[Elecraft] K2/10 upgrade question

[picmaster at mail.bg]

Don,

You're absolutely right. The only limitation with such approach will be
that you can't use KAT2 as internal auto-tuner, and you'll have to bring
the KAT100 external tuner to the portable setup (adding more weight and
power consumption).

I'm in a similar cross-road with my K2. I finally decided for myself to
put a KAT2 into my K2, so I'll have a complete low-power station with
integrated tuner for portable operation. When K2 comes back on my desk,
I'll be able to connect it to the external power-amp and tuners (and
the internal tuner will have to be turned-off).

And finally - my understanding is that such decision definitely affects
the way K2 modules are mounted in the 2 enclosures, but there's nothing
that will prevent me to reorganize the modules if/when I change my
operating habits.

I adore my K2 for the fact that the system design is so open and does
not hide, but promotes knowledge about how the transceiver works. If I
want to change/repair something inside, it's done with a pleasure, not
fear that you'll bring it soon to the service center (try this with your
expensive Icom!).

Wish you a happy 2013!

73,
Nikolay LZ1NRD


> Sidney,
> 
> If you are considering going portable with the K2/10, then putting the 
> KPA100 and KAT100 in an EC2 enclosure is the way to go, you can 
> disconnect two cables and take the K2/10 on whatever excursion you desire.
> 
> But, if the K2 is to stay at the home station, put the KPA100 on the top 
> of the base K2.
> 
> In that configuration, if your desire is for easy switching between QRP 
> and QRO operation, put a small (5 to 6 amp) power supply into the base 
> K2 power jack and use a 20+ amp power supply for the KPA100.  If you 
> turn off the power supply to the KPA100, the K2 will still be powered 
> and will revert to a 0.1 to 15 watt range.  With power to the KPA100, 
> the power range will be 1 to 120 watts.
> 
> This action is automatic.  If you use a battery or other source for the 
> base K2 that is not affected by a power outage, in the event of a power 
> failure, the KPA100 will no longer have power, but an ongoing QSO can 
> continue because the base K2 will still have power and you can still 
> operate even though the power level has been reduced.
> 
> Hint: if you include the KAT100 in your setup, power the KAT100 from the 
> same power source as the base K2.  When line power drops, the KAT100 
> (which does not have latching relays) will continue to hold its settings 
> with the lower current power source..
> 
> 73,
> Don W3FPR
> 

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