gps system

The Kite and Balloon Antenna Site - A complete site for anyone wanting to use kites or balloons for supporting Top Band antenna systems.

Satellite tracking antenna  ^pop - A rugged motorized satellite antenna tracking system for construction by the home handyman

Win-Test contest logging software - Win-Test is a contest logging software compatible with all the operating systems Windows 32 bits without exception. All major international and many national contests are supported. Network TCP/IP capability, radios and CW interfaced, database-aided autocompletion, and much more...

PMR446 Personal Mobile Radio - PMR446 radio information, news, reviews and forum. We also run a PMR446 gateway network using the eQSO system.

Rockingham County Amateur Radio Club - Fellowship for all Amateur Radio Operators of Rockingham County. Home of the N4IV repeater system. Licensing classes, testing, ARES, and Skywarn

CQDX - Who is on air system. Allow registered users to search for on-air operatos.

on4dsq audio file website - MP3 recording files, dx-ing, photo's, dxclusters, railsystem, online logbook

KEPS Equipments for AO40 downlink - Complete receive system, downconverters, dishes, feeds and preamplifiers for AO40 satellite users

Empower RF Systems - We offer a large selection of standard and custom High Power RF and Microwave amplifiers for broadband, general communication, matched band, and personal communication markets.

KEYCOM Characteristic Technologies - Millimeterwave/Microwave transmission lines and components, Cryogenic temperature application transmission cables and systems, Permittivity(Dielectric rate) and Permeabillity measurement systems, Antennas, Radar systems

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.

WaveNode Precision Station Monitoring - The WaveNode WN-1 is a precision, full-featured Amateur Radio Station Monitoring System which now includes Audio Announcing for RF power, SWR, and DC monitoring using HF and UHF remote sensors.

Integrated Tower Systems-ITS - Premier OEM of portable tower systems, Communication-Site-on-Wheels (COWs), heavy-duty fixed foundation telescopic structures commercial and military, worldwide sales and leasing

Adventures in GPS antenna construction - Adventures in amplified GPS antenna construction; an experiment

Handling GPS Antenna - Installation guidelines for static GPS Antennas

The Global Positioning System - The Global Positioning System, a detailed looked at the miracle of modern navigation By Robert A. Nelson

Global Positioning System Primer - Welcome to the Global Positioning System (GPS) What is GPS? What is Navigation? GPS Elements Satellites in Space Ground Control Stations and Receivers, How GPS Works - An Amazing System, Military Uses for GPS

Internet Radio Linking Database - The purpose of this site is to allow users to be able to easily search an area and determine what users or linked systems are available for use there.

NAVTEX - The NAVTEX system is used for the automatic broadcast of localised Maritime Safety Information (MSI) using Radio Telex (also known as Narrow Band Direct Printing, or NBDP).

Dino's Tower Service - Located in North Florida, specializing in tower installations, antenna assembly, and wire antennas. Experience includes a variety of antennas and towers from Rohn 25 up to Rohn 65 and rotating tower systems (KOXG).

M&P Audio - We are a new Amateur radio dealer. We carry products from Alinco, Hustler, Ranger, Antenex, Heil Sound, LDG, Uniden, TE Systems, Coax, and Radio Accessories.

DX ToolBox - DX Toolbox searches the web for you, gathering information on solar and geomagnetic conditions that affect radio propagation. It's ideal for the ham radio operator, shortwave listener, or other radio enthusiast.

SIGINT Systems - SIGINT Systems. Provides the Harvester database system, a professional SIGINT Collection toolkit for radio enthusiasts.

SIGVIEW spectrum analyzer - Complete real time signal analysis software with wide range of powerful FFT spectral analysis tools, statistics functions and comprehensive visualization system.

Attendance Management System - Software that tracks attendance for ham radio clubs and organizations.