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Test Procedures
TX Power Out Test
TX Power Out Test
Figure 26. TX Test Screen
TX Frequency
MHZ
834.9900
Tx Power
dBm
27.49
Tune Mode
Input Port
RF In / Ant
Auto / Manual
Tune Freq
If Filter
834.990000
230 KHz
MHz
Ext TX Key
Tx Pwr Zero
On / Off
Zero
Test Mode Commands:
11333#
Loads synthesizer to chan
nel 333
12X#
Set power level to step X,
where X is a power level
from 1 to 7.
05#
Turns on transmit carrier
The TX Power Out specification for
each portable power level is as
follows:
Power Step 2
Power Step 3
Power Step 4
Power Step 5
Power Step 6
Power Step 7
Refer to the TX troubleshooting section
for radios not within the pass specifica-
tions.
Note: When taking measurements, re-
member to compensate for cable loss.
40
TX TEST
FM Deviation
dB
11.58
AF Freq
1.00000
AF Anl In
AF Gen 1 Freq
FM Demod
1.0000
KHz
Filter 1
AF Gen 1 Lvl
50 Hz HPF
6.00
Filter 2
V
15 KHz LPF
De-Emphasis
750 us / Off
Detector
Pk +- Max
25dBm - 29dBm
21.5dBm - 25.5dBm
17.5dBm - 21.5dBm
13.5dBm - 17.5dBm
9.5dBm - 13.5dBm
5.3dBm - 9.5dBm
Motorola Confidential Proprietary
Communications Analyzer Setup:
KHz
• Select TX button from the Screen
Control panel
KHz
• PWR is measured in dBm
• Set Frequency Measurement to auto
or manual (display will show TX Freq.
To Screen
Error)
RF GEN
RF ANL
AF ANL
• Set TX frequency to 834.990 MHz
SCOPE
SPEC ANL
• Set IF filter to 230 kHz
ENCODER
DECODER
RADIO INT
• Set AF Filter 1 to 50 Hz
• Set AF Filter 2 to 15 kHz
More
• Set AF gen1 for 1 kHz frequency at
6V level (output will go to the audio
port)
TDMA T2290/T2297
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