[Elecraft] K3 and KX3 questions for Wayne

[David Orman]

Another question - how long/what gauge is the wire running to your KXPA100?
I wouldn't expect enough drop to pull your voltage down to a point at which
it cuts back power, but you never know. Check your KX3 for the source
voltage when transmitting, that'll tell you if you're dropping below the
threshold for power reduction. For example, 16 gauge copper will drop about
1.2 volts on a 10 foot run @ 15A current draw.

On Sat, May 21, 2016 at 9:58 PM, N6MQL <n6mql at arrl.net> wrote:

> Wayne,
>
> 2 things... First I mentioned to David S in the service department that
> the K3 is no longer transmitting more than 94 watts out on 17 meters
> regardless of the SWR/ impedance. David said that this was a known issue
> due to software and that it was being worked on. However I haven't seen
> anything about this issue so I'm wondering if this is true and if so has
> there been any updates to fix it.
> Secondly, I'm noticing that my KXPA100 can not produce more that 80 watts
> on most bands and 60 on others when I don't supply it with as much as 15v
> DC on a 30 amp supply. This after I did the KX3 / KPXA calibration
> procedure. Why is it that a "mobile" amp that would normally be powered
> with 12v DC from a car battery not be able to provide the power output that
> it is sold as (100 watts)?. Has there been some kind of revisions to the
> first run boards that I should be exchanging them with?
>
> Thank you for your answers  73
>
> Mike
> N6MQL
> ______________________________________________________________
> 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 ormandj at corenode.com
>