Hello,
You may be absolutely correct.
Not that you've mentioned it, I noted (and corrected) a few issues in my post:
1. My instrument is E4418A as opposed to B.
2. The instrument at work is actually E4416A not 4418.
Agilent web site does indeed seem to indicate that E4418A is not compatible with E9320A family of sensors:
- The E4418A is a low-cost, high-performance, single-channel, programmable power meter. It is fully compatible with the 8480 series and the E-series power sensors (except the E9320A family). Depending upon which sensor is used, the E4418A can measure from -70 dBm to +44 dBm at frequencies from 100 kHz to 110 GHz.
Sensor cable however plugs just fine on both ends (instrument and sensor).
One would think if the sensor is indeed incompatible, there should be some sort of hardware pin or at the very least, some sort of sensor incompatibility error message as opposed to entire instrument completely freezing up.
I will do some more research into this.