Great! Thanks for the detail. Table 2 on page 8 of the KAT500 manual should have given you the exact connections you needed to make for the Molex to KAT500 cable. Note that the plug o the KAt500 end is stereo with tip, ring and sleeve. Please recheck these connections to make sure that pin 4 of the Molex does indeed go to the sleeve of the mini-phone plug. It would be best to ohm out the cable to make sure the signals go to the right places and there are no shorts between pins.
Table 3 on that same page shows the Key-line connections, which I suspect are correct at the point. In any case be sure to check that cable as well. 73! Jack, W6FB > On Dec 30, 2018, at 4:13 PM, Ken B <[email protected]> wrote: > > Good evening > > The Icom IC-7600 KAT500, and KPA500 are each grounded to a single terminal > strip with a #10 cable directly to a ground rod 15 ft away. The rod is 12 ft > deep. Both the KAP and KTA were factory built as my soldering skills have > diminished since the Army training. > > > The IC7600 > - In the back of the 7600 is a 4 conductor molex connector. The Icom made > cable splits into 2 connections on the KAT, the first is plugged into DC > power, and the second is plugged into the Tuner connection > > - In the back of the 7600 is also a 7 conductor DIM connection (Acc2). I made > a cable to connect pin 3 to the KAT PTT RLY > > > The KAT > - Other than mentioned above ant1 goes out to the antenna > - XMTR is connected via a 2 ft piece of LMR400 to the output of the KAP > - The unlabeled connector above the PTT RLY goes to the PA Key of the KAP > > > The KAP > - Other than what is mentioned above the only other connection is a piece of > LMR400 from Ant1 on the 7600 to input on the KAP. > > From: Jack Brindle <[email protected]> > To: "[email protected]" <[email protected]> > Cc: "[email protected]" <[email protected]> > Sent: Sunday, December 30, 2018 5:31 PM > Subject: Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable > > Yeah, but we really want to get the problem solved so you can enjoy your > KPA500 and KAT500 as much as we enjoy ours. > That connection list will be most helpful in this effort. > > My thinking on the ground issue is that the power-plug ground is completing a > circuit that should not exist and thus disrupting > operations on band change. The question would be what is connected to ground > that should not be, and where? > Are the KPA and KATs kits or did they come assembled? > > 73! > Jack, W6FB > >> On Dec 30, 2018, at 2:22 PM, Ken B <[email protected] >> <mailto:[email protected]>> wrote: >> >> Please allow me to clairify. Everyone deserves time off. I work 60 to 70 >> hrs per week and appricate the down time >> >> Sent from Yahoo Mail on Android >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature> >> On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle >> <[email protected] <mailto:[email protected]>> wrote: >> The folks in Watsonville are taking a well deserved rest, but some of us are >> still around. This sounds a lot like a grounding issue in your setup with >> ground being completed through the wall power ground pin. Tell me exactly >> all of the cables/connections going to the KPA500 (and from where). While >> you are at it you might as well do the same for the KAT500. I’ll try to >> decipher what is going on from this information and hopefully get a good >> solution for you quickly. >> >> 73! >> Jack, W6FB >> Elecraft Engineering >> >> >> > On Dec 30, 2018, at 1:55 PM, Ken B via Elecraft <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > Thanks for the suggestion >> > Sorry for the delay the wife and I went out. The only way I can get it all >> > to work properly is to:- Remove AC power from the AMP (simply turning it >> > off dowes not work) - On the radio (icom 7600) select the band (ensure >> > auto tuner on Radio is off) - On Radio select AM and depress PTT - While >> > holding PTT, hit the tune button on the KAT500 - Let if get to 1.2 and >> > stop - Let go PTT and select SSB on Radio- Plug in AC power to KPA and >> > power on - On KPA select the proper band- On the KPA select operate from >> > Standby >> > All works until I change bands then it is start from the top Cleared all >> > memory >> > Wish Elecraft was open on Monday. >> > ThanksKen >> > >> > From: Don Wilhelm <[email protected] >> > <mailto:[email protected]>> >> > To: "[email protected] <mailto:[email protected]>" >> > <[email protected] <mailto:[email protected]>>; >> > "[email protected] <mailto:[email protected]>" >> > <[email protected] <mailto:[email protected]>> >> > Sent: Sunday, December 30, 2018 8:39 AM >> > Subject: Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable >> > >> > Ken, >> > >> > If that Send cable is the only one you have connected between your Icom >> > and the KAT500, you need to feed a bit of RF to initiate a TUNE >> > >> > The KAT500 will first look for a saved L/C combination for that antenna >> > and frequency and will switch to that rather than doing a TUNE. >> > Secondly, it will compute the SWR and if it is below 1.5, it will go >> > into bypass - no tuning is necessary. >> > >> > Is it possible that either one of those conditions exist? >> > >> > 73, >> > Don W3FPR >> > >> > On 12/30/2018 6:12 AM, Ken B wrote: >> >> Yes from the 7600 accessory 1 pin 3 to the kat500 >> >> >> >> Sent from Yahoo Mail on Android >> >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature >> >> >> >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers%E2%81%A1_wl=ym%E2%81%A1_sub1=Internal%E2%81%A1_sub2=Global_YGrowth%E2%81%A1_sub3=EmailSignature>> >> >> >> >> On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm >> >> <[email protected] <mailto:[email protected]>> wrote: >> >> Ken, >> >> >> >> Do you have the cable wired first to the KAT500 and then on to the >> >> KPA500? >> >> The KAT500 must interrupt the keying of the KPA500 when it needs >> >> to tune. >> >> >> >> 73, >> >> Don W3FPR >> >> >> >> On 12/29/2018 10:13 PM, Ken B wrote: >> >> > Thank you Don. >> >> > The pin 3 (send) did the trick perfectly. Now it works at 300 to >> >> 400 >> >> > watts out with 20 in. The problem i have now is when i switch bands >> >> > the kat will not tune unless i remove all AC power from the amp. >> >> > >> >> > >> >> > Sent from Yahoo Mail on Android >> >> > >> >> >> >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature >> >> >> >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers%E2%81%A1_wl=ym%E2%81%A1_sub1=Internal%E2%81%A1_sub2=Global_YGrowth%E2%81%A1_sub3=EmailSignature> >> >> >> >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature >> >> >> >> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers%E2%81%A1_wl=ym%E2%81%A1_sub1=Internal%E2%81%A1_sub2=Global_YGrowth%E2%81%A1_sub3=EmailSignature>>> >> >> >> >> >> >> > >> >> > On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm >> >> > <[email protected] <mailto:[email protected]> >> >> <mailto:[email protected] <mailto:[email protected]>>> wrote: >> >> > Ken, >> >> > >> >> > Look at your Icom 7600 documentation. I believe the >> >> 'keyword' may be >> >> > "Send" or Keyout or something of that nature (PTT should be an >> >> > input to >> >> > the transceiver, not an output, but some manufacturers mix >> >> them up >> >> > causing confusion - check the documentation). >> >> > Connect that output from your transceiver first to the KAT500 >> >> AMP KEY >> >> > connector and from the other KAT500 AMP KEY connector to the >> >> KPA500. >> >> > That allows the KAT500 to disable the amplifier keying if the >> >> KAT500 >> >> > needs to tune. >> >> > >> >> > You should then be "good to go" with the basic cabling. When >> >> you get >> >> > the proper cable, it will integrate better with your Icom, >> >> but the >> >> > basic >> >> > cabling will get you on the air with your new toys. >> >> > >> >> > 73, >> >> > Don W3FPR >> >> > >> >> > On 12/27/2018 11:14 PM, Ken B via Elecraft wrote: >> >> > > Just received my the kap500 and found out it was missing the >> >> > accessory cable which goes from the icom 7600 to the kat500. >> >> > Elecraft is sending one but it might take a week. In the mean >> >> time >> >> > does anyone have the accessory pin outs to rca plug so i can make >> >> > one and use my new toy. >> >> > > Thank youKenKc1icn >> >> >> > >> >> >> > >> > >> > >> > >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > <http://mailman.qth.net/mailman/listinfo/elecraft> >> > Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> >> > Post: mailto:[email protected] <mailto:[email protected]> >> > >> > This list hosted by: http://www.qsl.net <http://www.qsl.net/> >> > Please help support this email list: http://www.qsl.net/donate.html >> > <http://www.qsl.net/donate.html> >> > Message delivered to [email protected] <mailto:[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]
