Re: K4 Latency Time

David Box

Fat fingered CS meant CW
de Dave K5MWR

On February 4, 2020 3:55:53 PM CST, David Box <dobox@...> wrote:
The additional measurements I would be interested in are CS transmit, time from key closure to side tone and rf out.
de Dave K5MWR

On February 4, 2020 2:14:31 PM CST, N6KR <n6kr@...> wrote:

What are you using as the stimulus for these tests? We'd like to reproduce this in our lab.


On Feb 4, 2020, at 12:07 PM, Rob Sherwood <rob@...> wrote:

It takes about 5 minutes to make the measurement. Four minutes to hook up the equipment and 1 minute to measure it on a digital scope.

I have data on 12 rigs at

Download the PDF. I need to add the TD-890S.

Rob, NC0B

On Feb 4, 2020, at 9:58 AM, Rob Sherwood <Rob@...> wrote:

 That will be interesting with current rigs running from 10ms to 180ms. Rob, NC0B

On Feb 4, 2020, at 7:07 AM, Irwin Darack <idarack@...> wrote:

I realize that it’s a little early and Elecraft is most likely still fine tuning their firmware/software....has Elecraft published a expected RX/TX Latency Time for the K4?

Irwin KD3TB
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