On Sat,12/5/2015 10:12 AM, Cady, Fred wrote:
I've summarized some of my thoughts here: http://www.ke7x.com/home/guide-to-the-k3/should-i-update-my-k3-with-k3s-parts
I've upgraded my K3s with the new synth board and the KXV3B board. You don't need to buy a book to know what I think about it.
I found both upgrades quite worthwhile. The synth board makes your signal cleaner and reduces RX phase noise when the band is full of strong signals. It can be a very big deal in contests and with big DX pileups. The new synth board, combined with a mod to the KBPF3, also enables high quality reception below 500 kHz.
It's VERY easy to install. Guys running QRQ say that it improves high speed CW significantly (I rarely work above about 34 WPM). If you have the Sub-RX, you must install two of the new boards.
The KXV3B includes the new preamp, which helps a lot with weak signals on 12, 10, and 6M. Installation is more of a challenge mechanically, because physical tolerances make it a bit of a "shoehorn job."
That's as far as I've gone with upgrades -- I'll upgrade to the new KIO3B only if it corrects the glaring Pin One Problems present in the original KIO3, which I consider the biggest design mistake Elecraft ever made.
73, Jim K9YC ______________________________________________________________ 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]
