Yaesu Musen 10504420 User Manual

VX410/420 Series

FCC ID: K6610504420/IC ID: 511B-10504420

Operating Manual

VX-410/420 Series Operating Manual

Important Notice!

FCC RF Exposure Compliance Requirements for Occupational Use Only:

This Radio has been tested and complies with the Federal Communications Commission (FCC) RF
exposure limits for Occupational Use/Controlled exposure environment. In addition, it complies with the
following Standards and Guidelines:

 FCC　96-326, Guidelines for Evaluating the Environmental Effects of Radio-Frequency Radiation.
 FCC OET Bulletin 65 Edition 97-01 (1997) Supplement C, Evaluating Compliance with FCC Guidelines

for Human Exposure to Radio Frequency Electromagnetic Fields.

 ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to Human Exposure to Radio

Frequency Electromagnetic Fields, 3kHz to 300 GHz.

 ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement of Potentially Hazardous

Electromagnetic Fields-RF and Microwave.

 This radio is NOT approved for use by the general population in an uncontrolled environment.

This radio is restricted to occupational use, work related operations only where the radio
operator must have the knowledge to control its RF exposure conditions.

 When transmitting, hold the radio in a vertical position with its microphone 1 to 2 inches (2.5 to 5

cm) away from your mouth and keep the antenna at least 1 inch (2.5cm) away from your head and
body.

 The radio must be used with a maximum operating duty cycle not exceeding 50 %, in typical

Push-to-Talk (PTT) configurations.
DO NOT transmit for more than 50 % of total radio use time (50 % duty cycle). Transmitting more
than 50 % of the time can cause FCC RF exposure compliance requirements to be exceeded.
The radio is transmitting when the red LED on the top of the radio is illuminated. You can cause
the radio to transmit by pressing the PTT button.

 DO NOT transmit when the radio is used in Body Worn configuration with the following

accessory: belt-clip (Parts # CP7064001).
It must be used ONLY for (1) there is a 4 cm distance from the body during transmitting, (2)
monitoring purposes, using the speaker only and (3) for carrying purposes.

 Always use Vertex Standard authorized accessories.

1/9

Vertex Standard Co., Ltd.

Controls & Connectors

FCC ID: K6610504420/IC ID: 511B-10504420

・ LED Indicator

Glows Green: Monitor on
Blinks Green: Busy Channel (or SQL off)
Glows Red: Transmit
Blinks Red: Battery Voltage is low
Blinks Yellow: Receiving a Selective Call

・ Antenna Jack
・ PTT(Push To Talk)Switch
・ Side1 key(Case side)
・ Side2 key(Case side)
・ CH(Channel) Selector
・ VOL/PWR knob
・ LCD (VX-427 only)
・ A Key (VX-427 only) with 16 keys
・ B Key (VX-427 only) with 16 keys
・ C Key (VX-427 only) with 16 keys
・ D Key (VX-427 only) with 16 keys
・ MIC/SP Jack (External Mic/Earphone)
・ Speaker
・ Internal Microphone
・ Battery Pack Latch

VX410/420 Series

Operating Manual

Before You Begin

Battery Pack Installation 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 titling 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 protective cases. Open the Battery

Pack Latch on the bottom of the radio, and 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 6.3 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)

2/9

Vertex Standard Co., Ltd.

VX410/420 Series

FCC ID: K6610504420/IC ID: 511B-10504420

Operating Manual

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-417/427.

Operation Quick Start

・ To turn the top panel’s [VOL/PWR] knob clockwise to turn on the radio on.
・ Turn the top panel’s [CH] selector knob to choose the desired operating channel.
・ Rotate the [VOL/PWR] knob to set the volume level. If no signal is present, press and

hold the [MONOTOR] (need select by the key config on program) key more than 1
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] key more than 1 seconds (or press the [MONITOR] key

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 grill (lower left-hand corner) in a normal voice level. To return to the Receive mode,
release the [PTT] switch.

・ If a Speaker/Microphone is available, remove the plastic cap and its two mounting screws

from the right side of the transceiver, than insert the plug from the Speaker/Microphone
into the [MIC/SP] jack; secure the plug 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.

Key Functions

The VX-427 has [side1] key, [side2] key, [A], [B], [C] and [D] function keys. These Soft key
functions can be customized, via programming by your VERTEX STANDARD dealer, to
meet your communications/network requirements. Some features may require the
purchase and installation of optional internal accessories. The possible Soft key
programming features is illustrated below, and their functions are explained next chapter.
For further details, contact your VERTEX STANDARD dealer.
For future reference, check the box next to each function that has been assigned to the
Soft key on your particular radio, and keep it handy.

3/9

Vertex Standard Co., Ltd.