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SSB Receivers
184
On the Test Set using the knob and data entry keys:
16. Change the value of RF Gen Freq until the AF Freq meter reads 1 kHz.
On the Radio set the Receiver’s Controls as follows:
17. Set the Receiver’s volume control until the AC Level meter indicates the
Receiver’s rated output power.
Refer to audio output specifications for the Receiver being tested as
required. If unknown, increase the volume control until the AC Level
meter stops increasing (or at maximum).
On the Test Set using the knob and data entry keys:
18. Set Amplitude to −137 dBm.
On the Radio set the Receiver’s Controls as follows:
19. Set the Receiver’s squelch control until the squelch just closes.
On the Test Set using the knob and data entry keys:
20. Increase Amplitude until the Receiver’s squelch just opens.
Minimum Squelch Sensitivity is displayed on the screen as Amplitude as
shown.
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
W
kHz
0.1769
AF Freq
RF Gen Freq
28.310700
MHz
Amplitude
-109.0
dBm
Output Port
RF Out/Dupl
AFGen1 Freq
1.0000
kHz
AFGen1 To
Off
FM
AFGen2 Freq
1.0000
kHz
AFGen2 To
Off
FM
Avg
Squelch Sensi-
tivity
1.11689