Yaesu Musen VX 800U Users manual

VX-800U Operating Manual

1,Controls & Connectors

LED Indicator

Glows Green: Scan active
Blinks Green: Busy Channel (or SQL off)
Glows Red: Transmit
Blinks Red: Battery Voltage is low

Antenna Jack
PTT (Push to Talk) Switch
Monitor Button
Lamp Button
CH (Channel) Selector
VOL/PWR Knob
LCD
SEL1 KEY (Left)
SEL2 KEY (Right)
Toggle SW
MIC/SP Jack (External MIC/SP)
Speaker
Main Microphone
Sub Microphone (Noise Canceling Microphone)
Battery Pack Latch
16-Button DTMF Keypad (16-key versi on onl y)

VX-800U@Operating Manual

2,Before You Begin

Battery Pack Install ati on and Removal

 To install the battery, hold the transceiver with your left hand, so your palm is over the

speaker and your thumb is on the top of the belt clip. Insert the battery pack into the battery
compartment on the back of the radio while tilting the Belt Clip outward, then close the
Battery Pack Latch until it locks in place with a “Click.”

 To remove the battery, turn the radio off and remove any protective cases. Open the Battery

Pack latch on the bottom of the radio, then slide the battery downward and out from the radio
while unfolding the Belt Clip.

Caution!: Do not attempt to open any of the rechargeable Ni-Cd packs, as they could

explode if accidentally short-circuited.

Low Battery Indication

 As the battery discharges during use, the voltage gradually becomes lower. When the battery

voltage reaches 6.0 volts, substitute a freshly charged battery and recharge the depleted pack.
The TX/BUSY indicator on the top of the radio will blink red when the battery voltage is low.

 Avoid recharging Ni-Cd batteries often with little use between charges, as this can degrade

the charge capacity. We recommend that you carry an extra, fully-charged pack with you so
the operational battery may be used until depletion (this “deep cycling” technique promotes
better long-term battery capacity).

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

YAESU MUSEN CO., LTD.

1

FCC ID: K66VX-800U
EXHIBIT # 11A

VX-800U@Operating Manual

familiar with the basic operation of the VX-800.

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.

 Rotate the VOL/PWR knob to set the volume level. If no signal is present, press and hold the

Monitor button (the center 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 (lower right-hand corner) in a normal voice level. To return to the Receive mode,
release the PTT switch.

 Press the top panel’s SEL1/SEL2 button to active one of the preprogrammed functions,

which may have been enabled at the time of programming by the dealer. See the next section
for details regarding the available features.

 Switch the top panel’s Toggle SW position to active one of the preprogrammed functions,

which may have been enabled at the time of programming by the dealer. There are three
positions of [A (left)], [B (center)] and [C (right)] in the toggle switch. See the next section for
details regarding the available features.

 Press the DTMF keys on the telephone keypad to send DTMF tones.(16-key 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.

4,KEY and TOGGLE Functions

VX-800 have the [SEL1], [SEL2], [MON], [LAMP] Key, ([A], [B], [C], [D] Key: only
16-key version) and Toggle SW. The Key and SW function can be customized, via
programmed by YAESU dealer, to meet your communications requirements. Some
features may require the purchase and installation of optional internal accessories. The
possible KEY and SW programming features are illustrated below.

[SEL1], [SEL2], [MON], [LAMP],[A], [B], [C] and [D] Key
Monitor (Generally, it sets to MON Key)
Lamp (Generally, it sets to LAMP Key)
Channel Scan
Dual Watch
High/Low Power
Talk Around
TX Save Disable
Encryption Disable (only, when using DTMF/Encryption Unit)
Follow-Me DW
Group Up
Group Down
Channel Up
Channel Down
SET Mode
Call/Reset (only, when using DTMF/Encryption Unit)

YAESU MUSEN CO., LTD.

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FCC ID: K66VX-800U
EXHIBIT # 11B