TH-K2AT/K2E/K2ET

ADJUSTMENT

Item

Condition

Measurement

 

 

Adjustment

Specifications/

Test equipment

Unit

Terminal

Unit

Parts

Method

Remarks

 

 

 

1)Frequency: 145.000MHz

Linear detector

TX-RX

ANT

 

VR5

4.2kHz

±0.1kHz

 

(E, E3)

AG

(A/3)

MIC

 

 

According to the

 

 

Frequency: 146.000MHz

Oscilloscope

 

 

 

 

larger +, –.

 

 

(K, K2, M, M2)

 

 

 

 

 

 

 

 

PTT: O N

 

 

 

 

 

 

 

6.MIC

MIC terminal input

 

 

 

 

 

Change the AG

4mV - 12mV

sensitivity

AG: 1kHz

 

 

 

 

 

output level to

 

Check

Detector: P-P/2

 

 

 

 

 

obtain 3kHz

 

 

HPF: OFF

 

 

 

 

 

deviation.

 

 

LPF: 15kHz

 

 

 

 

 

 

 

 

De-emphasis: OFF

 

 

 

 

 

 

 

 

TX power: Low

 

 

 

 

 

 

 

 

1)Frequency: 145.000MHz

 

 

 

 

 

 

 

 

(E, E3)

 

 

 

 

 

 

 

 

Frequency: 146.000MHz

 

 

 

 

 

 

 

 

(K, K2, M, M2)

 

 

 

 

 

 

 

 

PTT: ON

 

 

 

 

 

 

 

7.Tone

Switch to Adjustment mode

Linear detector

 

ANT

 

 

 

 

deviation

and carry out the operations

 

 

 

 

 

 

 

 

for adjustment item M.

 

 

 

 

 

 

 

 

(Refer to page 33)

 

 

 

 

 

 

 

 

Detector: P-P/2

 

 

 

 

 

 

 

 

HPF: OFF

 

 

 

 

 

 

 

 

LPF: 3kHz

 

 

 

 

 

 

 

 

De-emphasis: OFF

 

 

 

 

 

 

 

 

TX power: Low

 

 

 

 

 

 

 

 

1)LCD display: DVL,

 

 

 

 

Encoder

Write

0.8kHz ±50Hz

 

Frequency: 144.000MHz

 

 

 

 

[MENU]

 

 

 

PTT: ON

 

 

 

 

 

 

 

 

2)LCD display: DVC,

 

 

 

 

Encoder

Write

 

 

Frequency: 145.000MHz

 

 

 

 

[MENU]

 

 

 

PTT: ON

 

 

 

 

 

 

 

 

3)LCD display: DVH,

 

 

 

 

Encoder

Write

 

 

Frequency: 145.990MHz

 

 

 

 

[MENU]

 

 

 

PTT: ON

 

 

 

 

 

 

 

8.DCS

Switch to Adjustment mode

 

 

 

 

 

 

 

deviation

and carry out the operations

 

 

 

 

 

 

 

 

for adjustment item N.

 

 

 

 

 

 

 

 

(Refer to page 33)

 

 

 

 

 

 

 

 

Detector: +P HOLD

 

 

 

 

 

 

 

 

HPF: OFF

 

 

 

 

 

 

 

 

LPF: 3kHz

 

 

 

 

 

 

 

 

De-emphasis: OFF

 

 

 

 

 

 

 

 

TX power: Low

 

 

 

 

 

 

 

 

1)LCD display: DVL,

 

 

 

 

Encoder

Write

0.8kHz ±50Hz

 

Frequency: 144.000MHz

 

 

 

 

[MENU]

 

 

 

PTT: ON

 

 

 

 

 

 

 

 

2)LCD display: DVC,

 

 

 

 

Encoder

Write

 

 

Frequency: 145.000MHz

 

 

 

 

[MENU]

 

 

 

PTT: ON

 

 

 

 

 

 

 

 

3)LCD display: DVH,

 

 

 

 

Encoder

Write

 

 

Frequency: 145.990MHz

 

 

 

 

[MENU]

 

 

 

PTT: ON

 

 

 

 

 

 

 

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