[arm-allstar] Extra hang time on my voter node

Sam Skolfield kj6qfs at gmail.com
Sun Jan 17 18:32:09 EST 2016


Doug,

Cool!  You are a rock star.

P.S. I thoroughly enjoyed your interview. You are a huge inspiration to
myself and others.

On Sun, Jan 17, 2016 at 2:47 PM, Doug Crompton <doug at crompton.com> wrote:

> Sam,
>
>  I am not familiar with the specifics of the RTCM but it sounds like maybe
> you are being hit by the delay problem that will be fixed in the next
> release. The only difference is it is usually a variable delay. You cited a
> fixed delay? The variable delay is on any simpleusb node but is rarely
> noticeable on a simplex node. On a repeater you could often have a delay
> such that your own words are heard when you unkey. It is variable though so
> sometimes it is there and sometimes not. The new code to come out solves
> that problem.
>
>
>
> *73 DougWA3DSPhttp://www.crompton.com/hamradio
> <http://www.crompton.com/hamradio>*
>
>
> ------------------------------
> Date: Sun, 17 Jan 2016 14:32:46 -0800
> From: kj6qfs at gmail.com
> To: arm-allstar at hamvoip.org
> Subject: [arm-allstar] Extra hang time on my voter node
>
>
> Hello all,
> I know this may seem off topic,  but I am running the RPi2 image that
> everyone else is running here, and wanted to ask before I face the "big
> league" on the other group.
>
> I'm noticing a little extra transmitter hang time on my RTCM/Raspberry Pi
> 2 node. Here's the scenario.
>
> I have one RTCM connected as a mixminus client. I have the node set up to
> be a full duplex link (duplex=0, linktolink=yes, zeroed hang time)
>
> I connect to another node of mine (a simpleusb node) and listen to it
> through my RTCM. When someone unkeys on the other end, I hear their squelch
> tail, followed by a 1.3 second or so pause before my RTCM unkeys. This
> tells me there is some extra "stair step" in terms of timing between a node
> unkeying, and my node unkeying. I played with buffer sizes in both the RTCM
> and voter.conf.
>
> Is this perhaps some "flutter-fighting" routine on the other node? Or
> perhaps some goofy obscure setting on my end?
>
> Thanks for reading.
>
>
>
> --
> KJ6QFS
> Sam Skolfield
>
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>
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>



-- 
KJ6QFS
Sam Skolfield
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