K3 Remote - Latency

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K3 Remote - Latency

Brian J. Linn
All:

 

Has anyone measured the latency when using the K3/0 to run a remote K3? Is
it good enough for contesting?

 

73' Brian KD0HII

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Re: K3 Remote - Latency

Rick Tavan N6XI
Yes, it can be good enough for contesting. I ran one CW Sprint with it and
it was adequate. I had to run low power because the amp wasn't yet
accessible remotely (It is now.) and I was single-radio. So my 218 Qs is
hard to compare to the 280-310 that I would have expected locally, high
power and SO2R. But most importantly, I didn't feel that latency was much
of an issue. That's surprising because of the rapid turnover at the end of
each QSO in a Sprint.

No, I haven't measured the latency in msec but my ping times are 30-80
msec. More to the point, if I turn up the remote monitor so I hear both
local and remote, then send a V at 30 wpm, I hear the local monitor V
followed by a tail ranging from U to a short T. Most of the time I hear an
A or a full T.

I'm using a full K3 as the Control head, not a K3/0. There shouldn't be any
difference.

More important than perceived latency is quality of the received audio
stream. Mine has pops and crackles. On a good day, it will be one pop of
maybe 50 msec every few minutes and I consider that acceptable. On a bad
day, it's bursts of 3 to 6 such pops in one second, several times a minute,
often obliterating a code element or most of a character each burst and I
consider that unusable for contesting. Others do not experience this and
I'm trying to track it down. I suspect lost UDP packets but haven't been
able to determine even which side is responsible.

Remote operation is a lot of fun when it works. I wish I could get it to
work all the time!

73,

/Rick


On Sun, Mar 30, 2014 at 11:50 AM, Brian Linn <[hidden email]> wrote:

> All:
>
>
>
> Has anyone measured the latency when using the K3/0 to run a remote K3? Is
> it good enough for contesting?
>
>
>
> 73' Brian KD0HII
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>



--
Rick Tavan N6XI
Truckee, CA
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Re: K3 Remote - Latency

KE8G
In reply to this post by Brian J. Linn
Hi Brian,
I can't really comment to the K3/0, but I can tell you when running a K3 as both the remote and control rigs, there is not a problem at all.  

To me, it is just as if I am sitting in front of the remote station, performing all ops from there!

73 de Jim - KE8G

Sent from my iPad

> On Mar 30, 2014, at 1:50 PM, "Brian Linn" <[hidden email]> wrote:
>
> All:
>
>
>
> Has anyone measured the latency when using the K3/0 to run a remote K3? Is
> it good enough for contesting?
>
>
>
> 73' Brian KD0HII
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
______________________________________________________________
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