1.Remove the inner cardboard disc from the supplied template/paint mask and keep it for later. Use the outer portion of the mask as a template to mark the cutout hole size and location for mounting the speaker.

2.Use a drywall or keyhole saw to cut

the hole.

Template

2Connect to your amplifier

1.Route the speaker wire from your amplifier to the speaker. Avoid routing near existing electrical wires and do not nail or staple the wire.

2.Separate about 4 inches (100 mm) of wire at each end.

3.Using a wire stripper, remove about 1/4 inch (6 mm) of insulation from each wire. Then twist the ends of each wire.

1/4 inch

1/4 inch

4 inches

4.Connect the positive (marked) wire to the red speaker terminal by pressing the tab, inserting the wire into the hole, and releasing the tab. Repeat this procedure to connect the negative (unmarked) wire to the black terminal.

6.Connect the wire coming from the red terminal to your amplifier’s positive (+) terminal. Connect the wire from the black terminal to your amplifier’s negative (–) terminal.

SPEAKERS

S

K

E

R

S

Screw

Tabs





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Radio Shack 40-290 manual Connect to your amplifier

40-290 specifications

The Radio Shack 40-290 is a compact and versatile handheld scanner that has garnered a reputation for its user-friendly design and extensive features. It is especially popular among amateur radio enthusiasts, hobbyists, and those who want to stay informed about local events. This device is notable for its ability to receive a wide range of frequencies, making it an essential tool for monitoring various wireless communications.

One of the main features of the Radio Shack 40-290 is its capability to tune into both analog and digital signals. This includes a variety of frequency bands, such as VHF and UHF, which allow users to listen to local police, fire departments, aviation communications, and even ham radio operators. The scanner is equipped with a built-in memory that can store numerous channels, allowing users to quickly access their preferred frequencies without the hassle of manual tuning.

The device boasts a solid construction that ensures durability, which is particularly important for those who plan to use it in various environments. Portability is another strong point, as the Radio Shack 40-290 is lightweight and can easily fit into a bag or be carried in hand. This makes it ideal for outdoor use, such as at events, during camping trips, or for general monitoring in urban areas.

In terms of technology, the Radio Shack 40-290 incorporates an LCD display that provides clear and easy-to-read information about the current frequency and status of the scan. The scanner also includes a volume control for fine-tuning audio output, as well as a squelch feature that helps reduce background noise when no signal is present.

Among its characteristics is the ability to quickly scan through programmed frequencies, allowing users to discover new channels of interest. Additionally, a built-in alert system notifies users when a new frequency is active, ensuring they never miss important communications. The battery life is commendable, making it a reliable companion for extended usage without frequent recharging.

Overall, the Radio Shack 40-290 is a robust and user-friendly scanner that combines advanced technology with practical features. Its ability to cater to a variety of communication channels and frequencies, along with its portability and durability, make it an excellent choice for both novice and seasoned users alike. Whether for personal use or as an introduction to the world of radio scanning, the Radio Shack 40-290 stands out as a commendable option.