Gary:
I'm thinking of buying the kit for the K2 with the 100 watt PA. I
will mainly be operating on Digital modes such as PSK 31 MFSK 16
RTTY and Hellschreiber. I will be using a Tigertronics SL 1+
interface but was wondering if there are any known problems with the
K2 and any or all of these modes before I buy the Kit and start building.
The KPA100 is a nice 100W amp, BUT it is NOT rated for 100% duty
cycle in digital (continuous-duty carrier) modes. In fact, were it
me, I'd probably not run it at more than about 40W output if I was
using it on a digital mode.
You COULD probably run it at somewhat higher output IF:
1) You remoted the KPA100, as MANY(!) have done, to a separate EC2
enclosure, AND
2) IF you took steps to BLOW A LOT of air across the heatsink.
At higher continuous duty output power levels, I'd want to pass a
LOT of air across both the TOP and the BOTTOM (between the PC board
and the heatsink) of the heatsink.
Cheers,
Tom Hammond
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