to-Point High-Frequency Ionospheric Communications Analysis and Prediction Program

Vatican City Radio - Every day Vatican Radio broadcasts programmes in 40 different languages in five continents, produced by over two hundred journalists located in 61 different countries. Vatican Radio: producing more than 42.000 hours of simultaneous broadcasting covering international news, religious celebrations, in-depth programmes and music. Vatican Radio: from topical subjects to in-depth programmes on moral questions. Vatican Radio: offers to everyone, catholic or not, the Church's point of view.

APRS Point  ^pop - APRSPoint is an implementation of the latest APRS standard with high quality map support. With APRSPoint, you don't have to scan maps any more.

UI-Point 32 - Add-on for UI-View32 that allows you to plot APRS stations on Microsoft MapPoint 2002 maps.

ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss

Digital Modes collection - RTTY SSTV PSK31 MFSK MT63 PACKET APRS and more...

AZMap - Azimuthal maps generator - AZMap is a freeware Windows program for the Windows PC which will generate, display, and print an Azimuthal-Equidistance (A-E) map of the world, centered at any point on the surface of the earth (except very near the poles). The A-E map is also known as a Great Circle map since straight lines from the center point to any other point always fall along a great circle path and represent the shortest distance between the center and that point

LAN-LINK for windows - Smart multi-mode controller software, contest, logging, APRS, and ``PSK31 via Sound card.

Palm Globe - A World Globe for Palm OS - Displays one hemisphere of the earth from any location. Can also display the greyline, and measure the distance between two points on the globe. It does not do a great circle projection.

VOACAP - Point to Point hf ionospheric communications analysis and prediction program

RadioLink Propagation Prediction - Calculate path losses of a point-to-point radio link. Create terrain profiles using digital elevation models.

Using ferrites for interference suppression - This tutorial is meant to shed some light on the use of ferrites, and also presents some comparative frequency domain measurements both to illustrate some of the points, and to give designers an idea of what they might expect in using and specifying a ferrite component