[P25nx] Connect to astrotac

Larry D'Anna ldanna at comcast.net
Sat Dec 19 13:13:39 UTC 2020


Thanks Bryan 
Are there software settings in cisco and Atac i can look at to determine if the clocks are set correctly?
Should the Atac be configured for internal vs external clock as I have it now?

Sent from my iPhone

> On Dec 19, 2020, at 2:18 AM, Bryan Fields <Bryan at bryanfields.net> wrote:
> 
> On 12/18/20 7:09 PM, LARRY DANNA wrote:
>> Well I thought all was working ok till I started testing further. When I
>> key up and change talk groups I hear digital hash but no voice return
>> acknowledging the new talk group Ive tried to conduct a qso but the return
>> audio is choppy and seems to lose sync . I hear a few words then silence
>> then a few more words. sometimes I hear the voice prompts other times not.
>> Wondering if the DIU config for the P25nx is correct .  It is connected to
>> the astro tac as a diu as previously advised. the astrotac port is
>> configured for external clock . is that correct?  Or is there  anything
>> else I am missing??
> 
> Do you have the clocks on RX and TX tied together?  The cisco should generate
> clock on rx to the atac, but the atac will not generate tx clock to the cisco.
> 
> Check it with a scope if you're in doubt.
> 
> 73's
> -- 
> Bryan Fields
> 
> 727-409-1194 - Voice
> https://url.emailprotection.link/?bzsoYPay6SkrbhAUDOhzmK_VT27uYJEOWrw4FRFdku73a_igmy3tbFBIOeHWtrRZYLQwKAz5TXmHQsklnqnVsNA~~
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