[App_rpt-users] RTCM to Kenwood TKR-750

[Doug Kingston]

Jeff, thank you.  Your advice was perfect.  We are looking good now.

-Doug-

On Mon, Feb 19, 2018 at 6:42 AM, Jeff DePolo <jd0 at broadsci.com> wrote:

> > I am looking for any guidance on interfacing an RTCM to a
> > TKR-750.  In particular:
> > 1) should I use TA or TD for feeding in the transmit audio (I
> > am using TD)
>
> You should be using the TA input.
>
> TD is the low-speed data input.  It is a wideband input with response down
> to near-DC.  It has no preemphasis.  Even with the softpot cranked all the
> way up you still need several volts of audio to deviate to 5 kHz.  Also, if
> you enable PL on the transmitter, it will disable the TD input (i.e. you
> can't both encode PL AND use the TD input concurrently), so if you have the
> TKR configured to encode PL, you're not going to hear anything coming in
> the
> TD input.
>
> > 2) how should I configure the channel ('duplex'?)
>
> Yes, duplex.
>
> > 3) what about other settings like PTT priority (currently
> > local mic, external ptt, repeat ptt)
>
> Shouldn't matter since you won't have more than one PTT source active
> anyway, you can leave it at default.  Also be sure to disable TOT on the
> external PTT, disable CWID, etc..
>
>                                 --- Jeff WN3A
>
>
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