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www.mentorradio.com

 

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

M15-OM-11/11 

REMOTE OPERATION 

 

The 25 pin D-subminiature type connector on the rear panel contains all the connections needed 
for various types of remote operation. The functions of the different connector pins are as follows:  

 

PIN NO

.

 

 

FUNCTION 

 

COLOR 

 

mic PTT  

gray  

mic audio  

violet  

ground  

black  

ground  

black  

ground  

black  

ground  

black  

4 ohm rcvr out  

green  

4 ohm rcvr out  

green  

500/600 ohm rcvr out   green  

10 

squelch break  

blue  

25 

+14 vdc  

yellow  

 

Connections to the mating connector can use #22 gauge wire. Note that there are four ground 
terminals and two terminals for the 4 ohm receiver audio output. The ground terminals may be 
used as needed for various remote connections; in some circumstances it may be desirable to 
“double-up”, using two ground pins in parallel. (Each pin is rated for 1 ampere.) The 4 ohm audio 
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 circuit board inside the M15-25. 
Both the 4 ohm and the 500/600 ohm receiver audio outputs are unaffected by the volume control 
on the M15, the latter affecting only the speaker on the front panel of the M15-25.  

 

The remote microphone audio input should be in the range -10 to -16dBm (0.3 to 0.15 v rms). If 
this voltage is too high the modulation may be distorted when transmitting—that is, the voice 
transmissions may not sound as clear. If this occurs, trimmer potentiometer R207 (on printed 
circuit board inside M15-25) can be adjusted to reduce the microphone audio level.  

 

The colors listed above refer to the usual color codes when using Mentor part no. 1101368 6-
conductor remote cable.  

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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