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Phone:  216-265-2315 * Fax:  216-267-2915 

M15-OM-11/11 

INSTALLATION 

 

The M15-25 can either simply rest on a shelf or desk, or it may be mounted in a 19 inch relay rack. 
When rack mounted, rear support is not required. This unit does not contain a cooling fan, and 
does not normally need one. However, when rack mounted there should be a minimum of 1-1/4 
inch above and below the cabinet to allow air circulation. When the M15-25 is located on a desk or 
shelf, do not place equipment, papers, magazines, etc. on top of it that would restrict its ability to 
stay cool.  
 
Note that during extended or frequent transmissions, the heat sinks on the rear panel will become 
quite hot. While these have nylon covers for safety, under heavy use conditions operators should be 
cautious about reaching behind the M15-25 and touching these parts.  Power is applied via a 
standard power inlet and IEC removable line cord. A rotary switch on the inlet allows selection of 
either 115 or 230 volts ac. The fuse is (part of power inlet), a 4 amp. “international” type, can be 
replaced by pulling out the fuse holder section (the cord must be removed first; and a light pry 
from a screw driver may help in accessing the fuse). There is room for a spare fuse inside the 
power inlet.   
 
The antenna connector is type N. If the antenna coax does not mate with this type, adapters are 
available from Mentor Radio or from many electronic distributors. Connections for remote 
operation, when needed, are made via the 25 pin connector (type DB25) on the rear of the cabinet.  
The antenna should be either a wideband type (118-137 MHz) or a narrow band type tuned to the 
channel frequency. If a 3 or 6 dB gain antenna is used, communications range will be increased, 
because gain antennas effectively increase both receiver sensitivity and transmitter power.  
 
Low loss coaxial cable is recommended, especially if the cable length exceeds 30 feet (10 meters).  
Plug an aircraft type or suitable pedestal type microphone into the microphone jack on the front 
panel of the M15. Be sure the plug is pushed all the way into the jack.  If remote operation is to be 
used, refer to the section on this subject later in this manual.  

 

Содержание M15

Страница 1: ...o com Phone 216 265 2315 Fax 216 267 2915 M15 OM 11 11 M15 Solid State VHF Aeronautical Band Radio Receiver Transmitter Mobile Transceiver 118 000 136 975 MHz M15 OWNER S MANUAL Solutions for Advancing Communications ...

Страница 2: ...also uses 3rd overtone crystals followed by varactor tracked MOSFET tripler and buffer amplifiers Three untuned broadband stages boost the transmitter carrier power to approximately 5 watts Amplitude modulation is applied to the last two stages the driver and final amplifiers The transmitter signal passes through a 7 element Tchebychef low pass harmonic filter which also contains two PIN diodes fu...

Страница 3: ... ac The fuse is part of power inlet a 4 amp international type can be replaced by pulling out the fuse holder section the cord must be removed first and a light pry from a screw driver may help in accessing the fuse There is room for a spare fuse inside the power inlet The antenna connector is type N If the antenna coax does not mate with this type adapters are available from Mentor Radio or from ...

Страница 4: ...h control clockwise Turn the squelch knob only as far as necessary to stop the noise turning it farther than necessary may prevent calls from distant aircraft from being heard in the receiver s speaker If it is anticipated that it may be necessary to receive some very weak signals use no squelch at all control fully CCW To transmit to an aircraft fully depress the push to talk PTT switch on the mi...

Страница 5: ...io receiver outputs can be used with one or two external speakers The 14 vdc can supply up to 500 ma to operate external remote equipment The 500 600 ohm receiver audio output can be used for remote stations or for a tape recorder out put It s level is factory adjusted to 0 dBm 0 77 v rms but may be adjusted internally for any level from 7 to 10 dBm by trimmer potentiometer R205 on the printed cir...

Страница 6: ...tates all transmitters must be licensed by the Federal Communications Commission FCC Application is filed on FCC form 406 for base stations The M15 25 contains two different equipments which must be listed on the application Do not list the M15 25 instead list the M15 transceiver FCC identification no QQTM15 and the PA25 power amplifier FCC identification no QQTPA25 With each new M15 Mentor Radio ...

Страница 7: ......

Страница 8: ...ked for a Class of Station The second table below can help you select your Class You must apply for a frequency that the FCC permits for your selected Class Some of the permissible frequencies are listed below For a complete listing of available frequencies consult the FCC rules Part 87 173 available online at http www wireless fcc gov rules html Mentor Model FCC Identification Transmitter Output ...

Страница 9: ...are not liable for defects or damages caused by the use of unauthorized replacement parts and or service ALL IMPLIED WARRANTIES INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITTNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO ONE YEAR Some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you MENTOR RADIO LLC BECAUSE ...

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