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27

GE-MARC OPERATION

SENDING A CALL, Continued

A sequence of five beeps will sound if the radio cannot access a
channel due to being out of range of the GE-MARC system or
an inoperative radio. Any subsequent call requests will be
ignored for 20 seconds. However, if the area is changed, a call
request may be initiated in the new area.

NOTE:

 If the call retry option has been programmed and is

active, the radio will automatically try to acquire a channel
at 20 second intervals for five minutes before returning to the
normal area and group display.
When the channel has been acquired, the red TX indicator
lights and the BUSY icon will appear. If programmed, the
clear to talk tone will sound.
Hold the microphone about 3 inches from your mouth and
speak normally into the microphone. Release the P-T-T button
to listen for a reply.

Sending A Special Call

Press the 

SPC

 button to place the radio into the special call

mode and access a pre-programmed alphanumeric list of
individual call or interconnect numbers. If programmed, the
special call alphanumeric list will be displayed. The PHONE
and

 icon will be displayed.

Use the 

!

 or 

#

 button to scroll through the special call list.

Once the desired individual / interconnect call number is
displayed, press and hold the P-T-T button to initiate the call.
The radio performs the necessary signaling required to obtain
a working channel.

#

Summary of Contents for EM-4800

Page 1: ...Model EM 4800 800 MHz EDACS GE MARC Mobile Radio Operating Instructions...

Page 2: ...s now are exempt from indi vidual licensing requirements but may be operated in a licensed system Consult your Maxon Dealer regarding specific licensing infor mation Form 571 or contact the Federal Co...

Page 3: ...Indicators 9 Display Messages 10 Alert Tones 10 EDACS Operation Turning On the Radio 13 Receiving a Call 13 Sending a Call 15 SCAT Operation 16 Conventional Failsoft 17 Scan Operation 17 DTMF Micropho...

Page 4: ...ssage 37 Receiving a Message 37 Squelch Adjustment 37 Sending a Manually Entered Interconnect Call Using the Optional DTMF Microphone 38 Scan Operation 39 Maintenance and Basic Care 42 Operator s Radi...

Page 5: ...n from radio frequency energy present when trans mitting If the vehicle contains such equipment consult the dealer for the make of vehicle and enlist his aid in determining if such electronic circuits...

Page 6: ...dio installations in vehicles powered by liquefied petroleum gas with the LP gas container in the trunk or other sealed off space within the interior of the vehicle must conform to the National Fire P...

Page 7: ...its cradle whenever the vehicle is in motion Place calls only when the vehicle is stopped Use recall dialing to speed the time it takes to place a call When talking from a moving vehicle is unavoidabl...

Page 8: ...telephone party line always listen to make sure that the line is clear before sending messages If someone is sending an emergency message such as reporting a fire or asking for help in an accident KE...

Page 9: ...all letters 8 No changes or adjustments shall be made to the equip ment except by an authorized or certified electronics technician OPERATING TIPS Operating the radio in low areas of terrain or while...

Page 10: ...unication channels In the conventional mode the user selects a channel and communicates directly on that channel A system refers to a set of channels A channel is a transmit receive radio frequency pa...

Page 11: ...aN button c Liquid Crystal Display LCD h SYStem select button d HOMe button i Up Down control e SPeCial call button j Microphone connector The radio s LCD provides seven alphanumeric characters to sho...

Page 12: ...s scan operation on and off also provides lockout of a selected group or channel from the scan list when used with the SYS button CLEAR BUTTON When in the EDACS or GE MARC radio system the CLeaR butto...

Page 13: ...sed When displayed the keypad is locked on the DTMF microphone to prevent accidental transmission BUSY Indicates when the radio receives a call when a conventional channel is in use or when transmitti...

Page 14: ...ons will be in conventional mode PROGRAM Indicates radio is in the programming mode SYN LOC Indicates that the synthesizer is unable to load and lock on the channel properly ALERT TONES The radio gene...

Page 15: ...t gives up trying to place the call The system may be off the air or the radio may require servicing if the radio is within the calling range and these tones are heard GE MARC Five beeps will sound sh...

Page 16: ...TONES Available System A short low pitched tone indicates the radio is attempting to connect to the first available repeater A 2 second high pitched pulsing tone indicates when a repeater is availabl...

Page 17: ...ode opera tions The radio will automatically transmit a log in message when turned on or whenever the radio roams into a new system when changing the group selection This log in message includes the l...

Page 18: ...er in the display press the SPC button to display caller s ID then press P T T and begin talking Group Call When the radio receives a group call it unsquelches on the assigned channel and the BUSY ico...

Page 19: ...icon is displayed If programmed the clear to talk tone will sound Hold the microphone about 3 inches from your mouth and speak normally into the microphone Release the P T T button to listen for a rep...

Page 20: ...cannot be received when the P T T button ispressed If the signaling is unsuccessful the radio will remain in the special call mode and sound the appropriate alert tone s To return to the normal syste...

Page 21: ...e to select a communications channel or use emergency and special call features When trunking is restored the radio will automatically be returned to normal operation SCAN OPERATION Group Scan Only gr...

Page 22: ...tton The SCAN icon will disappear from the display Add Delete Groups Groups can be added or deleted from the scan list as needed Scan must be disabled to add delete a group on the scan list To add gro...

Page 23: ...dividual and interconnect calls user storage of individual and interconnect numbers recall of user stored individual and interconnect numbers and enable disable of keypress alert tones The following p...

Page 24: ...o will remain in the special call mode and sound the appropriate alert tone s When the call is completed press CLR button once to return to normal operation PHONE and will disappear Key press SPC Radi...

Page 25: ...he BUSY icon is displayed and the proper DTMF tones will be sent and heard at the speaker If the signaling is unsuccessful the radio will remain in the special call mode and sound the appropriate aler...

Page 26: ...igit between 0 and 9 to select a storage location A tone will sound after entry to confirm button press There are 10 storage locations for individual numbers and 10 storage locations for interconnect...

Page 27: ...the interconnect call list the last seven digits of the telephone will be displayed If the memory location is blank the radio will sound a low pitched tone after the 9RCL key is pressed Once the desir...

Page 28: ...meone answers press the P T T and speak directly into the microphone Release the P T T to listen for a reply When the call is completed press the CLR button once to exit the special call mode and retu...

Page 29: ...scroll to the desired group Only groups programmed can be selected The radio is now ready to receive calls NOTE To move quickly through area system or group selec tions Individual Call If an individua...

Page 30: ...ived tones one high pitched tone followed by one low pitched tone will sound The PHONE and icon will be displayed Press the P T T button and begin talking SENDING A CALL Turn the radio on and select t...

Page 31: ...red TX indicator lights and the BUSY icon will appear If programmed the clear to talk tone will sound Hold the microphone about 3 inches from your mouth and speak normally into the microphone Release...

Page 32: ...elease the P T T button to listen for a reply Messages cannot be received when the P T T button is pressed If the signaling is unsuccessful the radio will remain in the special call mode and sound the...

Page 33: ...eading character scrolling off the display upon each new entry NOTE To recall the last manually entered number press the 9RCL key Complete the entry by pressing IND This indicates the digits are for a...

Page 34: ...no special call list is programmed for this area PHONE and icon will appear Enter the telephone number to be called The last digit entered will always be displayed in the far right side Any previousl...

Page 35: ...ess the P T T and speak directly into the microphone Release the P T T to listen for a reply When the call is completed press the CLR button to return to normal operation PHONE and icon will disappear...

Page 36: ...will scroll left Only the last seven characters will be visible at a time with the leading character scrolling off the display upon each new entry Complete the entry by pressing the IND key for indiv...

Page 37: ...press recall place intercon call conference call mode 7 PHN 0 9RCL 9RCL P T T Press the SPC button to place the radio into the special call mode Press the IND button to recall the individual call lis...

Page 38: ...will be sent and heard in the speaker When someone answers press the P T T and speak directly into the microphone Release the P T T to listen for a reply When the call is completed press the SPC butto...

Page 39: ...eted from the scan list as desired NOTE Scan must be disabled to add or delete a Group on the scan list To add groups Select the desired group to be added Press the SYS button then press SCN The icon...

Page 40: ...stem The SYS display will indicate the current system selected Press CLR to disable squelch and monitor the channel Adjust the volume control to the desired audio level Press the P T T and send the me...

Page 41: ...med systems can be selected Select the desired channel by pressing the or button to scroll through the channel selections Only programmed channels can be selected Press the CLR button to disable squel...

Page 42: ...as telephone interconnect capability The radio should be programmed for DTMF operation on this channel Press and hold the P T T to key the transmitter While holding the P T T press either the PHN or I...

Page 43: ...ion of PC programmable scan features Scan Hang Time The delay of time the radio waits before resuming scan after P T T is released or after the carrier has dropped a channel TX Select The channel the...

Page 44: ...then press SCN The icon will turn off and the group will be removed from the scan list The Selected Channel The selected channel is the channel in the display when scan is activated When a signal is...

Page 45: ...Transmitter operation in scan is determined by the program ming of the radio s personality Off hook scan not enabled default With off hook scan disabled normal default condition all scanning will stop...

Page 46: ...receiving a channel the radio always transmits on the selected channel When the radio is receiving a channel the radio s personality can be programmed to transmit either on the received channel or the...

Page 47: ...al supply stores If however the trouble persists the radio continues to blow fuses or remains inoperative check with the radio supplier Radio power red lead 10 Amp fast blow fuse Type AGC15 JUMP START...

Page 48: ...44 OPERATOR S RADIO SETUP Radio Type Frequency Band Operator s Name SYSTEM SYSTEM TRUNKED T GRP CHAN GRP CHAN NUMBER NAME or CONV C NUMBER NAME...

Page 49: ...gation to make repairs or to cause replacement required with result from normal wear and tear or necessitated in whole or in part by catastrophe the fault or negligence of the user improper or unautho...

Page 50: ...Maxon America Inc Business Radio Division 10828 NW Air World Drive Kansas City Missouri 64153 Telephone 816 891 6320 Fax 816 891 8815 U S P N 680 090 2008 Printed in Korea...

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