[arm-allstar] bounce-back from Kenwood TM-D700A

[David McGough]

Patrick,

Interesting problem. Lately there have been several users having similar
simplex radio strangeness, including one user with a D700.  The symptoms
are:  when PTT is not active, COS behaves normally. Then, anytime PTT is
active, COS is always active, too.

What type of USB fob are you using?

In the very latest pre-release code, I've added a new simpleusb parameter
which will likely resolve the issue you're seeing, by masking it.  Note
that I say mask the problem--the reported cases are all hardware telemetry
problems. This isn't a software issue, as far as I can tell.

Contact me directly, for more details.


73, David KB4FXC




On Thu, 24 Jun 2021, "Patrick Perdue via ARM-allstar" wrote:

> Hi:
> 
> I'm using a Kenwood TM-D700A primarily as a link radio to arbitrary 
> frequencies in my area, at least for now. I plan to install it in 
> another location eventually.
> 
> I'm using duplex=0 and linktolink=yes, and transceiving from the Kenwood 
> remotely from a full duplex radio-less node, such that I don't have to 
> wait for repeater hangtimes to key up and the like.
> 
> This is all working well, except for one thing.
> 
> The TM-D700A, as soon as it stops transmitting and goes back to receive, 
> will quickly trigger COS. So, if I'm on a simplex frequency, or a 
> repeater with a gated PL, this is sort of annoying.
> 
> Also, with linktolink=no, if I try enabling echo in SimpleUSB, it will 
> pingpong to itself all night long until I turn off the radio or pull the 
> cable.
> 
> I've played with positive and negative values for rxondelay, but nothing 
> seems to help there.
> 
> What am I missing?
> 
> Thanks and 73
> 
> KE4DYI
> 
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