Doug, you need an oscilloscope and ideally trigger it from the key line. For an example of the sort of problems some radios have see: http://www.astromag.co.uk/ft857d/
Connect the radio to a dummy load (no amplifier needed), set the radio for a drive level in the 10 - 30 Watt region and send a single "dit" on the key. Even without a storage 'scope you can repeat the dit and see if the envelope is clean or not. While the KPA500 may show the spike as a momentary peak on the bar graph, even my LP-100 power meter isn't anywhere near as good as a 100 MHz 'scope at seeing what is really going on. It is not always the leading edge of a CW character that causes problems, the FT857D created spikes during SSB speech too. I have not tried a TS590, my TS480SAT is clean as is my K3. 73 Dave, G4AON >I'm not sure how to observe the >spiking you mentioned ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
