This is the Uniden HR-2510, a 25 watt 10 meter all mode amateur radio. Standard features included Volume, Squelch, R.F. Gain, and a receive-only RIT (Clarifier) control. Other features included a P.A. function, a switchable "roger beep" (blech!), a two position Mike Gain switch, and an effective Noise Blanker. The 10 segment LCD bar graph meter included S/R.F. and SWR functionality. Performance-wise, transmitter power output could reach close to 50 watts on SSB. However, AM carrier power should not be set above 12 watts if you want to maintain 100% modulation capability. The receiver was sensitive and fairly selective, although tighter bandwidth filters would make it more enjoyable to use on 10 meters when the band is wide open. This radio also had an annoying "feature", where if you added an amplified microphone (I used an Astatic D-104M), you would feedback through the internal speaker (A sort of "talk-back"), if the mike level was up too high, which necessitated a modification to eliminate.
This radio however, wasn't nearly as popular with hams as it was with freeband CB'ers, due mostly to the ease at which this radio could be made to run on 11 meters. It seems that the manufacturer had every intention of catering to this large, potentially profitable, but illegal market. The frequency plan for the CB band, as well as the upper and lower portions of the "freeband", were included in the factory microprocessor's tuning tables, which only required a simple modification to enable. This radio was the next phase in the evolution of a true "freebander's" radio, and a step above the so-called "export" CB radio, which normally used many cumbersome bands of 40 channels to achieve its frequency range. Instead, the 2510 had a continuous "VFO" style frequency selection with a step size which was selectable down to a 100 Hz resolution. The total frequency range (once modified) was 26.000.0 to 29.999.9 Mhz. For those who didn't want to turn the dial quite so much, there were also programmed band segments which allowed you to make large "jumps" in frequency. There was even a standard 40 channel (plus RC's) CB "band" included.
The FCC was not too happy with the number of these radios which found their way onto the CB band and Uniden, under increasing pressure, started making half-hearted "attempts" to limit the ability to mod this radio. But those attempts consisted of little more than an easy to remove epoxy coating over the pins on the microprocessor, and a little leaflet included in the radio's packaging which warned of the consequences of illegally modifying the radio. Hardly a sincere effort. Eventually this radio was replaced with the HR-2600, a similarly featured radio, which no longer included the CB bands, but included some additional enhancements for 10 meter FM use. That radio, predictably, did not sell so well. Aftermarket companies offered custom microprocessors (such as the Chipswitch), which would add the 11 (and 12) meter band to the 2600 and add additional features and functionality to a 2510 as well.
This radio continues to be a good, and well sought after performer, even though it is no longer being made. Although there are some issues that potential buyers need to be aware of. The original transmit final transistor, the MRF 477 has been discontinued, and supplies have all but dried up. If you run out of spares, you are basically left with few options. It is possible to adapt a Japanese replacement transistor, but power output will likely be less. You can also retrofit the beefier MRF-450, 455 or similar stud mount "pill" type transistors. Power output will still not be as good as the original, but it will be a more reliable device.
The radio pictured was obtained new in 1988, and has operated flawlessly for me since. On a scale of 1 to 10, I give it about a 6.