Bob,
I have tried many different attenuators.? Everything from homebrew 50db taps to 100watt 40db inline models.? I currently use either the 100watt 40db attenuator:
or a 25 watt 50 DB attenutor:
This is followed by a step attenuator like this (the one that I have is no longer sold):
You will need the adapters and cables as well.
The step attenuators are key to verifying whether the signals are internal or external to the measuring device.? They also allow adjustment for the best resolution of the measurements.
73
Evan
AC9TU
