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FM Receivers
93
On the Radio set the Receiver’s Controls as follows:
9 Set power to ON.
10 If required, set frequency to same value as step 4.
11 Set squelch to minimum.
12 Set RF Gain to maximum (if equipped).
13 Set coded squelch feature (if equipped) to OFF.
Refer to "Coded Squelch" on page 47 for information on opening
Receivers with coded squelch.
14 Set the volume control until the AC Level reads 25% of the Receiver’s rated
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 Select AC Level
16 Press the REF SET key.
17 Increase Amplitude until the AC Level meter reads -20.00 dB.
On the Test Set 20 dB Quieting Sensitivity is displayed as Amplitude as
shown.
20 dB Qui-
eting Sensi-
tivity
To Screen
RX TEST
AC Level
Filter 1
50Hz HPF
Filter 2
15kHz HPF
Atten Hold
On/Off
Ext Load R
8.00
Ω
RF GEN
RF ANL
AF ANL
SCOPE
SPEC ANL
ENCODER
DECODER
RADIO INT
More
dB
dB
-20.34
SINAD
RF Gen Freq
145.280000
MHz
Amplitude
0.501
uV
Output Port
RF Out/Dupl
AFGen1 Freq
1.0000
kHz
AFGen1 To
Off
FM
AFGen2 Freq
1.0000
kHz
AFGen2 To
Off
FM
01.36
Avg
24
Ref