[Amps] HP436A power meter help needed

[Steve Thompson]

Hsu wrote:
> Hi, Guys,
>    I just purchased an HP436A+8481B sensor, but the sensor without 30db attenuator, one of my friend 
> told me that  8481B must use with  attenuator together, the attenuator supply bias for 8481B sensor.The sensor can not work solely, Is that right?
The 8481B will work fine without the attenuator but the meter reading 
will be wrong and you will have to work out your own calibration. The 
attenuator part is just a plain simple attenuator.

steve