User's Manual

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Table Of Contents

VOLUME (OPTIONAL‐T13)

Rotate the volume control clockwise to adjust the volume control

for a comfortable listening level. If no sound is heard, temporarily

un-mute the radio by briefly rotating the Squelch Control full anti-

clockwise. You can adjust the volume by listening to the receiver's

background noise.

When finished, return squelch setting. (See section on setting

Squelch.)

CHANNEL SELECTING (OPTIONAL‐T14)

Push to select the memory channel number for the selected

readout.

The channel display will Rotate and select the higher channel

when the up button is pressed.

By pressing the down button the Channel display will rotate to

display the lower channel selected. The selected channel is

displayed.

SQUELCH (Frontpaneloption‐T13)

The squelch is used to eliminate any annoying background noise

when there are no signals present.

This control is located on the main controller motherboard (RV6)

an optional model can have it fitted on the front panel. A

technicians tuning tool will be required to adjust this setting.

(Factory set for 8dB SINAD)

When no signal is received, rotate the Squelch control (SQL) fully

counterclockwise first, and then rotate SQL clockwise to the point

that the noise just disappears. This will provide optimum Squelch

performance.

When the Squelch is Open, the receiver's background noise can

be heard and 'Amber RX LED' is lit on the front panel display.

When the Squelch is closed, the receiver remains quiet when there

are no signals present but any incoming signals will override the

Squelch and be heard in the speaker.

NOTE: If an incoming signal is very weak and is close to the

minimum squelch level, it may become broken or “chopped” by the

squelch action. To prevent this, simply open the squelch to allow

the signal to be heard clearly. Alternatively, you can reduce the

squelch sensitivity as described above.

When CTCSS is enabled the channel remains quiet until someone

transmits using the same tone, and the 'Green Tone LED' lamp

will be lit. When the transmission ends, the channel becomes quiet

again. By using different tones, several groups of people can share

the same channel without disturbing each other.

ACCESSORY SWITCH (Depends on Options)

The Accessory button is a programmable momentary switch.

Which is assigned a function in software programming. (Subject to

Radios firmware)

See Dealer for application notes for further information on this

feature.

REPEATER MODE

In repeater mode, the received signal is processed and retransmits

at a different frequency.

Repeaters are usually located on hills, mountains or tall buildings.

The increased elevation greatly improves the range of the repeater

beyond that of a normal base or Mobile. This means that the

repeaters are able to receive and retransmit signals to radios that

would otherwise be out of range of each other.

To enable the Repeater Function (TTR) the operating channel

will required to be programmed as a repeater and User Dip

Switch2-4 enable on motherboard.

Receiving A Call

With the MX800 powered ‘ON’ the front panel Green led is lit.

• Set the audio and squelch levels as per SQUELCH

and VOLUME section.

• Select the desired receiving channel as per Channel

selecting section.

• When receiving a signal the ‘Amber RX LED‘ indicator

lights green when the squelch is open, and audio is

emitted from the speaker.

• Listen for your call sign when you hear activity, and

reply promptly by identifying yourself if called. (For

example: Base receiving).

Transmitting To Making A Call

With the MX800 powered ‘ON’ the front panel Green led is lit.

• Select the desired channel, as previously described.

• If the ‘Amber RX LED' indicator is on, the channel is

busy and you must wait until it is free, before

proceeding. If you attempt to transmit anyway, the

other party may not receive your transmitted signal.

• Lift the microphone off-hook and listen to check that

no one else is using the channel. You may also have

to press the Monitor Key on the desktop Microphone

or the Accessory button on the radio briefly, depending

on the microphone used and the options programmed

to your radio.

• When using the Hand-Held microphone, Hold it about

5cm from your mouth and press the Press-To-Talk

(PTT) key, located on the side of the microphone (see

Figure 3-1). Speak clearly into the microphone at your

normal voice level, identifying yourself by your call

sign, and the person you wish to contact. (For

example: Base to Mobile 2.).

• The ‘Red RX LED’ indicator lights while transmitting.

• Release the PTT key when you have finished talking.

Transmit Timer

Your MX800 is fitted with a preprogrammed timer to limit the

maximum length of transmissions.

When the time limit is reached, the transmission is terminated.

(Subject to Radio Firmware)

Illustration only. Microphone not included

0 0

CHANNEL

DOWN

CHANNEL

DOWN

CHANNEL

TEN UNITS UNITS

PTT

ure 3-1

ure 3-2

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Summary of content (2 pages)

PAGE 1
VOLUME (OPTIONAL‐T13) Rotate the volume control clockwise to adjust the volume control for a comfortable listening level. If no sound is heard, temporarily un-mute the radio by briefly rotating the Squelch Control full anticlockwise. You can adjust the volume by listening to the receiver's background noise. When finished, return squelch setting. (See section on setting Squelch.) CHANNEL SELECTING (OPTIONAL‐T14) 0 0 Push to select the memory channel number for the selected readout.
PAGE 2
Unpacking SWR The MX800 Radio is securely packed for transport with special foam packers within a pasteboard container. Before unpacking the MX800 radio, please inspect the MX800 & packaging for signs of damage and report any damage to your MX800 distributor. Upon unpacking of the MX800 radio, please ensure that all items shipped were received, report any missing items to your MX800 distributor.