gps system

DK7ZB Yagi Homebrewing  ^{updated  pop} - Yagis for homemade with a new match-system, for 6m, 4m, 2m, 70cm and Shortwave

Citizen Radio Network - An intiative to use unlicensed radio services as alternative communications system during extreme emergencies and disasters.

Russian Oblasts and prefixes - Russian callsign prefix series: RAA-RZZ, UAA-UIZ, includs Amateur callsign system in Russia

TE Systems - Manuf RF power amplifiers wideband+narrowband for Commercial, Defense, OEM and amatuer markets. Also low-noise rf amplifiers

EH Antenna Systems - Provide information relative to a new antenna concept. AM Broadcast antennas and amateur radio prototypes

Scout Telecomunicazioni - VHF, UHF, CB antennas for marine, mobile, base, remote radio monitoring and control system

Deep Space Network (DSN) - NASA's worldwide antenna network to support the exploration of the solar system.

The most common RTTY systems - Info on ARQ AX25 HELLSCREIBER ITA SPREAD TDM RTTY and many more

LU6DPP Doppler - Doppler informations, building notes in Spanish

Metropolitan Amateur Repeater System - The Metropolitan Amateur Repeater System's KJ6TQ repeater serves Los Angeles Area ham radio operators on 447.820 MHz

Duracell DR36 battery to the FT 817 - The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X 4 amperes. The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector by PY1AHD

Truckcity CB and GPS Store - CB Radio shop, repair service

Beacon-Prediction Wizard Priority listing - Specialized interface for the communications-analysis-prediction engine provided by VOACAP, predicts the expected performance of high frequency, HF, radio systems

HamGrids - Windows application that will allow you to perform calculations with the popular Maidenhead Grid Square system. This grid system is used worldwide by amateur radio operators for many aspects of ham radio.

The Internet Radio Linking Project IRLP - Linking VHF and UHF radios and repeaters around the world using a secure Voice-Over-IP system, with no hackers!

The G0GJV Contest logging system - VHF contest logging program particularly aimed at UK/RSGB contests, although others may find it useful.

HAM-LCT - Freeware logbook program with many features, includes CAT system and database for yaesu Icom and kenwood rtx by hb9cqv

MacGPS Pro - Mapping software which links a Garmin GPS receiver to your Macintosh. Includes Maidenhead grid squares and beam-pointing maps.

Beam Aim - Draws a world map centered on your QTH. Type in a DX station's call sign to get the beam aim azimuth and distance to the station.

Mac Antenna Master - Dipole, Yagi, Vertical, Cubic quad, Log periodic, J-pole, coil, and transmission line design package for the Macintosh

MacDSP - Digital filter for Macintosh computers with a PowerPC processor

Trident TR-4000 - Program for PC control of the Trident TR-4000 / Camnis HSC-150 handheld radio scanner

F1EHN's EME System - Suited for EME operation, traffic procedures in real time

eQSO - Dedicated ham radio internet gateway and server system. It is intended for use by RF gateways and PC users connected to the internet

Firestik Library - Information regarding CB radio and the problems you may encounter during installation and use of your system.