Motorola Confidential Proprietary
TDMA T2290/T2297
Test Procedures
40
TX Power Out Test
TX TEST
dB
TX Frequency
834.9900
MHZ
Tx Power
27.49
dBm
FM Deviation
11.58
KHz
1.00000
KHz
AF Freq
Tune Mode
Auto / Manual
Tune Freq
834.990000
MHz
Tx Pwr Zero
Zero
Input Port
RF In / Ant
If Filter
230 KHz
Ext TX Key
On / Off
AF Anl In
FM Demod
Filter 1
50 Hz HPF
Filter 2
15 KHz LPF
De-Emphasis
750 us / Off
Detector
Pk +- Max
AF Gen 1 Freq
1.0000
KHz
AF Gen 1 Lvl
6.00
V
To Screen
RF GEN
RF ANL
AF ANL
SCOPE
SPEC ANL
ENCODER
DECODER
RADIO INT
More
Communications Analyzer Setup:
• Select
TX
button from the Screen
Control panel
• PWR
is
measured in
dBm
• Set
Frequency Measurement
to
auto
or manual
(display will show TX Freq.
Error)
• Set
TX frequency
to
834.990 MHz
• Set
IF filter
to
230 kHz
• Set
AF Filter 1
to
50 Hz
• Set
AF Filter 2
to
15 kHz
• Set
AF gen1
for
1 kHz frequency
at
6V level
(output will go to the
audio
port)
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
25dBm - 29dBm
Power Step 3
21.5dBm - 25.5dBm
Power Step 4
17.5dBm - 21.5dBm
Power Step 5
13.5dBm - 17.5dBm
Power Step 6
9.5dBm - 13.5dBm
Power Step 7
5.3dBm - 9.5dBm
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.
Figure 26. TX Test Screen
TX Power Out Test
Содержание T2290
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