Yes. Experienced Hams know two things about bad reports: 1) Never EVER accept one station's report. All too often it's cockpit trouble at the other end or a bad rx. That doesn't mean not to be polite. But politely accept the report and go on to 2)
2) Check the report on your standby receiver. No standby or second receiver? Then contact someone fairly close by and have them look for the same spurs. However, it's good Amateur practice to have a standby receiver. It does not need to be "state of the art". If anything, the less "state of the art" the better. A simple, single conversion superhet or direct conversion receiver is best for looking to see if a reported spur is present because they have the fewest internal spurious responses. Modern multiple conversion and SDF receivers are always suspect when noting spurious responses. Top of the line receivers, like the Elecraft rigs, are the least problematic, but I still turn to a simple single-conversion superhet to see if there's a spur. Even a single conversion superhet has spurious responses but, owing to its relative simplicity, they are easy to anticipate with a little arithmetic. 73, Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John/K8AZT Sent: Tuesday, January 24, 2012 5:16 PM To: [email protected] Subject: Re: [Elecraft] K3 spurious radiation? Thank you Tom, Geof, and Eduardo for responding. I feel a bit better that I am not alone experiencing this situation, however want to prove it is not from my rig. I started wondering since the skimmer rx's are sdr's, this might have something to do with digital sampling aliasing. If the ADC's don't have sufficient anti-aliasing filters, strange results can result from not sampling at a sufficiently high frequency. I wonder what the sampling frequencies are for the sdr's used? Something more for me to research. Again, Tnx all for the input. 73, John/K8AZT ______________________________________________________________ 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
