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MSHV Amateur Radio Software

MSHV Supported working modes: MSK JTMS FSK ISCAT JT6M FT8/4 JT65 PI4



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Link to the MSHV group
FT4 DX Contest 2020 is scheduled for the weekend of February 29 - March 1, 2020.  
Read here for full details and contest rules.
Read here how to set up MSHV for FT4 DX Contest
Bucuresti Digital Contest 2020 is scheduled for March 16 2020, 18.00-20.59 UTC
Read here for full details and contest rules.
Read here how to set up MSHV for Bucuresti Digital Contest

MSHV version 2.34

 Project page for developers and source code can be found here:
 MSHV All Downloads
New in version 2.34:
  • Added: Restriction for TXing on multi slots in the standard FT8 and FT4 HF sub-bands.
  • Removed: In "Free CQ" option, the restriction for valid call sign; Option renamed "Free Msg", MSHV team hopes this option will not be misused.
  • Changed: Label QRG for modes FT8/4 MSK144 if the label contains only digits, it will be formatted e.g.(002, 022, 222 "requirements of 77-bit protocol" ), otherwise it will be formatted as text e.g.(DX, JA, 4Z, 9K2 ....).
  • Small correction in FT8 decoder for better performance.
  • Corrected: For all modes, sound input filter for better performance.


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 - 2019