What scanner are you using? What antenna? This area is full of planes to hear. Freqs are all over the place in the rrdb. KLSV/KINS/KLAS/KVGT/KHND. Check airnav.com as well for the airport info on these five airports. OBTW if you are near KHND on the 25th of Mar look for FIFI she's coming back for a visit. I attached a freq list for Nellis in this forum check for Nellis Help.
Since the planes are usually high they're really easy to pickup on a scanner. There are antennas especially designed for the aviation band you want to try. Do a search!
The Pro 43 might have some issues with the new frequency allocations, for civil aviation. The good news is that it does well on the military aviation band.