Audio Source; Audio Analyzer; External Transmitter Key Relay; Interrupt Capability - HP 8920A User Manual

Audio Source

Audio Analyzer

External Transmitter Key Relay

Interrupt Capability

−
+12.6 V, 12.6 V Supplies
The Test Set has two audio sources, AFGen 1 and AFGen 2. Either or both of
these sources can be routed to the OPTION INTERFACE connector.
.
Out" on page 574
The Test Set's audio analyzer can be accessed through the OPTION INTERFACE
connector.
See "Audio Input" on page 574
Two pins on the Radio Interface are connected in parallel with the Key Out 1 and
Key Out 2 pins on the front-panel MIC/ACC connector.
The Key Out 1 and Key Out 2 pins allow a radio transmitter to be keyed through a
front-panel display field called Ext TX Key. Refer to
"Key Out 2" on page 574
Two pins on the Radio Interface are designated as Interrupt lines 1 and 2. If
Interrupt 1 or 2 is armed, by selecting Arm on the RADIO INTERFACE screen,
and the corresponding pin is grounded, the word
RADIO INTERFACE screen, and a status register bit is set.
Refer to
"Interrupt Input 1" on page 575
The Radio Interface provides +12.6 V and
powering low-current devices.
Refer to
"-12.6 V" on page 574
Refer to
"Using the Radio Interface (Manual Operation)" on page 463
The Radio Interface (Remote Operation)" on page 469
information about using the Radio Interface.
.
.
and
"Interrupt Input 2" on page 575
−
12.6 V power supplies capable of
, and
"+12.6 V" on page 574
Chapter 16, Radio Interface Screen
Radio Interface Functional Description
See "Audio
"Key Out 1" on page 574
is displayed on the
Tripped
.
and
for more detailed
and
.
"Using
459