GRE PSR-300 GRE PSR-400 GRE PSR-300c GRE PSR-400c Radio Shack Pro-163. MFJ-8322 Registration for PSREdit300 is $20USD per license. Latest Software Updates: PSREdit300 Version 1.34 Release 6 (December 22, 2017). My testing shows that it works as it should even with this set, but you may experience problems.
You need to put the scanner into “manual” mode and go to each locked out channel. Press the “L/out” button on each of these channels to unlock them.
Nornmally this is done to bypass certain channels when scanning so that you can concentrate on others. Go to page 29 and 30 of the manual To clear all locked out frequencies in a search bank: 1: press SEARCH 2: Select the search bank that you want to clear all locked out frequencies 3: Fress FUNC and then L/OUT (Lock List Appears) 4:Press FUNC then 6. To clear entire list press 1 Happy days, lonely hearts!
I'm having a problem myself with my GRE PSR-295. I think it may need to be re-set (I don't know how you revert everything to factory/default settings and clear the memory) as most of the channels scanned, some of them I can barely hear. I can only assume that the receiving frequency that I try to lock onto is off-set by the transmitting frequency of ham stations that would need some alignment on the receiving end. I also am unsure if it could be an aerial problem and what might be done to replace it. Its a shame about this problem, as I do monitor as an SWL for special purposes (e.g. For filming motor races working on a PMR446 net, special event recording, etc.) The only channel I've been able to fully-lock onto is the MSA (Motor Sports Association's) dedicated channel at race tracks.
For some reason that frequency just about works, but at the same time, most of the comms are within a mile line-of-sight. The rest of the time, I can only just hear other frequencies, even coming from my PMR446 walkie-talkies, once again because it seems to not match exactly the transmitting frequency it says on the dial (even taking it in steps doesn't seem to work - would be nice to have a fine-tune mechanism to get the exact lock-on whatever I'm monitoring at the time.