Motorola MT 2000 매뉴얼 - 페이지 3

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Side mounted, weather sealed

universal connected

or manually through operation of a switch. Variable RF power level provides the

capability of having up to two power levels in one radio, and of operating in high or

low power on a per channel basis. The default power levels in VHF are 5 Watts (high)

and 1 Watt (low) and in UHF are 4 Watts (high) and 1 Watt (low). The two power

levels can be changed in the field by a service technician if other than the default

settings are required.

Smart PTT-Busy Channel Lockout

Prevent users from "talking over" each other by restricting the user from transmitting

if activity is detected on the channel. The radio will generate a continuous tone upon

PTT depress if a transmission is not being allowed. Inhibit Transmit can be activated

for any busy channel or only on a busy channel with a different squelch code. A

quick-key override option can work in conjunction with Smart PTT to allow the user

to override the transmit inhibit state for times when transmission is critical.

Repeater and Talkaround Operation

Allows the user to choose operation through a repeater (where the transmit frequen-

cy is not equal to the receive frequency), or operation that bypasses a repeater and

talks directly to another unit (Talkaround of Direct Operation). When the feature is

mode slaved, the channel is programmed to operate either in the direct or repeat

mode. Alternatively, the repeater/talkaround function can be programmed to the tog-

gle switches where the user can select from the two operating choices in the field.

Coded Squelch Operation

Allows the user to operate a radio in Carrier Squelch, PL or DPL mode. When in the

Carrier Squelch mode, the user will hear all traffic on the selected channel, but when

operating PL or DPL modes, the user will hear only those messages that are intend-

ed for his group. Tone PL and Digital PL can be mixed on a per channel basis.

Low Battery Alert

An annunciator will appear in the display if the battery falls below a specified voltage

level while in the transmit mode. The radio can also be programmed to sound an

alert tone if the low battery condition is detected during transmission or periodically

while in the stand-by mode.

Time-Out Timer

Limits the amount of time the user can continuously transmit on a channel. If the PTT

is held down longer than the preprogrammed limit, the radio automatically emits a

warning tone, then stops transmitting, and will generate a talk prohibit tone until the

PTT is released.

SIGNALLING FEATURES

MDC-1200 STAT-ALERT Signalling

Unit ID and Emergency—Each MT 2000 radio can be programmed to send a unique

digital identification code at the beginning of each transmission, at the end, or both.

This ID may be combined with an emergency alarm that is activated by an emer-

gency button on that top of the radio. The dispatcher can quickly identify the radio

user, and also receive nearly instant clear indication of critical situations.

GENERAL FEATURES

Back-lit 15 button keypad

Call Alert and Selective Call Decode

Provides an efficient way for the dispatcher to initiate a

page or a voice page message to an individual or a

group. It is a convenient way to eliminate the need for

users to listen to traffic that does not concern them.

When the user receives a Call Alert, the radio will con-

tinuously generate a series of four tones and flash the

green LED until the user takes action. When the user

receives a Selective Call, the radio will generate alert

tones, flash the green LED, and will unmute so an

incoming message can be heard.

Radio Check

Allows the dispatcher to determine if the radio unit is

on the air and within communications range without

disturbing the radio operator.

Tilt Switch

When equipped with the optional Tilt Switch accesso-

ry, the MT 2000 radio will send an emergency trans-

mission after a preprogrammed delay time if the radio

is tilted greater than 60°.

Touch-Code Signalling

Touch-Code signalling allows encoding of Dual Tone

Multi-Frequency tones via a keypad. This lets a user

access the land-line phone network or gives them the

capability to operate remote control devices. There are

several operational configurations that may be pro-

grammed by the user, including manual or automatic

phone line access, and live or buffered dialing.

OPTIONAL FEATURES

Intrinsically Safe

The MT 2000 portable, when ordered with the

Intrinsically Safe option and used with Motorola's

FM batteries, is approved for operation in hazardous

atmospheric environments by the U.S. Factory

Mutual agency.

MOTOROLA BUILT AND BACKED

ALT

The MT 2000 portable will keep working under harsh

conditions. Like all Motorola products, the radio is

subjected during the design stages to our unique

Accelerated Lift Test (ALT) which simulates five years

of intensive field stress.

Warranty

All MT 2000 radios are backed by Motorola's One Year

Parts and Labor Warranty for protection against

defects in material and workmanship under normal use

and service.