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Tk-7150, Adjustment – Kenwood TK-7150 User Manual

Page 39

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TK-7150

39

Item

Condition

Measurement

Adjustment

Specifications/Remarks

Test-

equipment

Unit

Terminal

Parts

Unit

Method

ADJUSTMENT

3. PLL lock

1) CH-SIG : 3-1

DC VM

TX-RX

CV

TX-RX

TC502 8.2V

± 0.1V

voltage

Power meter

2) CH-SIG : 3-1

TC501

PTT : ON

3) CH-SIG : 2-1

Check

1.8V or more

4) CH-SIG : 2-1

2.0V or more

PTT : ON

4. Transmit

1) CH-SIG : 1-1

Power meter Rear

ANT

Front

Selector CH-1 frequency

± 50Hz

frequency

Select Freq_ _ _ _ _

✽✽✽

f. counter

panel

panel

knob

in tuning mode

PTT : ON

5. Transmit

1) Select Freq_LO_ _

✽✽✽

136.00250MHz

± 50Hz

frequency

Frequency : 136.00250MHz

(tune)

PTT : ON

2) Select Freq_HI_ _

✽✽✽

173.99750MHz

± 50Hz

Frequency : 173.99750MHz
PTT : ON

6. MCF

1) CH-SIG : 1-1

Spectrum

TX-RX

CN201

TX-RX

L205

Adjust it to make gain maximum, and make the

• Wide

Spectrum analyzer

analyzer

L207

band flat as ahown in the below.

Span : 25kHz

L209

Scale : 2dB div

Tracking

CN202

Center frequency : 44.850MHz

generator

Tracking generator

Output : –30dBm

• Narrow

1) [PF5] key : Set the narrow

L206

Adjust it to make gain maximum, and make the

“n_ _” appear on the LCD

L208

band flat as ahown in the below.

L210

7. AF coil

1) CH-SIG : 1-1

SSG

TX-RX

CN201

TX-RX

L201

Maximum audio

adjustment

SSG output : –-20dBm (FM)

output level.

frequency : 44.85MHz

AF VTVM

Rear

EXT.SP

DEV : 1.5kHz

4Ω dummy panel

MOD : 1kHz

load

SSG signal inject to CN201.

REF –30.0dBm
2dB/

MARKER
4.50kHz
–0.28dB

RBW
300Hz
VBW
300Hz
DL
–22.02dBm
SWP
1.3

s

SPAN 25.0kHz

CENTER 44.8500MHz

ATT 10dB

3dB or more
(±10kHz)

–4.5kHz +4.5kHz

–10kHz

+10kHz

1.5dB max.

REF –30.0dBm
2dB/

MARKER
3.00kHz
–0.42dB

RBW
300Hz
VBW
300Hz
DL
–22.02dBm
SWP
1.0

s

SPAN 20.0kHz

CENTER 44.8500MHz

ATT 10dB

3dB or more
(±7kHz)

–7kHz

–3kHz

+7kHz

+3kHz

1.5dB max.