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Date: | Wed, 6 Jun 2012 23:06:29 -0400 |
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Since you have a pi network output circuit with separate tuning and loading
capacitors (I guess), you can match the rig to a wider range of impedances
than a solid-state no-tune transmitter will tolerate. Even if there is a
fair amount of reflected power, proper adjustment of the tuning and loading
capacitors will keep the tubes well matched to the antenna. If there is
only a tuning control and no loading control on that rig, your options are
more limited and you should be more concerned about the amount of measured
reflected power.
Lloyd Rasmussen, Kensington, Maryland
Home: http://lras.home.sprynet.com
Work: http://www.loc.gov/nls
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Michael Ryan
> Sent: Wednesday, June 06, 2012 8:16 AM
> To: [log in to unmask]
> Subject: Re plate dissipation vs output power
>
> Hi Lloyd:
> I don't operate remote anymore nor does the 102 have computer control
> capability. I guess i'm looking at a worst case SWR/reflected power
> sanario with out damaging things. I've got a new set of tubes installed so
> I'm figuring about at least a 70% plate efficency. On tune up I get less
> than 2W reflected power and an SWR of 1.2/1 according to my TW-1.
>
> 73:
> Michael De VO1AX
>
> Sent from my iPhone
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