[App_rpt-users] TKR-840 issue

[Jon Rorke]

The TKR 7XX/8XX repeaters have only the analog I/P and O/P and TD and Tr 
O/P.

The analog connections can be set for Pre/De emphasis or Flat. But the 
Flat is only over the 300 to 3k range and the audio rolls off below 300 
hz and 3.3 k.

The Date inputs are basically for external PL/DPL or slow speed data 
like 1220 baud and are low pass filtered and limited to 2.5 K deviation. 
So there is no Direct mod input available on the these Kenwood repeaters 
with out going in and bringing out an "Direct mod : that goes from Dc to 
daylight.

So in your config you could feed TX audio into the analog input and PL 
into the TD input.
but since you are suggesting you are doing a simulcast then that may 
cause other problems with Tx audio among the transmitters.

I dont know it is even possible to bring out a direct mod line as all 
the audio is handled via a dsp network in the repeater.
Someone else may correct me on this, but in the short time I have 
researched this I have concluded that these units are not the ideal 
hardware to do this or even the dstar thing.

This is a case where a "dumber repeater" under hardware control might be 
more useful that one under software control.

Jon VA3RQ

On 2/3/2014 9:50 PM, Chris Bunting wrote:
> Was setting up the master site for my simulcast system over the
> weekend, but ran into a roadblock, any help would be appreciated.
>
> When feeding flat Audio into "transmit data" input , the repeater
> maxes out at 2k deviation, no matter how much audio I feed it.
>
> I could use the transmit audio input, but then I can't feed PL among
> other things into it, along with many other reasons not to use tx
> audio.
>
> Anyone experience this with the kenwood highline series repeaters?
>
> What is everyone out there using? I'm ready to auction my 2 kenwood's
> off and buy something else if this can't be overcome. The reason I
> went with the 840 and 830 is it had a 10 meg input for the clock.
>
>
> Thanks,
> Chris Bunting
> Lancaster Networks, LLC | Lancaster Towers, LLC
> 717-459-4321
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