[Elecraft] Higher Power on Transverter bands??

[Geoffrey Mackenzie-Kennedy]

Roger,

A resistive power attenuator adding a db or so loss between the KPA100 and 
transverter would allow you to run a little more power from the KPA100, and 
you would most likely not have to bypass it during receive. An extra db or 
so addded to the transverter's receive IF output (28 MHz) should not affect 
the 432 MHz Rx noise figure by a noticeable amount - assuming some Rx gain 
in the transverter.

The thick film "non-inductive power resistors" available from Farnel are 
satisfactory for use in a power attenuator at 28 MHz.

73,
Geoff
GM4ESD


On June 28, 2011 at 13:29 Z, Roger Dixon wrote:

> I'm setting up a transverter band for 432MHz.
>
> I have a switched dummy load feeding the transverter at around the ten 
> watt
> level.
>
> However, on a two tone test the output on 28MHz is considerably cleaner at
> 13 watts (KPA100 in) than it is at 10 watts.
>
> But - the transverter band set up will not let me go above 12 watts.  Is
> there a work around other than using 28MHz straight and accepting the MHz
> frequency readout is wrong?
>
> Roger - G4BVY