hf digital73 links
Contesting : Clubs
- Granta Contest Group - HF amplifier
- The Granta Contest Group was founded in 1997 by Mark G4AXX, Colin G4CWH, Simon G4EAG, Andy G4KNO. The Group gets it's name from the River Granta (or Cam), which passes through Cambridgeshire and Essex.
Using is a 160-10m "desktop kilowatt" linear amplifier using an Eimac 4CX1000A tetrode
[ Hits: 1825 | Votes: 2 | Rating: 10.00 ]
- OH2GI Ham System
- All-mode contesting and logging software system designed primarily for on-line operation of HF digital and CW radio stations through Terminal Node Controllers (TNC)
[ Hits: 1393 | Votes: 3 | Rating: 9.33 ]
- WinLink 2000
- WinLink 2000 employs Stations World-wide to provide an HF/VHF/UHF digital radio Interface into the Internet Email system for the mobile radio operator. Features include binary and graphic file attachments, APRS position reporting and over 340 downloadable WX products. The mode used is Pactor I and Pactor II.
[ Hits: 5087 | Votes: 19 | Rating: 5.68 ]
- Digital Signals
- signals and sounds available on shortwave/vhf radio today along with information on the available equipment needed to understand, analyze or identify these signals
[ Hits: 9207 | Votes: 13 | Rating: 4.92 ]
- Hoka Electronics
- The WWW home page for information about our specialist range of HF and VHF radio digital signals' analysis and decoding equipment.
[ Hits: 1520 | Votes: 3 | Rating: 7.00 ]
- About digital modes
- The digital modes provide a wonderful opportunity for those of us who would like to work on the HF bands but find CW too difficult and SSB phone prohibitive because of interference problems. The digital modes are easy to set up and get operating, require low power and a narrow band.
[ Hits: 7204 | Votes: 7 | Rating: 8.00 ]
- WinDRM - HF Digital Radio Mondiale
- WinDRM is the hottest digital mode on HF today! Nothing else exists where you can transfer data at almost 1KB/s without using proprietary hardware. HF Digital Radio Mondiale allow fast data, pictures, and voice over a 2.5Khz bandwidth
[ Hits: 14205 | Votes: 18 | Rating: 8.39 ]
- JT65 Protocol
- JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.
[ Hits: 1183 | Votes: 3 | Rating: 7.00 ]
- DOMINO - new MFSK mode
- A new MFSK mode with IFK by ZL1BPU and ZL2AFP.It is a simple Amateur Radio mode for keyboard QSOs. domino provides digital chat-mode operation on the HF bands, using the well respected sound card technique. Domino will handle TX/RX offsets and mistuning of 200Hz with ease, and will provide perfect copy of drifting signals up to 200Hz/minute!
[ Hits: 2233 | Votes: 7 | Rating: 6.43 ]
- Ham Radio HF Digital modes
- A complete overview of modern digital HF radio operating modes: PACTOR AMTOR GTOR CLOVER RTTY PSK31 HELLSCHREIBER PACKET MT63 MFSK16 THROB.
[ Hits: 13339 | Votes: 351 | Rating: 8.42 ]
- ST2NH Nader
- Many satellites homebrew projects from the sudanese amateur radio station ST2NH active on satellites, ISS, HF phone and digital modes.
[ Hits: 362 | Votes: 2 | Rating: 10.00 ]
- VHF/UHF 2 meter PSK and digital Group
- Looking for Hams that want to experiment on VHF/UHF PSK/digital modes
[ Hits: 3576 | Votes: 18 | Rating: 6.23 ]
- VHF UHF Microwave Radio Propagation
- Notes on radio propagation in that part of the spectrum (upper VHF to microwave) used by experimenters for high-speed digital transmission
[ Hits: 1304 | Votes: 8 | Rating: 6.38 ]
- ACARS VHF Data
- The first of a series of articles that provide an introduction to the latest ICAO defined digital communication modes, including VDL modes 2, 3 and 4. In this edition we begin with the current ACARS application then bring this up to date with AOA.
[ Hits: 2860 | Votes: 10 | Rating: 5.50 ]
- Hf-vhf-uhf-shf-digital-monitoring-site,wavecom Decoder and tools, winradio and DRM decoders, WD3000 Direction Finding System , radioraft software. PFSL3000 Integrated HF-VHF-UHF signal monitorin
[ Hits: 660 | Votes: 0 | Rating: 0.00 ]
- RDCP/Mac is a communications software package to interface your Macintosh to models of Kantronics TNCs. RDCP/Mac uses the Kantronics HOST mode allowing simultaneous connections on VHF packet and the HF digital modes when using the KAM.
[ Hits: 963 | Votes: 2 | Rating: 9.50 ]
- 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!
[ Hits: 8402 | Votes: 35 | Rating: 6.39 ]
- Linux free multimode HF terminal program. Despite the name, gMFSK can send and receive many digital conversational modes typically used by radio amateurs on HF. Supported modes are:
MFSK (MFSK16 and MFSK8) RTTY THROB (1, 2 and 4 throbs/sec) PSK31 (BPSK and QPSK) PSK63 MT63 Feldhell
[ Hits: 3815 | Votes: 5 | Rating: 9.00 ]
- Hombrewing an HF Transceiver
- This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
[ Hits: 4247 | Votes: 6 | Rating: 8.33 ]
- A 80/40m Direct Conversion HF Receiver with DDS VFO
- Juha (OH2NLT) and Matti (OH7SV) have designed JUMA-RX1, an award winning 80/40m direct conversion HF receiver with highly accurate direct digital synthesis VFO. The receiver is very compact, because it constructed using surface mount components. No coils need to be wound to construct this receiver!
[ Hits: 5776 | Votes: 14 | Rating: 7.79 ]
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