The file appears to be a specialized software bundle associated with RTTY (Radioteletype) contesting , likely containing MMTTY , a popular engine used by amateur radio operators to decode and transmit digital signals. What is OTTMTY?
Since ZIP files can be used to mask malware, especially if they contain executable ( .exe ) or batch ( .bat ) files, you should take these precautions before opening: Are Zip Files Safe to Open? Download: OTTMTY 2.0.zip (83.37 MB)
: Converts radio frequencies into readable text on a computer screen. The file appears to be a specialized software
: Files like XMMT.ocx or custom configurations for logging software like N1MM Logger or WriteLog . likely containing MMTTY
: Can be used as a "TU Type" (Terminal Unit) inside larger contest logging software. Safety & Best Practices