Jay,
The tuning range of the KXAT1 will b limited on 80 meters, so your
antenna configuration will be more critical - I recommend an 80 meter
antenna that is close to resonance.
An end fed antenna suspended from a tree or a hotel balcony is not
likely to do the job on 80 meters simply because it will have to be too
long for practical purposes in those situations (135 feet).
If you are happy with your 40, 30, 20 KX1 and do not have any pressing
needs to add 80 meters, I would not change it.
OTOH, if you are backpacking in the US Southwest areas and want to have
a source of emergency communications (due to propagation conditions), 80
meters may be the only logical choice - just check out the antenna
situation before embarking on your trip.
73,
Don W3FPR
On 3/16/2015 1:03 PM, J wrote:
I'm considering replacing the 30M module in my KX-1 with a 30/80M module,
and had a few questions first:
What chances of contacts with 4 watts on 80M. using a typical end-fed
antenna suspended from a tree or hotel balcony? (Seems like higher bands
are easier at QRP)
My KX-1 has the KXAT-1 ATU. Will the KXAT-1 also attempt a match on 80M?
Has anyone had success with ONE antenna and counterpoise length that will
load properly on 80/40/30/20 using the KX-1/KXAT-1? (I'm thinking a length
which avoids High-Z on these bands)
73, Jay
W6CJ
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