It's all about the Software

Had a report that ESSB is not working, specifically audio bandwidth is restricted to 4 kHz.

This may be a DUO setting, will check. Other radios such as Pluto are working OK with bandwidths > 4 kHz.

Is this a bad thing???

( lol sorry..but..)

No its 4khz max on mine..but not being a fm radio dj do not care!!

Ok

Lets try again..this is 3rd time ..giving up after this..

I have just released your posts now I'm awake

New users have their first few posts held, this is an anti-spam measure. Once a small number of posts have been approved, you will no longer have posts held for review. That process is automatic.

Ah..i see

Please then delete all apart from first one..thank you!!

Opps

Done! Though you should be able to delete your own posts.

Simon G4ELI wrote: ↑Mon Aug 10, 2020 6:45 pm Had a report that ESSB is not working, specifically audio bandwidth is restricted to 4 kHz.

This may be a DUO setting, will check. Other radios such as Pluto are working OK with bandwidths > 4 kHz.

The radio can do 6kHz, but its a firmware setting, mainly aimed at AM but it is possible, although Franco likes to stay within the legal limits of the licensing authorities. I'll see what we can do

Paul

NN4F wrote: ↑Tue Sep 15, 2020 6:06 am

Simon G4ELI wrote: ↑Mon Aug 10, 2020 6:45 pm Had a report that ESSB is not working, specifically audio bandwidth is restricted to 4 kHz.

This may be a DUO setting, will check. Other radios such as Pluto are working OK with bandwidths > 4 kHz.

The radio can do 6kHz, but its a firmware setting, mainly aimed at AM but it is possible, although Franco likes to stay within the legal limits of the licensing authorities. I'll see what we can do

Paul

There will be some wideband modes people may wish to use. 6 kHz is fine for SSB/AM but what about narrow FM - I'm using a Q5 Signal transverter with the DUO and in theory may wish to have FM QSOs. Going up to higher bands via transverters and the options increased.

NN4F wrote: ↑Tue Sep 15, 2020 6:06 am

Simon G4ELI wrote: ↑Mon Aug 10, 2020 6:45 pm Had a report that ESSB is not working, specifically audio bandwidth is restricted to 4 kHz.

This may be a DUO setting, will check. Other radios such as Pluto are working OK with bandwidths > 4 kHz.

The radio can do 6kHz, but its a firmware setting, mainly aimed at AM but it is possible, although Franco likes to stay within the legal limits of the licensing authorities. I'll see what we can do

Paul

Thanks for looking into this Simon and Paul.
It certainly would be nice if the Duo's internal menu had wider settings as well. I had the pleasure of meeting Franco at the ARRL 100th Anniversary show (2014). We discussed this topic and I thought an update would soon be in the works. I subsequently made a request or two on the message board but have since given up. Hopefully this gets done!

73, Phil /w2phl