Motorola Confidential Proprietary
TDMA T2290/T2297
Test Procedures
42
TX Maximum Deviation 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# Load synthesizer to channel
333
122#
Set power level to power step
2
05#
Turn on transmit carrier
356#
Select External TX Audio path
10#
Unmute TX Audio path
58#
Turn on compandor
View FM Deviation for reading.
TX Maximum Deviation Pass Speci-
fications:
9.8 kHz - 12 kHz
.
Figure 28. TX Test Screen
TX Maximum Deviation Test
Summary of Contents for T2290
Page 1: ...DIGITAL WIRELESS TELEPHONE Service Manual Level 3 Release 1 TDMA T2290 T2297 ...
Page 26: ... 2000 Motorola Inc TDMA T2290 T2297 Cellular Overview 16 ...
Page 40: ...Motorola Confidential Proprietary TDMA T2290 T2297 TDMA Test Mode NAM Programming 30 ...
Page 68: ...Disassembly TDMA T2290 T2297 Keypad Removal Motorola Confidential Proprietary 58 ...