Brian, please also visit the KAT500 Utility's "Edit Configuration" page and check that you've clicked the button that says "Optimize for KPA500" if you have a KPA500. With that info, the KAT500 can interrupt the KPA500's key line whenever it needs to in order to tune.
73 de Dick, K6KR -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian F. Wruble Sent: Thursday, August 01, 2013 16:57 PM To: Cady, Fred Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 Receive Attenuation with KPA500 in Operate F red, thanks. I am using that cable both places where my diagram says "DB15 Cable". I guess I needed to have invested in only one. Everything seems to work, and the tuner protection works as well. I proved that by lowering K3 output power to 5 watts (just to be safe), allowing the KPA500 to key and asking the KAT500 to re-tune. it refuses to do so. That is the right result. 73, Brian *Brian F. Wruble, C.F.A. *70 is the new 40.* * Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930 eFax 305.768.0278 On Thu, Aug 1, 2013 at 7:08 PM, Cady, Fred <fc...@ece.montana.edu> wrote: > Hi Brian, > Make sure you are using a KPAK3AUX cable somewhere between the K3 and > the KPA500. It can be between the K3 and the KAT or the KAT and the > KPA. You can use a full DE15HD cable other places but the KPAK3AUX > cable needs to be in there somewhere. > Cheers, > Fred KE7X > "The Elecraft K3: Design, Configuration and Operation" > "The Elecraft KX3 - Going for the Summit" > (soon - "The Elecraft K-Line - KPA500 and KAT500") > > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net [mailto: > elecraft-boun...@mailman.qth.net] On Behalf Of Brian F. Wruble > Sent: Thursday, August 01, 2013 4:17 PM > To: d...@w3fpr.com > Cc: Elecraft Reflector > Subject: Re: [Elecraft] K3 Receive Attenuation with KPA500 in Operate > > Hi Don, > > Thanks for the prompt response. > > Yes, I am using the DB15 and the PTT line. I got it working. Here is > my new cable lineup: > > > > > 1. ACC on K3 (DB15) >>> DB15 Y Cable | >>>DB15 Cable >>> "XCVR" > (DB15) On > KAT500 > | > And | >>> "ACC" > on Navigator Interface > > > 2. "RS232" on K3 >>> "XCVR" (RS232) on P3 > > > 3. "PC" on P3 >>> "RS232" on Navigator Interface > > > 4. "AMP" on KAT500 (DB15) >>> DB15 Cable >>> "AUX1" (DB15) on KPA500 > > 5. NO PTT LINE into KPA500 or into KAT500 > > 6. No "Key Line Interupter" anyplace. > > > With this lineup, is the KAT500 protected from the KPA500 keying when > the > KAT500 is tuning? > > I must admit, I have mightily confused myself in this process. > > Thanks again, > > Brian W3BW > > > > *Brian F. Wruble, C.F.A. > > *70 is the new 40.* > * > Mail: 1107 Key Plaza, PMB 447 Key West, FL 33040-4077 > Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD > 21930 eFax 305.768.0278 > > > > > > > > On Thu, Aug 1, 2013 at 5:01 PM, Don Wilhelm <w3...@embarqmail.com> wrote: > > > Brian, > > > > I have heard this before, and as I recall it has to do with the DB15 > > cable and the PTT cable when used together. > > > > Are you using the PTT cable in addition to the cable from the K3 ACC > > cable? If so, pin 10 of the cable should not be included. See the > > note on page 8 of the KAT500 manual. > > > > Normally you would not have to use the PTT cable with the K3. See > > pages 3 and 4 of the KAT500 manual. For this arrangement, piin 10 > > of the ACC cable must be present. > > > > If you have other devices that need access ti the K3 Key Out line, > > you would use the PTT cable AND use the key line interrupter to > > disconnect pin 10 from the DB15 Interface cable without the need for > > removing pin > 10. . > > > > 73, > > Don W3FPR > > > > > > On 8/1/2013 4:30 PM, Brian F. Wruble wrote: > > > >> Hi all: > >> > >> I am running a newly assembled "K-Line" --- K3/100, KPA500 and KAT500. > >> The > >> K3 is pretty "loaded" with KRX3, KAT3, KXV3A, etc. > >> > >> I just noticed that received signals are down 4 S-units when the > >> KPA500 is in Operate. In Standby, signals pop right up. > >> > >> Reading past reflector emails on the topic, I found one thread that > >> suggested this may have to do with the state of the KPA500 PTT. I > >> found that pulling the PTT RCA plug out ended the problem. > >> > >> Then I replaced the PTT plug, and still had no problem. However, > >> once I actually transmitted, and the PTT acted to key the KPA500, > >> the problem recurred >>> Low sigs when the amp is in Operate, Full > >> sigs when in Standby. > >> > >> > >> > > > ______________________________________________________________ > 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 > ______________________________________________________________ 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 ______________________________________________________________ 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
