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HM35 Series – User’s Manual 

Rev. 2.0 on 1 March 2004 

Page 1 of 32 

Midland  

Model 70-3350 

Vehicular VHF Transceiver 

Model 70-5445 

Vehicular UHF Transceiver 

 
 

 

 
 
 

User’s Manual 

 

 

Copyright 

©

 2004 by Midland Radio Corporation; all rights reserved. 

 

 

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.

 

Summary of Contents for 70-3350

Page 1: ...ver User s Manual Copyright 2004 by Midland Radio Corporation all rights reserved 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 ...

Page 2: ...he 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 tha...

Page 3: ...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 USE OF COMMANDS OPTIONS 16 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 ke...

Page 4: ...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 ...

Page 5: ...r 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 witho...

Page 6: ...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...

Page 7: ...ure 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 y...

Page 8: ...io 4 Programmable function keys F1 F2 F3 and F4 ESC enable the user to recall commonly used functions or can 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 L...

Page 9: ... 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 ...

Page 10: ...arts 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 ...

Page 11: ...rage place for the microphone when the radio is inactive An option available to the user is the monitor function hang up which is automatically activated when the microphone is removed from its mount For further details regarding the monitor function refer to par 6 6 Microphone installation 1 Fix the bracket in a position close to the front panel of the radio and near to the radio operator 2 If yo...

Page 12: ...lip on the RJ plug and detach it from the socket with caution Keypad microphone The keypad microphone MK06 35 K can only be used if the radio has been programmed for its activation as per the following instructions If it has not been programmed the command described below will not be accessible 1 Press the menu button to access the command menu then press the buttons repeatedly until the Lcd Keypa...

Page 13: ...se until you hear a click and the display turns off 6 2 Volume adjustment To increase volume turn the On Off Volume knob clockwise To decrease volume turn the knob counter clockwise 6 3 Channel selection To select a channel press the button to scroll through channels upwards or to scroll downwards 6 4 Reception There are three reception modes Open traffic this mode allows the user to listen to all...

Page 14: ...crophone If the monitor function has been activated hang up you will activate it each time you remove the microphone from its mount 6 7 Transmission 1 Remove the microphone from its mount 2 Ensure the channel is unoccupied otherwise you will create interference and verify the status LED is off or flashing orange 3 Hold down the push to talk PTT button on the hand held microphone The status LED 8 t...

Page 15: ...ver can transmit with two different power levels which are predefined during programming channel by channel The display will always show the power selected using the following icons high power low power 1 Press the menu button to access the command menu then use the buttons to highlight the Radio Param option 2 Press menu to view the available sub menus 3 Press the buttons until the sub menu Power...

Page 16: ...ave selected an option with two values e g high or low output power you can switch from one value to another by pressing the menu button If you have selected an option activate or deactivate a will appear on the display when the option is activated Insert remove the symbol by pressing the menu button If you have selected a selective call begin transmission by pressing the menu button 5 If necessar...

Page 17: ...ergency Send Emergency selective call Press menu to send immediately 9 2 d Scanning Start scanning searches for signals on programmed channels Press menu to start immediately 10 1 a Scan Esc Temporary pause in scanning Immediate pause 10 1 c Chan Del Temporary exclusion of one or more channels from scanning Immediate exclusion with menu Chan Del 10 1 b Scan Edit List Modification of scanning list ...

Page 18: ... of receiver Receiver sensitivity attenuator activated Local reduced sensitivity of receiver 10 4 7 5 Meaning of function key icons Each function key is assignable The table here below summarizes the meaning of the icons displayed once a function key is pressed This section not found in PDF version Icon Description Sends fixed selective call Call 1 Sends fixed selective call Call 2 Sends variable ...

Page 19: ...usts contrast Adjusts brightness Activates auxiliary output Sends a call to the priority channel l d Activate deactivates local distance mode Adjusts microphone sensitivity pow Selects high low power Key not assigned Deletes a channel from the scan list Inserts a channel in the scan list Sends an emergency call Activates the MK0635 K mike Displays the predefined messages Agenda ...

Page 20: ...ht and temperature you may wish to change the display contrast for a better view of the screen To change the contrast 1 Press the menu button to access the command menu then use the buttons to highlight the Lcd Keypad option 2 Press menu to view the sub menus available 3 Press the buttons until the Contrast adjustment of display contrast sub menu is highlighted then press menu to enter the setting...

Page 21: ... to view the sub menus available 3 Press the buttons until the Int Spkr Off deactivation of internal speaker sub menu is highlighted 4 Press menu to insert the symbol beside the appropriate option In other words so the internal speaker is deactivated 5 Exit the sub menu by pressing the F4 ESC button then press it a second time to exit the main menu and return to the standby screen To reactivate th...

Page 22: ... call fixed Call 2 second selective call fixed User variable selective call the variable digits can be keyed into the MK06 35 K keypad microphone refer to par 4 1 b Emergency selective call for emergencies special call sent repeatedly and defined during the programming phase Rapid send of selective calls Your transceiver can be programmed to send certain selective calls using one or more of the F1...

Page 23: ...s 2 and 3 from the par Sending a fixed selective call from the menu 3 Press the buttons until User Call is highlighted then press menu to make the call 9 2 d Sending an emergency selective call This is a special call that is sent repeatedly in cycles on a predefined channel based on the radio s programming Use this emergency call only if you find yourself in a real condition of necessity which req...

Page 24: ...during the programming phase this will be the priority channel or another predefined one and will begin transmission When you release the PTT the scanning will begin again automatically To stop the scanning repeat the above procedure at step 4 remove the 10 1 b Temporary exclusion of channels from scanning You can temporarily exclude channels that are of no interest from the scanning list as follo...

Page 25: ...n to the standby screen F1 Changing the priority channel 1 Remove the current priority channel from the scanning list following the procedure outlined above 2 Remove the new channel that you wish to assign as the priority channel from the scanning list 3 Press the F1 padd function key You will see the first channel that is not inserted into the scanning list 4 Press the buttons until the channel y...

Page 26: ...ter and it breaks down you can use the Talk Around function to communicate with nearby stations by bypassing the repeater To activate this function 1 Select a semi duplex channel otherwise the Talk Around function cannot be activated 2 Press the menu button to access the command menu then use the buttons to highlight the Radio Param option 3 Press menu to view the available sub menus 4 Press the b...

Page 27: ...aulty connection to the external speaker may seriously damage the transceiver 10 8 Auxiliary output The rear Input Output socket of the radio can control external devices that are activated deactivated each time you turn your device on off To activate this function 1 Press the menu button to access the command menu then use the buttons to highlight the Switches option 2 Press menu to view the avai...

Page 28: ...March 2004 Page 28 of 32 5 Exit the sub menu by pressing the F4 ESC button then press it a second time to exit the main menu and return to the standby screen A faulty connection to the Input Output socket may seriously damage the transceiver ...

Page 29: ... further details contact your radio network administrator or CTE International technical office 11 1 a Cleaning the radio Carefully polish the radio using a soft clean cloth that does not have loose fibers If the radio is very dirty slightly dampen the cloth in a solution of 90 water and 10 neutral soap Do not use liquid detergents sprays alcohol solvents or abrasives 11 1 b Connectors During clea...

Page 30: ...eral use with PTT transmission button MK06 35 K keypad microphone along with the standard microphone functions it allows the user to make variable selective calls if activated during the programming phase Microphone with base microphone with stand alone base 220VAC 13 8Vdc stabilized power supply for using the transceiver as a base station properly connected to an external antenna Kit for detachab...

Page 31: ...UTPUT 9 EXTERNAL PTT 10 SELCAL VALID 11 RSSI LEVEL 12 CDS SIGNAL 13 HANG UP 14 GND Grounded 15 GND Grounded 16 EXT SPEAKER 17 Spare 2 Additional contact for special use 18 Spare 1 Additional contact for special use 19 Output 12V 100 mA max 20 Backlight control input 21 INPUT OUTPUT 2 22 INPUT OUTPUT 1 23 External alarm input 24 Emergency switch input 25 Ignition sense input Faulty connections may ...

Page 32: ...r Input Output connector 29 Conventions Symbols 5 CTCSS DCS General 12 Monitor 13 Transmission 20 Customization Backlight adjustment 18 Display contrast adjustment 18 Excluding internal speaker 19 Microphone sensitivity 18 Icons Meanings 17 Maintenance Cleaning the radio 27 Connectors 27 Menu Diagram 17 How to navigate 15 Summary table 16 Microphone sensitivity 18 Monitor 13 Parts and their use 7 ...

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