A question regarding a favorite system. once you have added various parameters a favorite system, volum, offset, ctcss, etc, how do I go back to the original set up and change say volume offset, etc?
Sure
No reason that you can’t tweak an existing Favorites list. You might want to just change volume offset on on or more specific channels, or add (or change) the alert light settings for a channel. Change these, or update any of them you want. Just be sure that you save any changes made in the Favorites list editors that they’ll be in place when you download lists to your scanner.
Note that, when sending programmed Favorites to your scanner, you may want to also use the option to delete existing lists during the load process. That’s not a requirement, but if you download a list that exists in the scanner (that were loaded previous), you’ll get a “nag” message from Sentinel that the list that you are writing to the scanner is different than a list, with the same name (that was previously loaded on the unit). Sentinel then asks if you want to replace the list in the radio with the revised list, or send it with a slightly different name.
Deleting the existing data (during the load process) ensures that the scanner only has the lists on the profile you are using (picking the lists to load on the scanner, as well as designating which should be monitored by default). Otherwise, if a list on the scanner, loaded previously but is not in your current profile, might be monitored when you really did not want it there anymore.