[ARC5] What did they talk to ?? - 522

[Gordon White]

     I think the 522 was short-range, as, originally, were the Command 
Sets, the name indicating use to command squadrons, groups, etc.in the 
air in the late 1920s and early 1930s. The liaison sets were 
longer-range. I don't think any VHF reached from bomber bases in the UK 
to Berlin, though HF frequencies certainly could. I'd guess the SCR274N 
sets could reach several hundred or a thousand miles, frequency-wise, 
depending on propagation vs frequency, but with their relatively low 
power and radio noise of thousands of aircraft, I doubt they reliably 
did. Although the antenna height was great, they did not fly much  in 
combat with trailing-wire antennae, but used at best  rudder to fuslage 
antennas that were not optimum.

- Gordon White