Frequency dis-

play: Frequency of the VFO or the Memory Channel is displayed. Frequency is expressed in 10 Hz steps (100 Hz for VHF band).

Timer operation

display : When the ON TIME or OFF TIME switch is pressed, the Frequency display changes to indicate timer operational status display (ON/OFF and time).

B. Selectivity

®Memory Channel

number display : Memory Channel Number is dis- played.

Clock number

display

: When the POWER switch is

 

turned OFF, C1 (CLOCK 1) or C2

 

(CLOCK 2), whichever is selected

 

by the CLOCK SELECTOR switch,

 

is displayed. When the CLOCK

 

SELECTOR switchis turned OFF,

 

nothing will be displayed.

OPTIONAL

FILTER

COMBINATION

N : None

M1 : None

N : None M1 : YK-88SN

N : YK-88C M1 : None

N : YK-88CN M1 : None

N : YK-88C and

M1 : YK-88SN

N : YK-88CN and

M1 : YK-88SN

N : YK-88CN and

M1 : YK-88C

SELECTIVITY

 

 

 

MODE KEY

 

 

SWITCH

USB

LSB

 

CW

FSK

AM

FM

POSITION

 

AUTO

 

 

 

2.4 kHz

 

6 kHz

 

N

 

 

 

 

 

 

 

M1

 

 

 

2.4 kHz

 

 

12 kHz

M2

 

 

 

6 kHz *

 

 

 

W

 

 

 

 

 

 

AUTO

 

2.4 kHz

 

1.8 kHz

 

6 kHz

 

N

 

 

 

1.8 kHz

 

 

 

M1

 

 

 

 

 

12 kHz

 

 

 

 

 

 

M2

 

 

 

2.4 kHz

 

 

 

W

 

 

 

6 kHz *

 

 

 

AUTO

 

2.4 kHz

 

500 Hz

 

6 kHz *

 

N

 

 

 

500 Hz

 

 

 

M1

 

 

 

2.4 kHz

 

 

12 kHz

M2

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

6 kHz *

 

 

 

AUTO

 

2.4 kHz

 

270 Hz

 

6 kHz

 

N

 

 

 

270 Hz

 

 

 

M1

 

 

 

2.4 kHz

 

 

12 kHz

M2

 

 

 

 

 

 

 

 

 

6 kHz *

 

 

 

W

 

 

 

 

 

 

AUTO

 

2.4 kHz

 

500 Hz

 

6 kHz *

 

N

 

 

 

500 Hz

 

 

 

M1

 

 

 

1.8 kHz

 

 

12 kHz

M2

 

 

 

2.4 kHz

 

 

 

W

 

 

 

6 kHz *

 

 

 

AUTO

 

2.4 kHz

 

270 Hz

 

6 kHz *

 

N

 

 

 

270 Hz

 

 

12 kHz

M1

 

 

 

1.8 kHz

 

 

M2

 

 

 

2.4 kHz

 

 

 

W

 

 

 

6kHz*

 

 

 

AUTO

 

2.4 kHz

j

270 Hz

 

j 6 kHz *

 

N

 

 

 

270 Hz

 

 

12 kHz

M1

 

 

 

500 Hz

 

 

M2

 

 

 

2.4 kHz

 

 

 

W

 

 

 

6 kHz *

 

 

 

*: When the YK-88A-1 Crystal Filter is installed in the filter for W position, selectivity will not be changed, but the shape factor will be improved.

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