The subject is terse, so here is what is happening. I notice a very narrow but steady vertical line on my waterfall which does not move when I QSY. This occurs only in CW mode and I can see it when the SPAN is narrow, ±5 kHz or less. It appears to vary between bands but in the range of -600 to -800 Hz from the center frequency. All other real signals track when I move the VFO, but this one just stays there, as if you drew a vertical line on the display.
As I am writing this description it occurred to me that it may be related to the CW sidetone, and sure enough, when I adjust the PITCH, the offset varies in relation to the center frequency of the P3 display. In other words, when I raise the PITCH frequency the trace moves upwards; decreasing the delta between center and trace frequencies, and vice versa. I put the radio in REVERSE CW mode to see if the trace would move to the positive side of the center frequency, but it just disappears. I am a total novice to panadaptors or spectrum analyzers, so if this is a normal "thing", I am unaware. It really does no harm, but I noticed it because I am using the waterfall a lot this weekend during the SKCC Weekend Sprint and I mistook it for a carrier that could never be heard. I can not say whether it has been there all along or is a new quirk, as I just noticed it today. I have removed and replaced all connections to the P3, ensuring their proper fit and tightness. Any thoughts? -- View this message in context: http://elecraft.365791.n2.nabble.com/P3-Continuosly-Offset-Waterfall-Trace-tp5523982p5523982.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ 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
