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MSHV Amateur Radio Software

MSHV Supported working modes: MSK JTMS FSK ISCAT JT6M FT8 JT65 PI4



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Link to the MSHV group


In connection with the promotion of the new 77-bit protocol from 01.11.2018 until 30.11.2018 in mode FT8 77-bit protocol, LZ33MM will work as a special call on 7.074 or 14.074 MHz.
Please use MSHV ver. 2.03 or WSJT-X ver. 2.0.0-rc4 or higher versions.

Information about other special calls can be found here.       
Information about diplomas can be found here.


MSHV version 2.03

 Project page for developers and source code can be found here:
 MSHV All Downloads


New in version 2.03:
  • This release is intended for beta testers.
  • First, keep your previous version, make backup copy of previous log file (mshvlog.edim) before installing ver. 2.XX.
  • In mode FT8, the software uses only the new 77-bit messages (the new v2 protocol) to transmit and receive, similar to WSJT-X v2 rc4.
  • Recommended: When working with the v2 protocol in the standard FT8 sub-bands, use audio Tx Freq >= 2000 Hz.
  • Corrected: New formatting TX1 if non-standard calls are used as WSJT-X v2 rc4.
  • Corrected: Small problem with the MSK144 generator.


WSJT-X Software by Joe K1JT
WSJT Software by Joe K1JT
Acknowledgements to K1JT Joe Taylor and WSJT Development Group. The algorithms, source code, look-and-feel of WSJT-X and related programs, and protocol specifications for the modes FSK441, FT8, JT4, JT6M, JT9, JT65, JTMS, QRA64, ISCAT, MSK144, are Copyright © 2001-2017 by one or more of the following authors: Joseph Taylor, K1JT; Bill Somerville, G4WJS; Steven Franke, K9AN; Nico Palermo, IV3NWV; Greg Beam, KI7MT; Michael Black, W9MDB; Edson Pereira, PY2SDR; Philip Karn, KA9Q; and other members of the WSJT Development Group.




LZ2HV 2015