Midland Radio 703350, 703350N Users manual

Midland

70-3350/5445 – User’s Manual

Model 70-3350

Vehicular VHF Transceiver

Model 70-5445 Vehicular UHF Transceiver

User’s Manual

This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may cause undesired operation.

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FCC RF EXPOSURE

The FCC has adopted a safety standard for human exposure to RF energy. Proper operation of this radio under normal conditions results in user exposure to RF energy below the Occupational Safety and Health Act and Federal Communication Commission limits.

Mandatory Safety Instructions to Installers and Users:

This radio is NOT approved for use by the general population in an uncontrolled environment. This radio is restricted to occupational use and work related operations only. Radio operators must have the knowledge to control their exposure conditions and the exposure conditions of bystanders and/or passengers to satisfy the lower exposure limit allowed for General Population. To comply with FCC RF exposure limits, DO NOT operate the transmitter of this mobile radio when a person outside the vehicle is within 130 centimeters (51 inches) for VHF or 93 centimeters (37 inches) for UHF, of the antenna. The antenna supplied by the manufacturer or radio dealer must be mounted at a location such that during radio transmission, no person or persons can come closer than the above indicated minimum safe distance to the antenna, i.e. 130 or 93 cm. To comply with current FCC RF exposure limits, the antenna must be installed at or exceeding the minimum safe distance stated above, and in accordance with the requirements of the antenna manufacturer or supplier.

Vehicle Installation Instructions:

The antenna used for this transmitter must be mounted on the center of the roof ONLY and must be installed in vehicle having the following characteristics in order to prevent bystanders and passengers from being exposed to levels exceeding the limits for General Population/Uncontrolled Exposure environment: All passengers must be sitting under a solid metal roof. Rooftop width must be at least 76 inches OR the edges of the physical boundary of the vehicle must be at least 76 inches apart. DO NOT operate the radio without the proper antenna installed. Do not substitute any antenna for the one supplied or recommended by the manufacturer or radio dealer. The antenna gain must not exceed 0 dBd. By not following the antenna recommendations you may be exposing person(s) to excess radio frequency radiation. You may contact your radio dealer or the manufacturer for further instructions. DO NOT transmit more than 50% of total radio use time (50% duty cycle). Transmitting for more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. This radio is transmitting whenever the TX icon is displayed on the LCD. Pressing the PTT switch on the side of the microphone normally causes the radio to transmit.

Note: The preceding information is provided to make you aware of RF exposure and how to

ensure that this radio is operated within FCC RF exposure limits.

You, as the qualified end-user of this radio device must control the exposure conditions of bystanders to ensure the minimum separation distance, stated above for satisfying FCC RF exposure compliance, is maintained between the antenna and nearby persons. Transmit only when all person(s) are at least the minimum distance from the properly installed, externally mounted antenna.

IMPORTANT SAFETY INFORMATION

CAUTIONS

The antenna connector must be snugly tightened to maintain proper electrical connection and moisture resistance. Equipment must be grounded according to Midland Radio Corporation installation instructions for safe operation. Equipment should be serviced only by a qualified technician. Refer to radio service manual for additional information on installation and safety precautions.

WARNING!

! DO NOT allow the antenna to touch or come in very close proximity with the eyes, face, or any exposed body parts while the radio is transmitting ! DO NOT operate the radio in explosive or flammable atmospheres. The transmitted radio energy could trigger blasting caps or cause an explosion. ! DO NOT allow children to operate or play with this radio.

Note: The above warning list is not intended to include all

hazards that may be encountered when using this radio.

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70-3350/5445 – User’s Manual

In this manual…

1 GENERAL INFORMATION FOR THE HM35 SERIES.................................................................................... 5

2 ABOVE ALL… SAFETY!................................................................................................................................6

2.1 Conventions and Symbols Used in This Manual...........................................................................................................6

2.2 Warnings.......................................................................................................................................................................6

2.3 Security.........................................................................................................................................................................6

2.3.a General precautions.........................................................................................................................................6

2.3.b Operating conditions/usage..............................................................................................................................6

2.3.c Installation........................................................................................................................................................7

2.4 Assistance.....................................................................................................................................................................7

3 PARTS OF THE RADIO AND THEIR USE..................................................................................................... 8

Front panel..............................................................................................................................................................................8

Rear panel..............................................................................................................................................................................8

4 CHECKING THE PARTS.............................................................................................................................. 10

5 ADVICE FOR INSTALLATION .....................................................................................................................11

6 BASIC OPERATIONS................................................................................................................................... 13

7 USE OF COMMANDS/OPTIONS..................................................................................................................16

8 CUSTOMIZATION.........................................................................................................................................20

9 USE WITH CTCSS/DCS AND/OR SELECTIVE CALLS...............................................................................22

10 ADVANCED FUNCTIONS ............................................................................................................................ 24

4.1.a Package contents...........................................................................................................................................10

4.1.b Hand-held microphone...................................................................................................................................10

5.1 Location/mounting of radio parts.................................................................................................................................11

5.1.a Transceiver.....................................................................................................................................................11

5.1.b Detachable front panel ...................................................................................................................................11

5.1.c Hand-held microphone mount........................................................................................................................11

5.2 Installation of the vehicular antenna............................................................................................................................11

5.3 Connections................................................................................................................................................................12

5.3.a Antenna..........................................................................................................................................................12

5.3.b Power supply..................................................................................................................................................12

5.3.c Connection/Disconnection of the microphone................................................................................................12

5.3.d External speaker (optional) ............................................................................................................................12

6.1 Turning HM35 on/off ...................................................................................................................................................13

6.2 Volume adjustment .....................................................................................................................................................13

6.3 Channel selection........................................................................................................................................................13

6.4 Reception....................................................................................................................................................................13

6.5 Squelch adjustment.....................................................................................................................................................13

6.6 Monitor........................................................................................................................................................................14

6.6.a Monitor from the menu ...................................................................................................................................14

6.6.b Monitor using the microphone ........................................................................................................................14

6.7 Transmission...............................................................................................................................................................14

6.7.a Time Out Timer (TOT)....................................................................................................................................14

6.7.b Busy Channel Lock Out (BCLO) ....................................................................................................................15

6.7.c Selecting transmission power.........................................................................................................................15

7.1 How to navigate the command menu..........................................................................................................................16

7.2 Summary table for the command menu......................................................................................................................17

Menu diagram.......................................................................................................................................................................18

7.4 Meanings of display icons...........................................................................................................................................18

7.5 Meaning of function key icons.....................................................................................................................................18

Each function key is assignable. The table here below summarizes the meaning of the icons displayed once a function key

is pressed. ............................................................................................................................................................................18

8.1 Adjustment of microphone sensitivity..........................................................................................................................20

8.2 Adjustment of display contrast....................................................................................................................................20

8.3 Backlight adjustment...................................................................................................................................................20

8.4 Exclusion of internal speaker......................................................................................................................................21

9.1 Reception....................................................................................................................................................................22

9.2 Transmission...............................................................................................................................................................22

9.2.a CTCSS/DCS Transmission ............................................................................................................................22

9.2.b Sending a selective call..................................................................................................................................22

9.2.c Sending a variable selective call....................................................................................................................23

9.2.d Sending an emergency selective call.............................................................................................................23

10.1 Channel scanning .......................................................................................................................................................24

10.1.a Activation of scanning ....................................................................................................................................24

10.1.b Temporary exclusion of channels from scanning...........................................................................................24

10.1.c Temporary pause in scanning........................................................................................................................24

10.1.d Changing the channel scanning list................................................................................................................25

10.2 Rapid recall of home channel......................................................................................................................................25

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70-3350/5445 – User’s Manual

10.3 Locking microphone’s keypad.....................................................................................................................................25

10.4 Signal reception attenuator.........................................................................................................................................26

10.5 Talk Around.................................................................................................................................................................26

10.6 Confidential transmission (optional scrambler board).................................................................................................26

10.7 Audio amplifier (PA function).......................................................................................................................................27

10.8 Auxiliary output............................................................................................................................................................27

10.9 External alarm.............................................................................................................................................................27

11 CLEANING AND MAINTENANCE................................................................................................................ 29

11.1 Maintenance of the radio.............................................................................................................................................29

11.1.a Cleaning the radio..........................................................................................................................................29

11.1.b Connectors.....................................................................................................................................................29

12 OPTIONAL ACCESSORIES......................................................................................................................... 30

13 CONNECTIONS............................................................................................................................................ 31

13.1 Input/Output rear connector........................................................................................................................................31

14 ALPHABETICAL INDEX............................................................................................................................... 32

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70-3350/5445 – User’s Manual

1 GENERAL INFORMATION FOR THE HM35 SERIES

This user’s manual describes the standard functions of the HM35 series of vehicular transceivers, available in different versions which vary according to frequency band.

HM35 is a robust vehicular radio “SYSTEM” equipped with highly advanced functions that have been designed for ease of use and flexibility for various needs, thanks to “Flash EEProm” technology.

Specifications of HM35’s transceiver are compatible with ETS 300-086 and ETS 300-113; as well, HM35’s highly advanced design and resistance conform to IEC529 level IP54 and to MIL STD 810 C, D, E and F.

 The manufacturers, in their effort to constantly improve product quality, reserve the right to change specifications without

forewarning.

 The functions available to the user vary depending on the radio’s programming.

 Use of this transceiver is subject to authorization from the appropriate local authority.

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70-3350/5445 – User’s Manual

2 ABOVE ALL… SAFETY!

2.1 Conventions and Symbols Used in This Manual

Notes such as this one indicate practical advice that we recommend following for simplified use of the device, and for optimal



performance.

 Warning symbols such as this one indicate a crucial description for avoiding serious inconvenience, possible

damage to the device, and potential danger to yourself or other persons.

• The names of buttons and keys are written in bold.

• Messages that appear on the display (e.g., names of menus and sub-menus) are shown in

• Sentences and important words are written in italics.

2.2 Warnings

Writing of this manual has been completed with the intention of supplying comprehensive, precise and up-to-date



information. Midland Radio Corporation will not assume responsibility for errors outside their control. Furthermore, the manufacturer does not guarantee modifications to the device that are carried out by unauthorized persons, or faulty installations which influence the applicability of the information in this manual.

this font (courier new).

 The reliability of the information provided in this manual is understood to allow for possible errors and omissions,

and refers to the software version available at the time of printing.

 Use of this transceiver is subject to applicable local regulations, as well as to the use of good sense. When

questions regarding its operation arise, please contact your vendor or a Midland Radio Corporation authorized service center before using the transceiver.

2.3 Security

Your MIDLAND transceiver is designed to give you maximum security and reliability. As with all electrical devices,



basic precautions should be followed in order to avoid damage to other objects or to people - including yourself and your radio. Please see the following precautions:

2.3.a General precautions

• This device is to be used solely as an aid to work performance. Its settings may be affected by different factors, such as defects or malfunction of the device, environmental conditions, or improper use.

• It is important to read – and follow – all of the warning labels and instructions placed on the device and its accessories.

• Do not open the transceiver for any reason, or attempt to repair it (with the exception of the routine maintenance described in

this manual). Unauthorized opening of the transceiver will nullify the warranty, and may cause damage that requires drastic repair work. Please contact your local vendor for assistance.

• Do not let your radio get wet. If the transceiver happens to get wet, dry it as soon as possible with a soft, clean cloth. If you think liquid may have penetrated HM35’s housing, see your authorized service center as soon as possible.

• Only use original accessories; anything else may seriously damage your transceiver.

• Turn off your radio before cleaning it. For cleaning, follow the instructions outlined in Chapt. 11.

• Pay attention to environmental conditions. Your radio was designed to be used in extreme environmental conditions, though

excessive heat or cold should be avoided.

• Operating conditions/usage

• Do not use the radio when driving. Driving regulations expressly prohibit the use of transceivers by drivers while the vehicle is

in motion.

• Do not operate the radio near shieldless explosives or in potentially explosive environments (e.g., in the vicinity of gas stations). A single spark may cause an explosion.

• Do not approach the transceiver’s antenna during transmission. The radio functions at optimum levels when the microphone is held at a distance of 5 to 10cm from the mouth, and when the antenna is installed at the centre of the roof, in a vertical position and free from obstacles.

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2.3.b Installation

• Installation and removal of the radio should be carried out only by experienced technicians. The information found in this manual are meant solely as a complement to the experience held by the technician, who should assume full responsibility for the installation.

• This transceiver generates and irradiates electromagnetic energy (EME) at radio frequency (RF), and as such must be installed and placed in operating conditions that are in conformity with the instructions contained in this manual and with current regulations. Failure to follow these instructions can cause personal injury and/or serious malfunction of the device.

• It is very important to follow the requirements relative to the prevention of radio frequency exposure. Unauthorized changes or modifications to this device may invalidate conformity to regulations. All changes or modifications to the radio must be approved in writing by the manufacturer.

• Ensure that your power supply corresponds to the values cited in this manual. In case of doubt, contact your local vendor.

2.4 Assistance

We urge you to write the serial number of your transceiver in the space provided below. This number is found on the transceiver’s identifying label. This number will be useful in the event of repair/assistance and/or loss and/or theft of the device.

Serial number_______________________

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3 PARTS OF THE RADIO AND THEIR USE

3.1 Front panel

1 8

70-3350/5445 – User’s Manual

[1] Display - constantly displays the operating status of the device and guides the use of various functions

through a series of icons and messages.

[2] On/Off-Volume knob – used for turning the radio on/off and for adjustment of reception volume.

[3] Microphone socket – this RJ type socket connects the standard hand-held (MK06/35) or keypad microphone

(MK06/35-K) to the radio.

[4] Programmable function keys F1, F2, F3 and F4/E

be programmed with fixed selective calls.

The F4/ESC button is also used for exiting a menu (ESC).

[5] (up) / (down) buttons – for channel selection and navigation of the command menu.

[6] Menu/↵ button – for accessing the command menu and confirming the option shown on the display.

[7] Internal speaker.

[8] Status LED – is lit with different colors to indicate the radio’s status (transmission, busy channel, etc.)

SC enable the user to recall commonly used functions or can

3.2 Rear panel

[9] Power cable – this red/black cable connects to a 13.8 VDC power source (red is positive and black is

negative), for example to the vehicle battery.

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70-3350/5445 – User’s Manual

[10] Input/output connector – for connection to the external speaker and for activation of external devices. For

connections, refer to Par. 13.1.

[11] Antenna socket - this SO 239 (UHF) socket is for connecting a suitable antenna. Another option is to use a

BNC-type connector. For further details, please contact your local vendor.

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4 CHECKING THE PARTS

4.1.a Package contents

(a) Transceiver (b) Power cable (c) Vehicle bracket with screws and knobs for mounting (d) Mounting piece for microphone, with screws (e) User’s manual (this manual!)

 Depending on the model, some parts may already be attached/connected to the device. If any parts are missing or damaged,

contact your vendor as soon as possible.

4.1.b Hand-held microphone

IMPORTANT! The microphone is ordered separately, and can be one of the following two types:

• Standard microphone MK06/35 – microphone for general use, with push-to-talk transmission button (PTT).

• Keypad microphone MK06/35-K – includes standard microphone functions, plus variable selective calling (if activated during

programming).

Both microphones support the monitor function activation when the microphone is removed from its mount. For further details, refer to par. 5.1.c.

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