Kenwood TK-480 User Manual

TK-480/481

1. Sensitivity

1) SYS – GRP : 1 – 1

SSG

Panel

ANT

Check

12dB SINAD or more.

check

SSG output : –116dBm

MOD : 1kHz

AF VTVM

DEV : 

±

3kHz (TK-480)

Oscilloscope

:

±

1.5kHz (TK-481)

Distortion
meter

2. Squelch

1) SYS – GRP : 4 – ✽

Panel

Encoder Adjust to point of

adjustment

Select

SQL    ✽ ✽ ✽

knob

closing squelch.

in tuning mode.

SSG output : 3dB below to

12dB SINAD level

3. Squelch

1) SYS – GRP : 4 – 1

Check

Squelch must be opened.

check

SSG output : 12dB SINAD level

See Note.

2) SSG output : OFF

Squelch must be closed.

Note : When squelch is adjusted, the microcomputer simultaneously reads and writes the RSSI level. Do not write adjustment values without the SSG

connected.

22. BATT

1) SYS – GRP : 4 – 1

Power meter Panel

ANT

Panel

Encoder Check

Can not transmit.

detection

BATT terminal voltage : 5.7V

Deviation

knob

LED (TX) blinks.

check

PTT : ON

meter
Oscilloscope

2) BATT terminal voltage : 6.5V

Transmit

PTT : ON

AG
AF VTVM

Note : When the CPU is changed these adjustment values will become suitable values for NPSPAC, the deviations except MAX DEV in NPSPAC band

are automatically adjusted.