20-310.fm Page 32 Wednesday, August 4, 1999 10:49 AM

SPECIAL FEATURES

USING THE KEYLOCK

Once you program your scanner, you can protect it from accidental program changes by turning on the keylock feature. When the keypad is locked, the only controls that operate are LIGHT (see “Using the Display Backlight” on Page 34), VOLUME, and SQUELCH.

Note: The keylock does not prevent the scanner from scanning channels or monitoring a single channel, which- ever feature you last selected.

To turn on the keylock, press and hold for about 3

seconds until appears on the display. To turn it off,

press and hold for about 3 seconds until disap- pears from the display.

LOCKING OUT CHANNELS

You can increase the effective scanning speed by locking out individual channels that have a continuous transmis- sion, such as a weather channel (see “National Weather Frequencies” on Page 36) or birdie frequency (see “Birdie Frequencies” on Page 37). To lock out a channel, select that channel then press E/L-OUT. L/O appears on the dis- play.

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Radio Shack PRO-70 owner manual Special Features, Using the Keylock, Locking OUT Channels
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PRO-70 specifications

The Radio Shack PRO-70 is a compact and versatile handheld scanner that caters to both novice enthusiasts and seasoned hobbyists. Launched in the early 1990s, the PRO-70 exemplifies the functionality and accessibility that users seek in a portable scanning device. Its design is lightweight and ergonomic, allowing for easy handling during extended use, whether at home or on the go.

One of the standout features of the PRO-70 is its ability to scan multiple frequency ranges. Operating on VHF, UHF, and other bands, it covers a comprehensive spectrum that includes public safety, amateur radio, and various commercial communications. This wide frequency range empowers users to stay informed about local news, events, and emergency situations.

The scanner boasts a powerful memory bank, often allowing users to store over 100 channels, which can be easily programmed and accessed. The inclusion of priority channels enables users to monitor essential frequencies while still scanning other channels, ensuring that important communications are never missed. The programmable scan feature is particularly beneficial, allowing enthusiasts to customize their scanning experience according to personal interests or needs.

In terms of technology, the PRO-70 utilizes advanced digital signal processing to enhance audio clarity and reception quality. This feature enables users to receive crisp and clear transmissions, particularly in areas with weaker signals. Additionally, the scanner incorporates a durable and long-lasting rechargeable battery, providing extended use without the frequent need for battery replacement, which is an essential consideration for avid users.

The user interface of the PRO-70 is designed for ease of use, with an intuitive layout of buttons and a simple LCD display that presents critical information clearly. Users can easily navigate through channels, adjust volume levels, and set scanning parameters without a steep learning curve.

Overall, the Radio Shack PRO-70 represents a significant entry in the world of handheld scanners, marrying practicality with technology. Its robust features, combined with the flexibility of frequency coverage, make it an ideal choice for both casual listeners and serious scanning enthusiasts. The scanner’s reliability, affordability, and ease of use solidify its reputation as a valuable tool for anyone looking to connect with their community and beyond through the world of radio communications.
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