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Owner’s Manual 77-120 ESP

www.midlandradio.com

Page 1 of 13

Owner’s Manual 77-120ESP

http://www.midlandradio.com

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Summary of Contents for 77-120ESP

Page 1: ...Owner s Manual 77 120 ESP www midlandradio com Page 1 of 13 Owner s Manual 77 120ESP http www midlandradio com ...

Page 2: ...position install and tune the right one for you b Where you locate your antenna does make a difference c Antenna Installation d Tuning your antenna XI Function Location of Controls a Front Panel Controls b Microphone Connector c ON OFF Volume d MIC Gain e Squelch Control f RF Gain Control g Rotary Channel Selector h Channel Display i Frequency Display j TX Indicator k WX Indicator l ESP Indicator ...

Page 3: ...ave a positive ground Check the requirements for your vehicle before you begin installation Generally you have a negative ground system if the minus battery terminal is connected to the motor block Contact your dealer in the event you are unable to determine your vehicle s polarity system Installation and operating accessories furnished with your Midland CB 1 Easy removal mounting bracket system 2...

Page 4: ... now Then disconnect the negative lead from the battery to prevent short circuits that can occur during wiring Step 2 With negative ground connect the red wire the one with in line fuse holder to either the a fuse block radio circuit filtered b cigarette lighter unfiltered for noise or c directly to the positive post on your battery Usually the fuse block is the most convenient connecting point It...

Page 5: ...n the bracket arms in line with the retention knobs Set the angle for optimum operating comfort and accessibility Step 2 Tighten the retention knobs Installation of microphone hanger Mounting holes are provided on the microphone hanger bracket The bracket can be attached to the vehicle dash or other convenient location ...

Page 6: ...possible mount the antenna in the center of whatever surface you choose 4 Keep antenna cables away from noise sources such as the ignition system gauges electric fuel pumps etc 5 Make sure you have a solid metal to metal ground 6 Exercise care to prevent cable damage Essentially you have five location choices the roof gutter rear deck front cowl or rear bumper Where you decide to locate your anten...

Page 7: ...n usually be improved by slightly lengthening or shortening its length using a Standing Wave Radio SWR meter For the exact procedures to be used refer to the antenna manufacturer s installation manual You can buy an SWR meter separately or have your antenna checked by your Midland CB Dealer s service department or a two way comm shop ...

Page 8: ...wise will result in the greatest microphone output rotating the control counter clockwise reduces the microphone output improving the sound in high noise environments This control can also be used to control optional power microphone output 4 SQUELCH CONTROL Adjust this control until background noise just disappears If the control is adjusted too far clockwise it may cause muting of weaker signals...

Page 9: ...splayed 11 ESP INDICATOR Indicates the ESP2 Noise Killer circuit has been activated 12 S RF DISPLAY LCD read out of received signal strength and relative transmitter power output 13 CB WX This button causes your unit to change modes between NOAA weather bureau receiver and CB operation 14 CH 9 SWITCH Press this for quick selection of emergency channel 9 All other channels are locked out when chann...

Page 10: ...tate the on off volume control clockwise to turn the unit on Adjust the volume for a normal listening level 3 Select the desired channel by the rotary channel selector Rotate the squelch control until the background noise is just quieted You are now in the receive mode NOTE If the channel will not change check that the CH9 switch is not on In this case switch the CH9 switch off to deactivate this ...

Page 11: ...nition systems or other sources can produce low humming and buzzing noise These high and low sounds are not needed for communications ESP2 can determine the difference between undesired noises and sounds you want to hear and filter the noises out These results ESP2 can accomplish without decreasing receiver range it usually increases range Most importantly ESP2 works by itself and does not need to...

Page 12: ...istortion at 1000 mV 3 Audio frequency response 400 2400 Hz Intermediate frequency I 10 695 MHz II 455 Khz Spurious response more than 45 db TRANSMITTER RF Output Power 4 0 W Frequency Tolerance 0 005 Harmonic Suppression More than 60 db Modulation AM 90 5 SPECIFICATION WEATHER RECEIVER CHANNELS 00 163 275 05 162 450 01 162 550 06 162 500 02 162 400 07 162 525 03 162 475 08 161 650 04 162 425 09 1...

Page 13: ...possessions or from U S military exchange For warranty coverage on merchandise purchased elsewhere consult the supplemental warranty information included with this product or ask your dealer SERVICE If it ever becomes necessary to return your unit for service Pack the unit in its original box and packing Improper packing may result in damage during shipment Include 7 50 for return postage and hand...

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