On 4/26/2016 10:15 PM, Robert Vargas-KP4Y via Elecraft wrote: > Just that you know, K9CT has one of the finest contesting station in > the US. He has switched to direct-sampling SDRs (Flex-6700). Just ask > him if this architecture is 5 years away from being competitive.
>While I do not know for sure, I suspect K9CT is using bandpass filters and stubs to prevent inter-station interference in his multi-multi operation just >as he did when he used conventional transceivers. With properly designed bandpass filters, stubs and the preselectors in his 6700s he's not likely to >have a severe overload issue unless he happens to be close to some high power AM stations (on 160 meters) and even then indications are that a good >highpass filter and 10 to 15 dB of attenuation will resolve the problems with a 16 bit ADC. Yes, I can confirm K9CT uses BP filters on his 6700's. His main reason for switching to mostly 6700's at his contest station was for the "simplicity" of being able to operate SO2R or multi -2 without the need for all the access cables and extras required with the K3 set up. The WiFi ability that comes with the Maestro made networking wireless as well. I believe he still uses a K3S or two at his home station and uses K3S's on DXpeditions. There are conditions and reasons where each platform can win, with proper configurations, tools and expectations. Gene, N9TF Society of Midwest Contesters ______________________________________________________________ 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 Message delivered to [email protected]
