Similar does not equal same. If it were me, I’d rule that out as a possibility be using same FLs.
Exactly. Since the OP is hearing other cites, farther away than the one that is not working, that would indicate to me that the problem is not the scanner (the SDS200).
Fav lists are similar,,, that's not the problem. I moved the radio off the desk and no change. Next move will be to check the cabling between radio and antenna. I was hoping it would be a filter setting but it's not.
Since you are hearing more distant sites, but not the one in question, I doubt your issue would be the antenna, unless you are using a directional antenna, such as a yagi, and it is aimed in a significantly opposite point other than your problem site.
This would suggest to me that your issue is in your Favorites list programming, not an issue directly with the scanner. The easiest way to verify this would be to load your 436HP Favorites list in the SDS200, and see if it works. Or, you could simply append the DTRS from your 436HP into a new list and load that in the SDS200 and see if that works. If it does, then you've confirmed that the issue is with your programming, or settings in the list you use for your 200.
Look at the site in question, in the 200's list. Are
all of the frequencies the same as what is in the database? If using quick keys, is the key for your problem site enabled? Or does your site share a QK with a Department that is Avoided? Again, since the SDS200 receives sites that are farther away than Smelter Mtn., your issue is in how the list is set up. You've already rulled out issues with interference from other devices by moving the scanner around. And, since you state you are not using location control, that rules out the site having an incorrect location or range setting.