6-79
SECTION 6
OPTIONS
Results: Repeater Test
WORKING CHANNEL
Shows the Repeater’s
Receive/Generate RF
Frequencies used for the test.
TX FREQ ERROR
Shows the RF Frequency Error of the Repeater transmitter in kHz.
TX RF POWER
Shows the RF Power of the Repeater transmitter in mW (if less than 1 Watt) or
Watts.
Results: Audio Test (Repeater)
These are all the test results
available for the Audio Test-
Repeater except for the Tx Audio
Response results. Some of these
results are based on the Rated
Output of the Repeater. This is
acquired by injecting a 1 kHz sine
wave via the Data Gen output jack
and raising the level until 3 kHz (1.5 kHz for narrow band) of deviation is transmitted by
the Repeater.
TX DEVIATION @ 15 mVrms
This result is the deviation reading (in kHz) of the Repeater transmitter modulating a
1 kHz sine wave injected into the Repeater’s audio-in path from the COM-120C Data
Gen output baseband jack at 15 mVrms level.
TX MODULATION LIMITING @ 300 Hz
This result is the deviation reading (in kHz) of the Repeater transmitter modulation
with a 300 Hz sine wave injected into the Repeater’s audio-in path from the COM-
120C Data Gen output baseband jack at a level which is 20 dB higher than 60% of
the Repeater’s Rated Output. The result in the right column is the actual level in
mVp which was used to make the deviation measurement.
TX MODULATION LIMITING @ 3 kHz
This result is the deviation reading (in kHz) of the Repeater transmitter modulation
with a 3 kHz sine wave injected into the Repeater’s audio-in path from the COM-
120C Data Gen output baseband jack at a level which is 20 dB higher than 60% of
the Repeater’s Rated Output. The result in the right column is the actual level in
mVp which was used to make the deviation measurement.
0061600
Repeater Rx
[Reptr]
WORKING CHANNEL
TX FREQ ERROR:
TX RF POWER:
Repeater Tx
857.2125
-0.199 kHz
827.4 mW
812.2125
0061600
[Reptr]
TX MOD LIMITING @ 300 Hz:
TX DEVIATION @ 15 m Vrms:
TX MOD LIMITING @ 3 kHz:
TX MOD LIMITING (Burst):
TX AUDIO DISTORTION:
RX AUDIO SESITIVITY:
RX SINAD @ 12dB:
0.73 kHz
4.15 kHz
2.89 kHz
3.68 kHz
1.8%
878.4m Vp_p
-121.8 dBm
110m Vp
110m Vp
110m Vp
0.30 Vrms
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