On Wed, Apr 27, 2011 at 7:33 PM, Raymond Anderson <rayk8...@gmail.com>wrote:
> > You would only need to mod the main board as the second is never used on > transmit so does not have a problem. True but Elecraft recommends doing both boards if you have the KRX3: "If your K3 is equipped with the KRX3 subreceiver it will have two KSYN3 synthesizers. Both boards should be modified if the user chooses to make this modification." http://www.elecraft.com/manual/ELECRAFT%20KSYN3%20Stiffener%20Mod%20Rev%20D.pdf I believe this is to prevent accidentally swapping the KSYN3 boards if you ever needed to remove them (although it's fairly easy to tell them apart because of the shield). I actually did this mod to both K3SYNs, not because of acoustic modulation issues, but because I felt the stiffener might provide additional RF shielding. 73, Bill W4ZV ______________________________________________________________ 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