fastapi calls /freq?lo=[hi/lo]&freq=[freqency]
/gain?chan=[rx0-1/tx0-1]&val=[0-60] gain control
/bias?chan=[0-1]&iq=[I/Q]&val=[-0.4_0.4] bias control
/filter?chan=[rx0-1/tx0-1]&val=[filter_options] filter control filter_options = [ 'bypass', '36MHz', '72MHz', '144MHz', '288MHz', '432MHz', '576MHz', '720MHz' ]
/reset resets lmx