digital satellite

Satellite Antenna Tips  ^pop - Tips that may be of help with the most important part of an amateur radio satellite station, the antenna systems.

XE1KK Ramon - Ham radio satellites, XE1KK/B beacon on 50.023 MHz, and some other radio experiments.

SV5BYR Mike - Six meters (6m) operation and satellites and two meters band

IZ7ATH Talino - All about homebrew, antennas, accessories for shack, digital tecniques and more..

IK8XLD Rocco - Satellites, mir, atv and personal information

WB2RXF David - VHF UHF, Satellite and weak signal resource

Ham Radio Community Chapter Priority listing - Ham radio webcam live, solar updates, radio mods, satellite images, audio and video interactive, polls, links, constant events, weather, qrz database, by kd4sai

Quantics W9GR - Digital Signal Processor Kits

US Spectrum Requirements - Amateur and amateur-satellite services, current uses of the amateur service

Digital Signals Sounds - Several files with examples of sounds from digital radio modes on short wave. PSK, RTTY Hellschreiber MFSK FSK Sitor

Digital signal processing - Frequently asked questions on Digital Signal Processing

Soundblaster and Packet - Flexnet and AGW packet engine tested and reviewed by IZ7ATH

Packet Work Group - The PWGN was founded June 14, 1991. Its purpose, among others, is to maintain en renew the network and to stimulate the use of digital communication techniques in amateur radio.

ST2NH Nader - Many satellites homebrew projects from the sudanese amateur radio station ST2NH active on satellites, ISS, HF phone and digital modes.

Electronic DX Press - Founded in 1995, a Club with a worldwide membership, administered from Australia. Shortwave, digital broadcasting, Australian medium-wave and FM, equipment. E-mailed "World Broadcasting Magazine", messaging forums, regular radio programs, extensive resource library.

WACARS  ^pop - The only ACARS software to feature in-line message decoding and aircraft tracking. ACARS Reception and Decoding Software For Windows

Bonito RadioCom - Decode digital and analog signals out of any high quality Transceiver or Receiver, works as a DSP-analyzing system

SkySweeper - Provides most advanced digital signal processing (DSP) functions to be used together with your HF receiver. All signal processing is done in your PC and no extra hardware is needed. HF/VHF rx & tx and analysis software introducing free advanced SkyBoost and MFSK16 modes!

Zakanaka  ^pop - A digital mode decoding and terminal program that uses no terminal unit, terminal node controller, or multimode hardware. It does all its decoding using the sound card inside the computer, and it can interface with a radio using a COM port. Zakanaka is an extremely cost-effective way of operating PSK31 and RTTY

Satsoft - Satellite antenna design and systems engineering software for windows

Nova For Windows  ^pop - Real time tracking of an unlimited number of satellites, fast, accurate and easy to use. Automated FTP keps updates. Also support a great number of interface to control rotors azimuth and elevation plus frequency doppler shift.

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

SkySpy ACARS  ^pop - SkySpy is a software program combining a decoder and a database in order to decode ACARS transmissions, the digital data link between commercial aircraft and ground stations, demod ACARS FAX METEO POCSAG HAM

Next generation beacon - The next generation beacon platform for the OZ7IGY beacons should encompass both the analog and digital mode, i.e. FSK and MGM in a mixed mode configuration

Mode J Desense Filter - This type of filter can be used in a Mode J satellite station (uplink on 2m, downlink on 70cm) to reduce the problem of the uplink signal desensing the receiver