Let’s take a step back and make sure the KAT500 and KPA500 work properly with RF sensing for a tune. Unplug the mini-phone plug from the KAT500. This will leave the KAT powered from the 7600, but requesting a tune from the 7600 won’t cause the KAT to respond. Next key the radio and make sure everything works properly. After that, change bands on the radio and re-key. Both the Kat and KPA will sense the new band and both should change. The KAT will further require a tune and should break the key line causing the KPA to drop out of transmit.
Try this test and let me know what happens. Oh, and before I forget, there is actually no soldering involved in assembling either the KPA500 or the KAT500. They are both no-solder kits. But there are a lot of mechanical tasks such as screwing in small screws and tightening nuts. Having just assembled one of each of these, I can’t say I blame you for buying it factory-built. 73! Jack, W6FB > On Dec 30, 2018, at 6:30 PM, Ken B <[email protected]> wrote: > > Thank you - I followed Fig 3 on page 10 which is specific to ICOM. Yes all > cables ohm'd out with no shorts > > > > From: Jack Brindle <[email protected]> > To: Ken B <[email protected]> > Cc: "[email protected]" <[email protected]> > Sent: Sunday, December 30, 2018 8:28 PM > Subject: Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable > > 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] >> <mailto:[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] <mailto:[email protected]>> >> To: "[email protected] <mailto:[email protected]>" >> <[email protected] <mailto:[email protected]>> >> Cc: "[email protected] <mailto:[email protected]>" >> <[email protected] <mailto:[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]
