[aprssig] D700 owners question

Robert Bruninga bruninga at usna.edu
Sat Oct 16 11:40:24 CDT 2004

I was not aware that you could change the serial port
baud rate.  I thought it was fixed at 9600 baud.

>>> db2fm at jfsattv.de 10/16/04 12:31:36 PM >>>

Am 16.10.2004 um 16:31 schrieb Robert Bruninga:

>>>> kc5qbc at swbell.net 10/16/04 12:10:14 AM >>>
>> I'm looking at the D700 to use for a small emergency group.
>> The expected usage mode is listening to vhf voice on one
>> side while monitoring the packet vhf side with a laptop.
> Is surely the way to go!
> And another real advantage of the  radio is that it
> does work at 9600 baud, AND it has a built-in BBS too,
> so finally after 20 years of people "talking" about trying out
> 9600 baud, now anyone with a kenwood can try it out...
> We should be doing BBS stuff at 9600 baud anyway,
> afterall, this is 2004!
> The only problems you may have heard about are when
> you try to use it on a FULL-DUPLEX 100% constant 9600
> baud data stream (such as the downlink of a 9600 baud
> satellite running the PACSAT protocol).  Then, the 100%
> dutycycle of packets with zero breaks in between will
> get too much data that cannot then also get out of the
> radio's 9600 baud serial port and it will overrrun and choke.
> But as long as you are not tyring to transfer megabytes
> at 9600 baud on a full-duplex channel with 100% key down,
>  it is perfect...
> de WB4APR, Bob

Why not use higher baudrates on the terminal side to avoid the
overrun of the internal buffer? It's at least able to communicate
at 19.2 kBd if not 38.4 kBd IIRC...
(Mine has a prolem at the moment so I can't check and the manual
is out of my reach at the moment ;)

73 de Juergen DB2FM

P.S. If it could use 4800 Bd it would be an ideal TRX for a HamHUD-II
      as the HH2 only uses 4800 Bd (at the moment, but times are 

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