On 26 Mar 99 at 14:57, Karl F. Larsen wrote:
> Pactor is hard on your transmitter.
Pactor-II is not as hard. It "has envelope", so you are forced to
run amplifiers with emphasis on linearity, and average power is about
half the peak power.
> I use a TS-50 which is a very small radio and the cooling fans are
> on all the time when doing pactor. So far so good. No blown
> transistors. But I run the rig at 50 watts instead of the 100 watts
> max.
Usually I run LESS THAN 25 watts on 40, 30 and 20 meters. The
demodulators-decoders on the PTC-II are real gems. Also, PSK has no
threshold and gives useful output at C/N ratios that are useless for
FSK. Heat is no longer a problem, and thruput is far better.
73 de Jose, CO2JA
---
Ing. Jose A. Amador | Telf: (537) 20-7814
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