Motorola Confidential Proprietary
TDMA Timeport™ P8190Test Procedures
44
TX Frequency Error 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 channel
333
122# Set power level to step 2
05# Turn on transmit carrier
The frequency error measured on
the communications analyzer must
be less than ± 0.5 ppm.
Figure 27. TX Test Screen
TX Frequency Error Test
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