Thanks Frank. Note that with K3 firmware 5.58 and above, preamp 2 is usable on 17-6 m.
cheers, Fred KE7X For all KE7X Elecraft books, see www.ke7x.com ________________________________ From: [email protected] <[email protected]> on behalf of [email protected] <[email protected]> Sent: Saturday, June 10, 2017 10:13 AM To: Elecraft Reflector Subject: Re: [Elecraft] Preamps in K3s Hi Jim, Fred Cady's excellent K3 Manual, 3rd edition, spells it out in detail in Table 7-3. "The firmware prevents you from making these choices. The hardware cannot handle a 30 dB preamplification." 73 Frank W3LPL ----- Original Message ----- From: "Jim Miller" <[email protected]> To: "Bob McGraw K4TAX" <[email protected]> Cc: "Elecraft Reflector" <[email protected]> Sent: Saturday, June 10, 2017 3:31:09 PM Subject: Re: [Elecraft] Preamps in K3s I likewise read all info in the K3s manual. Your interpretation is one that could be true but it isn't spelled out. 73 Jim ab3cv On Jun 10, 2017, at 11:22 AM, Bob McGraw K4TAX <[email protected]> wrote: I had to refer to the manual for this. Pre 1 is available for all bands and has 10 dB gain. Pre 2 is available for 12/10/6 M and has 20 dB gain. They are not stacked. Bob, K4TAX Sent from my iPhone > On Jun 10, 2017, at 9:48 AM, Jim Miller <[email protected]> wrote: > > I'm confused a bit about how the Preamps in my K3s work. > > When Preamp2 is engaged are the preamps stacked for a total of 30db > additional gain or does the Preamp2 engagement disengage Preamp1 for a > total of 20dB? > > Or perhaps they are both engaged for a total of 20db with Pre2 boosting > over Pre1 by 10db? > > 73 > > jim ab3cv > ______________________________________________________________ > 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] > ______________________________________________________________ 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] ______________________________________________________________ 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] ______________________________________________________________ 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]
