Motorola EP450 service manual To Perform Transmit High Power Tuning, do the following

5-6Radio Alignment Procedures: Transmitter Alignment Options

Table 5-3. Transmit High/Low Power Level

	RF Band (MHz)	Model Number	High Power(W)	Low Power (W)
16	Channel VHF 146-174	H65KDC9AA2AN	5.2-5.5	1.1-1.3
64	Channel VHF 146-174	H65KDH9AA4AN	5.2-5.5	1.1-1.3
16	Channel UHF 1 403-440	H65QDC9AA2AN	4.2-4.5	1.1-1.3
64	Channel UHF 1 403-440	H65QDH9AA4AN	4.2-4.5	1.1-1.3
16	Channel UHF 2 438-470	H65RDC9AA2AN	4.2-4.5	1.1-1.3
64	Channel UHF 2 438-470	H65RDH9AA4AN	4.2-4.5	1.1-1.3
16	Channel UHF 3 465-495	H65SDC9AA2AN	4.2-4.5	1.1-1.3
64	Channel UHF 3 465-495	H65SDH9AA4AN	4.2-4.5	1.1-1.3

5.4.3.1To Perform Transmit High Power Tuning, do the following:

1.Under the Tx Align menu, select Transmit Power, then select High (Figure 5-5).

2.Press PTT Toggle. This will key the radio up at 1st test frequency (F1).

3.Adjust the high power level to be as defined by Table 5-3. Move the slider/spin control or keying in values in the edit control (press ENTER to confirm your selection after typing in the softpot value).

4.Press PTT Toggle to dekey the radio, go to the next frequency point by selecting the slider, typing in the edit control box (press ENTER to confirm selection after typing in the softpot value) or tog- gling the softpot value using the spin control.

5.Press PTT Toggle again to key up the radio at the selected frequency point.

6.Repeat steps 3-5 for the remaining test frequencies (F2-7)

7.Press Program to store the softpot values into the radio’s codeplug.

8.Exit the Transmit High Power function.

9.If the radio uses only high power channels, proceed to adjust modulation. If low power channels are used, perform Transmit Low Power Tuning as defined.

5.4.3.2To Perform Transmit Low Power Tuning, do the following: -

1.Under the Tx Align menu, select Transmit Power, and then select Low.

2.Press PTT Toggle. This will key the radio up at 1st test frequency (F1).

3.Adjust the power level to be as defined by country power level specifications by moving the slider/spin control or keying in values in the edit control (press ENTER to confirm your selection after typing in the softpot value).

4.Press PTT Toggle to dekey the radio, go to the next frequency point by selecting the slider, typing in the edit control box (press ENTER to confirm your selection) or toggling the softpot value using the spin control.

5.Press PTT Toggle again to key up the radio at the selected frequency point.

6.Repeat steps 3-5 for the remaining test frequencies (F2-F7).

7.Press Program to store the softpot values into the radio’s codeplug.

8.Exit the Transmit Low Power function.

December 3, 2003 HKLN4215A