// [TRX] indicates optional arg (RX or TX), RX default
// T|F indicates TRUE or FALSE
// 
// If first char of command is '-', eg
// -setNR ON
// command is not echoed to log output.
// 
// setFilter low-freq high-freq TRX
// setMode mode [TRX]	// mode = USB, LSB, CWL, CWU, etc.
// setOsc freq [TRX]	// freq in Hz (float)
// setSampleRate rate	// Hz (float)
// setNR T|F		// on/off, RX only
// setANF T|F		// on/off, RX only
// setNB T|F		// on/off, RX only
// setBIN T|F		// binaural mode, on/off, RX only
// setNBvals thresh	// float, RX only
// setfixedAGC gain [TRX]	// float
// setRXAGC T|F		// on/off
// setRXAGCCompression lev	// float
// setRXAGCHang dur	// float
// setRXAGCLimit lim	// float
// setTXAGC T|F		// on/off
// setTXAGCCompression lev	// float
// setTXAGCHang dur	// float
// setTXAGCLimit lim	// float
// setTXSpeechCompression T|F	// on/off
// setTXSpeechCompressionGain gain	// float
// setRXEQ <bandspec>	// f0 dB0 f1 dB1 f2 dB2 ... fN
// setTXEQ <bandspec>	// f0 dB0 f1 dB1 f2 dB2 ... fN
// 	// typical:
// 	// 0 dB1 75 dB2 150 dB3 300 dB4 600 dB5 1200 dB6 2000 dB7 2800 dB8 3600
// 	// approximates W2IHY bandcenters
// setRXAGC mode		// mode = agcOFF, agcSLOW, etc.
// setANFvals taps delay gain leak	// int, int, float, float, RX only
// setNRvals taps delay gain leak	// int, int, float, float, RX only
// setcorrectIQ phase gain	// int, int
// setcorrectIQphase phase	// int
// setcorrectIQgain gain	// int
// setSquelch lev		// float, gain, RX only; default -30dB
// setSquelchSt T|F	// on/off, RX only
// setTRX trx		// trx = RX|TX
// setRunState state	// RUN_MUTE, RUN_PASS, RUN_PLAY
// setRXPreScl T|F		// on/off
// setRXPreSclVal valQ	// dB
// setTXPreScl T|F		// on/off
// setTXPreSclVal valQ	// dB
// setRXPostScl T|F	// on/off
// setRXPostSclVal valQ	// dB
// setTXPostScl T|F	// on/off
// setTXPostSclVal valQ	// dB
// setSWCH trx [zap]	// trx = RX|TX, int (always zaps at least 1)
// setSpotToneVals gain freq rise fall // dB, Hz, msec, msec [-12, 700, 5, 5]
// setSpotTone T|F		// turn on, off
// setFinished		// shutdown gracefully
// setRXListen rx		// tell receiver rx to listen to commands to follow
// setRXOn [rx]		// turn currently listening receiver on, or receiver rx
// setRXOff [rx]		// turn currently listening receiver off, or receiver rx
// setRXPan pos		// set azimuth for currently listening receiver to pos (0...1)
// setAuxMixGain [gain [trx]]	// set mixing level for aux inputs
// setAuxMixSt [flag [trx]]	// set aux input mix on/off
// setCompandSt [T|F [trx]]	// *** NB *** trx dflt TX!!!
// setCompand fac [trx]	// probably > 0 for RX, < 0 for TX
// setMeterType type [trx] // set meter type for trx, default rx
// 			// types: SIG, AVG, REAL, IMAG; default SIG
// setSpectrumType [type [scale [rx]]] // set spectrum type, scale, which rx
// 			// types: SEMI_RAW, PRE_FILT, POST_FILT (dflt POST)
// 			// scale: PWR, MAG (dflt PWR)
// 			// which rx dflt 0
// =========================================================================
// reqMeter [label]	// sends entire rx or tx meter block to METERPATH
// reqSpectrum [label]	// sends current spec snapshot to SPECPATH
//