30-11-2023, 09:04 AM
Hello Scott,
further to Doug's reply, the beauty of using a crude RF probe is that it is DC isolated by design and a relatively high impedance device, reducing the loading on the circuit under test. You only need a relative reading and not anything fancy to do the task.
In the good old days, the RF probe would be connected to the shack multi meter with a moving coil meter which are fantastic for Peak and Dip jobs.
Do not over think it, the task is to just NULL the carrier level in the balanced modulator as best you can. Older SSB transmitters all had what is called carrier leakage and it was and acceptable part of the early days of SSB
Hope it turns out to your satisfaction.
further to Doug's reply, the beauty of using a crude RF probe is that it is DC isolated by design and a relatively high impedance device, reducing the loading on the circuit under test. You only need a relative reading and not anything fancy to do the task.
In the good old days, the RF probe would be connected to the shack multi meter with a moving coil meter which are fantastic for Peak and Dip jobs.
Do not over think it, the task is to just NULL the carrier level in the balanced modulator as best you can. Older SSB transmitters all had what is called carrier leakage and it was and acceptable part of the early days of SSB
Hope it turns out to your satisfaction.
Peter Sumner, vk5pj
You have enemies? Good. That means you've stood up for something, sometime in your life.
- Winston Churchill
You have enemies? Good. That means you've stood up for something, sometime in your life.
- Winston Churchill