6-8
Radio Alignment Procedures
: Transmitter Alignments
6.5.3
Power Characterization Tuning
Tuning of the radio is done through
Power Characterization
tuning screen.
IMPORTANT:
Power Characterization Tuning Points must be tuned before tuning
Power Characterization Tuning.
NOTE:
a.The longer the RF cable, the more the attenuation of the power reading.
b.Use a standard 50 ohm cable.
c. Remember to set the Communication Analyzer to baseband power.
1. Select the
TX Power Characterization
alignment screen. The screen indicates the transmit
power to be used. See
.
2. Left-click the box under “Measure Power 1” for the desired frequency field. (The selected box
is highlighted).
3. Click the
PTT Toggle
button on the screen to make the radio transmit. The screen indicates
whether the radio is transmitting.
4. Measure the transmit power of the radio with a service Monitor.
5. Input the transmit power in watts using two decimal places into the highlighted “Measure
Power 1” box.
6. Left-click the box under “Measure Power 2” box for the same frequency field. (The selected
box is highlighted).
7. Measure the transmit power of the radio with a service Monitor.
8. Input the transmit power in watts using two decimal places into the highlighted “Measure
Power 2” box.
9. Repeat steps 2 to 8 for all frequencies.
10. Left-click the
Program All
button on the screen to dekey the radio and save the tuned values.
Figure 6-7. Transmit Power Characterization Alignment Screen (900 MHz)
Содержание APX 4000
Страница 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li BASIC SERVICE MANUAL ...
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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 ...
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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 ...
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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 ...
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