David,
Yes, I did not consider that a plate modulated AM transmitter will
produce AM with a carrier power equal to the CW power. That is 120
watts 100% modulated on AM. That is 120 watts of carrier and 60 watts
in each sideband. Effective communications power is 60 watts compared
to 100 watts SSB power with the K3 and similar 100 watt class transceivers.
A transmitter like the K3 which develops AM at a low level stage and
amplifies it must drop the carrier power back to about 50% of the full
power to prevent excessive heat dissipation while remaining linear.
Sorry, but I am not a fan of "Ancient Modulation". Talk power with SSB
is so much greater than AM. Just my not so humble opinion.
73,
Don W3FPR
On 10/23/2014 8:57 PM, david Moes wrote:
the TX1 with High level plate modulation it will do way more on AM
than the K3 I get about 110W carrier. the TX1 didn't do SSB without
additional hardware which I have but its not yet restored. the real
point is the vintage fun factor of restoring and getting on the air
with 110lbs of iron.
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