Eric - I've switched the settings back to SPI1 until I have the parts to perform the HW modification. I'm curious however; SPI2 totally eliminated the noise for me even without the hardware mod in place. The communication errors you mentioned, could those lead to permanent hardware failure if someone where to use SPI2 without the resistor/diode combination? Anyway, when I was beta-testing this release, there wasn't any mention in the release notes of a hardware change being required in order to use those functions, hence my surprise.
James K2QI -----Original Message----- From: Eric Swartz - WA6HHQ, Elecraft [mailto:e...@elecraft.com] Sent: Friday, August 14, 2009 2:36 PM To: James Sarte Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 VFO Tuning noise reduction Yes, you absolutely must make the h/w mod for the diode/resistor change if you enable the tuning mod in the K3 menu. If you do not make the h/e change, and then enable this feature in the menu, there may be intermittent synthesizer communication failures in your radio (which could be temperature dependent etc.) 73, Eric WA6HHQ James Sarte wrote: > I had a tuning noise issue on 60m, but nothing noticeable anywhere else. Is > the hardware mod really necessary if the firmware successfully suppresses > the encoder noise? When I have SPI2 on in firmware, it totally eliminates > all ticking noise previously heard around 5MHz. It would seem to me that > unless the firmware can't remove the noise alone, then the hardware mod is > unnecessary? > > 73 de James K2QI > ______________________________________________________________ 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
