Transmit Power Alignment; Rss And Cps Procedures - Motorola ASTRO XTS 3000 Service Manual

XTS 3000 ASTRO Digital Radio Basic Service Manual

7.3 Transmit Power Alignment

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This test can be done using the R2670 Communication Analyzer, the 8900 series Modulation
Analyzer or a Power Meter. Setup the equipment to read Output Power.

7.3.1 RSS and CPS Procedures

Use the following RSS procedure when applicable.
Procedure 7-5 RSS Procedure
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68P81083C85-A March 2004
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• This alignment procedure adjusts the transmit power of the radio and must be performed
for three different power levels (Low, Mid, and High), at multiple frequencies for each
power level, to allow for proper alignment across the entire RF band.
• All power measurements are to be made at the antenna port.
• The transmitter power setting keeps the radiated power at or below the level specified in
the exclusionary clause for low power devices of IEEE Standard C95.1-1991.
From the Service menu, press F2 to select the Transmitter Alignments menu.
Press F3 to select the Transmit Power alignment screen. The screen will indicate
the transmit frequencies and power levels to be used.
Press Tab key (or Enter or Return) to select a frequency field (starting with the
highest frequency shown). Then, press F6 to key the radio. The screen will indicate
that the radio is transmitting.
Use the Up/Down arrow keys to adjust the transmit power per the values specified in
the specifications.
Press F6 to dekey the radio.
Press F8 to program the softpot value.
Repeat steps 3-6 for the remaining frequencies.
Press F10 once to return to the Transmitter Alignment menu, or press F10 twice
to return to the Service menu.
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Transmit Power Alignment
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