[VHFcontesting] FN55 - Transverter drive control?

[N1BUG]

I have been offered a solution to my amplifier woes. The mast 
problem has been addressed in a temporary fashion to prevent further 
damage while waiting for the weather to improve.

Meanwhile I want to take advantage of the down time to work on other 
aspects of the station that didn't work out so great the way I 
kludged it together last year.

I have a 100W HF transceiver which I need to use as IF for the 
transverter(s) which require(s) +10 dBm. Dedicating a transceiver to 
VHF is not an option. Using the -10 dBm transverter output is not an 
option (even if I could amplify it 20 dB).

High power attenuators are expensive and I don't like to be 
generating 100W on the IF frequency. Has anyone tried a circuit to 
supply fixed negative voltage to a transceiver ALC input for 
transverter drive level setting? If my transceiver wouldn't go all 
the way to +10 dBm, anything under 1 watt would allow use of an 
inexpensive attenuator to finish the job.

The obvious down side is risk of transverter damage should the fixed 
ALC bias fail. Are there other disadvantages? Does anyone have any 
thoughts on protection in case of ALC bias circuit failure?

73,
Paul N1BUG FN55mf