I think what you are talking about is searching from a low frequency to a high frequency, right?
And yes, the scanner can do that. You can actually create 10 independent search ranges. For instance, if you wanted one search range to search between 151 MHz and 157 MHz, you can program one of the 10 search ranges to do that portion of the frequency spectrum. If you want to search for military aviation traffic, between 225 MHz and 380 MHz respectively, you can create a search range to do that portion of the band. Or if you just want to search between the lowest and highest frequency the scanner is capable of receiving, you can do that as well. You can see
In the mama look up custom searches. It'll tell you how to create those custom search ranges. It's not difficult and I think it should be pretty easily understood from what the manual has explained in it.
Brian
COMMSCAN