Motorola IC-T81E Adjustment Procedures, Preparation, ‘ Required Test Equipment, Connection

SECTION 5 ADJUSTMENT PROCEDURES

5-1 PREPARATION

‘REQUIRED TEST EQUIPMENT

EQUIPMENT	GRADE AND RANGE		EQUIPMENT	GRADE AND RANGE
DC power supply	Output voltage	: 13.5 V DC	DC voltmeter	Input impedance	: 50 kΩ /V DC or better
	Current capacity	: 3 A or more
			Audio generator	Frequency range	: 300–3000 Hz
	Measuring range	: 1–10 W		Measuring range	: 1–500 mV
RF power meter	Frequency range	: 28–1500 MHz
				Frequency range	: 28–1300 MHz
(terminated type)	Impedance	: 50 Ω	Standard signal
				Output level	: 0.1 µV–32 mV
	SWR	: Less than 1.2 : 1	generator (SSG)
					(–127 to –17 dBm)
	Frequency range	: 0.1–1500 MHz
Frequency counter				Frequency range	: DC–20 MHz
	Frequency accuracy : ±1 ppm or better		Oscilloscope
				Measuring range	: 0.01–20 V
	Sensitivity	: 100 mV or better
			AC millivoltmeter	Measuring range	: 10 mV–10 V
FM deviation meter	Frequency range	: 30–1500 MHz
	Measuring range	: 0 to ±10 kHz	Attenuator	Power attenuation	: 40 or 50 dB

‘ENTERING THE ADJUSTMENT MODE q Connect a 68 kΩ terminator to the [SP] jack.

w Push and hold the [SQL] key, and then turn power ON.

Note: The frequency of wide range appears at the display using this operation.

■CONNECTION

FM Deviation meter

Attenuator 40 dB or 50 dB

to the antenna connector

RF power meter 10 W/50 Ω

Frequency counter

Standard signal generator

to [SP] jack

JIG

+

68 kΩ

-

CAUTION:

DO NOT transmit while an SSG is connected to the antenna connector.

AD-92SMA

Optional SMA–BNC adaptor

1/8" (3.5 mm)

3-conductor plug

to [MIC] jack

Audio generator

AC millivoltmeter

Power supply 13.5 V / 3 A

5 - 1