[Elecraft] K3 Remote - Latency

Rick Tavan N6XI rtavan at gmail.com
Sun Mar 30 16:38:39 EDT 2014


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 <brian at brianlinn.com> 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
>
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-- 
Rick Tavan N6XI
Truckee, CA


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