FCC ID: K6610583020
IC ID: 511B-10583020
Operating Manual
5/7
Vertex Standard Co., Ltd.
3,Operation
Preliminary Steps
Install a charged battery pack onto the transceiver, as described previously.
Screw the supplied antenna onto the Antenna jack. Never attempt to operate this
transceiver without an antenna connected.
If you have a Speaker/Microphone, we recommend that it not be connected until you
are familiar with the basic operation of the VX-820/870.
Operation Quick Start
To turn the top panel’s VOL/PWR knob clockwise to turn on the radio on.
Pull and turn the top panel’s CH selector knob to choose the desired operating
channel. A channel number or channel name will appear on the LCD. (VX-
824/829/874/879 version only)
Rotate the VOL/PWR knob to set the volume level. If no signal is present, press and
hold the Monitor button (the third button on the left side) more than 2 seconds;
background noise will now be heard, and you may use this to set the VOL/PWR knob
for the desired audio level.
Press and hold the Monitor button more than 2 seconds (or press the Monitor button
twice) to quiet the noise and resume normal (quiet) monitoring.
To transmit, press and hold the PTT switch. Speak into the microphone area of the
front panel grille (center right-hand corner) in a normal voice level. To return to the
Receive mode, release the PTT switch.
Press the top panel’s SEL button to active one of the preprogrammed functions that
may have been enabled at the time of programming by the dealer. See the next
section for details regarding the available features.
Press the DTMF keys on the telephone keypad to send DTMF tones. (VX-829/879
version only)
If a Speaker/Microphone is available, remove the plastic cap and its two mounting
screws from the right side of the transceiver, then make the connector of the
Speaker/Microphone touch; secure the connector pin using the screw 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.
Note: Save the original plastic cap and its mounting screws. They should be re-
installed when not using the Speaker/Microphone.
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