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Voice keyer Interface by G4AXX - This voice-keyer-interface connects between a Yaesu FT1000MP and a PC's sound card & COM port. It can be used as a voice-keyer with Contest Voice Blaster and as a voice-keyer and CW-keyer with Writelog.

QSL statistics - Online database of QSL card exchange status. Lookup if stations confirm QSOs and share your stats by uploading your ADIF log.

G3NGD QSL Collection - QSL cards from early 70's from G3NGD

SP-QSL Gallery Online - The SP-QSL-Gallery is a Polish amateur radio QSL collection It currently contains about 6500 cards, split into 14 unique areas for easy browsing.

Les Nouvelles DX - Galerie de QSL  ^updated - QSL gallery mostly for the deleted countries, old prefix, Antarctic stations and also for the very old cards prior 1945

IZ5BRW Riccardo - Weblog from Florence Italy, with personal infos and updates on his ham radio activity

Highfields Amateur Radio Club - Amateur radio club from Cardiff Wales UK

VU2UKR HAM Radio Station - HAM Radio India Yagi Beam CW QRP SSB QUAD DX circuits sound card Transceiver Morse HF VHF Antenna Satellites Amateur Club Station Operators Licence Exam ASOC Guide Digital Mode Equipment Transmitter Experiments Project schematics Beacon dx HAMSAT VUSAT Satellite Emergency communication Information Homebrew QRP Kits

PSK31 Fundamentals and Setup - Background: The PSK31 philosophy, The QPSK mode, Varicode, Sound Card DSP Setup and Operating Tips

Making the Most of your PSK31 Signal - Adjusting audio output of your soundcard to obtain a perfect PSK signal from your transmission. A project to help you tuning your PSK31 emission.

PSK31 Elmer page and PSK Signal Quality - Generating clean PSK signals and helping others to correctly tune their souncard output, as well as giving proper RSQ reports by identifying signal quality by N1NKM.

Packet with Soundcard - Sound card packet by NM5RM. This amateur radio web site explains how to use the AGWPE utility program to send and receive packet using the sound card or sound chip of your PC instead of a traditional TNC or radio modem

Icom ACC1 interface - Need to interface both a TNC and the computer soundcard? This is a ICOM 756PRO ACC1 audio/keying/FSK interface by WA0SXV

FT1000MP to Sound Blaster - Yaesu FT 1000 MP to sound blaster card interface by Mark Marsden G4AXX

Getting Started with FT-817 in Digital Modes - Getting Started with Digital Sound Card Modes with the Yaesu FT-817 Transceiver by Clint Hurd KK7UQ

LZ3HI QSL printing - Printing QSL cards, postcards, advertising materials, bussines cards, calendars, stickers, t-shirts, gold printed advertisements, rubberstamps, and QSL lables from Bulgaria

International SWL Registry - Obtain a unique SWL Designator to use on your signal reports and QSL cards. Official certificates also issued.

Aldo - Morse tutor - A morse tutor that drives any Linux supported soundcard.

WSCGen - Signal generator using the PC soundcard to output continuous tone, CW, SSTV, AO-40 telemetry, and PSK31 test signals with variable AWGN. The program will also output to a RIFF .wav file by AE4JY

Multi-Instrument - Contains a PC sound card based signal generator. It can generate functions, multitones, arbitrary waveforms, burst tones, MLS, DTMF, musical scales, white noise and pink noise, and frequency/amplitude sweep. Fully functional free trial downloadable.

MF TeleType - MF TeleType is a program for amateur radio digital communication via sound card, ham radio chat program for extra reliable text transmissions over long distance

ICOM SoundBlaster Interface - Interfacing ICOM radios with PC soundcard by W8WWV

Big Dummy's Data Interface - Simple soundcard data interface for the various data modes

Sound Card to Radio Interfacing - Sound card Hamming, PSK31 and other digital modes, CQ amateur radio article by K5ABT

Multimeter with Sound Blaster - Sound card based multimeter