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SSB Transmitters
165
On the Test Set using the knob and data entry keys:
8. Set AFGen1 Lvl until a measurable RF signal is displayed (typically
>5-10 mV).
Frequency or frequency error is displayed as shown.
Calculate the Measurement:
NOTE: Do not use the displayed AF Freq for the AFGen1 Freq in the calculation.
9. Calculate the frequency or frequency error as follows:
Frequency = TX Frequency − AFGen1 Freq
For example, 28.310885 MHz − 1 kHz = 28.309885 MHz
Frequency Error = TX Freq Error − AFGen1 Freq
For example, −0.119 kHz − 1 kHz = −1.119 kHz
Frequency
Output
Power
TX TEST
TX Freq Error
kHz
kHz
-0.119 3.579
Fre-
quency
Tune Mode
To Screen
TX TEST
AC Level
Auto/Manual
TX Frequency
TX Power
Tune Freq
28.311000
MHz
IF Filter
15 kHz
Input Port
RF in/Ant
AF Anl In
SSB Demod
Filter 1
50Hz HPF
Filter 2
15kHz LPF
De-Emphasis
750 us/Off
Detector
Pk+-Max
Ext TX Key
On/Off
TX Pwr Zero
Zero
AFGen1 Lvl
10.0
mV
AF Freq
RF GEN
RF ANL
AF ANL
SCOPE
SPEC ANL
ENCODER
DECODER
RADIO INT
More
AFGen1 Freq
1.0000
MHz
kHz
V
W
kHz
28.310885
19.5 0.16522
0.2845