[Elecraft] K3 and KX3 questions for Wayne

[Nr4c]

Or just use the Voltage reading displayed on the K3/KX3 front panel. It's quite accurate. 

Sent from my iPhone
...nr4c. bill


> On May 22, 2016, at 10:52 AM, David Orman <ormandj at corenode.com> wrote:
> 
> 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
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