ctn satellite frequency

Amateur Vertical Antenna Calculator  ^{updated  pop} - This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen.

AMSAT Newsletter - The AMSAT News Service publishes weekly bulletins containing information of interest to amateur satellite operators.

The Radio Amateur Satellite Corporation - AMSAT NA official web site.

US Amateur Radio Frequency Allocations - US Amateur Radio Band Plans by ARRL

Trivalantene - Professional antennas in MF, VHF, UHF and SHF frequency range for military applications, civil-professional market, mobile communications, radioamateurs and antennas for special applications - EMC, radiomonitoring, etc.

SPRE Home Page - The Spartan Packet Radio Experiment (SPRE) is an Amateur Radio (Ham radio) communications experiment. The primary mission was to test satellite tracking using amateur packet radio and Global Positioning System (GPS). SPRE was developed and built by the University of Maryland Amateur Radio Association (UMARA) with assistance from NASA, volunteer engineers, and volunteer software professionals.

Robert's Satellite TV page - Lots of cool stuff about satellite world

Novel filter for sat working - Elimiate QRM when working with satellite antennas

Weather Fax and Weather Satellites  ^pop - Weather Fax for Windows hardware and Software.

SPACEWARN Bulletin - The SPACEWARN bulletin is intended to serve as an international communication mechanism for the rapid distribution of information on satellites and space probes.

NAVSTAR GPS Timing Operations - NAVSTAR GPS Timing Operations, USNO GPS Data & Information Files Global Positioning System Overview Current GPS Constellation, GPS Time Transfer Operations, GPS & Glonass Satellite Visibility

ASTRA - The home of Soci?t? Europ?enne des Satellites.

Eutelsat - European Telecommunications Satellite Organization

ON1CAU Satellite page - A complete guide to satellite web sites.

The Amateur Satellite Observers - Virginia - Nice resource for satellite observations.

Amateur Satellite FAQ - Beginner guide to amateur satellite, with tech info about accessories, antennas, and frequencies.

Amsat australia - AMSAT is a worldwide group of Amateur Radio Operators who share a common interest in building, launching and communicating with each other through non-commercial Amateur Radio satellites.

Introduction to HF propagation - An Introduction to High Frequency Radio Propagation by IPS Radio & Space Service

Frequency Manager for Windows - A Windows program for Storing, Sorting, Searching, & Printing Frequency Lists.

RadioRaft  ^pop - RadioRaft decodes 10 different ARQ modes, 8 different FEC modes, Packet, Baudot, CW... It works with a Hamcomm interface or a radiomodem. RadioRaft offers automatic detection of modes, speeds and shift. It comes with a frequencymeter/baudmeter included, it has signal frequency tracking and a bit by bit display mode. Very easy to use. practical and fast.

Radio Propagation & Diffraction Calculator  ^pop - This is a radio frequency propagation calculator for the transmission path between an RF transmitter and a receiver.

J-Track 3-D - Live satellite tracking by NASA science web site. Requires Java

FTV  ^pop - FTV is an MS-DOS program used to receive images from Weather Satellites and Terrestrial Facsimile Stations, text transmissions from radio telex services, Morse code, as well as Amateur Radio FAX, SSTV, RTTY and CW signals. It can also be used to transmit FAX and SSTV. No external hardware, other than a radio, is required, as all the necessary signal processing is implemented in software.

40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components

Bearcat 210 Scanner Conversion for Weather Satellite - Modification to the Bearcat 210 scanner for reception of 137 Mhz FM is a fairly simple process.