Advice For Installation; Location/Mounting Of Radio Parts; Transceiver; Detachable Front Panel - Midland 70-3350 User Manual

Vehicular uhf/vhf transceiver
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5 A
DVICE FOR INSTALLATION
WARNING! Installation of this device must be performed by qualified persons who are equipped with the proper
tools.
The information provided below are designed solely as a complement to the experience held by the
technician, who should assume full responsibility for the installation. Incorrectly installing the transceiver may
seriously damage the device or cause damage to people or property. Follow all of the instructions found in this
chapter and in Chapt. 2.
Installation must be in conformity with the regulations of the vehicle manufacturer.
regarding this conformity (e.g., holes, the drawing of power, cable passages, etc.), contact your vehicle
manufacturer's service centre.
As with all electrical devices, this radio requires a periodic laboratory check-up, otherwise its performance cannot be
guaranteed. For further details, contact the administrator of your radio network or the CTE International technical
office.

5.1 Location/mounting of radio parts

5.1.a

Transceiver

Select a location for the radio that is easily accessible to the operator, keeping in mind the security conditions
outlined in Chapt. 2. Use the bracket and screws included in the package to mount the radio.
5.1.b

Detachable front panel

In order to reduce obstruction in the driver/passenger area, the detachable front
panel can be installed on the dashboard, using the proper optional kit available.
For separation and mounting of the front panel, refer to the instructions found in
the kit.
5.1.c

Hand-held microphone mount

The mount provided
(mod.
R14053) is to be used as a storage 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 you wish to activate the monitor function when removing the microphone from its bracket (hang-up), connect this to the
negative (ground) of the vehicle.
Place the bracket in a location which makes the microphone cable not taut and avoid that possible rocking of the
microphone could cause it hitting the vehicle's parts or surrounding objects and get damaged. As well, avoid
placing the microphone in a location where surrounding objects may cause accidental activation of the push to talk
(PTT) button and therefore transmission.
Neither the standard (MK06/35) nor the keyboard (MK06/35-K) microphones are supplied with the radio; however, installation
of the mount is the same for both. For further details, refer to par. 4.1.b.

5.2 Installation of the vehicular antenna

Install the antenna on the exterior of the vehicle. Installation must be in conformity with the regulations of the
antenna manufacturer, and according to the instructions included with the antenna. Installation must also be in
conformity with general security and local regulations, as well as with those indicated in Chapt. 2.
Contact your vendor for advice on choosing the best antenna for your needs. The antenna must be able to irradiate
at least the nominal power of the radio. Once installed and calibrated, the antenna must have a SWR (Standing
Wave Ratio) as low as possible and at below 1:1.5. SWR should be measured with a suitable instrument once the
antenna is completely installed in an open space.
Rev. 2.0 on 1 March 2004
HM35 Series – User's Manual
For questions or doubts
Page 11 of 32

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