Motorola Gm300 Selling Manual

							Channels2-3
On the GM360 and GM380 there are several methods to change channel:

Use the up / down scroll buttons. If the buttons are held down, the radio will fast scroll
through the channels.

Enter the channel number directly on the keypad on the GM380, or on the SMART mic on
the GM360.

Press a Memory Channel button.
With direct entry from the keypad, the menu select button (tick) must be pressed before the radio
goes to the new channel. If the selected channel is invalid (including wrong number of digits), an
error tone is sounded, and the radio returns to the Channel menu option.
Benefits

Different methods of channel selection to suit the user.

Fast scroll, direct keypad entry and Memory Channel all facilitate fast channel selection.
3.4 Memory Channel
On the GM360 and GM380, up to two of the programmable function buttons can be programmed as
Memory Channel. A Memory Channel button has a specific channel assigned to it. A short press of
the button will take the radio direct to that channel without having to use the channel scroll buttons or
keypad.
Memory Channel buttons avoid the hassle of scrolling through all the channels programmed into the
radio; they jump straight to a predefined channel.
Memory Channel buttons can be fixed or user programmable. If the Memory Channel buttons are
user programmable, a long press of the button changes the channel assigned to the button to the
one that radio is on at the time. This allows the user to redefine the channels if a particular channel
is more frequently used.
User programmed Memory Channels are remembered when the radio is turned off.
Benefits

Fast Access to Important Channels

User Programmable for day to day operations
3.5 Repeater/Talkaround
Repeater channels use fixed base equipment to increase the range of the radios signal. Sometimes
a repeater is used to interface users to telephone interconnect equipment or other system features.
Talkaround frequencies are used between radios within close range of each other when there is no
repeater, the repeater is not operating or communications off a system repeater is desired.
A programmable button can be programmed as a Repeater/Talkaround select. On a Repeater
channel that has “Talkaround” enabled, the programmable button toggles the channel between
repeater and talkaround frequencies.
Benefits

Provides direct (radio-radio) operation.

Allows operation out of repeater range.

Continued communication even when parts of the system are taken out of service for
maintenance. 
						

							2-4FEATURES AND BENEFITS
3.6 Dual Power Levels
Two transmitter power levels are available (high or low) on a radio wide basis. Once the power levels
are set in the CPS, each channel can be configured as a high power or low power channel.
The two levels are easy for the service shop to set up - simply type in the absolute power level
required (e.g.: “5” for 5 watts, or “15” for 15 watts) and the radio automatically provides this power on
the relevant channel. These power levels can be copied from one radio (or archive file) to another
radio, significantly reducing workshop time when selling a large fleet of radios.
The power level on a channel can be toggled via a programmable button or the menu.
Benefits

Power programmable per channel.

Low power reduces air way interference and congestion.

High power allows the radio to transmit over a greater distance.
4.0 Features
4.1 Programmable Buttons
The GM300 Series Professional Series mobiles have CPS programmable buttons. They can be
programmed with a wide range of features that are available in the radio. The most commonly used
features can be programmed to these buttons, thereby customising the radios to the individual
customers’ needs.
The GM340 has 6 programmable buttons. However, channel selection must also be assigned to
these programmable buttons. Thus, the number of buttons left to assign to features is 6 minus the
number of channels
The GM360 has 4 programmable buttons. If the SMART mic is used, the 3 programmable buttons
on that can also be used, giving a total of 7 programmable buttons.
The GM380 has 7 programmable buttons. If the SMART mic is used, the 3 programmable buttons
(A, B and C) are programmed in parallel to the F1, F2 and F3 buttons on the radio.
4.1.1 Exchangeable Buttons
Some of the programmable buttons on the radios are exchangeable. They can be removed and
replaced with buttons showing icons that represent the function programmed to them. This improves
the ease of use for the user as the buttons show representative icons for the programming.
P1 and P2 on the GM340, and P1 to P4 on the GM360 and GM380 are exchangeable.
Benefits

Most frequently used features are available on a button press.

Exchangeable buttons make user identification of programmable buttons very easy. 
						

							Features2-5
Ta b l e 2 - 2Exchangeable Buttons
Feature
Icon Description Button Type GM340 GM360 GM380
Channel Direct entry in to Channel menu Direct entry

Memory Channel 1 M1 Direct entry to Memory Channel 1 Direct entry

Memory Channel 2 M2 Direct entry to Memory Channel 2 Direct entry

Status List S Direct entry in to Status List menu Direct entry
Contact List Direct entry in to Contact List menu Direct entry

Missed CallsQDirect entry in to Missed Calls menu Direct entry

Call1 Call 1 Sends out Call 1 telegram initiate
Call 2 Call 2 Sends out Call 2 telegram initiate
Call 3 Call 3 Sends out Call 3 telegram initiate

Call 4 Call 4 Sends out Call 4 telegram initiate

Base Call Call button specific to call
base / dispatcherinitiate
Emergency orange
buttonPuts radio into Emergency mode initiate
DTMFDPuts radio into permanent DTMF Live Dial
modeinitiate

Monitor/CancelCToggles radio between Monitor 1 / 2
mode, and normal squelch mode.toggle
TalkaroundJToggles radio between Talkaround and
Repeater operationtoggle
Pow er l evelBToggles radio power between high and
lowtoggle
ScanGSwitches Scan feature on/off toggle
Lone Worker Switches Lone Worker feature on/off toggle
External alarmbSwitches External Alarm feature on/off toggle
Call Forward Fwd Switches Call Forward feature on/off toggle
Keypad Lock Locks/Unlocks Keypad and menu buttons toggle

Option BoardNSwitches Option Board feature on/off toggle
CompandingASwitches Xpand feature on/off toggle
Backlight Switches Backlight on/off toggle

Play/Record To Play / Record messages on voice stor-
age option boardinitiate
Nuisance Delete C Deletes nuisance channel from scan list initiate
Cancel C Cancels / deletes messages from Voice
Storage featureinitiate
Nuisance Delete /
CancelC Combines Nuisance Delete and Cancel initiate
Other Exchangeable Buttons Available
PersonalityP
DataD
Voice Message
Absent A
LLE LLE
Clear/CodedL 
						

							2-6FEATURES AND BENEFITS
4.2 Default Settings
The display, up / down buttons and keypad can be programmed to start up in different modes. This
allows the radio to be configured to provide the most user friendly operation.
4.2.1 Default Display Mode (GM360/GM380)
When the display is in the idle state, it displays the default display. This can be programmed to be:

Text up to 14 characters long;

Channel on GM360;

Channel, Status and Address on GM380.
4.2.2 Default Up / Down Button Mode (GM360/GM380)
The default function of the up / down navigation buttons can be programmed to be:

Channel;

Address;

Status.
4.2.3 Default Keypad Mode (GM360 with SMART mic, GM380)
The default function of the keypad can be programmed to be:

Channel;

Address;

Status.
Benefits

Default settings allow the most frequently used function(s) to be programmed to up / down
and/or keypad, thus customising the radio for optimum performance. This saves the radio
user’s time.
4.3 Address, Status and Channel Entry (GM360, GM380)
The Address, Status and Channel can be entered immediately on the up /down buttons or the
keypad, if they are set up as the default modes. If they are not the default modes, the Address,
Status and Channel entry menus can be selected through the menu navigation buttons or
programmable buttons programmed to provide direct entry to the appropriate menu.
Once in the entry menu, the selected feature can be:

Incremented or decremented by the up / down menu navigation buttons;

Entered directly on the keypad (GM360 with SMART mic, GM380).
After a period of inactivity (10 seconds) or an item is selected, the radio returns to its default modes.
Benefits

Keypad direct entry of the Address, Status and Channel digits allows fast selection.

Programmable buttons allow rapid change between entry functions.

Both these make the radio quicker to use and save the radio user’s time. 
						

							Features2-7
4.4 Power Up Channel
The radio can be programmed to power up on a pre-defined channel or the last used channel.
Benefits

Designated Power Up Channel avoids missing first messages
4.5 Power Up Logic
Theradiocanbepoweredupby:

Pressing the on/off switch;

Asserting the ignition line (GPIO pin 10). If ignition sense is enabled on the radio and the
vehicle’s ignition is connected to the accessory connector, the radio will automatically turn
on whenever the vehicle ignition is turned on;

Asserting the emergency wake up line (GPIO pin 9). If emergency with wake up is enabled
on the radio and an emergency switch is connected to the accessory connector, the radio
automatically turns on in emergency mode whenever the emergency switch is pressed.
Emergency wake up takes priority over the other power up mode.
Benefits

Ignition power up caters for users where auto power-up is required, for example, Fire Engines.
4.6 Power Off Logic
The ability to turn the radio off is dependant on:

Its turn on method

The state of the ignition line

Whether “ignition override” is enabled

Whether it is in emergency mode

Whether “ON/OFF in emergency” is enabled
If the radio is turned ON via the ON/OFF switch, it can only be turned OFF via the ON/OFF switch.
However, ifIgnition Overrideis enabled, the ignition line must be de-asserted (ie the vehicle turned
off) before the radio can be turned off via the ON/OFF switch.
If the radio is turned ON via the ignition, it can be turned OFF via the ignition or the ON/OFF switch.
However, ifIgnition Overrideis enabled, the radio can only be turned off via the ignition.
If the radio is turned on via the emergency wake up, andON/OFF in emergencyis disabled, the
radio cannot be turned OFF.
If the radio is turned on via the emergency wake up, andON/OFF in emergencyis enabled, the
radio will follow the turn OFF rules as if it had been turned ON via the ON/OFF switch.
The Power OFF logic is shown in the tables below: 
						

							2-8FEATURES AND BENEFITS
Benefits

The radio can only be turned OFF in specified conditions.

ON/OFF in Emergency prevents the radio from being turned OFF by mistake or by attacker.Radio turned ON via ON/OFF button Possible Actions
Press ON/OFF De-assert Ignition Line
Start State Effect on radio
Ignition Override Ignition line
Disabled Asserted Switch OFF Stay ON
Disabled Not asserted Switch OFF -
Enabled Asserted Stay ON Stay ON
Enabled Not Asserted Switch OFF -
Radio turned ON via Ignition Possible Actions
Press ON/OFF De-assert Ignition Line
Start State Effect on radio
Ignition Override
Disabled Switch OFF Switch OFF
Enabled Stay ON Switch OFF
Radio turned ON via Emergency Possible Actions
Press ON/OFF De-assert Ignition Line
Start State Effect on radio
ON/OFF in
EmergencyIgnition Override Ignition line
Disabled Disabled Asser ted Stay ON Stay ON
Disabled Disabled Not asserted Stay ON -
Disabled Enabled Asser ted Stay ON Stay ON
Disabled Enabled Not Asserted Stay ON -
Enabled Disabled Asserted Switch OFF Stay ON
Enabled Disabled Not asserted Switch OFF -
Enabled Enabled Asser ted Stay ON Stay ON
Enabled Enabled Not Asserted Switch OFF - 
						

							Features2-9
4.7 Power Off Memory
Certain features are remembered when the radio is turned off, and reinstated when the radio is
turned on.

Channel - (unless there is a designated power up channel)

Last selected Address

Last selected Status

Last stored Memory Channel

Backlight ON/OFF

Keypad Tones ON/OFF

Keyp ad lock ON/OFF

Escalert ON/OFF

Voice messages

Stun state
Benefits

Operational Parameters are not lost when the radio is turned off.
4.8 VOX
Whenever the user speaks into the microphone the radio automatically goes into transmit mode; this
is the equivalent of pressing the PTT.
With various audio threshold levels and tolerances programmed into the radio, the VOX feature
intelligently senses background noise, resulting in VOX adapting automatically to the noise level in
the environment by setting the microphone input to key up the radio.
The microphone sensitivity can be adjusted to take account of the background noise.
VOX operation is only possible when a special VOX accessory is fitted to the accessory connector of
the mobile.
Benefits

Hands free radio operation.

Drivers can talk without having to take their hand off the steering wheel, or look away from the
road.

Passengers do not have to stop, put down their work tools and pick up the radio when making
and receiving a call - this increases productivity.

VOX operation automatically adapts to any noise level. 
						

							2-10FEATURES AND BENEFITS
5.0 Scan Operation
5.1 Scanning
Scanning allows activity on different communication channels to be monitored. Each radio can be
programmed with up to 32 scan lists, and each scan list can contain up to sixteen channels which
are listened to sequentially.
Once scan has started, detection of an incoming call causes the radio to automatically switch to the
channel so that the call can be received and scan temporarily stops: this is called the “landed” state.
Benefits

Efficient communication - incoming calls are not missed even when they can be received from
more than one communication channel.

Simplifies the radio operation for users of multiple communication channels.
5.1.1 Single Priority Scan
Each list can specify a “Priority” channel that is monitored for activity more often, even when the
radio is “landed” and listening to another channel in the scan list. If the correct unmute condition is
detected on the priority channel when the radio has ‘landed on’ another channel, the priority alert
will sound and it will switch to the priority channel to take the call.
5.1.2 Scan Activation
Each channel can be programmed to use any of the scan lists. Scan is activated by:

pressing a programmable button that has been programmed as the Scan button;

selecting scan via the menu;

changing to a channel which has been programmed with“Automatically Start Scan”:-
this starts scan operation as soon as the radio switches to that channel, i.e. Auto Scan.
5.1.3 Scan Transmit Channel and Talkback
When the radio is not in the landed state (i.e. it is actively scanning, looking for valid channel
activity), pressing the PTT causes the radio to change to the defined “Scan Transmit Channel”,
where it remains for the duration of the two-way conversation, after which active scanning resumes.
The Scan Transmit Channel choices are:

Scan Start Channel

Designated Channel

Last Free Channel

Last Busy Channel

Voted Channel
“Talkback” mode allows the user to respond directly to messages received on “landed” channels, as
long as the response begins during the programmable scan hang timer (called the listen “Scan
Reset” Timer). If Talkback is disabled, pressing the PTT when in the landed state causes the radio
to change to the defined “Scan Transmit Channel”. Talkback has no impact when the radio is
actively scanning - it only has an impact on the radio’s operation in the landed state. 
						

							Scan Operation2-11
Scan Start Channel (home channel):
Causes the transmission to occur on the original channel that the radio was on, when scan
operation was started. Talkback can be enabled or disabled.
Designated Channel:
Causes transmissions to occur on a designated, pre-programmed channel. Again Talkback can be
enabled or disabled.
Last Busy Channel:
Causes transmissions to occur on the channel that was the most recently “landed” on (i.e.: busy).
Talkback can be enabled or disabled.
Last Free Channel:
Causes transmissions to occur on the channel that was most recently detected as being free of
activity. The last free channel is updated each time the scan list is gone through, to ensure that the
last free channel remembered by the radio was very recently free. When the PTT is pressed this
avoids, as far as possible, sending the radio to a channel that is now busy. Talkback can be enabled
or disabled.
Voted Channel:
Causes transmissions to occur on the last voted channel. See the section on Scan Vote.
The radio’s display indicates the channel on which transmission will occur or is occurring, depending
on the operational mode in use.
Benefits

Calls can be initiated even whilst scanning.

Auto Scan simplifies scan operation, and frees up a function button.

Highly flexible - tailor to match specific user requirements.

The most important channel can be scanned more frequently than other channels and even
when landed on another channel.
Scan TX
ModeChannel to transmit on, or to suspend scan on, if taken off-hook
During Active
ScanLanded,
Talkback disabledLanded,
Talkback enabled
Scan Start
ChannelHome Home Landed
Designated Designated Designated Landed
Last Busy Last Landed Landed Landed
Last Free Last Free or
invalid if noneLanded Landed
Voted Voted Voted Landed
NOTE
In order to have the radio “power-up” into scan mode, the power-up channel should
be defined, and be set to an “Auto Scan Start” channel. 
						

							2-12FEATURES AND BENEFITS
5.2 Nuisance Channel Delete
Nuisance Channel Delete allows channels which continually generate unwanted calls or noise to be
temporarily removed from the scan list. The priority channel, last channel in the scan list and home
channel cannot be deleted.
A programmable button must be set up as nuisance channel delete. Deleted channels can be
recovered by turning the radio or scan off and back on again.
Benefits

Nuisance Channels can be temporarily removed from the scan list by the user.

Efficient radio operation as the radio just listens to channels where valid calls will be received.
5.3 Carrier Squelch Scan
Carrier Squelch Scan allows the user to hear all activity on the scan list channels; the radio does not
check PL/DPL or tone signalling. Scanning just for carrier is the fastest scan method.
5.4 Scan Vote
Scan Vote mode is used in multi-frequency simulcast systems that provide wide area repeater
coverage in applications where frequency spectrum is readily available. The typical system has a
set of scattered base sites that are transmitting the same information on different frequencies. The
radios scan the frequencies of these base sites and perform a voting algorithm to select the
strongest base site. The radio’s transmit frequency is typically the same on every channel, but the
radio’s receive frequencies are different.
The voting algorithm is described in the CPS help text.
6.0 Transmit Features
6.1 Transmit Time-Out Timer (TOT)
The Transmit Time Out Timer limits the duration of calls by cutting off transmission after a
pre-programmed time.
TOT can be implemented in order to enforce efficient use of air time. Also in vehicular operations, a
microphone can accidentally be lodged between seats or other objects and accidentally become
continuously keyed. This would deny other users from using the channel. TOT automatically ends
the call and frees up the channel.
The TOT can be

non-cumulative: the TOT returns to zero each time the radio is de-keyed;

cumulative: the TOT adds all transmission times since the call started. The TOT returns
to zero when the call ends (auto reset timer expires or is cancelled).
A“TOT Pre-Aler t” can be programmed to sound five seconds before the transmission is cut off, to
warn the user to finish the conversation.