Specifications

ALIGNMENT PROCEDURE

• WARNING: Any repairs or adjustments should be made under the supervision of a certified technician.

SUGGESTED TEST EQUIPMENT

The following equipment, or its equivalent, is required for proper alignment of your VHF synthesized mobile radio:

1. Termaline Watt meter, or Through-line Watt meter with termination into 50 ohm dummy load.

AC/DC VOM with a minimum of 1 MΩ input impedance.

3. SINAD Meter.

4. FM Communications Monitor.

5. Regulated Power Supply capable of 9 volts to 16 volts adjustable; at least 10 ampere capability.

6. Oscilloscope.

7. Audio Distortion Meter (desirable but not necessary).

8. Frequency Counter.

PRE-ALIGNMENT NOTES:

1. Refer to the Alignment Points Drawings as required for location of components.

2. The VHF synthesized mobile radio covers the following frequency ranges, 148-165 MHz band and

160-174 MHz band, without component changes.

3. The radio has been factory aligned for operation within the center 10 MHz portion of each of the bands. If

operation is to be within this range, no further alignment is necessary. If operation outside this range (but

still within the appropriate frequency band) is desired, the following alignment procedure should be

performed.

PROGRAMMING FOR ALIGNMENT

For the alignment procedures the EEPROM should be programmed as follows:

1. An EEPROM should be programmed with 3 transmit and 3 receive frequencies.

2. The lowest and highest frequencies should enclose the user’s frequencies and be 8 MHz apart. The lowest

and highest frequencies must be within the appropriate frequency band.

3. In addition to programming frequencies, CTCSS and DCS codes must also be programmed to insure that

the modulation deviation for these potential options is correct, even if they are not to be used for the

customer’s operation. The following format should be used:

Lowest RX/TX frequency 67.0 Hz CTCSS Tone

Middle RX/TX frequency DCS Code 072

Highest RX/TX frequency 250.3 HzCTCSS Tone

Highest RX/TX frequency No Tone Options

MONOGRAM SERIES LBI-38864B

ALIGNMENT PROCEDURE

Page -19-

Nov. 94