I think two DSB transceivers can communicate via FT8 quite well as long as their carrier frequencies differ by a couple hundred Hz or they apply a couple of hundred Hz of RIT if their transmitted carrier frequencies are identical.
Mike
K5ESS
toggle quoted message
Show quoted text
-----Original Message-----
From:
[email protected] [mailto:
[email protected]] On Behalf Of Hans Summers
Sent: Friday, November 1, 2019 2:36 AM
To:
[email protected]Subject: Re: [qrp-tech] QRPGuys DSB Digital Transceiver
Mike K5ESS: Yes, no problem with receiving a DSB signal, as long as you are
receiving it on an SSB receiver. It is DSB at both ends which is the
problem. As far as I can think of, of all the many modes amateurs send to
each other, DSB is the only one where you can't work someone else who also
has a DSB transceiver.
Bob K5MYJ: If you add a BFO to a general coverage receiver you end up with
effectively a DSB receiver, don't you? In which case don't all the same
DSB-DSB problems apply? I don't see how it can work at all, let alone sound
better than SSB... and regarding modes (this topic is about DSB FT8) I'm
not a big FT8 fan (never tried it, no particular inclination to do so)
but... FT8 is certainly considered a weak signals mode, in the CW/PSK31
class.
Allison KB1GMX: you hit many nails on many heads in a very short space of
time. As usual! All agreed :-)
73 Hans G0UPL
