Midland 77-857 Owner'S Manual Download | Manualshive

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Summary of Contents for 77-857

Page 1: ...fiqr 74 it 11 40 CHANNEL MOBILE TRANSCEIVER OWNER S GUIDE ...

Page 2: ...al information diagrams and charts provided in this manual are supplied for the use of a qualified holder of a first or second class radiotelephone license in servicing this transceiver It is the user s responsibility to see that this unit is operating at all times in accordance with the F C C Citizens Radio Service regulations If you install or service your own transceiver do not attempt to make ...

Page 3: ...output PA SQUELCH CONTROL This transceiver has been equipped with a simple PA Public Address amplifier system When operat ing the transceiver as a PA place the control in the PA fully counter clockwise position and connect a suitable 8 16 ohm PA speaker to the EXT CB PA Jack on the rear panel Press the Push to Talk bar on the microphone and talk into the microphone then your voice will be heard fr...

Page 4: ...re expecting a call on your radio simply put the EXT CB OFF switch in the EXT CB position This channels incoming calls through the P A speaker and cuts off the built in speaker or speaker connected to the EXT SPEAKER jack It is possible for you to transmit while the unit is in the EXT CB mode although the unit s built in speaker or external speaker will not be operational until the EXT CB OFF swit...

Page 5: ...h of incoming signals when receiving and RF power output when trans mitting ANTENNA CONNECTOR Used for antenna connection matches PL 259 standard type EXT SPEAKER JACK Used for an external speaker 8 ohms connection This jack accepts a standard 3 5 mm0 2 circuit phone plug When the plug is inserted into the jack the built in speaker is automatically disconnected EXT CB PA JACK This will be used for...

Page 6: ...CHANNEL SELECTOR VOLUME CONTROL POWER SWITCH S RF POWER METER ANL SWITCH EXT CB OFF SWITCH OPERATION OF CONTROLS PUSH TO TALK MICROPHONE MIC JACK PA SQUELCH CONTROL DELTA TUNE ...

Page 7: ... QC POWER CONNECTOR ANTENNA CONNECTOR EXT CB PA JACK 8 or 16 ohms EXT SP JACK 8 or 16 ohms ...

Page 8: ...block but if you cannot determine the polarity system of your vehicle it is suggested that you contact your vehicle dealer for definite information NEGATIVE GROUND SYSTEM Connect the red DC power cord from the transceiver to the positive or battery terminal or other convenient point and connect the black power cord to the negative or battery terminal POSITIVE GROUND SYSTEM In the case of a positiv...

Page 9: ...iver for easy connection to a standard PL 259 coax plug Following the antenna manufacturer s instructions carefully will insure proper operation Whatever the type of antenna selected it is important that it be properly adjusted and matched and the connecting transmission line be in good condition so as to avoid a high VSWR voltage standing wave ratio A VSWR over 2 5 results in reduced radiated pow...

Page 10: ...lector switch to a desired channel 8 To transmit press the Push to Talk button on the microphone and to receive release the button IMPORTANT Do not short circuit the antenna or do not try to transmit without an antenna connected to the Antenna connector on the rear panel This may cause damage to the output power transistors Transmit only after carefully checking the installation of antenna connect...

Page 11: ...0 dB RF Output Power Maximum 4 0W Squelch Range 0 5 µV 500 µV Delta Tune About 1 KHz Receiving only Audio Output Power More than 3W EXT SP at 8 ohms Controls Volume Squelch Delta Tune Channel Selector ANL OFF Switch EXT CB OFF Switch Jacks and Connectors Microphone EXT SP Antenna EXT CB PA Speaker DC Power Speaker 3 dynamic 8 ohms Microphone Dynamic CB mike Power Source DC 13 8V Size 6 3 8 W x 7 7...

Page 12: ...licensed person care must be taken in the replacement of parts to use only authorized parts in order not to void the type acceptance of this unit NOTE When ordering parts it is essential to specify the correct model number and serial number of the unit FREQUENCY CHANNEL NUMBER CHARTS Frequency Channel Frequency Channel Frequency Channel Frequency Channel 26 965 MHz 1 27 085 MHz 11 27 215 MHz 21 27...

Page 13: ...PARTS LAYOUT FRONT VIEW ...

Page 14: ...BACK VIEW ...

Page 15: ......

Page 16: ...tside of our factory This warranty does not cover carrying cases earphones batteries antenna broken or cracked cabinets or any other accessory used in connection with this products This warranty is in lieu of all other warranties expressed or implied and no representative or person is authorized to assume for us any other liability in connection with the sale of our products Sales receitp must acc...

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