This is Radio Shack's Realistic TRC-451.  Cosmetically, it is identical to the earlier TRC-450.  However, it uses a much less frequency modification-friendly chassis.  Instead of the Uniden MB-8719 PLL chassis, it uses the upd-2824 PLL chassis, identical to the Cobra 146.  Features include the standard fare of Volume, Squelch, R.F. Gain, a receive-only Clarifier, and Mode selection with indicators.  Also included are a PA/Monitor function, and external speaker selector switches, as well as an S/R.F. Meter, display dimmer control, and a modulation indicator.

Receiver performance is exceptional, with both good sensitivity, selectivity, and a low noise floor.  For those who pay attention to signals, the "S" meter is responsive and easy to read, but in typical Uniden fashion, is overly sensitive at the low end, while compressing at the high end.  Both AM and SSB transmit audio quality is excellent.  Power output on SSB will easily hit 20 watts, and AM modulation is good up to about 6 watts of carrier.  PLL frequency mods are not nearly as rewarding as they were with earlier PLL devices.  Far more "exotic" methods need to be employed if you are determined to put this radio where it isn't supposed to be.  The fact that this radio isn't easy to mod for additional frequencies was of no concern to me however, as I wanted it to remain basically stock, although I did unlock the clarifier control as I can't stand the fixed transmit/receive only stock clarifier setups on SSB. 

This radio was obtained as the product of another horse trade, and sees daily use as the local area activity monitor and source for the Streaming audio server.  On a scale of 1 to 10, I give it about a 6, as it is really a good performing radio, even though it's not to best choice for someone looking for a radio with a lot of frequency capability.

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