Hi Jim, What I'd like to be able to do is to disable the amp on some bands (e.g. 30 m), by asserting (low) DIGOUT1 (and setting KPA500 INHIB IN to ENABLE) but to have the amp enabled for 6m when DIGOUT1 is low to turn on the PR6. I'm just lazy, that's all. Plus it's fun to think about! Cheers, Fred
Fred Cady fcady at ieee dot org From: jtmille...@gmail.com [mailto:jtmille...@gmail.com] On Behalf Of Jim Miller Sent: Monday, April 15, 2013 8:52 PM To: Cady, Fred Cc: Elecraft Reflector Subject: Re: [Elecraft] PR6 Clarification I'm not getting the importance of a Pin 11 solution. I just disable the KPA500 sensing of that pin by the menu selection. I don't see the need for it. I'm definitely running the KPA500 on 6m. If for some strange reason Pin 11 is asserted it just causes the KPA500 to be inhibited, not turned on, which is a failsafe direction. 73 jim ab3cv On Mon, Apr 15, 2013 at 9:50 PM, Cady, Fred <fc...@ece.montana.edu<mailto:fc...@ece.montana.edu>> wrote: Ahh, looking back at my notes I see the other solution would be to make the KPA500 INHIBIT IN be per/band. But you would still have to take care of not turning on the PR6 when DIGOUT1 is low with some external logic if you cared about that. KE7X Fred Cady fcady at ieee dot org > -----Original Message----- > From: > elecraft-boun...@mailman.qth.net<mailto:elecraft-boun...@mailman.qth.net> > [mailto:elecraft-<mailto:elecraft-> > boun...@mailman.qth.net<mailto:boun...@mailman.qth.net>] On Behalf Of Cady, > Fred > Sent: Monday, April 15, 2013 7:42 PM > To: 'Elecraft Reflector' > Subject: Re: [Elecraft] PR6 Clarification > > K4RX's inhibit line inhibiter for pin 11 is the same idea as the > keyline inhibiter for pin 10. However, it is not really needed because > one can set the KPA500 INHIB IN menu to DISABLE so a low on pin 11 will > not inhibit the amp accomplishing the same thing as pulling pin 11 from > the connector. Of course pulling the pin is a fail-safe solution. What > is really needed is some logic that blocks pin 11 from the KPA for 6m > (assuming you want the amp on for 6) and passes it for the other bands. > That way you could inhibit the amp on, say, 30 m or other bands where > there might not be a good match. I worked up a circuit to do this once > upon a time and should dust it off again. > 73, > Fred > > > Fred Cady > fcady at ieee dot org > "The Elecraft K3: Design, Configuration, and Operation Second Edition" > > BTW, www.Lulu.com<http://www.Lulu.com> has a 20% discount (APRILBOOKS13) good > this month and > 15% off (POURING) until April 19th. > > > -----Original Message----- > > From: > > elecraft-boun...@mailman.qth.net<mailto:elecraft-boun...@mailman.qth.net> > > [mailto:elecraft-<mailto:elecraft-> > > boun...@mailman.qth.net<mailto:boun...@mailman.qth.net>] On Behalf Of Jim > > Miller > > Sent: Monday, April 15, 2013 7:25 PM > > To: Terry Posey > > Cc: Elecraft Reflector > > Subject: Re: [Elecraft] PR6 Clarification > > > > I believe the Key line interrupter interrupts pin 10 rather than pin > 11 > > after reviewing the K3 and KPA manual. I don't use the Pin 11 option > on > > the > > KPA (it's disabled) rather use the keyline interrupter and RCA jack > > cabling > > to interface all the keying interruption which includes my antenna > > switch. > > > > Thanks for your concern and don't hesitate to correct me if I've made > > an > > incorrect assessment. > > > > 73 > > > > jim ab3cv > > > > > > On Mon, Apr 15, 2013 at 9:06 PM, Terry Posey > > <tpo...@nettally.com<mailto:tpo...@nettally.com>> > > wrote: > > > > > Hi Jim - > > > > > > You are well on your way to 6m success with the > K3/KPA500/KAT500/PR6 > > line > > > up. However, there is one more issue you will need to address in > > your > > > cabling system. The K3's Digout1 signal is asserted on the PIN 11 > of > > the > > > AUX cable. That presents a conflict with the KPA500 INHIBIT on PIN > > 11 on > > > the cable bus between the K3, PR6, KPA500, and KAT500. PIN 11 > needs > > to be > > > "interrupted" before passing the Digout1 signal onto the KPA500 and > > KAT500, > > > yet still sending the PIN 11 Digout1 signal to the PR6. > > > > > > I purchased a HD15 male/female "port saver" adapter from the Web > ($5) > > and > > > removed PIN 11 with pliers. Install the "Y" cable at the K3 ACC > > port, then > > > connect the PR6 to one side of the "Y" cable. Install the PIN 11 > > > interrupter "port saver" adapter on the other side of the "Y" cable > > and > > > attach the HD15 cable connections to the KPA500 and the KAT500. > > > > > > I hope this helps. > > > > > > 73, > > > Terry K4RX > > > > > > > > > I'm just getting going on 6m with my K3/KPA500/KAT500. I'm getting > > ready to > > > order a M2 6M5XHP. My feedline consists of 150ft of LDF5-50 to the > > tower > > > then about 40ft of Buryflex in the tower run and various pigtails. > So > > my > > > feedline losses should be relatively low. > > > > > > Based on various threads I've decided to go ahead and get the PR6 > but > > want > > > to make sure I understand how to use it. It appears that it is > > bypassed > > > completely by the K3 on the transmit path to the KPA100 which then > > goes to > > > the KPA500 and KAT500 then to the antenna. > > > > > > On receive the path back from the KPA/KAT is passed thru the PR6 > > > automatically as long as it is powered and the RXAnt is selected > for > > 6m. > > > > > > So no fancy additional cabling required other than Power/Digout1 > and > > the > > > RXin/RXout pair. > > > > > > My Beverages will just connect now through the PR6 supplied input. > > > > > > All good? > > > > > > Jim ab3cv > > > > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net<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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net<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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net<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 ______________________________________________________________ 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
