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GM4XRF Loop antenna plan - A motor driven magnetic loop antenna 1.5 meters square for 3.5-10MHZ by GM4XRF

HC DX Feeding that antenna - Avoid noise, boost performance: make a perfect coax feed line. The perfect feedline, How to install your antenna properly, How to get the best from your coax

NAVAIDs and Real Property Requirements - The Impact of navigation aid systems on Air Force Real Property requirements

Pacific Seafarers Net - The Pacific Seafarer's Net operates from 02:30Z to 04:00Z, 7 days a week, 365 days a year on 14.313MHz and sometimes on 14.300MHz. Between 02:30Z and 03:24Z we perform general traffic handling, and then at 03:25Z the rollcall portion of the Pacific Seafarer's net begins.

ARI Comitato Regionale FVG - Official site of ARI Comitato Regionale Friuli Venezia Giulia

DL1OFC - Amateurfunk Station DL1OFC, Daniel Bartels

AP CB webcam from Finland - Live CB radio operator webcam from finland

TX RX Systems Inc - TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.

DCI Digital Communications - Band pass filters, for radio frequency interference problems.

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.

K2RF Communications Products - K2RF is a manufacturer of radio frequency, audio, and video processing products including repeater link controllers, speech limiters, and RF equipment for the commercial, HAM, and amateur radio consumer.

PolyPhaser - Technical experts in RF path protection

Spectra Engineering - Manufacturer of high performance rack mountable MX800 and MX920 Radio Base Stations and Repeaters. Also supplies 2RU rack mounted 13.8V DC power supplies. Based in Australia.

Tokyo HY-Power  ^pop - RF Aplifiers and accessories. Solid State RF Linear Amplifier Engineering and Antenna Tuners

RadioMirror Tutorials - RadioMirror amateur packet radio multicast software is a powerful tool for distributing information to many hams at once, and can be especially useful during the course of an emergency

FT-817 AFSK Cable - Pc sound card interface for PSK31 MFSK Baudot for the yaesu FT-817

TestParts Sales Company - TestParts.com carries RF Microwave WiFi Coaxial Attenuators Coax Adapters Dummy Loads Waveguide Oscilloscope Probe Leads DMM Manuals RF Switch Relay SurplusSales Bristol Spline Pocket Toner Tubes Digicon Heliax RF Parts Oldaker Test Leads Silver PL-259s

Radio Free Europe - Radio Free Europe / Radio Liberty is an international news and broadcast organization serving Central and Eastern Europe, the Caucasus, Central Asia, Russia, the Middle East and Balkan countries.

SV2AGW AGWUNDigi APRS Digipeater - AGWUIDigi is a program that help you setup your packet station to act as an APRS Digipeater. Its unique feature is that it is written to take advantage of the Windows XP facilities. Among others can act as Cross Port APRS digi if you have more than a RadioPort. The program is the Perfect Companion to AGWTracker.

Band Master - Band Master is a program for Radio Amateurs that downloads DX spots and displays them in different ways, including a graphical band map. It can be used either as a stand alone application or as part of a logging or contesting software via the COM/OLE interface. Rig control, country/province resolution, azimuth/distance calculator and online QRZ lookup are built-in, propagation prediction and geographical mapping are available through integration with HamCap and DX Atlas respectively.

UR5FCM Log - UR5FCM Log a powerful Ham Logbook. It is a working center on radio station on daily realization of radio communications, and also, since version 1.1.61 new features of work in digital aspects of connection

TS780 - TrunkStar780%u2122 is a high-performance, full-featured software package for Uniden® BC780XLT trunking scanner. Data management and operational control over the BC780XLT is provided.

RF and Microwate Power Amplifiers - RF and Microwave Power Amplifier and Transmitter Technologies, amplifierlinearity, efficiency and available RF power devices.

Filters for NDB reception - RF Filters to help with NDB reception problems

Rig to Soundcard Interface by M0UKD - Practival project that contains two isolation transformers, one for AF from the tranciever to the line in on a soundcard, and one from the audio out of the soundcard back to the mic / data input of the radio. Both of which are variable inside the interface via two preset resistors.