Full power SSB spectrum of a IC7800 on 14 MHz. The clipper is off and the tx gain is set for normal ALC. The serial number 0301012.



Full power SSB spectrum of a IC7800 on 14 MHz. The clipper is on and the tx gain is set for normal ALC. The serial number 0301012.
Note that the A/D converter has saturated This spectrum may be inaccurate, the real improvement as compared to the above image in which the clipper was not used may be a little larger than this spectrum indicates. The shape of the spectrum does not look like typical saturation spurs so it is reasonable to assume that saturation did not affect this spectrum. The serial number 0301012.



Full power SSB spectrum of a IC7800 on 14 MHz. The clipper is off and the tx gain is set just below the point where ALC starts to act. The serial number 0301012.



Full power SSB spectrum of a IC7800 on 14 MHz. The clipper is on and the tx gain is set just below the point where ALC starts to act. Unlike all other ssb spectra recorded at the 2004 SSA meeting, this one is not "worst case voice", this spectrum is with a prolonged "aaaaaaaaaa" into the microphone. The serial number 0301012.