Midland Radio 75-785 User Manual 2
75-785
HANDHELD CB RADIO
09/10/12
OWNER’S MANUAL
midlandusa.com
Midland 75-785
40 CH AM HANDHELD CB TRANSCEIVER
78-785 represents state-of-the-art high-tech engineering. Designed for 40 channel Citizen Band Mobile
operation, this transceiver is big on performance. e unit, usable both in professional and private situations,
is a quality piece of electronic equipment, skillfully constructed from the nest components. e circuitry is
all solid-state, mounted on rugged printed circuit boards. It is designed for many years of reliable, troublefree performance. Your mobile CB has a 40 channel Phase Locked Loop synthesizer circuit. e PLL circuit
incorporates technique for generating all required frequencies with few crystals, resulting in much tighter
frequency control and superior reliability.
MAIN FEATURES
• Condenser microphone.
• Ceramic lter: Delivers greater selectivity and reduces adjacent channel interference.
• AGC (Automatic Gain Control) for a constant sound level.
• Automatic modulation control for a constant audio transmit modulation level.
• Low distortion IC audio circuit.
• Automatic noise limiter to reduce pulse noise.
• “HI-LO” switch: Reduces the output power.
• Antenna with BNC connector.
• Jack for external power source and battery charger.
WARNINGS
• While 75-785 has been designed for many years of reliable, trouble-free performance, it is a precision piece of
electronic equipment that should not be exposed to water or to extreme temperatures.
• Do not leave batteries installed over a long period of time as leakage may occur and cause damage to the
radio.
• Never use dierent batteries from the ones suggested.
• Clean the unit with a damp cloth only, never use harsh chemicals.
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CARE OF OPTIONAL RECHARGEABLE Ni-Cd BATTERIES
e following is meant as general information regarding Ni-Cd batteries.
• Always allow the battery to fully charge before using.
• Allow the batteries to fully discharge before recharging. Full discharge will be indicated by the
“BATT. LOW” indicator.
• e above will prevent the batteries from developing “memory” which eectively reduces their capacity.
• It is better to store Ni-Cd batteries that are discharged rather than charged.
• Never use batteries which dier from the ones recommended. Do not mix old and new batteries or batteries
of dierent capacities.
• If you experience problems when using the transceiver, check the following:
A. Batteries must be in good condition;
B. e volume level and squelch control setting;
C. e channel selector for an active channel;
D. e antenna must be properly inserted.
CONTROLS AND INDICATORS
1. Antenna connector with BNC connector: To obtain better results, use either a telescopic or an external
antenna.
2. Squelch Knob: for the maximum receiver sensitivity, the control must be regulated exactly where the receiver
background noise disappears.
3. On/O Volume Control: In “OFF” position your transceiver is o. Turn this control clockwise to switch on
the unit. Continue turning the knob clockwise to set the audio level, until you get a comfortable reception.
4. Display: Indicates the selected channel (from 1 to 40). e display turns o when the squelch is operative.
5. “BATT. LOW” LED: is indicator lights when the batteries are low. Replace the alkaline or recharge the AA
Ni-Cd batteries.
6. “TX” LED: e indicator lights when the unit is transmitting
7. Speaker
8. Microphone: during transmission, hold the microphone two inches from your mouth, speaking in a clear,
normal voice.
9. Push to Talk Button (“PTT”): By pressing it, the transmitter is activated. When released, you activate the
receiver.
10. “Channel UP” button: Tunes to the next channel. Autorepeat is activated by holding this button.
11. “Channel DOWN” button: Tunes to the previous channel. Autorepeat is activated by holding this button.
12. “SPK” jack: external loudspeaker jack (the internal loudspeaker will be disabled).
13. “PTT/MIC” jack: PTT jack / external microphone.
14. 13.8 VDC Charge: Power supply/charge jack. You can power the unit from external sources (car battery, etc.)
and to recharge the Ni-Cd batteries.
15. “HI/LOW” Switch: Selects the output power level during transmission.
16. Battery Compartment: Insert 9 AA alkaline or Ni-Cd batteries. (Note: alkaline batteries are not
rechargeable).
17. Belt Clip
18. Hole for wrist strap
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