MRP40 Morse Code Decoder & Sender

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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.
... With MRP40 you are number one on the air! ...

There is now available a special SDR Version of MRP40 Morse Decoder 
for more info click here

There are two 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.

To ensure galvanic isolation between computer and transceiver, we recommend using an interface box from SignaLink

Anti Virus Settings:
In case when running the program after pressing the "TRY" button the " program terminates without any error:
Please inside your anti virus software add MRP40 to the List of trusted programs
F-Secure internet security:
If "deep guard is enabled" with "advanced process monitoring" enabled then MRP40 is placed in the "monitored programs  list" and is prevented from running.
This is easily fixed by either disabling "advanced process monitoring" or remove MRP40 from the monitored programs list in F-Secure.

Windows 8 specific instructions:

Just install MRP40, there are no specific actions required at all.
Windows 7 specific instructions:
Locate MRP40 at it's Program folder location  for example "C:\Programs\HamRadioSoftware\MRP40 Morse Decoder V62\MRP40v62.exe"
Right click on the MRP40v62.exe file to access the properties
In the properties / compatibility table one must set: XP Service pack2
Vista-specific instructions:
MRP40 can run under Vista only if launched directly from it's Program folder location, typically "C:\Programs\HamRadioSoftware\MRP40 Morse Decoder V62\MRP40v62.exe"
Right click on the MRP40v61.exe file to access the properties tab and select XP Service pack 2 or 3. This need be done only once; however, each time the program is run, one should right-click the .exe file and select “Run as administrator,” unless the User has administrative privileges.

More Info
| Usage of Tx Macro | Samuel Morse | Morse Code Table | Deutsch | Home |

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Dr. Oliver Welp: Amateur Radio Soundblaster Software Collection
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