[Elecraft] K3 cw rise time

[Larry (K8UT)]

Tony,

 >...8ms, I think, which is unnecessarily long.

Just yesterday, Rob Sherwood gave a Zoom presentation to the local 
SLAARC titled "Transmitter Spectral Purity." He spoke at length about 
the evils of fast rise times and cited the optimal rise time as between 
6 and 8 ms.
The Elecraft K3 line was described as one of the best behaved CW rigs, 
with a rise time of 6ms
Yaesu rigs were denounced for being user-configurable from 1ms to 8ms, 
giving owners an opportunity to litter the bands with shorter times and 
key clicks.
Slightly over 60 minutes long: https://youtu.be/EKCKkV5Nowo

-larry (K8UT)

------ Original Message ------
From: "Tony - KM0O" <ajwanschura at gmail.com>
To: elecraft at mailman.qth.net
Sent: 2021-04-12 14:34:16
Subject: [Elecraft] K3 cw rise time

>Hello,
>
>This subject came up in a recent conversation, and I had to admit that I do
>not know the cw rise time of my K3. It's s/n 444, and does not have the cw
>rise time mod that elecraft sells. The firmware is the current version.
>
>I read somewhere that the rise time was decreased in a previous firmware
>issue, but I don't know if that's true.
>
>It was originally 8ms, I think, which is unnecessarily long.
>
>Can anyone help?
>
>73,
>Tony   KM0O
>
>
>
>
>--
>Sent from: http://elecraft.365791.n2.nabble.com/
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>Message delivered to k8ut at charter.net