Manual - 8500A Series Peak Power Meter - Giga-tronics

Series 8500A Peak Power Meters
4 Detector Input These channel A and B inputs (single input in the 8501A) will be hole cover plates
unless Option 03 (Rear Panel Connection) has been ordered. With Option 03, the
Detector Input and Calibrator will be relocated from the front to the rear panel. The
Calibrator connection will be above the Serial/Code number label on the right side
of the rear panel.
5 GPIB Interface This is the interface connection for controlling the instrument through the GPIB
(IEEE bus).
6 FREQ Input This is the voltage-proportional-to-frequency (VpropF) input connection that
receives the Frequency Reference or V/GHz (V α F) output signal from an external
signal generator. This signal provides frequency information to the PPM for detector
frequency response correction when required.
7 TRIG Input -
TTL
This connection interfaces a TTL signal source to provide an external trigger when
this mode of operation is selected.
8 SYNC Output This output connection provides access to the sample pulse for synchronizing the
PPM to an external counter.
9 RF Blanking
Output - TTL
This output interfaces a blanking TTL signal to turn off the external RF power
signal source when you want to autozero or calibrate the detectors. It is at a TTL
high level during execution of these functions.
10 Reset This control resets the PPM to its initial power-on condition without having to turn
off the instrument.
11 Volume Control This control adjusts the volume level of the audio tones generated by the PPM. The
audio can be turned off with this control.
2-6 Manual No. 20790, Rev C, November 1998
Superceded by Revision D, March 2009