Probe Connection
To make measurements, you must use your Model 8718B with a compatible probe. Connect the cable of the probe to the probe connector located at the top of the unit.
If you use a fiber optic link, the probe connects to a fiber optic transmitter. A fiber optic cable connects the transmitter to the rectangular fiber optic jack on the left side of the meter.
Audio Alarm
Your Model 8718B is equipped with an audible alarm that emits sound through a tiny hole on the bottom of the meter. The alarm sounds whenever the field strength exceeds the measurement range of the probe (over ranges).
You can also set the meter to sound its alarm at a specific level and/or turn on a
Probe Test Sources
Your Model 8718B is equipped with two RF sources for testing your probes. The Test Source key will turn these sources on. They will stay on for approximately 20 seconds.
A microwave (waveguide) window on the right side of the probe is used for testing high frequency probes.
A contact on the right side of the meter is used for testing low frequency probes. Most probes have three test points on the head of the probe.
4 | Operating the Meter |