Hi, ARRL Letter on 09/23/2021 titled “IARU Regio 3 Considers Significant Expansion of HF Digital Segments” triggered the dialog among JA WSJT users about the recent activities of IARU bandplan proposal. It is the great movement establishing “time-synchronized transmission mode capacity demands” and we must encourage globally harmonized bandplan implementation as soon as possible. However, I noticed a concern on 40m proposal by the reason that I have experienced a lots of QRM from lengthy, high powered and wide band occupied adjacent SSB operation on 40m at QRG 7074 FT-8 activity and it is not the best allocation for all narrow band data users as FT-8 is the most favorite and popular format today. >From this aspect, I prefer FT-8 to take the most protected segment from SSB operation swapping the allocation of Time Sync Data to 7040~7055kHz, for example 7040kHz. This principle to allocate lower side to “Time Synch Data” is proposed on 80m. I understand the allocation rule to prioritize the current allocation explained in the letter saying “ a global narrowband conversational modes (e.g., PSK) segment between 7040 and 7044 kHz in alignment with existing Region 1 arrangements” but that is not future looking and does not convince for me.
Thus, I wish to hear from the audience of this forum whether it is painful enough for us to move WSJT i.e. FT-8 segment to 7040~7055kHz and I must refrain from proposing to IARU R3 at this moment. Any comments (from Region 1 especially) ? Regards, take de JA5AEA Windows の メール<https://go.microsoft.com/fwlink/?LinkId=550986> から送信
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