Receiver section, Th-k2at/k2e/k2et, Adjustment – Kenwood 144MHz FM TRANSCEIVER K2E User Manual

Page 36

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TH-K2AT/K2E/K2ET

36

ADJUSTMENT

Receiver section

Item

Condition

Measurement

Adjustment

Specifications/

Test equipment

Unit

Terminal

Unit

Parts

Method

Remarks

1.RX BPF

Squelch level: 0

Adjust

1) Frequency: 145.050MHz

SSG

TX-RX

ANT

VOL

Turn the VOL knob 0.63V

(E, E3)

Oscilloscope

(A/3)

SP

knob

to obtain 0.63V AF

Frequency: 146.050MHz

Distortion meter

output.

(K, K2, M, M2) AF V.M

SSG output: –53dBm (501 uV) Dummy load

SSG MOD: 1kHz

SSG DEV: 3kHz

Switch to Adjustment mode

and carry out the operations

for adjustment item E.

(Refer to page 29)

2) LCD display: BPL

Encoder

Write

Max Sensitivity

Frequency: 136.050MHz

[MENU]

SSG: –119dBm (0.25 uV)

3) SSG: –113dBm (0.501 uV)

Check

12dB SINAD or

more

4) LCD display: BPC

Encoder

Write

Max Sensitivity

Frequency: 146.050MHz

[MENU]

SSG: –119dBm (0.25 uV)

5) SSG: –120dBm (0.22 uV)

Check

12dB SINAD or

more

6) LCD display: BPH

Encoder

Write

Max Sensitivity

Frequency: 160.050MHz

[MENU]

SSG: –119dBm (0.25 uV)

7) SSG: –113dBm (0.501uV)

Check

12dB SINAD or

more

2.IF response 1) Frequency : 144.050MHz

SSG

Check

12dB SINAD or

Check

SSG Frequency: 221.750MHz Oscilloscope

less

SSG output: –60dBm (224uV) Distortion meter

Note: If the

SSG MOD: 1kHz

specification is not

SSG DEV: 3kHz

satisfied, repeat the

AF output: 0.63V/8Ω

operations for

“1. RX BPF

Adjust”.

3.Squelch /

Switch to Adjustment mode

SSG

ANT

S-meter

and carry out the operations

Write

for adjustment item C.

(Refer to page 28)

1) LCD display: SQ1

[MENU]

Write

Note: In the

Frequency: 145.050MHz

Squelch adjust

(E, E3)

ments, all 4

Frequency: 146.050MHz

adjusting points

(K, K2, M, M2)

including the S-

SSG: –125dBm (0.126uV)

meter must be

2) LCD display: SQ2

[MENU]

Write

adjusted.

Frequency: 145.050MHz

Squelch

(E, E3)

Frequency: 146.050MHz

(K, K2, M, M2)

SSG: –120dBm (0.22uV)

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