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16 APPENDIX 2: WAVEFORMS
16.1 QSK (Optional module) Switching
Fig. 4
No “Hot switching”: The output relay (Top trace) switches first, then the RF drive is applied (Bottom trace)
16.2 Linearity
V
V
a=-1674mV,b=1958mV
21Apr2003 18:36
Fig. 5
Sample of linearity curve obtained on a DX-3 at 4000 W PEP output, by using a two-tone generator and a PC
oscilloscope in XY mode.
