I Dont Know What this is, HELP!

[KX8W]

I bought what looks like some kind of sdr at Dayton, would anyone happen to know what is or have any websites or manuals I could use? Heres what I know: On the back it says Maxon Electronics and Made In Korea. Serial no. 910701195. Model no.DR-0520c. The only IC is a MC3359P and also says QHWP9122. The IC also has the motorola M symbol on it. It also has a crystal that says R498.4125 and KONY on it. Any help at all is appreciated.IMG_20120527_152205.jpgIMG_20120527_152117.jpgIMG_20120527_152134.jpg

[K7JEM]

That's a Maxon crystal controlled link transceiver, were built back in the 90's. They were primarily used for low speed data operations between a central station and a remote location that needed telemetry. That one may not be able to tune down to the ham bands, and is of limited use, other than parts, etc.

Joe

[K1ZJH]

The MC3359 is a complete narrow band FM IF chip in itself. That is probably a double-conversion
single frequency UHF data link receiver as Joe noted.

I've used similar units for UHF control links for 2 meter repeaters, and that's about all they are
good for. A crystal to put it in the ham band is going to cost at least 30 bucks, and there is no
guarantee that the preselectors will even reach below 450 MHz.

Pete