5-10
Performance Checks
: Transmitter Performance Checks
5.4
Transmitter Performance Checks
The following tables outline the performance checks for the transmitter.
Table 5-8. Transmitter Performance Checks – APX 2000/ APX 4000 (Two Knobs)
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)
RF Power
As above
As above
As above
VHF
: 1–5 Watt
UHF1
: 1–5 Watt
UHF2
: 1–5 Watt
700
: 1–2.7 Watt
800
: 1–3 Watt
Voice
Modulation
(external)
As above. Set fixed 1 kHz
audio level to 400 mV.
As above
As above
Deviation:
(12.5 kHz)
≥
2.1 kHz, but
≤
2.5 kHz
(25 kHz)
≥
4.1 kHz, but
≤
5.0 kHz
Voice
Modulation
(internal)
RF Control:
Monitor
Meter:
RF Display
Display:
Bar Graphs
Freq:
Selected radio TX
freq.
As above
Remove
modulation input.
PTT
to OFF
(center)
Press
PTT
button on radio.
Say “four” loudly into the
radio mic. Measure
deviation:
(12.5 kHz)
≥
2.1 kHz but
≤
2.5 kHz
(25 kHz)
≥
4.1 kHz but
≤
5.0 kHz
PL Modulation
(radios with
conventional,
clear mode,
coded squelch
operation only)
As above
Conventional
coded squelch
personality (clear
mode operation)
or TPL channel
(test mode*)
PTT
to continuous
(during the
performance
check)
Deviation:
(12.5 kHz)
≥
375 Hz but
≤
500 Hz
(25 kHz)
≥
500 Hz but
≤
1000 Hz
Secure
Modulation
(radios with
conventional,
secure mode,
talkaround
operation only)
As above
Programmed
conventional
channel (secure
mode operation)
Load key into
radio.
As above
Deviation:
≥
3.7 kHz but
≤
4.3 kHz
*
Содержание APX 4000
Страница 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li BASIC SERVICE MANUAL ...
Страница 6: ...Notes iv Commercial Warranty ...
Страница 8: ...ii Notes ...
Страница 16: ...x Portable Radio Model Numbering System Notes ...
Страница 46: ...3 12 Basic Theory of Operation Controller Section Notes ...
Страница 60: ...5 12 Performance Checks Transmitter Performance Checks Notes ...
Страница 90: ...6 30 Radio Alignment Procedures Performance Testing Figure 6 41 Transmitter Test Pattern Screen 900 MHz ...
Страница 128: ...8 34 Disassembly Reassembly Procedures Ensuring Radio Submergibility Notes ...
Страница 138: ...10 6 Exploded Views and Parts Lists APX 2000 APX 4000 APX 4000Li Back Kit Exploded View Parts List Notes ...
Страница 142: ...Index 4 Index Notes ...
Страница 143: ...Title Page ASTRO APX 1000 Digital Portable Radios Section 2 VHF UHF1 UHF2 700 800 MHz APX 1000 ...
Страница 144: ...ii Notes ...
Страница 150: ...viii List of Figures Notes ...
Страница 152: ...x Portable Radio Model Numbering System Notes ...
Страница 208: ...6 24 Radio Alignment Procedures Performance Testing Figure 6 30 Transmitter Test Pattern Screen 700 800 MHz ...
Страница 240: ...7 32 Disassembly Reassembly Procedures Ensuring Reliable Splash Protection Notes ...
Страница 250: ...9 6 Exploded Views and Parts Lists APX 1000 Back Kit Exploded View Parts List Notes ...
Страница 254: ...Index 4 Index Notes ...
Страница 255: ...Title Page ASTRO APX 1000 Digital Portable Radios Section 3 900 MHz APX 1000 ...
Страница 256: ......
Страница 262: ...viii List of Figures Notes ...
Страница 264: ...x Portable Radio Model Numbering System Notes ...
Страница 278: ...3 8 Basic Theory of Operation Controller Section Notes ...
Страница 336: ...7 32 Disassembly Reassembly Procedures Ensuring Reliable Splash Protection Notes ...
Страница 346: ...9 6 Exploded Views and Parts Lists APX 1000 Back Kit Exploded View Parts List Notes ...
Страница 350: ...Index 4 Index Notes ...
Страница 351: ...Title Page ASTRO APX APX 2000 APX 4000 Digital Portable Radios Section 4 APX 2000 APX 4000 Two Knobs ...
Страница 352: ...ii Notes ...
Страница 360: ...x Portable Radio Model Numbering System Notes ...
Страница 400: ...5 12 Performance Checks Transmitter Performance Checks Notes ...
Страница 427: ...Radio Alignment Procedures Performance Testing 6 27 Figure 6 34 Transmitter Test Pattern Screen 700 800 MHz ...
Страница 428: ...6 28 Radio Alignment Procedures Performance Testing Notes ...
Страница 434: ...7 6 Encryption Erase an Encryption Key Notes ...
Страница 478: ...8 44 Disassembly Reassembly Procedures Ensuring Radio Submergibility Notes ...
Страница 488: ...10 6 Exploded Views and Parts Lists APX 2000 APX 4000 Two Knobs Back Kit Exploded View Parts List Notes ...
Страница 489: ...Title Page ASTRO APX 1000 APX 2000 APX 4000 APX 4000 Li Digital Portable Radios Section 5 Appendices ...
Страница 490: ...ii Notes ...
Страница 492: ...A 2 Accessories Notes ...
Страница 496: ...Notes B 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Страница 500: ...C 4 LACR Replacement Parts Ordering and Motorola Service Centers Motorola Service Centers Notes ...
Страница 520: ...Glossary 12 Glossary Notes ...
Страница 524: ...Index 4 Index Notes ...
Страница 525: ......