[1000mp] Re: Increasing MK V Transmit Power Beyond 200W

Duncan Clark 1000mp at genesys.ltd.uk
Mon Oct 10 06:38:38 EDT 2005


Historians believe that in newspost 
<6981720.1128702243464.JavaMail.root at elwamui-muscovy.atl.sa.earthlink.net
 > on Fri, 7 Oct 2005, Steve Fraasch <sfraasch at earthlink.net> penned the 
following literary masterpiece:
>First off, since most hams now are running 2.8K and even more of transmit BW, the 3rd order can fall out to 9 KHz from carrier, and 5th order out at
>15 KHz.  Since transceiver and amplifier combinations should maintain IMD at below -30 dBc, that implies roughly 1.5W output power at some of
>these offset frequencies.  On a calibrated S Meter, that means if the signal is S9 + 30 dB over on 15 meters during the Sweepstakes phone
>contest, these products will be heard at a S9 level, and that's for a nominally acceptable system !

That is a neat way to put it.

Duncan
-- 
Duncan Clark (G4ELJ)
wwwe.g4elj.me.uk


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