200-channel VHF/Air/UHF Desktop Scanner PRO-2016

The RadioShack PRO-2016 (Catalog No. 20-422) is a 200-channel VHF/Air/UHF desktop scanner produced by Uniden for RadioShack between roughly 2001 and the early 2000s. It is designed for monitoring conventional analog transmissions and does not support digital or trunking systems.

Key Specifications:
According to data from the RigPix Database and the original owner's manual, the PRO-2016 features the following technical specifications:
Frequency Coverage: It receives bands across 29–54 MHz (VHF Lo/Ham), 108–136.975 MHz (Aircraft), 137–174 MHz (VHF Hi/Government), and 406–512 MHz (UHF/Ham).
Memory: 200 channels that can be scanned at a rate of approximately 20 channels per second.
Modulation: Supports AM (primarily for aircraft) and FM modes.
Antenna Connector: Uses a standard Motorola-style (DIN41585) automotive-type antenna connector.
Power: Operates via a 10-volt AC "wall wart" power adapter. 

Notable Features:
Memory Backup: Unlike earlier models that required batteries or capacitors, the PRO-2016 uses non-volatile EEPROM (specifically a MicroChip 24LC16BT) to retain programmed frequencies for decades even without power.
Preprogrammed Weather: Includes direct access to 7 preprogrammed NOAA weather service channels (162.400–162.550 MHz).
Scanning Functions: Features a 2-second scan/search delay to catch replies on the same frequency and a lockout function to skip busy or unwanted channels.
PC Programmability: RigPix indicates the unit is PC programmable, allowing for easier frequency management via an external interface.

User Reviews and Performance:
Ease of Use: Reviewers on Amazon for similar RadioShack desktop scanners note they are generally easy to operate, though the 10-volt AC power requirement is sometimes viewed as less convenient than a standard 12-volt setup.
General Performance: Long-term users frequently praise the durability of RadioShack scanners from this era. On the RadioReference forums, the PRO-2016 is noted for its "greater than 200 years" theoretical data retention due to its EEPROM design.
Limitations: It is a basic scanner; it cannot receive the 800/900 MHz bands commonly used by modern public safety trunking systems, nor can it decode digital signals.

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