Re: [Elecraft] Ideas for an FT8 Radio

[Gwen Patton]

They can put it on a separate module. There's space for at least a
Raspberry Pi Zero in there, so it could be put on a dedicated board of its
own. That way, it wouldn't be software in the main system firmware, it'd be
a separate, optional module with its own license. THAT can be GPL. You can
sell things with GPL software in them, after all. The only thing that would
violate the GPL is if they put the FT8 code in the main firmware.

Gwen, NG3P

On Mon, Dec 31, 2018 at 8:20 PM Neil Zampella  wrote:

> As long as the developer is using any part of the WSJT-X code it cannot
> be added to closed source firmware.It doesn't matter that it can be
> done.
> It would be in violation of the GPL
>
> Neil, KN3ILZ
>
> On 12/30/2018 8:59 PM, John Harper wrote:
> > Here's the thread - scroll down to message #27527:
> >
> >
> https://groups.io/g/QRPLabs/topic/no_ft8_in_the_upcoming_qsx/27317246?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,27317246
> >
> > John AE5X
> > https://ae5x.blogspot.com
> >
> >
> >
> > On Sun, Dec 30, 2018 at 7:56 PM Devin Butterfield <
> > devin.butterfi...@gmail.com> wrote:
> >
> >> One of the potential issues no one has mentioned is that JT and friends
> >> released the code for FT8 under the GNU GPL license. This means if you
> link
> >> this into any proprietary closed device or firmware, you would violate
> the
> >> terms of the license.
> >>
> >> You would have to either:
> >>
> >> 1. Write a cleanroom implementation from scratch of FT8, ensuring you
> >> didn’t use any GPL code and didn’t violate any copyrights
> >>
> >> or
> >>
> >> 2. Build an “open” box radio, where all software is open source and
> >> licensed under the GPL
> >>
> >> Having said that, you might want to discuss with an attorney before
> >> starting a business venture using JT’s software.
> >>
> >> I also agree that a one-mode radio wouldn’t be of interest for very
> long.
> >> —
> >> Regards, Devin / K6DRS
> >>
> >>
> >>> On Dec 30, 2018, at 5:44 PM, John Harper  wrote:
> >>>
> >>> The upcoming QSX kit from G0UPL may have FT8 capability. Hans announced
> >>> that it will run PSK31, WSPR and RTTY natively, ie on firmware within
> the
> >>> rig. Another ham, a Latvian I believe, asked "Why not FT8 too?"
> >>>
> >>> Hans offered him a free QSX if he could write the code for FT8
> capability
> >>> to exist within the QSX and, last I heard, he was successful.
> >>>
> >>> https://qrp-labs.com/qsx.html
> >>>
> >>> John AE5X
> >>> https://ae5x.blogspot.com
> >>> __
> >>> Elecraft mailing list
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> >>
>
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Re: [Elecraft] Ideas for an FT8 Radio

[Neil Zampella]

As long as the developer is using any part of the WSJT-X code it cannot 
be added to closed source firmware.    It doesn't matter that it can be 
done.

It would be in violation of the GPL

Neil, KN3ILZ

On 12/30/2018 8:59 PM, John Harper wrote:

Here's the thread - scroll down to message #27527:

https://groups.io/g/QRPLabs/topic/no_ft8_in_the_upcoming_qsx/27317246?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,27317246

John AE5X
https://ae5x.blogspot.com



On Sun, Dec 30, 2018 at 7:56 PM Devin Butterfield <
devin.butterfi...@gmail.com> wrote:


One of the potential issues no one has mentioned is that JT and friends
released the code for FT8 under the GNU GPL license. This means if you link
this into any proprietary closed device or firmware, you would violate the
terms of the license.

You would have to either:

1. Write a cleanroom implementation from scratch of FT8, ensuring you
didn’t use any GPL code and didn’t violate any copyrights

or

2. Build an “open” box radio, where all software is open source and
licensed under the GPL

Having said that, you might want to discuss with an attorney before
starting a business venture using JT’s software.

I also agree that a one-mode radio wouldn’t be of interest for very long.
—
Regards, Devin / K6DRS



On Dec 30, 2018, at 5:44 PM, John Harper  wrote:

The upcoming QSX kit from G0UPL may have FT8 capability. Hans announced
that it will run PSK31, WSPR and RTTY natively, ie on firmware within the
rig. Another ham, a Latvian I believe, asked "Why not FT8 too?"

Hans offered him a free QSX if he could write the code for FT8 capability
to exist within the QSX and, last I heard, he was successful.

https://qrp-labs.com/qsx.html

John AE5X
https://ae5x.blogspot.com
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[Elecraft] Happy New Year!

[Rose]

Ken and I want to wish all you Elecraft folks
a very happy and prosperous new year.

88 / 73 !
Rose (N7HKW) and Ken (K0PP)
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Re: [Elecraft] Happy New Year from Germany

[Mel Farrer via Elecraft]

Well, we are all getting older and hopefully wiser, hi.  Got mine in 1957. 
ALWAYS the best effort I ever did, except the XYL of course...  Cheers, from 
the west coast.
Mel, K6KBE

  From: Doug Turnbull 
 To: 'Bob DeHaney' ; elecraft@mailman.qth.net 
 Sent: Monday, December 31, 2018 3:59 PM
 Subject: Re: [Elecraft] Happy New Year from Germany
   
Good Man Bob.
I also so add HNY to all our fellows and sisters.    We are licensed in the
same year.  My ticket arrived one week after turning 16 and was the best
present.    So guess I am but a pup but yes it is great to wake up each
morning.  We share a great hobby for both youth and when retired.

                      73 Doug EI2CN formerly KN4WQZ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob DeHaney
Sent: 31 December 2018 23:44
To: elecraft@mailman.qth.net
Subject: [Elecraft] Happy New Year from Germany

Vy 73 de Bob DJ0RD/WU5T who will be 79 this month, still a Ham since 1960.
Yes, I am happy when I wake up in the morning ??

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Re: [Elecraft] Ideas for an FT8 Radio

[Dennis Moore]

That explains the complete and utter failure of the K1 and KX1 to gain 
any popularity.


73, Dennis NJ6G
Happy New Year!


On 12/30/2018 17:56, Devin Butterfield wrote:

I also agree that a one-mode radio wouldn’t be of interest for very long.
—
Regards, Devin / K6DRS

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Re: [Elecraft] Happy New Year from Germany

[Doug Turnbull]

Good Man Bob.
I also so add HNY to all our fellows and sisters.We are licensed in the
same year.   My ticket arrived one week after turning 16 and was the best
present.So guess I am but a pup but yes it is great to wake up each
morning.   We share a great hobby for both youth and when retired.

  73 Doug EI2CN formerly KN4WQZ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob DeHaney
Sent: 31 December 2018 23:44
To: elecraft@mailman.qth.net
Subject: [Elecraft] Happy New Year from Germany

Vy 73 de Bob DJ0RD/WU5T who will be 79 this month, still a Ham since 1960.
Yes, I am happy when I wake up in the morning ??

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[Elecraft] Happy New Year from Germany

[Bob DeHaney]

Vy 73 de Bob DJ0RD/WU5T who will be 79 this month, still a Ham since 1960.  
Yes, I am happy when I wake up in the morning 

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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




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
> 
>
> 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

[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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[Elecraft] 2019

[Pentti A J Pajunen]

Happy New Year to Elecraft staff and all of The Elecrafters.

--
73 Penna, OH2G, OH2CG K3 S7N 3791 & KX3 S7N 6624
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Re: [Elecraft] KPA1500 problem

[RIchard Williams via Elecraft]

Roy,
The very first thing you do is attach a dummy load to the antenna jack on the 
back of he amp and isolate the problem to the amp or feedline and/or antenna.  
If you don't have one, you should purchase one right away.
I have seen the type of fault many times, and a good percentage of the it is 
not the amp.  One fault I have seen more than once is using high power into a 
load with high SWR.  That develops very high voltages on the coax, and it arcs 
through.  Once that happens, you need to find the issue with the antenna and 
replace the coax.
Dick, K8ZTT
Sent from Yahoo Mail on Android 
 
  On Mon, Dec 31, 2018 at 5:56, Roy Koeppe wrote:   

" My KPA1500 (s/n 121) has developed a problem:
When applying power (15-20W) from the K3 to the amp, it immediately faults 
to:low gain fault ratio 3 (sometimes ratio 2 to ratio 6). The SWR indicator 
shows high SWR as the amp faults. 100w only from exciter will cause ATU to 
tune to 1:1 but when amp is switched on, it immediately faults as above. 
Looked through archives and manual. No mention of this particular fault. Any 
ideas would be appreciated."

I have had that exact same thing happen, and tracked it down to bad WW2 
transmitting micas in my 160M Omega-match at the antenna feedpoint. 
Something is likely breaking down, as someone else just commented. Luck & 
73,

Roy    K6XK 


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Re: [Elecraft] KPA1500 problem

[Roy Koeppe]

" My KPA1500 (s/n 121) has developed a problem:
When applying power (15-20W) from the K3 to the amp, it immediately faults 
to:low gain fault ratio 3 (sometimes ratio 2 to ratio 6). The SWR indicator 
shows high SWR as the amp faults. 100w only from exciter will cause ATU to 
tune to 1:1 but when amp is switched on, it immediately faults as above. 
Looked through archives and manual. No mention of this particular fault. Any 
ideas would be appreciated."


I have had that exact same thing happen, and tracked it down to bad WW2 
transmitting micas in my 160M Omega-match at the antenna feedpoint. 
Something is likely breaking down, as someone else just commented. Luck & 
73,


Roy K6XK 



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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 I can get it all to 
> work properly is to:- Remove AC