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Installation And Operation Manual

Mentor radio MB, Installation And Operation Manual

Looking for a User Manual for your NEC MB product? Look no further! Download the comprehensive manual for free from manualshive.com, offering step-by-step instructions and troubleshooting tips. Get all the information you need to maximize the functionality of your NEC MB device, conveniently at your fingertips.

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1101242-6

(rev.

6-98)

MENTOR

RADIO

CO.

«
...
5
6
7

Summary of Contents for MB

Page 1: ...s which are electronically tuned by voltage variable capacitors varactors Re ceiver selectivity is primarily determined by an eight pole monolithic crystal filter con nected between the mixer and i f amplifier Automatic gain control is applied to the r f amplifier and the first of the two integrated circuit i f amplifier stages A conventional diode detector is followed by noise limiter audio pream...

Page 2: ...craft or if there is higher terrain within desired communications dis tances The antenna for the Model MB should be located well away from other communications antennas if at all possible Strong nearby signals from transmitters on other channels can block or interfere with reception in any radio receiver If there are other aviation bad transmitters and antennas on the airport the minimum recommend...

Page 3: ...ead should be no longer than 2 inches 5 cm A number of acceptable microphone choices exist Whether of the hand held aircraft style or a table or desk dispatchers style a transistorized dynamic microphone element is much preferred over the older carbon type elements which have poorer performance and shorter lives Many readily available microphones such as a condenser un amplified dynamic and cerami...

Page 4: ... station In this situation the control may be rotated fully clockwise The squelch control does not affect transmitter operation The signal strength meter S meter is useful for checking receiver sensitivity and the rela tive strengths of aircraft transmitters whose positions are known For example if several aircraft at a specific ramp or taxiway position produce S 20 readings while another pro duce...

Page 5: ...of a communications problem check that the frequency selector switch has not been inadver tently changed to a different channel An aviation type noise canceling microphone is recommended To transmit press the push to talk ptt switch on the microphone Hold the microphone close 1 4 inch or 1 2 cm to your mouth and speak directly into the center of the microphone s acoustical open ing at a moderate v...

Page 6: ...ot light if the microphone is held too far from the speaker s mouth The red antenna lamp warns of a bad antenna system It lights when transmitting if there is more than 10 reflected antenna power This is equivalent to an SWR standing wave ra tio exceeding 2 1 Most good antenna installations have an SWR less than 1 6 with re flected power less than 5 If the ANT lamp lights a person skilled in anten...

Page 7: ...1101242 6 rev 6 98 MENTOR RADIO CO ...

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