Awesome work, will have to put them into scan. These are kinda similar to the hf channel that used to get more USAF activity than it does now, 6761. That freq was treated like a party line for bombers, tankers, everyone.
On the presets, these vary according to the unit, each craft of a given unit will have the same presets.
Neacp/tacamo/glass flight burning mux on 338.950MHz 1929Z 16JUL19
I’ve heard chatter on 6761 kHz USB a few times too.
In a weird way, it’s like the pescadores and freebanders on HF. They like easy-to-remember frequencies. 343.400 MHz, 6666.6 kHz, 6363 kHz, 40.40 MHz, 30.30 MHz, 45.45 MHz, 7676.7 kHz and so many others come to mind. Frequencies like 123.450 MHz and 246.800 MHz are super easy to remember. Same with the often-overlooked 137-144 MHz and 148-150 MHz VHF bands (25 kHz steps, shared with military users using FM and P25 digital in 12.5 kHz/25 kHz steps).
I know the Air National Guard in my area uses 140 MHz and 141 MHz freqs (in AM mode) in addition to the usual UHF band frequencies, plus a couple FM tactical band channels (namely 38.500 MHz, 38.550 MHz and 49.725 MHz, I presume there are others I don’t know about) for air to air chatter. The National Guard also appear to use over a dozen different repeated frequencies in the 148 to 150.8 MHz range for tactical comms, only instead of AM or FM voice, they use encrypted P25 digital voice (12.5 kHz channel steps).
Oh, also 282.800 MHz - aka “Hard Luck” - which is also the search and rescue/survival radio alternate frequency to 243.000 MHz. I imagine use of 282.8 MHz for air to air chat is frowned upon, but yes, you’ve got some hard luck if you have to use your survival radio....
I don’t know how many scanner channels you have to work with Josh, but here’s another “button” list for the USAF, apparently used for “auxiliary” purposes, such as air to air chat maybe.
265.500 MHz - “Button 1”
266.600 MHz - “Button 2”
267.600 MHz - “Button 3”
268.600 MHz - “Button 4”
269.900 MHz - “Button 5”
270.100 MHz - “Button 6”
271.600 MHz - “Button 7”
272.700 MHz - “Button 8”
273.500 MHz - “Button 9”
274.800 MHz - “Button 10”
275.800 MHz - “Button 11”
276.400 MHz - “Button 12”
277.200 MHz - “Button 13”
278.400 MHz - “Button 14”
279.400 MHz - “Button 15”
280.500 MHz - “Button 16”
281.200 MHz - “Button 17”
282.800 MHz - “Button 18”
283.000 MHz - “Button 19”
284.200 MHz - “Button 20”