Alignment help please

[Ocean cruiser]

Hello,
The Cobra 29 Ltd st TX alignment procedure, step 2 is asking for
TX mode
80% modulation
My audio generators don’t have a % output adjustment. How would I measure this? I have the sencore cb42 and a B&K 1040 that I’m using. Thanks

 

[Dmans]

Ocean cruiser,
Using the photo/formula below and a scope, you can work out the equation and adjust your audio output accordingly to arrive at 80% modulation.

Good luck
73
David

 

[Ocean cruiser]

Ocean cruiser,
Using the photo/formula below and a scope, you can work out the equation and adjust your audio output accordingly to arrive at 80% modulation.
View attachment 33516
Good luck
73
David

73 D,
Thank you very much. I will give it a shot.