Hi David
Not really fldigi/FSQ relevant, but I have found the "fastest" large file mover mode in HF SSB bandwidths to be the HamDRM based ones. eg EasyDRF and the DSSTV apps like EasyPAL and QSSTV. They have either a handshake (ARQ) like mechanism for missed blocks or varying FEC/RS encoding.
I have successfully sent 100Kbyte files on a 300km 40m path over I think 5-6 minutes.
I don't know how the codec2 based FreeDATA compares, but would assume it is similar.
The spectrum/amateur rules in VK allow 8kHz bandwidth on HF at reasonable power levels. There is no symbol rate limit as far as I have read.
Cheers Bob VK2YQA
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On 25/11/23 11:47, DavidC KD4E wrote:
Now that the FCC has announced approval of wideband digital modes
on HF - I'm wondering if FSQ may add a version that can take advantage
of it.
This would seem especially valuable in moving images and large files,
but also to speed up all FSQ communications.
WDYT?
David, doc KD4E
