Vertex Standard VX-454 User Manual download pdf (Page 16)

VX-450 SERIES OPERATING MANUAL

 If a Speaker/Microphone

is available, remove the

plastic cap and its two

mounting screws from

the right side of the trans-

ceiver, then align the con-

nector of the Speaker/

Microphone on the trans-

ceiver body; secure the

connector pin using the screws supplied with the

Speaker/Microphone. Hold the speaker grille up

next to your ear while receiving. To transmit, press

the PTT switch on the Speaker/Microphone, just

as you would on the main transceiver’s body, and

speak into the microphone on a normal voice level.

Note 1): Save the original plastic cap and its

mounting screws. They should be reinstalled

when not using the Speaker/Microphone.

2) When you press the PTT switch on the

Speaker/Microphone, it disables the internal mi-

crophone, and vice versa.

 If the Busy Channel Lockout feature has been

programmed on a channel, the radio will not trans-

mit when a carrier is present. Instead, the radio

will generate short beep three times and indicate

“

CH BUSY” on the display (VX-454 and VX-

459). Release the PTT switch and wait for the

channel to be clear of activity.

 If CTCSS or Digital Coded Squelch (DCS) Lock-

out has been programmed on a channel, the radio

can transmit only when there is no carrier being

received or when the carrier being received in-

cludes the correct CTCSS tone or DCS code.

Automatic Time-Out Timer

If the selected channel has been programmed for au-

tomatic time-out, you must limit the length of each

transmission. While transmitting, a beep will sound

10 seconds before time-out. Another beep will sound

just before the deadline; the “TX” indicator will dis-

appear and transmission will cease soon thereafter.

To resume transmitting, you must release the PTT

switch and wait for the “penalty timer” to expire.

OPERATION

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Vertex Standard VX-454 User Manual Page 16

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