Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

To make it easier to read replies prefaced with KB>>>  
 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. KB>>> Worked as planned 
Next key the radio and make sure everything works properly. KB>>> Worked as 
planned 
After that, change bands on the radio and re-key. Both the Kat and KPA will 
sense the new band and both should change. KB>>> Did not work as planned, KPA 
did not sense me changing from 80 mtr to 20 
The KAT will further require a tune and should break the key line causing the 
KPA to drop out of transmit. KB>>> Did not occur - kept output of 480 Watts


  From: Jack Brindle 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 Sent: Sunday, December 30, 2018 9:53 PM
 Subject: Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable
   
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  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 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 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  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 
 To: "backhoe...@yahoo.com"  
Cc: "elecraft@mailman.qth.net" 
 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 disruptingoperations 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  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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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 

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

Good morning Jack 
To make things easier to read replies prefaced the KB>>> 
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.KB>>> Ohm'd 
out each connector and confirm operation 

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.KB>>> 
Confirmed and Ohm'd each as well. 
KB>>> One note - Took the KPA entirely out of the mix and all works as it 
should with the KAT working properly when I change bands
Thank you Ken 
  From: Jack Brindle 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 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  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 
 To: "backhoe...@yahoo.com"  
Cc: "elecraft@mailman.qth.net" 
 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 disruptingoperations 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  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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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  
> 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 

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

Thank you Jack 
Will do it all today. Sunday after church and evening we preparing for the 
charity meal. We served 581 people and was to wiped to do anything yesterday. 
Thank you Ken KC1ICN



  From: Jack Brindle 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 Sent: Sunday, December 30, 2018 9:53 PM
 Subject: Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable
   
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  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 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 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  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 
 To: "backhoe...@yahoo.com"  
Cc: "elecraft@mailman.qth.net" 
 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 disruptingoperations 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  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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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  
> wrote:
> 
> Thanks for the suggestion 
> Sorry for the delay the wife and I went

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Cady, Fred]

Hi Ken,

If you haven't seen them, these may be a help to you.

http://www.ke7x.com/home/k-line-introduction-and-set-up-guide


Cheers and 73,

Fred KE7X


For all KE7X Elecraft books and the new "Successful Ham Radio Operator's 
Handbook", see www.ke7x.com<http://www.ke7x.com>




From: elecraft-boun...@mailman.qth.net  on 
behalf of Don Wilhelm 
Sent: Sunday, December 30, 2018 6:39 AM
To: backhoe...@yahoo.com; elecraft@mailman.qth.net
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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>
>
> On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm
>  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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature
> 
> <https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>>
>
>
> >
> >On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
> >mailto:donw...@embarqmail.com>> 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
> >
>

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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Don Wilhelm]

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 



On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm
 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
>

>


>
>    On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
>    mailto:donw...@embarqmail.com>> 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
>



__
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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

Thank you Jack 
Sorry for the delay was helping to prepare for todays town wide charity dinner, 
where we typically feed 4-500 people 
Will check when I get back home later today.  

  From: Jack Brindle 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 Sent: Sunday, December 30, 2018 9:53 PM
 Subject: Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable
   
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  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 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 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  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 
 To: "backhoe...@yahoo.com"  
Cc: "elecraft@mailman.qth.net" 
 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 disruptingoperations 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  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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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  
> wrote:
> 
> Thanks for the suggestion 
> Sorry for the delay the wife and I went out. The only way

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Bob McGraw K4TAX]

I have followed this discussion with interest.    I do agree with Jack 
the issue seems to be related to a grounding issue.  And I agree with 
Jim as his assessment likewise.   His work and that of W. Silver from 
ARRL does support this thinking.   [The ARRL publication Grounding and 
Bonding for The Radio Amateur is a MUST HAVE for every station.]


Three points:

(a) each piece of equipment should be connected to the station supply 
via a dedicated ground/bond conductor.


(b) the 12 ft driven ground with 0 ohms resistance is questionable.  And 
if this ground rod is not bonded back to the AC Mains ground outside of 
the house, this must be corrected as it presents a dangerous condition 
and clearly is not in compliance with NEC.


(c) the power strip being used for the station equipment,  from my 
experience, is usually questionable in terms of integrity.


I would disconnect any station ground to the outside.   Anyway, any and 
all of the lightning protection devices should be applied to each feed 
line and rotor line outside of the structure and connected to the driven 
ground.   Again, this ground must be bonded back to the AC mains ground.


I would connect each piece of equipment with a dedicated ground/bond 
conductor to the station power supply ground terminal.   For this I use 
#10 AWG auto primary wire with a suitable ring terminal which is crimped 
and soldered on each end.   As to the power supply ground point, do note 
that the DC negative may or may not be connected to power supply ground.


For station AC power distribution, lacking dedicated wall outlets, I 
make quad boxes using good quality duplex outlets and caps {plugs} and 
do not use the "stab" type connection.  Hook the wire around the screw 
clockwise and tighten the screw.  Use #12-3 rubber covered,{ SJ as I 
recall} for the pigtail.


I would then re-evaluate the condition of concern.

73

Bob, K4TAX



On 12/30/2018 8:30 PM, Ken B via Elecraft 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 
  To: Ken B 
Cc: "elecraft@mailman.qth.net" 
  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  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 
  To: "backhoe...@yahoo.com" 
Cc: "elecraft@mailman.qth.net" 
  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 disruptingoperations 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  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
  
   On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle wrote:   The folks in Watsonville are taking a well deserved rest, but some of us are still ar

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Jack Brindle via Elecraft]

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  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 
> To: Ken B  
> Cc: "elecraft@mailman.qth.net" 
> 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 > <mailto:backhoe...@yahoo.com>> 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 mailto:jackbrin...@me.com>>
>> To: "backhoe...@yahoo.com <mailto:backhoe...@yahoo.com>" 
>> mailto:backhoe...@yahoo.com>> 
>> Cc: "elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net>" 
>> mailto:elecraft@mailman.qth.net>>
>> 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 >> <mailto:backhoe...@yahoo.com>> 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature&

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

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 
 To: Ken B  
Cc: "elecraft@mailman.qth.net" 
 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  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 
 To: "backhoe...@yahoo.com"  
Cc: "elecraft@mailman.qth.net" 
 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 disruptingoperations 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  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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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  
> 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 
> To: "backhoe...@yahoo.com" ; "elecraft@mailman.qth.net" 
>  
> 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 eith

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Walter Underwood]

Last night I dreamed that I was pounding two ground rods into the garden. They 
went in very easily.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Dec 30, 2018, at 5:30 PM, Jim Brown  wrote:
> 
> That's not nearly enough.  EVERYTHING in your home must be bonded together -- 
> power, telco, CATV, your antennas, and all ground rods.  Two places to learn 
> it -- N0AX's recent ARRL book on grounding and bonding, and my own tutorial, 
> upon which much of Ward's book is based.
> 
> http://k9yc.com/GroundingAndAudio.pdf
> 
> Also -- as noted in my tutorial, EVERYTHING connected with your station, 
> including computers and other accessories connected to your rig) should get 
> power from the same outlet, or from outlets whose green wires (third pin) are 
> bonded together in your shack. This is just as important as bonding.
> 
> 73, Jim K9YC
> 
> On 12/30/2018 4:13 PM, Ken B via Elecraft 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.
> 
> 
> __
> 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
> Message delivered to wun...@wunderwood.org

__
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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

I can easily attest that all the grounds are bonded together in the panel.
Everything related to the station is on the same strip with a 0 ohm potential 
to the ground rod
Sent from Yahoo Mail on Android 
 
  On Sun, Dec 30, 2018 at 8:32 PM, Jim Brown wrote: 
  That's not nearly enough.  EVERYTHING in your home must be bonded 
together -- power, telco, CATV, your antennas, and all ground rods.  Two 
places to learn it -- N0AX's recent ARRL book on grounding and bonding, 
and my own tutorial, upon which much of Ward's book is based.

http://k9yc.com/GroundingAndAudio.pdf

Also -- as noted in my tutorial, EVERYTHING connected with your station, 
including computers and other accessories connected to your rig) should 
get power from the same outlet, or from outlets whose green wires (third 
pin) are bonded together in your shack. This is just as important as 
bonding.

73, Jim K9YC

On 12/30/2018 4:13 PM, Ken B via Elecraft 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.


__
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
Message delivered to backhoe...@yahoo.com  
__
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
Message delivered to arch...@mail-archive.com

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Jim Brown]

That's not nearly enough.  EVERYTHING in your home must be bonded 
together -- power, telco, CATV, your antennas, and all ground rods.  Two 
places to learn it -- N0AX's recent ARRL book on grounding and bonding, 
and my own tutorial, upon which much of Ward's book is based.


http://k9yc.com/GroundingAndAudio.pdf

Also -- as noted in my tutorial, EVERYTHING connected with your station, 
including computers and other accessories connected to your rig) should 
get power from the same outlet, or from outlets whose green wires (third 
pin) are bonded together in your shack. This is just as important as 
bonding.


73, Jim K9YC

On 12/30/2018 4:13 PM, Ken B via Elecraft 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.



__
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
Message delivered to arch...@mail-archive.com

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Jack Brindle via Elecraft]

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  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 
> To: "backhoe...@yahoo.com"  
> Cc: "elecraft@mailman.qth.net" 
> 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 > <mailto:backhoe...@yahoo.com>> 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>
>> On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle
>> mailto:jackbrin...@me.com>> 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 > > <mailto:elecraft@mailman.qth.net>> 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 > > <mailto:donw...@embarqmail.com>>
>> > To: "backhoe...@yahoo.com <mailto:b

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

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 
 To: "backhoe...@yahoo.com"  
Cc: "elecraft@mailman.qth.net" 
 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 disruptingoperations 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  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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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  
> 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 
> To: "backhoe...@yahoo.com" ; "elecraft@mailman.qth.net" 
>  
> 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>
>> 
>>    On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm
>>     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 

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Jack Brindle via Elecraft]

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  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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>
> On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle
>  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  > <mailto:elecraft@mailman.qth.net>> 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  > <mailto:donw...@embarqmail.com>>
> > To: "backhoe...@yahoo.com <mailto:backhoe...@yahoo.com>" 
> > mailto:backhoe...@yahoo.com>>; 
> > "elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net>" 
> > mailto:elecraft@mailman.qth.net>> 
> > 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature
> >>  
> >> <https://go.onelink.me/107872968?pid=InProduct=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
> >>mailto:donw...@embarqmail.com>> 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 a

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

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 
 
  On Sun, Dec 30, 2018 at 5:07 PM, Jack Brindle 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  
> 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 
> To: "backhoe...@yahoo.com" ; "elecraft@mailman.qth.net" 
>  
> 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>
>> 
>>    On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm
>>     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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature
>>    
>><https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>>
>> 
>> 
>>    >
>>    >    On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
>>    >    mailto:donw...@embarqmail.com>> 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 b

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Jack Brindle via Elecraft]

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  
> 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 
> To: "backhoe...@yahoo.com" ; "elecraft@mailman.qth.net" 
>  
> 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>
>> 
>> On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm
>>  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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature
>> 
>> <https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>>
>> 
>> 
>> >
>> >On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
>> >mailto:donw...@embarqmail.com>> 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.
>> >
>>

Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

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 
 To: "backhoe...@yahoo.com" ; "elecraft@mailman.qth.net" 
 
 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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>
>
>    On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm
>     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=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature
>    
><https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers⁡_wl=ym⁡_sub1=Internal⁡_sub2=Global_YGrowth⁡_sub3=EmailSignature>>
>
>
>    >
>    >    On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
>    >    mailto:donw...@embarqmail.com>> 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
>    >
>



   
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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

Yes  from the 7600 accessory 1 pin 3 to the kat500

Sent from Yahoo Mail on Android 
 
  On Sun, Dec 30, 2018 at 4:52 AM, Don Wilhelm 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 
> 
>
>    On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
>     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
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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Don Wilhelm]

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 



On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm
 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



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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

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 
 
  On Thu, Dec 27, 2018 at 11:36 PM, Don Wilhelm 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
  
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Re: [Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Don Wilhelm]

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

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[Elecraft] KAT500/KPA500 with Icom 7600 accessory cable

[Ken B via Elecraft]

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

Sent from Yahoo Mail on Android 
 
  On Thu, Dec 27, 2018 at 11:02 PM, John_N1JM wrote:  
  
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