HP 8920A Application Handbook page 91

On the Radio set the Receiver's Controls as follows:
9 Set power to ON.
10 If required, set frequency to the same value as
11 Set squelch to minimum.
12 Set RF Gain to maximum (if equipped).
13 Set coded squelch feature (if equipped) to OFF.
NOTE: Failure to set coded squelch to off will cause the SINAD measurement to be
incorrect.
14 Set the volume control until the AC Level reads 100% of the Receiver's rat-
ed audio output power.
Refer to the audio output specifications for the receiver being tested.
On the Test Set using the knob and data entry keys:
15 Decrease Amplitude until the SINAD meter reads 12 dB.
Sensitivity (12dB SINAD) is displayed as Amplitude as shown.
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Record the frequency as Assigned Freq for use later in the procedure.
SINAD
0 11.97
Assigned
High, Low
Frequency RF Gen Freq
145.285900
MHz
Amplitude
-113.0
dbm
Atten Hold
On/Off
Output Port
RF Out/Dupl
step 4.
RX TEST
AC Level
dB
0.2775
24
Avg
AFGen1 Freq AFGen2 Freq
Filter 1
1.0000 1.0000
50Hz HPF
kHz kHz
AFGen1 To AFGen2 To
Filter 2
FM FM 15kHz HPF
7.70 Off
kHz
Ext Load R
8.00
Ω
FM Receivers
W
To Screen
RF GEN
RF ANL
AF ANL
SCOPE
SPEC ANL
ENCODER
DECODER
RADIO INT
More
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