Re: KX2 in FT8 mode - heat? (Barry N1EU)

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

Re: KX2 in FT8 mode - heat? (Barry N1EU)

hhoyt
Hi Barry,

While using the KX2 in just about any digital mode above 5 W or so, we
found the PA temp will reach thermal limit fairly quickly, which is why
Elecraft rates the KX2 at 5 W in digital modes, and why we came up with
an improved cooling solution.  (commercial content) Many owners who wish
to run more than 5 W in digital modes have purchased the Pro Audio
Engineering Kx22 Heatsink, which allows for an average (band and ambient
temp dependent) 200-250% increase in transmit time before thermal
limiting kicks in.

Cheers & 73,

Howie - WA4PSC
www.proaudioeng.com
______________________________________________________________
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]
Reply | Threaded
Open this post in threaded view
|

Re: KX2 in FT8 mode - heat? (Barry N1EU)

Robert Allbright-3
I wonder how stable is the KX2 in digital modes?
My KX3 with the temperature compensation carried out was inadequate when
running wspr at 5 watts output.
However, this was before Elecraft introduced the improved heat sink.
Rob G3RCE

On Nov 24, 2017 13:23, "Howard Hoyt" <[hidden email]> wrote:

> Hi Barry,
>
> While using the KX2 in just about any digital mode above 5 W or so, we
> found the PA temp will reach thermal limit fairly quickly, which is why
> Elecraft rates the KX2 at 5 W in digital modes, and why we came up with an
> improved cooling solution.  (commercial content) Many owners who wish to
> run more than 5 W in digital modes have purchased the Pro Audio Engineering
> Kx22 Heatsink, which allows for an average (band and ambient temp
> dependent) 200-250% increase in transmit time before thermal limiting kicks
> in.
>
> Cheers & 73,
>
> Howie - WA4PSC
> www.proaudioeng.com
> ______________________________________________________________
> 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]
______________________________________________________________
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]