Vertex Standard HX270E ユーザーズマニュアル

HX270E

Page 13

1. Turn the POWER/VOLUME CONTROL knob clockwise to turn the trans-

ceiver on.

2. Press the SQL key, then press the [T] key until the

SQL level is 00.

3. Turn up the POWER/VOLUME CONTROL knob until

the noise or audio from the speaker is at a comfort-
able level.

4. Select a channel that has no signal being received (no one is transmit-

ting on the channel) and where only noise is heard.

5. Press the SQL key, then press the [S] key and stop immediately after

the noise disappears. This condition is known as the “Squelch Thresh-
old.” If the squelch is set to a higher level, weak signals may not be
received.

6. To change channels, press the [S] or [T] key.
7. The LCD and keypad are illuminated for 5 seconds when any key is

pressed. The lamp automatically turns off in 5 seconds.

8. To “lock” the channel so that it is not accidentally changed, hold down

the H/L key for about one second. This locks the [S] and [T] buttons
and all the front panel controls except the H/L, PTT and SQL keys. The
“

” symbol will appear on the display to indicate

that the keypad is locked. Hold down the H/L key for
about one second to unlock the keys. The “

” sym-

bol will disappear from the display.