That's correct Brian. But note that Figure 1 does *not* show a PTT cable.
The note associated with that figure for both of those cables says "E850463 Aux interface cables with male and female connectors.You can order E850463 from Elecraft or you can make your own (See E850463 Aux Cable Wiring, above)." Those are both straight through 15 pin cables as shown in Table 1 on page 4. The wiring is given for those who wish to make or buy a straight through DB15 cable instead of ordering the Elecraft cable. Either will work FB.. The issue is to NOT use a VGA cable, which is not wired "straight through". If you want to use a separate PTT cable for any reason, Figure 2 shows how to do that. That's usually because one needs to interrupt the PTT like such as to inhibit a Stepper-IR controller which cannot tune with full QRO power applied. Thanks, Ron AC7AC From: Brian F. Wruble [mailto:bwru...@gmail.com] Sent: Thursday, August 01, 2013 7:01 PM To: Ron D'Eau Claire Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 Receive Attenuation with KPA500 in Operate Figure 1, Page 4, KAT500 manual *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 9:48 PM, Ron D'Eau Claire <r...@cobi.biz> wrote: Where do you see two DB15 cables in a diagram Brian? Ron AC7AC -----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 4:57 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
