MRP40 Morse Code Decoder & Sender - MRP40 is a powerful and highly-effective ham radio software program that decodes received CW audio that has been fed to a computer’s sound card. The decoded text is displayed on the computer’s monitor. For transmitting CW, the program encodes keystrokes from the computer’s keyboard. Hams use MRP40 to send and read QRQ (high-speed) CW, to help read weak DX signals, and to improve CW contest scores.
MRP40 is compatible with:
Winkeyer USB by K1EL
DigiMaster CW Interface by G4ZLP
SignaLink (recommended)
Rigblaster Advantage
Microham USB Interface II and microHam microKeyer II
Or just do it yourself: Galvanic isolated PC to RIG interface
Performance:
Very good decoding of weak, noisy and fading signals
Almost 100% copy in heavy CW contest conditions and local QRM
Decoding now better than famous MRP37 Morse Decoder (MS-DOS version, no longer for sale!)
Features:
Morse Code Decoding up to 60 WpM
Text- and Graphic Display
High performance software CW filtering
Automatic speed recognition
Automatic Gain Control (AGC)
Automatic tracking of "drifting" signals (via AFC)
Automatic formatting of received text, correcting unspaced words... read more...
Transmitting Morse Code 0.4 to 60 WPM via USB-COM Port, Soundcard and Winkeyer
Beacon transmitting mode
There are 3 ways to transmit:
1. Recommended: Use AFSK (audio frequency-shift) keying by sending CW audio to the transceiver from the computer’s sound card. The rig operates in SSB transmission mode. The signals generated by MRP40 have sine waveform and a smooth envelope, so no annoying key clicks. The rise and decay times of the CW-signals are automatically adjusted to the sending speed, so a minimum bandwidth is occupied, especially for QRS (slow sending). Note: When using AFSK for sending, one can activate the PTT via Com Port by selecting the check box named "Activate PTT pin" in MRP40's menu under "Options - Tx-Settings."
2. Key your transceiver via the RS232 serial Com Port, or key your transceiver via Soundcard output. This requires an interface box between PC and transceiver. You can also build yourself a neat little interface like suggested in QST Magazine issue 02/2007. Click here and study the article.
3. Winkeyer USB
