[arm-allstar] half duplex node linking to a repeater

[Doug Crompton]

Justin,

 That might be your theory but I have done it several times and it does not
cause problems so it is an option that can be used. Obviously you would
apply it  with lower frequency tones and properly adjusted levels. BTW the
new hamvoip DCS filter is brick wall below 300hz and in combination with
our new high pass filter gives an excellent audio bandpass.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


On Thu, Jul 12, 2018 at 6:48 PM, "Justin Reed via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> On 7/12/2018 5:44 PM, "Doug Crompton via arm-allstar" wrote:
>
>> Since most users of the repeater would want to hear the tail and ID a
>> second PL encoder installed in the repeater that follows the input and has
>> its tone on the output would be best. In this case the repeater had two
>> output PL's obviously on different tone frequencies, one follows the input
>> and the other follows the output. Your remote node listens for the input
>> PL
>> and normal repeater users use the output PL.
>>
>>
>> This is a bad idea. Two PL encoders running simultaneously is at minimum
> going to produce intermodulation products in the audible range. At worst,
> it will make decoding unreliable.
>
> If the users want to hear the entire repeater tail, they can run carrier
> squelch. Just have one encoder that follows the receiver RX MUTE/RUS/COS.
>
> Justin
> NV8Q
>
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