It seems like it would be an easy thing to implement in the KPA500. Per Band Standby.
73 jim ab3cv On Mon, Apr 15, 2013 at 11:18 PM, Cady, Fred <[email protected]> wrote: > 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:* [email protected] [mailto:[email protected]] *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 <[email protected]> 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: [email protected] [mailto:elecraft-**** > > > [email protected]] 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 has a 20% discount (APRILBOOKS13) good this month and > > 15% off (POURING) until April 19th. > > > > > -----Original Message----- > > > From: [email protected] [mailto:elecraft- > > > [email protected]] 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 <[email protected]> > > > 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:[email protected] > > > > > > 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:[email protected] > > > > 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:[email protected] > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
