Motorola GM300
Features
Specifications
Accessories

Expand
the performance capabilities of your mobile work force with Radius' GM300 Series Mobile Radios. At the forefront of mobile radio design,the GM300 extends our breakthrough product line by being fully compatible with the GP300 Portable Series.

Both GM300 models, the 8-channel and the 16-channel,incorporate state-of-the-art technology, adapting to meet yours specific needs no matter how often they change...and are available at a price readily affordable by all users.

Advanced features include User Programmable Priority Channel Scan and Unlimited Private Line/Digital Private Line (PL/DPL). The 16-channel model includes signalling compatibility with Radius RapidCall Portable Radios. All these features are packaged in a sleek, under-dash unit bearing the trusted Motorola name. Open up a world of new possibilities for your communications needs...with
Radius' GM300 Series Mobile Radios.

FEATURES
Choice of Power and Versatility
The GM300 is available in multiple band with variable power levels to meet your specific needs: VHF - 8 or 16 channels with variable power from 1 to 25 watts and fixed power of 45 watts on selected models UHF - 8 or 16 channels with variable power from 1 to 25 watts and up to 40 watts on selected models.

Synthesized and Field Programmable
Your local Radius dealer can add or change frequencies or other individual characteristics, such as PL or Unit ID.This keeps the system flexible to meet your ever changing needs and minimizes down time. The GM300 is also electronically tuned so your radio automatically adjusts for optimal performance every time you select a channel.

Unlimited Multiple-Coded Squelch Capability (PL/DPL)
The GM300 offers two codes per channel (one for each transmit and receive frequency). You will hear only those calls accompanied by your unit's PL/DPL code and can place calls only to those that accept your code. This feature gives you virtually unlimited opportunity for separate talk groups (16 PL/DPLs with the 8-channel model and 32 PL/DPLs with the 16-channel model), matching the capabilities of the GP300 Portable Series.

Wide Band Frequency Separation
Wide bandwidth allows the addition or changing of frequencies anywhere within the radio's operating band without compromising clarity or performance.

Priority Channel Scan
Both the 8 and 16-channel GM300 feature User Programmable Priority Channel Scan. This gives the radio operator the ability to program a single scan list from the front panel of the GM300 which can then be used to scan multiple channels at the push of a button.This list can be tailored to the operator's needs at any given time. A priority channel can also be designated within the scan list and monitored more frequently.
In addition, the 16-channel GM300 features Pre-Programmed Priority Channel Scan. Your local Radius Dealer can program a separate scan list for each channel allowing the radio operator to check for messages from multiple channels.

Scan Nuisance Channel Delete
When irrelevant conversation on a "nuisance" channel ties up your radio's scan feature, you can temporarily remove it at the press of a button.

Busy Channel Lock-Out
This radio feature keeps lines of communication clear by preventing the radio from receiving unauthorized transmissions or transmitting on a busy channel.

Time-Out Timer
Transmissions can be limited to 60 seconds each, reducing busy channel aggravation. The radio automatically dekeys when the limit is reached. Transmission duration can be programmed to time periods other than 60 seconds, if desired.
Superior Audio Clarity
Motorola's integral 3 Watt,front-facing speaker and compact, high-performance microphone provide clear,crisp sound and transmission.

Local Area Operation
The GM300 offers maximum wide area coverage because of its high sensitivity receiver. However, in some congested urban areas, high sensitivity results in the reception of interfering signals from numerous sources, such as high power TV and paging stations. For these situations, the dealer can program any channel for "local operation". This means the receiver will have additional interference protection within a limited coverage area. If the user sometimes requires wide area coverage on that same frequency, another channel location can be used to program that frequency for normal operation.

Compact and Convenient
The GM300 is designed to be sleek and compact, fitting securely under the dash with a standard one-piece mounting bracket.

Remote Mount Capability
The Remote Mount Kit provides the necessary equipment to detach the front panel controls of the GM300 from the transceiver. This allows for the installation of the transceiver box in the vehicle's trunk or under the seat.

Easy-To-Operate
Mobile users will appreciate the illuminated control buttons for easy night time use. In addition, a large LED channel display and indicators provide information as to the current operating status.

RapidCall Signalling
The 16-channel GM300 provides three types of signalling formats - Quik-Call II, MDC-1200 and DTMF making your mobile fully compatible with GP300 Portable Radios. A mobile unit can be programmed, for example, to send an individual ID number. Each time the Push-To-Talk button is depressed, the corresponding control unit displays this ID. Other capabilities include the ability to page, call, or check a particular unit, to activate the vehicle's horn or lights and to send or receive an Emergency Alert. Radius RapidCall packages also include the Expanded Accessory Connector, providing greater flexibility in adding external hardware such as an Emergency Push Button.


Optional Accessories
Removable Slide Mount Tray
For added security and flexibility, this tray allows you to mount and remove the GM300easily without tools.
Keylock Mount
In situations where your vehicle is often left unattended,the keylock mount keeps your GM300 safe and secure.
Touch-Code Encoding Microphone
Your mobile radio can function as a telephone when used with a properly equipped base/repeater system. The microphone is also available in a backlit keypad model and a nine number memory model.
Heavy-Duty Weatherproof Microphone
Rugged, full-sized microphone adds reliability in the roughest environments.
Base/Control Station Operation
Desk microphone, angled tray, power supply and cable convert your GM300 into a desktop base/control station.
External Speaker
75 Watts of power provides clear communication in noisy environments.

 

SPECIFICATIONS*
Primary Input Voltage
EIA:
CEPT84:
13.8±10%
13.2±20%
Typical
Current Drain
Rated Audio
(7.5W)



1.5A
Standby 400mA
VHF
Model
Series
MDDGMC M03GMC M33GMC M43GMC
Frequency
Range (MHz)
136-162 146-174
RF Output 10-25W* 1-10W* 10-25W* 45W
Channel
Capacity
8 or 16
Transmit 7.0A 4.0A 7.0A 15.0A
UHF
Model Series M04GMC M34GMC M44GMC M44GMC M44GMC M44GMC
Frequency
Range (MHz)
438-470 438-470 403-433 438-470 465-495 490-520
RF Output 1-10W* 10-25W* 25-40W* 25-40W* 25-40W* 25-35W*
Channel
Capacity
16 8 or 16 16 8 or 16 16
Transmit 4.0A 7.5A 12.5A
* Continuously variable power
RECEIVER
  VHF UHF
Channel
Spacing
12.5 kHz 20/25/30 kHz 12.5 kHz 20/25 kHz
TRANSMITTER
  VHF UHF
Frequency
Stability
-30°C to +60°C


±0.00025%
Modulation
Sensitivity

80 mV for 60% max deviation at 1000 Hz
Channel
Spacing
20/25/30 kHz 12.5 kHz 20/25/30 kHz 12.5 kHz

* All specifications are subject to change without notice and are issued for guidance purposes only.

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