[arm-allstar] full duplex RF link

[Patrick Perdue]

Thanks. Yes, I have done some local testing with my full duplex node, 
and that seems to work. May have to do some odd things to prevent 
hearing yourself back through the repeater's main output in real time 
when using WT mode connections, though, but I have ideas for that.


On 5/4/2024 12:45 AM, M Lech via ARM-allstar wrote:
> duplex=0 with linktolink=yes is what he wants. Works perfectly.
>
> 73,
> Matt W6XC
>
> On Fri, May 3, 2024 at 9:12 PM Patrick Perdue via ARM-allstar <
> arm-allstar at hamvoip.org> wrote:
>
>> Just tested, and, yes, duplex=3 does still key the transmitter. So,
>> hmm... guess that won't work.
>>
>>
>> On 5/3/2024 6:21 PM, Patrick Perdue wrote:
>>> Greetings:
>>>
>>>
>>> A local ham has a repeater connected to Allstarlink via an RF link
>>> where internet isn't available at the site, using HamVoIP at a
>>> location with internet. He wants this to be a full duplex link.
>>>
>>> His repeater has a dedicated receiver on one port of the controller.
>>> The output of the repeater is gated. So, right now, the link radio is
>>> receiving on the repeater's main output frequency and transmitting on
>>> the input of the auxiliary receiver. This is configured such that all
>>> audio passes across the RC-850 repeater controller at the same time.
>>>
>>> If he were to add a second radio, dedicating the existing one to RX,
>>> and the new one for TX, how would one configure HamVoIP such that a
>>> loop doesn't happen?
>>>
>>> If duplex=3, then whatever is received by the node won't be
>>> re-transmitted, but does that still key the TX radio? I think it does,
>>> but I'm not entirely sure about that.
>>>
>>> If duplex=0 or 1 with linktolink enabled, that's still going to repeat
>>> the audio, I think, just as duplex=2 would.
>>>
>>> So, in this situation, given that there is only one transmitter but
>>> two receivers on the controller, how do you stop the TX radio from
>>> transmitting when the RX radio hears something, and still make it a
>>> full duplex link happen?
>>>
>>> Or, do you?
>>>
>>>
>>> 73
>>>
>>> N2DYI
>>>
>> _______________________________________________
>>
>> ARM-allstar mailing list
>> ARM-allstar at hamvoip.org
>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>
>> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>>
> _______________________________________________
>
> ARM-allstar mailing list
> ARM-allstar at hamvoip.org
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>
> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org