We cannot expect to expand precious spectrum regardless of other users without due consideration. JT65A uses 2.7Hz JT65B uses 5.4Hz and JT65C uses a 10.8Hz inter-tone shift. The difference between the three sub modes is the frequency shift between the tones. JT65 has three sub modes: (T65A, JT65B and JT65C. JT65 is an MFSK mode that uses 65 tones of differing frequency. Putting FT8 above JT9 lands it in a popular and heavily used RTTY sub-band and increasing activity would only expand further up while leaving the JT65 sub-band under utilized. PSK, RTTY, MFSK, JT65, JT9, FT8, FT4 & JS8CALL Frequencies JT65, JT9, FT8, FT4 and JS8CALL frequencies are defined by the mode's developers for Region 1 PSK, RTTY and MFSK are not critical but usually stations are heard at these frequencies. JT65 is another mode released from the K1JT stable. Putting FT8 in a 2 kHz sub-band below JT65 on many bands was deliberate and included the assumption that many JT65 users looking for faster QSOs with strong signals would move to FT8, this naturally allows FT8 usage to expand upwards as JT65 usage reduces. If using 14.073, be sure to avoid interference with the JT65 or FT8 area. A reminder, QRP is a power reference, not a mode. We do not wish to cause interference to each other. PSK31 ops are on 14.070 and the QRP club uses 14.060 as their calling frequency. Just because you think they are wrong does not make your choices correct, nor can I find any contribution from yourself on the discussion threads about the proposed allocations for FT8 than ran for a couple of weeks before the WSJT-X RC1 beta release on the wsjt-devel SourceForge list or wsjtgroup Yahoo Groups support list. Note 1: For 20 meter ops, the FHC calling frequency is 14.063 and UP to 14.069. The frequencies proposed for the up coming v1.8.0 release (now in beta test) have been decided upon after consultation, review of other mode usage and band plans. The message to be transmitted is passed to the JTEncode method corresponding to the desired mode, along with a pointer to an array which holds the returned channel symbols. JT65, JT9, JT4, FT8, WSPR, and FSQ modes are modulated in same way: phase-continuous multiple-frequency shift keying (MFSK). It was posted to a non-official web site which we do not control. The example sketch itself is fairly straightforward. Hi Bob, the information you posted was from a pre-release alpha test version of WSJT-X only available to those who build WSJT-X from sources and came with a strict reminder that those doing so should follow the wsjt-devel traffic and and change history for updates.