The Motorola GM950 mobile two-way radio has been developed to provide an easy to use, yet highly sophisticated, solution to your specific communication needs. The GM950 utilizes 5 tone signalling to deliver functionality which is essential to many mobile communications systems.  Whether you need to improve the safety of your security personnel, or increase the efficiency of your delivery drivers, the GM950 will enable you to achieve your goal. 

Three GM950 models are available, allowing you to choose the configuration  which best meets your requirements:

The N2 fixed call model, offering basic, low-cost fixed 5 tone signalling.

The N3 multicall model, providing "Multicall 1000" for user-variable calls, "ID Decode" (which lets the radio users know who is calling them) and "Status".

The N4 Keypad Multicall model, giving maximum ease of operation for 'Multicall' user variable calls dialed from the keypad, 'ID Decode' with 'Call Stack' (which stores the ID of the last 10 unanswered calls), and 'Status'.  In addition, the keypad may also make DTMF calls, providing access to telephone networks from radio systems equipped with telephone interconnect base stations.

All models benefit from a compact rugged construction which is easy to install. The GM950 has been developed to offer a high level of durability and operational reliability.  Like all Motorola products, the GM950 has passed Accelerated Life Test, which simulates five years' hard use in the field.

Furthermore, as well as being protected against spray water and dust, the GM950 exceeds strict European guidelines on shock and vibration and MIL STD for shock, vibration and crash hazard.

GM950 Functionality
 

• Supports all major 5 tone signalling schemes
• Private Line (CTCSS) and Digital Private Line
• Internal loudspeaker with 4W audio power on N2 and N3 models
• External Loudspeaker with 13W audio power on N4 model
• Choice of 12.5 kHz or 20/25 kHz channel  spacing
• Wideband operation
• Choice of two transmit power levels (5-25 W) programmable per channel 
• Fully Field Programmable using a personal computer running the Windows operating systems
• Choice of 4 channels (N2 models) or 128 channels (N3 and N4 models)
• Data modem interface

Multicall The Multicall feature enables mobile radio users to selectively address voice or status calls to other mobiles.  The N4 Keypad Multicall Model gives maximum ease of operation if multicall is used frequently.

ID Decode The ID number of the calling radio is displayed, allowing you to decide whether the call is urgent (answer immediately) or less important (answer at your convenience).

Call Stack (N4 Only) If received calls are unanswered, perhaps because the operator is away from the vehicle, the radio will store the IDs (numbers) of the last 10 callers.  On return to the vehicle, the operator is able to review and return the missed calls.

DTMF Live Dial (N4 Only) The keypad can be used to place calls to public or private telephone networks on radio systems equipped with telephone interconnect base stations.  In addition, for security purposes, the radio may automatically send the 'DTMF Access Code' necessary on many systems.

Status This feature saves operator time and greatly reduces system traffic.  Day-to-day operational situations may be assigned to a code number and reported back to a central dispatcher without having to establish voice contact.  For example, the following assignments may be made:

- 01 "On Call"
- 02 "At Destination"
- 03 "Taking Lunch Break"

Display Zoom (N4 Only) In standby, the display shows all the relevant parameters, including Multicall and Status numbers, channel and volume level.  However, when entering Multicall or Status digits from the keypad, the display "zooms- in" to show the digits in a large size, giving easier operation.

Hand Held Control Mic (N3 Only) Enables convenient one-hand operation of all the radio functions.
Standard Features - All Models

Emergency Operation Enhanced operation for your personnel in an emergency situation.
- Single button press to initiate emergency operation
- Hands-free transmit/receive
- 'Wake up' - emergency works even if radio is turned off! 
-'Secret' emergency - Secondary microphone source

Stun/Unstun Ability to totally disable the radio over-the-air, leaving it inoperable until the 'unstun' signal is sent, rendering stolen radios unusable.

Authorization This feature improves the discipline of your mobile radio operators by requiring them to request and receive transmit authorization from the central dispatcher.  The request is made by pressing a dedicated call button on the GM950 mobile.

Cleardown This feature (also called Remote Squelch Close) prevents the mobile operator from hearing messages intended for other users of the system.  This function also enables the GM950 to be programmed for 'C-Tone Squelch Reset' as required to operate with some non-Motorola systems.

Auto Acknowledge This feature increases the efficiency of 5 tone systems by letting radio users know immediately whether their call has been received.

Call Back Allows you to return a call using a single button, greatly simplifying radio operation especially in systems using Multicall. 

Scan The GM950 supports up to 2 scan lists.  These scan lists are dealer programmable, however, end-users may temporarily delete unwanted channels from the list using a 'nuisance channel delete' function button.

Busy Channel Lockout This feature greatly enhances the effectiveness of your mobile communications by preventing user groups with different PL/DPL codes from transmitting over each other.

Programmable Function Buttons Six of the radio buttons are programmable.  This means that the functions which you consider to be the most useful can be assigned to specific buttons.

Call Forward Allows calls to be re-routed to a portable radio or pager while  the operator is working away from the vehicle.

External Alert This feature enables the vehicle's horn or headlights to be activated when a call is received.  This is important for operators who often work outside, but near to, their vehicles.
Repeater Talkaround Causes the radio to use the same frequency for receive and transmit (simplex operation), allowing communication to continue in the event of repeater failure.

Accessories DIN Mounting Bracket (N2, N3) Allows the GM950 to be installed in a spare mounting slot often provided in vehicles.

Remote Mount Kit (N2, N3, N4) Allows the control head to be mounted on the dashboard where the radio unit is installed elsewhere (e.g. in the vehicle’s trunk).  This overcomes the problem of restricted space and reduces the risk of the radio being stolen.
Desktop Operation (N2, N3, N4).  The GM950 may be mounted in a free-standing tray and used in conjunction with a desktop microphone. Suitable for dispatch operations.

Audio Accessories (N2, N3, N4)

External Loudspeaker A high power 13W speaker for operating environments with high levels of background noise.

DTMF Microphone Enables communication between radio operators and the public or private telephone networks on systems equipped with telephone interconnect base stations.

Handset May be used in place of the standard palm microphone to provide enhanced privacy.
 
 
 

Accessory Connector Provides the necessary inputs and outputs to interface with a wide variety of external system accessories such as data modems:

• Flat Tx/Rx audio
• Carrier or PL/DPL detect
• Binary channel steering inputs
• PTT and hook
• RSSI signal level
• External call button
• External alert (triggered by 5 tone decode)

Parameters	Motorola GM950
Output Power	5-25 W
Frequency Range	VHF: 66-88 MHZ VHF: 136-174 MHz  UHF: 403-470 MHz
Dimensions: H x W x D (mm)	44x168x160 mm  55x185x167mm (N4)
Weight	1030 g
Channels	4/128
Operation	Fully Synthesized Simplex and/or Semi Duplex
Channel Spacing	12.5 or 20/25 kHz
Antenna Connection	50 ohm BNC
Power Supply	10.8 to 15.6V DC
Compliance	IEC 68/2/27, IEC 28/2/6,MIL STD 810E, ETS 300-086, ETS 300-113, ETS 300-279, ETS 300-219
Operational Temperature	-25oC to +55oC
Storage Temperature	-40oC to +85oC
Audio Output	4 W (internal speaker); 13 W external