User's Manual

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b) Connection method
c) The Conform of Rx sensitivity
1) Adjust SSG to channel frequency.
2) Adjust modulation frequency , 1Khz to modulation degree, 3kHz.
3) After adjusting the frequency of SSG to channel frequency, RF level
sets to –47dBm.
d) The Conform of Squelch sensitivity
1) Set the standard channel.
2) In squelch mode, SQ volume VR2 must be turned counterclockwise.
3) After adjusting SSG to channel frequency, the RF level of SSG is set
On SINAD 10~6

.
4-5. Receiver Test
a) Rx sensitivity test
SSG should be adjusted to 12

of SINAD point needle seeing wave of
Oscilloscope as SSG sets in 1kHz frequency deviation.
At this time , normal RF level is –110 ~ -107dBm.
b) Audio Distortion Test
1) SSG should be adjusted like way of point “a)” and RF level sets to
-47 dBm.
2) Adjust to 0.7Vrms(4 load) seeing Audio wave.
3) Read the needle of Distortion Meter (Normal condition would be less
Then 5% distortion)
c) Squelch Test
After RF level of SSG should be set to the least level, RF level should be
Gradually increased until speaker makes audio sound.
At this point, check RF level (Check if the SINAD is 10~6

).
SSG EUT
4 Load
Oscilloscope
AV VTVM
Distortion Meter
SINAD Meter
Power Supply