EasyManuals Logo

Motorola APX 4000 Basic Service Manual

Motorola APX 4000
526 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #181 background imageLoading...
Page #181 background image
Performance Checks: Receiver Performance Checks 5-7
5.2.4 RGB Test Mode
To perform the RGB Color Test:
1. Press and release Top Button (Orange button)
2. Press any key; Crosstalk test patterns appears.
3. Press any key; White color test appears.
4. Press any key; Red color horizontal lines appears.
5. Press any key until all 13 red color horizontal lines appears.
6. Press any key; Green color vertical line appears.
7. Press any key until all 13 green color vertical lines appears.
8. Press any key; Black color test appears.
9. Press any key; Blue color test appears.
10. Press any key; Vendor specific display test appears.
11. Press any key; "Test completed" appears.
5.3 Receiver Performance Checks
The following tables outline the performance checks for the receiver.
Table 5-5. Receiver Performance Checks
Test Name System Analyzer Radio Test Set Comments
Reference
Frequency
RF Control: Monitor
Meter: RF Display
Display: Bar Graphs
Freq: Selected radio TX
freq.
TEST MODE CSQ
channel* or
programmed
conventional
channel
PTT to
continuous
(during the
performance
check)
VHF: ±2 ppm (272–348 Hz)
UHF1: ±2 ppm
UHF2: ±2 ppm
700/800 MHz: ±1.5ppm
(1146–1305 Hz)
Rated Audio RF Control: Gen
Output Level: -47 dBm
Freq: Selected radio RX
freq.
Mod: 1 kHz tone @
3kHz dev.
Meter: AC Volts
As above PTT to OFF
(center)
Set volume control to
3.74 Vrms
Distortion As above, except
Meter: Ext Dist.
As above As above Distortion < 3.0%
Sensitivity
(SINAD)
As above, except
Meter: SINAD
As above As above RF input to be < 0.35 µV
Noise Squelch
Threshold
(only radios
with
conventional
system need
to be tested)
Set as for rated audio
check
Out of TEST
MODE; select a
conventional
system
As above Set volume control to
3.74 Vrms.
Set RF level to -130 dBm and
raise until radio unsquelches.
Unsquelch to occur at
< 0.25 µV. Preferred SINAD =
6-8 dB.
* See Table 5-4 on page 1:5-5.

Table of Contents

Other manuals for Motorola APX 4000

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Motorola APX 4000 and is the answer not in the manual?

Motorola APX 4000 Specifications

General IconGeneral
IP RatingIP67
Operating Temperature-30°C to +60°C
GPSOptional
Frequency RangeVHF: 136-174 MHz, UHF: 380-470 MHz, 450-520 MHz
Power OutputVHF: 1-5W; UHF: 1-4W
Digital ProtocolAPCO P25
Dimensions5.2 x 2.4 x 1.5 inches (without battery)

Related product manuals