Hello Trip,
Per the 2400-4800-PSK-for-APRS-Packet-Radio.pdf document, the "B"
modem is the one you should use.? Neither version of this modem is
superior as it's just a difference in starting "phase".? Read the
PDF for details. ? Btw, you can run this "2400" modem all they way
up to 3600bps using a standard MIC connector and it should work.?
Warning: I did test this but not using real radios.. I was just
testing two sound cards connected back to back.
As for the 4800 modem, you WILL need a connection to the radio's
discriminator (aka the 9600 pin) for this wider mode.
--David
KI6ZHD
On 03/07/2021 08:48 AM, kt67 wrote:
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I would like to add a 2nd port (on 440Mhz) at a local
mtn. top node--
As I have users that use UZ7HO I would like to be compatible for
them.
I see there are (2) 2400 modes--A and B in UZ7HO. From the
Direwolf
side of things, which would be better?(line of sight links)
Has anyone tested in real world links?
And what about the 3600 bit modem?
Thoughts?
Oh --also-- the radios I am using DO NOT have the 9600 HS ports
so any mode would need to go thru the MIC connector.
(old public safety radios)
Tnx de Trip - KT4WO
