In answer to Joe Planisky, here's my rehash on hash. My K3 which is factory built still has some tuning hash but it's now at a much lower in level, doesn't move the s-meter (with or without preamp) and is only centered around 28000 +/- 5 KHz. I can barely hear it now. I haven't added the h/w mod. Because this K3 is factory built and never been opened, lets assume it is properly built with cables and fasteners properly positioned and seated.
Eric's comment: <<The h/w mod does not really impact the noise at all. It is required though and is there to maintain reliable signaling between the main processor and the synthesizers when the CPU to Synct serial bus speed is increased with SPI=2. Its the change to SPI=2 that reduces the noise.>> I've read some conflicting comments on the need to make the h/w mod. I gather it's Eric's position that it's necessary to keep the signals clean between the main MCU and synthesiszers. Before seeing this latest comment I was left thinking the h/w mod would also further reduce the tuning hash. With all this in mind I can live with small amount of remaining tuning hash. And, this K3 has been running in this configuration for almost a month without any signs of problems that could relate to omitting the h/w part of change. Cheers to the Elecraft team. John, W1QS K3 s/n 2274 K2 s/n 4204 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
