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MM-014763-001, Rev. E

55

8.3 CONTROL HEAD INSTALLATION

8.3.1

General Information

The remote-mount M7300 mobile radio must be connected to a control head to provide the operator-to-
radio interface. Two different control heads are available — the CH-721 Scan model and the CH-721
System model. See Figure 8-5 and Figure 8-6 respectively. The CH-721 Scan model control head features
three (3) large menu selection buttons. The System model control head has a 12-button keypad to allow
advanced operations without the need of a DTMF-capable microphone.

Figure 8-7 on page 56 illustrates the rear panel of the two control head models. Both models have
identical rear panels and rear panel connectors.

Figure 8-5: CH-721 Scan Model Control Head Front Panel

(Other controls are same as shown for Scan model.)

Figure 8-6: CH-721 System Model Control Head Front Panel

The CH-721 control heads feature a large easy-to-read 3-line graphical vacuum fluorescent display, an
on/off/volume control knob, menu controls and buttons, trunking mode buttons, an emergency/home
button, a scan on/off button, and three (3) preset buttons. Other front panel components include a
microphone connector and LED-type indictors. One LED indicator is the busy indicator that lights when

3-Line Graphical Vacuum
Fluorescent Display

Microphone Connector

On/Off/

Volume

Control

System/-

Group/-

Channel

Selection

Control



/



Ramp Control

Preset/

Softkey

Buttons

Emergency/
Home Button

+/- Ramp Control

Ambient Light-Level Sensor

Transmit

and Busy

Indicators

Scan On/Off Button

Clear Button

Menu Button

Option Button

12-Button Keypad

Clear Button

Menu Button

Option Button

«
...
53
54
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57
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»

Summary of Contents for M7300 Series

Page 1: ...Installation and Product Safety Manual MM 014763 001 Rev E Sep 09 M7300 Mobile Radio VHF and 700 800 MHz Front and Remote Mount Mobile Radios with CH 721 Scan and System Control Heads ...

Page 2: ...l other brand and product names are trademarks registered trademarks or service marks of their respective holders NOTICE Information and descriptions contained herein are the property of Harris Corporation Such information and descriptions may not be copied or reproduced by any means or disseminated or distributed without the express prior written permission of Harris Corporation PS PC Division 22...

Page 3: ...0 and 800 MHz M7300 Radio 16 3 1 3 General Information 16 3 2 RELATED PUBLICATIONS 19 3 3 REPLACEMENT PARTS 20 3 4 TECHNICAL ASSISTANCE 20 4 UNPACKING AND CHECKING THE EQUIPMENT 21 4 1 MATERIALS 21 4 2 MATERIAL INSPECTION 24 5 PLANNING THE INSTALLATION 26 5 1 GENERAL INFORMATION 26 5 2 TOOLS REQUIRED 26 5 3 LOCATING COMPONENTS 29 6 ANTENNA INSTALLATION 30 6 1 ANTENNA MOUNTING LOCATIONS 30 6 1 1 Di...

Page 4: ...0 9 SPEAKER INSTALLATION 64 9 1 FRONT MOUNT RADIO INSTALLATION 64 9 2 REMOTE MOUNT RADIO INSTALLATION 64 10 MICROPHONE ATTACHMENT 65 11 OPTIONAL CABLES 66 11 1 M5300 M7300 OPTION CABLE CA 012349 001 66 11 2 SERIAL PROGRAMMING CABLES CA 013671 010 AND 020 69 11 3 CH 721 OPTION CABLE CA 011854 001 70 11 4 CH 721 SERIAL PROGRAMMING CABLE CA 104861 71 12 GPS NMEA FORMATTED SERIAL DATA CONNECTION 72 13...

Page 5: ...ber KT 008608 57 Figure 8 9 Optional Control Head Mounting Pedestal Part Number MACDOS0012 57 Figure 8 10 CAN Link Connections for a Single Control Head Installation 59 Figure 8 11 Typical CAN Link Connections for a Multi Control Head Installation 59 Figure 10 1 Attaching the Microphone to the CH 721Control Head 65 Figure 11 1 M5300 M7300 Option Cable CA 012349 001 66 Figure 11 2 Serial Programmin...

Page 6: ...OL INFORMATION FOR FCC OCCUPATIONAL USE REQUIREMENTS Before using the two way mobile radio read this important RF energy awareness and control information and operational instructions to ensure compliance with RF exposure guidelines This radio is intended for use in occupational controlled conditions where users have full knowledge of their exposure and can exercise control over their exposure to ...

Page 7: ...nts 1 3 COMPLIANCE WITH RF EXPOSURE STANDARDS The M7300 two way mobile radio is designed and tested to comply with a number of national and international standards and guidelines regarding human exposure to RF electromagnetic energy This radio complies with the IEEE and ICNIRP exposure limits for occupational controlled RF exposure environment at duty cycle times of up to 50 50 transmit 50 receive...

Page 8: ...Magnetic Mount 0 dBd Gain 63 140 Driven elements of AN102800V1 and AN102800V2 must be trimmed to proper lengths in order to minimize antenna system VSWR 1 3 1 Mobile Antennas The antenna s for the radio must be installed in accordance with Section 6 in this manual Refer to Figure 6 1 on page 31 for applicable antenna part numbers Installation guidelines presented in Section 6 are limited to metal ...

Page 9: ...700 800 MHz Low Profile Rooftop Mount 2 dBd Gain 28 69 AN 025167 011 Cat No MAMW NAN5C 700 800 MHz GPS Combo Low Profile Rooftop Mount 2 dBd Gain 28 69 AN 025167 014 Cat No MAMW NAN5U 700 800 MHz Standard Rooftop Mount 5 dBd Gain 39 87 AN 025167 015 Cat No MAMW NAN5V 700 800 MHz GPS Combo Rooftop Mount 5 dBd Gain 39 87 AN 125001 002 mount with AN 225001 001 element 700 800 MHz Standard Rooftop Mou...

Page 10: ...otection from radio frequency RF energy present when transmitting If the vehicle contains such equipment consult the dealer for the make of vehicle and enlist his aid in determining if such electronic circuits perform normally when the radio is transmitting Electric Blasting Caps To prevent accidental detonation of electric blasting caps DO NOT use two way radios within 1000 feet 305 meters of bla...

Page 11: ... most efficient use of the existing radio channels and results in a smoothly functioning radio network When using a two way radio remember these rules It is a violation of FCC rules to interrupt any distress or emergency message The radio operates in much the same way as a telephone party line Therefore always listen to make sure the channel is clear before transmitting Emergency calls have priori...

Page 12: ...ATING TIPS The following conditions tend to reduce the effective range of two way radios and should be avoided whenever possible Operating the radio in areas of low terrain or while under power lines or bridges Obstructions such as mountains and buildings In areas where transmission or reception is poor communication improvement may sometimes be obtained by moving a few yards in another direction ...

Page 13: ...o 60 Celsius Storage Temperature Range 40 to 185 Fahrenheit 40 to 85 Celsius Altitude 15 000 feet 4572 meters maximum DC Supply Voltage Operating Range 13 6 Vdc 10 Normal range per TIA 603 DC Supply Current Requirements Receive includes control head With Speaker Muted 1 1 amps maximum With 0 5 Watt Speaker Output Power 1 5 amps maximum With 10 Watt Speaker Output Power 3 5 amps maximum With 15 Wat...

Page 14: ...t 5 BER static VHF EDACS Conventional Modes 119 dBm minimum at 12 dB SINAD 25 kHz channels 700 MHz OTP Mode 111 dBm minimum at 1 BER static 800 MHz OTP Mode 111 dBm minimum at 1 BER static 700 MHz P25 Mode TIA 102 Method 116 dBm minimum at 5 BER static 800 MHz P25 Mode TIA 102 Method 116 dBm minimum at 5 BER static 700 MHz EDACS Mode 119 dBm minimum at 12 dB SINAD 800 MHz EDACS Mode 118 dBm minimu...

Page 15: ... and Speaker D A Audio Conversion CODEC Audio Sampling Rate 8 kHz CODEC Algorithm Vocoding Method Sigma Delta Voice Coding Method OTP Mode Advanced Multi Band Excitation AMBE EDACS ProVoice and P25 Modes Improved Multi Band Excitation IMBE P25 Phase 1 Mode Advanced Multi Band Excitation Plus AMBE Data Rate OTP Mode 19 2 kbps 9600 symbols per second EDACS and ProVoice Modes 9 6 kbps P25 Mode 4800 s...

Page 16: ...Communications System EDACS trunked radio networks 800 MHz ProVoice trunked radio networks 800 MHz APCO Project 25 Phase I compliant Common Air Interface P25 CAI trunked radio networks 700 MHz talk around communications in accordance with the APCO Project 25 Phase I standard and Conventional FM repeater based and FM talk around voice communications in 700 and 800 MHz bands in accordance with the T...

Page 17: ...e control heads are interconnected to the mobile radio in a series daisy chain fashion via CAN link cables As shown in Figure 8 7 on page 56 the CH 721 Scan and System model control heads used in remote mount radio installations have several connectors located on the head s rear panel These connectors include a DC power connector two 2 CAN port connectors used for CAN link interconnections an exte...

Page 18: ... exceptional voice quality even in areas where the received RF signal strength is weak IMBE replicates human speech better than other voice compression technologies resulting in better voice quality and better speaker recognition The Telecommunications Industry Association TIA funded an independent study to evaluate compression technologies The findings showed that when compared with other industr...

Page 19: ...s MM 014369 001 Operator s Manual for all modes MM 014716 001 Maintenance Manual VHF MM 017065 001 Maintenance Manual 700 and 800 MHz MM 014718 001 Both quick guides are included with each mobile radio equipment package when it ships from the factory Operator manuals installation manuals maintenance manuals and quick guides are available at www rfcomm harris com publicsafety via a Wireless Informa...

Page 20: ...C_CustomerFocus harris com International Phone Number 1 434 455 6403 Fax Number 1 434 455 6676 E mail PSPC_InternationalCustomerFocus harris com 3 4 TECHNICAL ASSISTANCE Should the mobile radio or control head require repair or if there are questions or concerns about the installation of this equipment contact the Technical Assistance Center TAC using the following telephone numbers or e mail addr...

Page 21: ...7300 Mobile Radio for Front and Remote Mount Configurations MAMW NPL3V DES Encryption none 64 Bit Data Encryption Standard Option Option does not include radio MAMW NPL7M AES Encryption none 256 Bit Advanced Encryption Standard Option Option does not include radio MAMW SDMXA AES Encryption MAMW SDMXE DES Encryption MAMW SDMXX No Encryption RU 144750 061 700 800 MHz Dual Band Half Duplex M7300 Mobi...

Page 22: ...th CH 721 Control Head ITEM QTY PART NUMBER DESCRIPTION 1 1 KT23117 Kit Remote Mount Mobile Radio Mounting Bracket Includes M5300 M7100 M7300 Mounting Bracket FM103111V1 and M5 stainless steel hardware to attach radio to bracket See Figure 8 2 on page 46 2 1 KT 008608 Kit CH 721 Mounting Bracket Includes 1 U Shaped Mounting Bracket and 8 stainless steel hardware to attach control head to bracket 3...

Page 23: ... meter RG 58 A U or equivalent Low Loss RF Cable Male TNC and Mini UHF RF Connectors Factory Tuned AN 025167 004 Antenna 700 800 MHz GPS Combo Rooftop Mount 3 dBd Gain NMO Mounting Base 15 foot 4 6 meter RG 58 A U or equivalent Low Loss RF Cable Male TNC and Mini UHF RF Connectors 16 5 foot 5 meter RG174 U or equivalent GPS RF Cable with Male SMA RF Connector attached 2 7 to 3 3 Vdc or 4 8 to 5 2 ...

Page 24: ...Male TNC and Mini UHF RF Connectors Factory Tuned CA 012349 001 Cat No MAMW NCL8B Cable M5300 M7300 Option See page 66 CA 013671 010 Cable TIA EIA 232 Serial Programming 10 feet See page 69 CA 013671 020 Cable TIA EIA 232 Serial Programming 20 feet See page 69 CN 014756 Connector RF TNC Male Crimp Type for RG58U RG58A U and RGU400 Coaxial Cable KT 012350 001 Cat No MAMW NMK5F Kit GPS Receiver for ...

Page 25: ...s Pedestal Mount and Mounting Screws MACDOS0013 CN004 Kit Speaker 20 Watt Includes 6 Inch Cable MAMROS0034 NN006 Straight Connector MC 101616 040 Discontinued Replaced by MC 101616 041 Microphone Standard with Conxall Flush Mount 45 Degree Connector MC 101616 041 Microphone Standard with Conxall Flush Mount 90 Degree Connector Included with catalog number MAMW NMC7Z MC 103334 040 Microphone DTMF w...

Page 26: ... equivalent substitutes may be used Non Insulated Crimp Tool Thomas Betts WT 111 M Phillips Head Screwdrivers 1 and 2 Flat Blade Screwdrivers 1 and 2 Insulated Terminal Crimp Tool Klein 1005 4 Millimeter Hex Key Wrench Fuse Holder Crimp Tool Thomas Betts WT 112M or California Terminal Products No 1250 or Channelock No 909 Inch Hex Key Wrench Allen Wrench Two 5 16 Inch Combination or Open End Wrenc...

Page 27: ...USE 20 AMP FOR RADIO MOBILE ANTENNA GPS ANTENNA M7300 FRONT MOUNT MOBILE RADIO VEHICLE FUSE BOX GPS ANTENNA CABLE MOBILE ANTENNA CABLE Figure 5 1 Typical Front Mount Mobile Radio Installation in a Standard Passenger Vehicle Figure 5 2 Typical Remote Mount Mobile Radio Installation in a Standard Passenger Vehicle ...

Page 28: ...dio With Scan Control Head REAR VIEW Enlarged Figure 5 3 M7300 Front Mount and Remote Mount Mobile Radios Front and Rear Views CAN Port Connectors 2 places Antenna Connector female TNC DC Power Cable with 3 Pin Connector GPS Antenna Port optional 44 Pin I O Connector 9 Pin Serial Port Connector ...

Page 29: ...the radio and control head for cables Several inches of clearance space is required at the back of the control head and at least six 6 inches is recommended at the back of the radio In addition several inches of clearance space is required at each side of the radio for access to the screws that secure the radio to its mounting bracket When selecting a mounting location verify sufficient clearance ...

Page 30: ...ing mounted in the direct center of the roof In this case the antenna should be mounted a minimum of one foot away from and behind the obstruction but in the middle of the roof with respect to the left and right sides of the vehicle location in Figure 6 1 6 1 2 Center of Trunk Lid Certain vehicles do not allow for the antenna to be placed in the center or center rear of the roof In this case the n...

Page 31: ...011 700 800 MHz GPS Combo Low Profile Rooftop Mount 2 dBd Gain AN 025167 014 700 800 MHz Standard Rooftop Mount 5 dBd Gain AN 025167 015 700 800 MHz GPS Combo Rooftop Mount 5 dBd Gain AN 125001 002 mount with AN 225001 001 element 700 800 MHz Standard Rooftop Mount 3 dBd Gain AN 125001 002 mount with AN 225001 005 element 700 800 MHz Standard Rooftop Mount 5 dBd Gain AN 025187 001 GPS Receive Only...

Page 32: ...ntenna cable is connected to the radio s TNC receptacle type female RF connector per a procedure presented later in this manual The cable and its TNC connector must be protected from damage dirt and or metal shavings which may be generated during the mechanical and electrical installation of the radio Temporarily tying the connector and cable end within a small plastic bag is recommended 6 2 2 Ins...

Page 33: ... tie and stow excess cable as necessary 2 Route the cable from the antenna base to the location of where the radio will be installed Remove headliner panel interior panels etc as necessary The cable must be kept out of casual contact from persons within the vehicle Tie and stow it as necessary to protect it from possible chafing 3 The antenna cable is connected to the radio s SMA receptacle type f...

Page 34: ...acket the radio extends approximately 2 5 inches 6 4 centimeters from the front and rear edges of the bracket In the rear additional clearance must be included for cables The area directly at the front of the radio must be completely clear of all objects e g gear shift other radio equipment etc so the operator can easily access and visualize the radio s control head The mounting bracket must be at...

Page 35: ...3 001 Rev E 35 REAR VIEW TOP VIEW 10 5 inches 267 mm 2 38 inches 60 mm 2 0 inches 51 mm FRONT VIEW 6 9 inches 175 mm Partial View of DC Power Cable 0 8 inches 20 mm Figure 7 1 Front Mount M7300 Radio Dimensions ...

Page 36: ...limeter long self tapping screws are included in the Mounting Bracket Kit for this purpose However some other type of hardware not supplied may be used such as 10 32 stainless steel self locking hardware i e machine screws with washers and locking nuts or self drilling screws Self drilling screws such as TEK screws do not require drilling of a pilot hole prior to installation Do not use common sel...

Page 37: ...as the top of a transmission hump construct a suitable mounting wedge as necessary and attach the wedge to the surface using an approved attachment method Never mount the bracket directly to a non flat surface 4 On the mounting surface mark the selected location for the bracket and then remove the radio from the bracket 5 Clean and remove any foreign material from the mounting surface Bracket To V...

Page 38: ...o into the bracket at this time because several cable connections must be made at the rear of the radio 7 1 2 Inserting the Radio into the Mounting Bracket The radio should now be inserted into the mounting bracket according to this procedure 1 Lay the radio into the mounting bracket with the front of the radio facing in the correct direction usually towards the rear of the vehicle 2 Secure the ra...

Page 39: ...table The white wire of the radio s DC Power Cable must be connected to unswitched and fused vehicle power The required fuse rating is 3 amperes In all of the above cases the radio s main DC power input red wire must be connected through an in line fuse to unswitched vehicle DC power The red wire must be connected to raw battery power positive battery terminal via the supplied fuse CAUTION Any DC ...

Page 40: ... bar or stud Remove interior panels door kick panels etc and route the wire through existing channels in the vehicle body as necessary Protect the wire from possible chafing where necessary Tie and stow the wire as necessary CAUTION Plan the routing of the 10 AWG red wire carefully using an existing access hole in the vehicle s firewall if possible Alternately drill a new hole approximately inch i...

Page 41: ... 2 2 3 White Wire Connection A review of the information presented in Section 7 2 1 page 38 may be beneficial at this time As required per the chosen power up configuration connect the white wire by following one of the three procedures presented in the respective sub section that follows 7 2 2 3 1 Radio Turns On and Off with Vehicle s Ignition Switch Key With this wiring configuration the radio a...

Page 42: ... on the vehicle s dash panel When using this configuration the CH 721 control head s on off volume control must be left in the on position for automatic power up down to function properly 1 Route the white wire of the radio s DC Power Cable from the back of the radio to an area near the location of the panel mounted on off switch Protect the wire from possible chafing as necessary 2 Cut a short se...

Page 43: ...l located on the front panel of the control head In this configuration the white wire must be connected to unswitched and fused 12 volt vehicle power Follow the procedure presented in Section 7 2 2 3 1 except connect the white wire to unswitched battery power instead of switched Accessory power Be sure to fuse this connection with the provided in line fuse holder and 3 amp AGC fuse ...

Page 44: ... away from heat sources Mounting it in a location which is out of direct sunlight is recommended but not required Adequate ventilation space must be provided to the side fins The radio reduces its RF output power when its ambient temperature exceeds approximately 140 o Fahrenheit 60o Celsius At a minimum the mounting surface should be 16 guage approximately 1 16 inch thick steel sheet metal Mounti...

Page 45: ...3 001 Rev E 45 REAR VIEW FRONT VIEW 2 0 inches 51 mm 2 0 inches 51 mm 6 9 inches 175 mm 6 9 inches 175 mm TOP VIEW Partial View of DC Power Cable 9 2 inches 234 mm Figure 8 1 Remote Mount M7300 Radio Dimensions ...

Page 46: ...y recommended However inch stainless steel self drilling screws may be employed to speed installation time Self drilling screws such as TEK screws do not require drilling of a pilot hole prior to installation Do not use common self threading sheet metal screws because they will loosen over time with vehicle vibrations The bracket has four 4 available mounting holes All four must be used to secure ...

Page 47: ... could damage the radio and or cause its cable connections to loosen TOP VIEW SIDE VIEW Dimensions in Inches FRONT VIEW Dimensions in Inches Made From FM103111 Rev B Figure 8 3 Mounting Bracket FM103111V1 Dimensions for Remote Mount M7300 Mobile Radio Radio Not Shown Bracket To Vehicle Screw Holes 4 places Bracket To Radio Screw Holes 6 places 3 each side Rear of Bracket Front of Bracket ...

Page 48: ... off power state of the radio The white wire of the control head s DC Power Cable is connected to a fused switched power source typically identified as vehicle Accessory power This source must switch on up to positive battery voltage potential when the vehicle s ignition switch key turns on and it must switch off to near zero volts when the ignition switch key turns off The required fuse rating is...

Page 49: ...se Holder Installation The radio s DC Power Cable has a 3 pin connector a 20 foot red wire for the main power connection a 20 foot white wire only connected in a data only radio installation and a 4 foot black wire for the ground connection It is supplied with waterproof fuse holders two AGC type fuses and non insulated ring terminals The following installation procedures are recommended 8 2 2 1 B...

Page 50: ...passenger compartment this hole grommet wire combination must also be sealed with a silicon based sealer before completing the installation CAUTION Do not install any wiring or fuse holder over or in the near vicinity of the vehicle s engine Excessive engine heat can cause permanent damage to these components and can lead to intermittent electrical connection to the battery Before making connectio...

Page 51: ...rect directions i e with each large end towards the wire end 7 Label this fuse holder and red wire appropriately e g M7300 Main Power 15 AMP FUSE 8 Do NOT install a fuse into the fuse holder at this time 9 Crimp an appropriate electrical terminal to the short red wire A corrosion resistant inch ring terminal is included with the cable for this purpose but another size corrosion resistant terminal ...

Page 52: ...MM 014763 001 Rev E 52 RED RED RED WHITE RED Figure 8 4 Wiring Diagram for a Remote Mount Radio Installation ...

Page 53: ...MM 014763 001 Rev E 53 Figure 8 4 Wiring Diagram for a Remote Mount Radio Installation Cont ...

Page 54: ...where necessary Tie and stow the wire as necessary 2 Connect this white wire through a fuse to the switched power source in accordance with the instructions presented within the respective subsection of Section 8 3 4 2 page 61 for the control head s white wire Follow the procedure in Section 8 3 4 2 1 page 61 if the vehicle s ignition switch key must control the data only radio s on off power Foll...

Page 55: ...721 Scan Model Control Head Front Panel Other controls are same as shown for Scan model Figure 8 6 CH 721 System Model Control Head Front Panel The CH 721 control heads feature a large easy to read 3 line graphical vacuum fluorescent display an on off volume control knob menu controls and buttons trunking mode buttons an emergency home button a scan on off button and three 3 preset buttons Other f...

Page 56: ...lowing instructions make repeated reference to items within this kit Item numbers given in parenthesis refer to items in the kit as listed in Table 4 4 on page 22 In a mobile installation more than one control head can be connected to one mobile radio for multi head installations A multi head installation may be required in a vehicle such as a fire truck or any large vehicle where more than one op...

Page 57: ...ol Head Mounting Bracket Kit Part Number KT 008608 Figure 8 9 Optional Control Head Mounting Pedestal Part Number MACDOS0012 Mounting Bracket Shown positioned above control head Control Head Mounting Pedestal MACDOS0012 Pedestal can be attached to the bottom of the head as shown or it can be attached to the top of the head Bracket shown attached to a CH 721 System model control head Head is not in...

Page 58: ... Firm mounting prevents unreasonable vibration which could damage the control head and or cause its cable connections to loosen 5 Slide the control head into the bracket placing the two pegs protruding from its left and right sides into the respective round holes in the bracket s two side ears 6 In each side ear of the mounting bracket start a 8 32 hex socket head cap Allen head screw with a lockw...

Page 59: ...h ends via external CAN terminators as depicted in the following figures For Available CAN Cable Lengths and Respective Part Numbers see Table 4 6 on page 25 Figure 8 10 CAN Link Connections for a Single Control Head Installation For Available CAN Cable Lengths and Respective Part Numbers see Table 4 6 on page 25 Figure 8 11 Typical CAN Link Connections for a Multi Control Head Installation Both t...

Page 60: ...end of the cable to one of the two CAN port connectors on the rear panel of the radio 5 Mate another CAN Terminator to the other CAN port connector on the rear panel of the radio This action makes the CAN termination at the radio end of the CAN link 6 Loop tie and stow the excess cable as necessary leaving a service loop at the back of the radio and at the back of the control head 8 3 4 Control He...

Page 61: ...2 1 page 48 may be beneficial at this time As required per the chosen power up configuration connect the white wire by following one of the three procedures presented in the respective sub section that follows 8 3 4 2 1 Control Head and Radio Turn on with Vehicle s Ignition Switch Key With this wiring configuration the control head and radio automatically turn on and off with the vehicle s ignitio...

Page 62: ...h mounted on the vehicle s dash panel When using this configuration the CH 721 control head s on off volume control must be left in the on position for automatic power up down to function properly 14 Route the white wire of the control head s DC Power Cable from the back of the head to an area near the location of the panel mounted on off switch Protect the wire from possible chafing as necessary ...

Page 63: ...l located on the front panel of the control head In this configuration the control head s white wire must be connected to unswitched and fused 12 volt vehicle power Follow the procedure presented in Section 8 3 4 2 1 except connect the white wire to unswitched battery power instead of switched Accessory power Be sure to fuse this connection with the provided in line fuse holder and 3 amp AGC fuse ...

Page 64: ...d to confirm proper mating 6 Route the cables out of the way of casual contact Tie and stow as necessary 9 2 REMOTE MOUNT RADIO INSTALLATION In a remote mount radio installation total speaker cable length of both cables is approximately five 5 feet Therefore to include service loops in these cables the speaker must be mounted within approximately 4 5 feet of the installation s CH 721 control head ...

Page 65: ...ol head s mic connector The thumbscrew must be oriented directly above the hanging mic cable 3 Mate the two connectors by pressing them fully together Do not apply any force to the thumbscrew when mating the connectors 4 Tighten the thumbscrew finger tight Do not use a screwdriver to tighten it 5 Using the microphone clip as a template drill mounting holes in the surface of the selected location 6...

Page 66: ...that mates with the connector on the rear of the radio is identified P1 P2 the cable s 2 pin connector provides connections for an external speaker in a front mount M7300 mobile radio installation See Section 9 1 page 64 for connection instructions P2 is not used in a remote mount radio installation In a remote mount radio installation the audio amplifier in the CH 721 control head drives the exte...

Page 67: ...nput Active Ground Inactive Open 25 INP2 P3 pin 5 Digital Input 2 28 SWA P3 pin 6 Switched A DC Power Output 8 GND P4 pin 1 Chassis ground fused on PK Board at 3 amps 30 DGPS_DATA P4 pin 4 GPS Receiver Module DGPS Correction Data Serial Data Input NMEA Formatted 4 EXTRX P4 pin 5 External Rx Audio Output for non CAN based radio 9 EXTMOD P4 pin 7 External Tx Audio Input for non CAN based radio 3 SDA...

Page 68: ...000 has its horn ring function active this input is used to signal the head radio as such Connects to SS2000 s DB 9 pin 8 For a remote mount radio installation see footnote 5 23 SONOFF P4 pin 19 In a front mount M5300 M7300 radio installation this pin for the siren PA interface is the siren on off logic output open collector from the radio s mounted local CH 721 It is the signal that powers the co...

Page 69: ...serial port connector on the rear of the radio Alternately if the cable is being used to carry GPS NMEA formatted serial data from the radio this male DB 9 connector mates to connector P5 of M5300 M7300 Option Cable CA 012349 001 The cable s female DB 9 connector J2 mates to a PC s male DB 9 serial port connector If the utilized PC is not equipped with a DB 9 serial port connector the use of a sui...

Page 70: ... equipment to the 25 pin D subminiature DB 25 connector on the rear of the CH 721 This cable expands the connections available at the 25 pin connector to three 3 separate connectors The cable s assembly and wiring diagrams are shown in Figure 11 3 below Made From PS CA 011854 Rev D Figure 11 3 CH 721 Option Cable CA 011854 001 ...

Page 71: ...via a Personal Computer This cable has a female DB 9 connector on one end for connection to the PC s serial port connector and a male DB 9 connector on the other end for connection to the serial port connector on the rear of the head The cable s assembly and wiring diagrams are shown in Figure 11 4 below Made From PS CA 104861 Rev A Figure 11 4 Programming Cable CA 104861 ...

Page 72: ...9 male connector either directly or extended via a serial cable Available serial cables for extending the length include CA 013671 010 10 feet and CA 013671 020 20 feet see Section 11 2 Tighten the screws firmly and then route the cabling as required If the computer is not equipped with a DB 9 serial port connector the use of a suitable adapter is required such as USB to RS 232 Adapter Cable CN247...

Page 73: ... torque wrench cannot be used In either case do not over tighten the connector and do not twist the cable when tightening 6 If the installation is wired so the vehicle s ignition key switch turns the radio on and off turn the switch to the Accessory or Run position 7 If the control head is not already powered up do so by rotating its on off volume control clockwise out of the detent position 8 Ver...

Page 74: ... following procedures takes into account such things as customer s requirements measurement errors especially to include uncalibrated equipment cabling losses and voltage and temperature variations By no means should the result from Performance Testing in this section be construed as the exact value of power level output from the radio as the value is set and more accurately measured in the factor...

Page 75: ...UIRED TEST EQUIPMENT Table 14 1 Required Test Equipment TEST EQUIPMENT MODEL PART NUMBER DESCRIPTION Average Responding Wattmeter for conv measurements Bird Electronic Corp Model 43 or equivalent with Type N female connectors at input and output ports Peak Reading Wattmeter for OpenSky measurements Bird Electronic Corp Model 4314B or equivalent with Type N female connectors at input and output por...

Page 76: ...e radio on and set it to the required operating mode based upon available radio programming and test equipment Refer to Section 14 1 as necessary 4 Set the radio to a test talk group or conventional channel if available It is recommended that a test talk group channel be allocated for this testing This same group should be used during the antenna test procedure which is presented in the subsequent...

Page 77: ...4 TRANSMITTING INTO THE MOBILE ANTENNA 1 Connect the antenna cable from the vehicle mounted antenna to the wattmeter as shown in Figure 14 1 2 If not already turn the radio on and set it to the required operating mode based upon available radio programming and test equipment Refer to Section 14 1 as necessary 3 Set the radio to a test talk group or conventional channel if available It is recommend...

Page 78: ...the wattmeter s slug to measure reverse reflected RF power from the antenna The arrow on the face of the slug must point away from the antenna and to the radio to measure reverse power 10 Key the radio s transmitter via the microphone s PTT button 11 Compare the wattmeter reading with the RF power output range of 2 watts or less Transmit only for as long as needed to take the measurement then imme...

Page 79: ... connectors are tight but do not over tighten so connector damage will not occur Improper installation of the RF cables may lead not only to poor radio performance but also to harmful exposure to RF electromagnetic energy Testing is complete The radio is now ready for normal communications ...

Page 80: ...MM 014763 001 Rev E 80 This Page Intentionally Blank ...

Page 81: ...e it as a permanent record of the tested performance of the M7300 mobile radio installation Clip Here Company Performing Installation Technician Performing Test Date of Test mm dd yyyy Mobile Radio Serial Number Antenna Make and Model Numbers Power into a Dummy Load Watts Forward Power with Antenna Reflected Power with Antenna Watts Watts ...

Page 82: ... they are out of the way of casual contact away from sources of extreme heat and wire chafing cannot occur Pay special attention to all RF antenna cables To prevent fumes from entering the vehicle s passenger compartment seal the hole grommet wire combination at the firewall with a silicon based sealer Verify all vehicle components are properly reinstalled such as kick panels headliners and seats ...

Page 83: ...ed by Seller s reasonable efforts the parties will negotiate an equitable adjustment in price Labor to perform warranty service will be provided at no charge during the warranty period only for the Equipment covered under Paragraph B 3 and B 4 To be eligible for no charge labor service must be performed at Seller s factory by an Authorized Service Center ASC or other Servicer approved for these pu...

Page 84: ...Public Safety and Professional Communications www harrispublicsafety com 221 Jefferson Ridge Parkway Lynchburg VA USA 24501 1 800 528 7711 ...

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