As Mike suggested, the Hex file for version 3.0 of the UHF3 DSP program has been posted on http://www.proaxis.com/~boblark/dsp10.htm This is suitable for loading to Flash memory, allowing the DSP-10 to run the DSP program at startup. To find the down load, look for "DSP HEX for DSPx Flash ." I am running this from Flash now. 73, Bob Larkin W7PUA