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You can connect an optional microphone or earphone with a 3/32-inch (2.5mm) mini plug and a 1/8-inch (3.5mm) plug to the MIC/EAR jacks on the front of the CB. To avoid feedback, do not connect the microphone/earphone’s 3/32- inch (2.5 mm) plug to only the MIC jack in CB mode.

To connect a headset with Voice Activated operation, we recommend you check the response sensitivity of the VOX circuit before installation. Different Voice Activation devices provide different performance results.

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Do not use an earphone with your transceiver when operating a motor vehicle in or near traffic. Doing so can create a traffic hazard and could be illegal in some areas.

If you use an earphone with your transceiver be very careful. Do not listen to a continuous broadcast. Even though some earphones/headphones let you hear some outside sounds when listening at normal volume levels, they still can present a traffic hazard.

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1.Connect the red wire (with the inline fuse holder) on the back of the transceiver to a point in your vehicle’s fuse block that has power only when the ignition is in the ACC (accessory) or ON position.

Red

Black

2.Connect the black wire to your vehicle battery’s

negative (–) terminal or to a metal part of the vehicle’s frame (chassis ground). .#

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•Do not connect the black wire to a non-metallic (plastic) part, or to any part insulated from the vehicle’s chassis by a non- metallic part.

•Most 13.8-volt DC power supplies plug into a standard AC outlet to produce DC power. Before connecting your CB to a 13.8-volt DC power supply, read and follow the instructions included with the power supply.

•To prevent damage to the CB, be sure you connect an antenna and the microphone before you use your CB.

Using Vehicle Battery Power

5

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Radio Shack 21-1706 owner manual 75+08*+%.$#664, 100%6+0#0126+10#. /+%412*101#42*10, Using Vehicle Battery Power
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21-1706 specifications

The Radio Shack 21-1706 is a versatile and compact device that caters to a variety of electronic needs, making it a popular choice among hobbyists, DIY enthusiasts, and professionals. This multifaceted tool combines several functions, allowing users to test, measure, and troubleshoot electrical circuits and components efficiently.

At its core, the Radio Shack 21-1706 serves primarily as a digital multimeter. This functionality permits users to measure voltage, current, and resistance with precision. The device features an easily readable LCD display that provides clear, real-time measurements, thereby enhancing usability even in challenging lighting conditions. The range of measurement capabilities allows users to work on a variety of electronic projects, from basic home repairs to more complex circuit testing.

One of the standout characteristics of the 21-1706 is its ability to perform both AC and DC voltage measurements. This dual capability proves essential in today’s diverse electrical environments where both current types are commonly used. Additionally, the meter’s resistance measurement function is invaluable for diagnosing issues with circuits or assessing the integrity of components.

In terms of design, the Radio Shack 21-1706 is built with user-friendliness in mind. It features a rugged casing that not only protects it from bumps and drops but also ensures longevity for years of reliable use. The well-structured layout of controls makes navigating and selecting different functions straightforward, offering intuitive operation for users of all skill levels.

Another notable feature of the 21-1706 is its continuity tester. This function allows users to quickly check for breaks in circuits, ensuring that connections are intact and operational. In addition, the device is equipped with a diode test function, enabling users to assess the functionality of diodes within electronic circuits.

In conclusion, the Radio Shack 21-1706 stands out as a reliable and practical tool for anyone involved in electronics. Its combination of essential measurement functions, user-friendly design, and robust features make it an invaluable asset for both novice and experienced users. Whether for educational purposes, hobby projects, or professional work, the 21-1706 continues to demonstrate its relevance in the ever-evolving field of electronics.
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