International Morse

Sent from my iPhone

> On Nov 20, 2017, at 8:02 PM, elecraft-requ...@mailman.qth.net wrote:
> 
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> Today's Topics:
> 
>   1. Re: O.T. Morse is not dead, at least in the U.S. Navy
>      (Fred Jensen)
>   2. Walwarts - linear supplies (N2TK, Tony)
>   3. Re: Walwarts - linear supplies (JT Croteau)
>   4. Re: Walwarts - linear supplies (Joe Subich, W4TV)
>   5. Re: Digitized IF over IP? (Jim Miller)
>   6. Re: Walwarts - linear supplies (Jim Brown)
>   7. Re: Digitized IF over IP? (Tom)
>   8. Re: Walwarts - linear supplies (N2TK, Tony)
>   9. Re: Digitized IF over IP? (Fred Jensen)
>  10. Re: Digitized IF over IP? (Jim Miller)
>  11. Re: Digitized IF over IP? (Don Wilhelm)
>  12. Re: Walwarts - linear supplies (Ron D'Eau Claire)
>  13. Re: [KX2] Cannot turn off switch cw tones (Don Wilhelm)
>  14. Re: Digitized IF over IP? (Jim Miller)
>  15. Re: [KX2] Cannot turn off switch cw tones (Wayne Burdick)
>  16. Re: Digitized IF over IP? (tomb18)
>  17. Re: Digitized IF over IP? (Richard Ferch)
>  18. Re: Digitized IF over IP? (Walter Underwood)
>  19. Re: K3 speaker with Remoterig (Rick Tavan)
>  20. K1 Fix and Align (Thom)
>  21. Re: Digitized IF over IP? (Fred Jensen)
>  22. Re: K1 Fix and Align (Don Wilhelm)
>  23. Re: Walwarts - linear supplies (Brian Hunt)
>  24. Re: Digitized IF over IP? (Jim Miller)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 20 Nov 2017 12:33:51 -0800
> From: Fred Jensen <k6...@foothill.net>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] O.T. Morse is not dead, at least in the U.S.
>    Navy
> Message-ID: <54a61b5a-3bfc-0788-8818-d7752c5af...@foothill.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> OK, what's different then from WW2 signal lamp usage?? I thought they 
> were using a modified lamp with QRQ Morse decoded in some sort of 
> hardward/software device, or a digital mode.
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 11/19/2017 6:48 PM, dyarnes wrote:
>> Fred and All,
>> 
>> I think Morse is exactly what they are using with the signal lamps.  The 
>> article I read about this confirmed that.
>> 
>> Dave W7AQK
>> 
>> 
>> 
>> ---------------------------------------------
>> 
>> There was a recent URL posted involving using the venerable signal
>> lamps for high speed communications between ships.? I don't think it was
>> Morse however.
>> 
>> 73,
>> 
>> Fred ["Skip"] K6DGW
>> Sparks NV DM09dn
>> Washoe County
>> 
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> 
>> --
>> This message has been scanned by E.F.A. Project and is believed to be clean.
>> 
>> 
>> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 20 Nov 2017 15:37:08 -0500
> From: "N2TK, Tony" <tony....@verizon.net>
> To: <elecraft@mailman.qth.net>
> Subject: [Elecraft] Walwarts - linear supplies
> Message-ID: <011b01d3623f$57a88540$06f98fc0$@verizon.net>
> Content-Type: text/plain;    charset="us-ascii"
> 
> I believe recently there was talk about noise from walwarts.  Jameco
> Reliapro offers a line of linear regulated walwarts. They are reasonable in
> price and so far noise free.
> 
> They range from 2-24VDC with .2-1A output.
> 
> N2TK, Tony
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Mon, 20 Nov 2017 15:57:08 -0500
> From: JT Croteau <jt.to...@gmail.com>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Walwarts - linear supplies
> Message-ID:
>    <caervl1sp4tpybfkxt8vtgo2qbsd1eoh+fyvhri-k3cdxfcb...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> They are nice warts Tony.  I have a 1A 12VAC Jameco Reliapro wallwart
> for my beverage direction controller.  It is extremely clean and noise
> free.
> 
> 73
> N1ESE
> 
>> On Mon, Nov 20, 2017 at 3:37 PM, N2TK, Tony <tony....@verizon.net> wrote:
>> I believe recently there was talk about noise from walwarts.  Jameco
>> Reliapro offers a line of linear regulated walwarts. They are reasonable in
>> price and so far noise free.
>> 
>> They range from 2-24VDC with .2-1A output.
>> 
>> N2TK, Tony
>> 
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
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>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to jt.to...@gmail.com
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 20 Nov 2017 16:17:02 -0500
> From: "Joe Subich, W4TV" <li...@subich.com>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Walwarts - linear supplies
> Message-ID: <3950aa7c-1263-5a11-22a5-3a3503998...@subich.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> 
> All Electroncs (www.allelectronics.com) has analog wall warts of various
> voltage/current capability depending on what is available in surplus at
> any given time.  One may not even need regulated voltage as many devices
> contain internal regulators ...
> 
> They presently show 12 V @ 500 mA and 12.5V @ 410 mA units that appear
> to be analog for less than $5.00 each in Q=1.
> 
> 73,
> 
>    ... Joe, W4TV
> 
> 
>> On 11/20/2017 3:37 PM, N2TK, Tony wrote:
>> I believe recently there was talk about noise from walwarts.  Jameco
>> Reliapro offers a line of linear regulated walwarts. They are reasonable in
>> price and so far noise free.
>> 
>> They range from 2-24VDC with .2-1A output.
>> 
>> N2TK, Tony
>> 
>> ______________________________________________________________
>> 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 li...@subich.com
>> 
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Mon, 20 Nov 2017 16:21:18 -0500
> From: Jim Miller <jtmille...@gmail.com>
> To: Tom <tom...@videotron.ca>
> Cc: Elecraft <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID:
>    <cacyen9z_essxtwpiasqa5nbkjdkfx3glb9z-uwawxtgtnzk...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Although the IF frequency is 8.215Mhz the bandwidth at that frequency can't
> be that much. Wouldn't down converting or sampling then down before down
> converting yield a much more reasonable data stream?
> 
> As you suggest further processing before sending over IP to something that
> can be reasonably displayed would make sense as well.
> 
> My desire is to not have a PC at the remote station. Something embedded is
> fine.
> 
> 73
> 
> jim ab3cv
> 
> 
> 
>> On Mon, Nov 20, 2017 at 2:58 PM, Tom <tom...@videotron.ca> wrote:
>> 
>> Hi,
>> That would be incredibly inefficient if you really want the whole IF. The
>> IF output of the K3 is 8.215 MHz so you would have to sample at twice this.
>> On the other hand, the original questions was "Has anyone digitized the
>> K3S IF and streamed it over an IP connection?"  and the answer is yes, many
>> people people have.
>> However, there is always something sampling the IF at the K3 and then
>> providing some sort of processing before hand.
>> For example you could hook up an SDRPlay and sample at 2MHz and you will
>> then have a maximum bandwidth of 2MHz.  That will be perfectly fine.
>> However, again, it is not that efficient.  What do you want your panadapter
>> to display?  Your display has a finite number of pixels.  Today, the
>> highest resolution would be 4K where you have 3840 data points.  Why send
>> all 4 million data points when you need to display only 3840?  Of course
>> I'm simplifying this a lot but it's the general idea.
>> There are lots of solutions out there.  Just look up software defined
>> radios and dongles and find some drivers that will stream the data.
>> 73 Tom
>> va2fsq.com
>> 
>> 
>> 
>> -----Original Message----- From: Jim Miller
>> Sent: Monday, November 20, 2017 2:32 PM
>> To: Tom
>> Subject: Re: [Elecraft] Digitized IF over IP?
>> 
>> Remote panadapter
>> 
>> Jim ab3cv
>> 
>> On Nov 20, 2017, at 2:23 PM, Tom <tom...@videotron.ca> wrote:
>> 
>> Hi,
>> The questions is why?  What are you trying to achieve? Tom
>> va2fsq.com
>> 
>> -----Original Message----- From: Lynn W. Taylor, WB6UUT Sent: Monday,
>> November 20, 2017 2:14 PM To: elecraft@mailman.qth.net Subject: Re:
>> [Elecraft] Digitized IF over IP?
>> Latency is going to be a huge problem.
>> 
>> 73 -- Lynn
>> 
>>> On 11/20/2017 11:05 AM, Jim Miller wrote:
>>> Has anyone digitized the K3s IF and streamed it over an IP connection?
>>> 73
>>> Jim ab3cv
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
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>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to kx...@coldrockshotbrooms.com
>>> 
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
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>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to tom...@videotron.ca
>> 
>> ---
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>> 
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
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>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to j...@jtmiller.com
>> 
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Mon, 20 Nov 2017 13:41:46 -0800
> From: Jim Brown <j...@audiosystemsgroup.com>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Walwarts - linear supplies
> Message-ID:
>    <a33f3af5-baf4-da95-ea15-b155a7daa...@audiosystemsgroup.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Older wall warts are linear.? If you're smart enough to have saved them, 
> there's a good chance you won't have buy anything.? Simply select one 
> with the matching voltage and rated for the needed current, cut the 
> cables to both old and new warts, splice the old wart to the connector 
> that mates with the unit you need to power.
> 
> Older warts are often available at second hand stores and flea markets. 
> $1 is the going rate. In general, linear warts are much heavier than 
> SMPS units, so that's a good first check. A better one is to plug it 
> into AC and hold a portable radio next to it tuned somewhere near 2 MHz 
> (like the top of the AM BC band). If you hear hash, it's a switcher. If 
> you don't., 99% chance that it's linear.
> 
> All of this is described in http://k9yc.com/KillingReceiveNoise.pdf
> 
> 73, Jim K9YC
> 
>> On 11/20/2017 1:17 PM, Joe Subich, W4TV wrote:
>> All Electroncs (www.allelectronics.com) has analog wall warts of various
>> voltage/current capability depending on what is available in surplus at
>> any given time.? One may not even need regulated voltage as many devices
>> contain internal regulators ... 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 7
> Date: Mon, 20 Nov 2017 16:45:02 -0500
> From: "Tom" <tom...@videotron.ca>
> To: "Jim Miller" <jtmille...@gmail.com>
> Cc: Elecraft <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <1EE984517A714612B32089570E555FB7@DESKTOPAV61F2H>
> Content-Type: text/plain;    charset="UTF-8"
> 
> Yes, that is the idea.  There are already some SDR?s that will do this, 
> without the need for a PC.  Here is an example
> http://www.rfspace.com/RFSPACE/SDR-IP.html
> 
> Of course if you want to do this yourself, it depends where you want to 
> start...
> 73
> 
> 
> From: Jim Miller 
> Sent: Monday, November 20, 2017 4:21 PM
> To: Tom 
> Cc: Elecraft 
> Subject: Re: [Elecraft] Digitized IF over IP?
> 
> Although the IF frequency is 8.215Mhz the bandwidth at that frequency can't 
> be that much. Wouldn't down converting or sampling then down before down 
> converting yield a much more reasonable data stream? 
> 
> As you suggest further processing before sending over IP to something that 
> can be reasonably displayed would make sense as well.
> 
> My desire is to not have a PC at the remote station. Something embedded is 
> fine.
> 
> 73
> 
> jim ab3cv
> 
> 
> 
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
> 
> 
> ------------------------------
> 
> Message: 8
> Date: Mon, 20 Nov 2017 16:45:09 -0500
> From: "N2TK, Tony" <tony....@verizon.net>
> To: <j...@audiosystemsgroup.com>,    <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Walwarts - linear supplies
> Message-ID: <001701d36248$d71129f0$85337dd0$@verizon.net>
> Content-Type: text/plain;    charset="utf-8"
> 
> Jim,
> Good tip. I want to try that with some of my old walwarts
> N2tK, Tony
> 
> -----Original Message-----
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
> Sent: Monday, November 20, 2017 4:42 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Walwarts - linear supplies
> 
> Older wall warts are linear.  If you're smart enough to have saved them, 
> there's a good chance you won't have buy anything.  Simply select one with 
> the matching voltage and rated for the needed current, cut the cables to both 
> old and new warts, splice the old wart to the connector that mates with the 
> unit you need to power.
> 
> Older warts are often available at second hand stores and flea markets. 
> $1 is the going rate. In general, linear warts are much heavier than SMPS 
> units, so that's a good first check. A better one is to plug it into AC and 
> hold a portable radio next to it tuned somewhere near 2 MHz (like the top of 
> the AM BC band). If you hear hash, it's a switcher. If you don't., 99% chance 
> that it's linear.
> 
> All of this is described in http://k9yc.com/KillingReceiveNoise.pdf
> 
> 73, Jim K9YC
> 
>> On 11/20/2017 1:17 PM, Joe Subich, W4TV wrote:
>> All Electroncs (www.allelectronics.com) has analog wall warts of 
>> various voltage/current capability depending on what is available in 
>> surplus at any given time.  One may not even need regulated voltage as 
>> many devices contain internal regulators ...
> 
> 
> ______________________________________________________________
> 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 tony....@verizon.net
> 
> 
> 
> ------------------------------
> 
> Message: 9
> Date: Mon, 20 Nov 2017 13:45:24 -0800
> From: Fred Jensen <k6...@foothill.net>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <3549b06f-228b-a040-7be0-ce980adbe...@foothill.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> The P3 is the biggest thing I miss when operating remote to W7RN.? I 
> bought my P3 as a "toy" but it's the only thing I look at now.? The 
> station is about 60 km from me, I've thought about getting an easement 
> and running 60 km of RG-58 down to my P3, but I doubt I'd have any 
> signal at the house [:-)
> 
> Was thinking of mixing the 8.1 MHz IF down to baseband, sampling it and 
> feeding it down on the iNet, mixing it back to something the P3 will 
> tune to.? I think there are devices on the market to do something like 
> that, just haven't pursued it yet.
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 11/20/2017 12:10 PM, Steve Sergeant wrote:
>> Somebody must have already written the code to collect several hundred
>> FFT bins of 100 or 125 millisecond duration over IP as single-line
>> updates to a display app on the far end. With typical compression (LZV,
>> RLL, etc.) that would yield around a 300kbps bitstream or so for 512
>> frequency bins and 1/8-sec updates; not really a lot of data for most
>> modern Internet connections.
>> 
>> This is all really well-understood technology which is well supported by
>> a number of development environments.
>> 
>> I couldn't tell you what commercial products do this, if they do exist.
>> 
> 
> 
> 
> ------------------------------
> 
> Message: 10
> Date: Mon, 20 Nov 2017 17:37:39 -0500
> From: Jim Miller <j...@jtmiller.com>
> To: Fred Jensen <k6...@foothill.net>
> Cc: Elecraft Reflector <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID:
>    <cacyen9ztjj6u9syyeb+-j+rmxmdwfw6cgmi54jhwg6qkj-3...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Perhaps if Wayne and Eric (and Lyle) are listening perhaps there is a
> market for a IP-P3. Most of the P3 as it stands is an empty case. Maybe
> something that could be an addon?
> 
> Jim ab3cv
> 
>> On Mon, Nov 20, 2017 at 4:45 PM, Fred Jensen <k6...@foothill.net> wrote:
>> 
>> The P3 is the biggest thing I miss when operating remote to W7RN.  I
>> bought my P3 as a "toy" but it's the only thing I look at now.  The station
>> is about 60 km from me, I've thought about getting an easement and running
>> 60 km of RG-58 down to my P3, but I doubt I'd have any signal at the house
>> [:-)
>> 
>> Was thinking of mixing the 8.1 MHz IF down to baseband, sampling it and
>> feeding it down on the iNet, mixing it back to something the P3 will tune
>> to.  I think there are devices on the market to do something like that,
>> just haven't pursued it yet.
>> 
>> 73,
>> 
>> Fred ["Skip"] K6DGW
>> Sparks NV DM09dn
>> Washoe County
>> 
>>> On 11/20/2017 12:10 PM, Steve Sergeant wrote:
>>> 
>>> Somebody must have already written the code to collect several hundred
>>> FFT bins of 100 or 125 millisecond duration over IP as single-line
>>> updates to a display app on the far end. With typical compression (LZV,
>>> RLL, etc.) that would yield around a 300kbps bitstream or so for 512
>>> frequency bins and 1/8-sec updates; not really a lot of data for most
>>> modern Internet connections.
>>> 
>>> This is all really well-understood technology which is well supported by
>>> a number of development environments.
>>> 
>>> I couldn't tell you what commercial products do this, if they do exist.
>>> 
>>> 
>> ______________________________________________________________
>> 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 j...@jtmiller.com
>> 
> 
> 
> ------------------------------
> 
> Message: 11
> Date: Mon, 20 Nov 2017 18:26:20 -0500
> From: Don Wilhelm <donw...@embarqmail.com>
> To: Fred Jensen <k6...@foothill.net>, elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <0cb4eb43-070b-b9ac-e5e7-92f08bc18...@embarqmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Skip,
> 
> Have you considered a VNC connection to a computer local to the K3/P3?
> Of course, that will not show you the P3 screen nor even the SVGA screen 
> (unless it is done using a camera), but if the P3 IF OUT is connected to 
> an LP-PAN box, the baseband I/Q outputs from LPpan run to a quality 
> soundcard can produce a panadapter display on the computer monitor. 
> NaP3 will also provide rig control, and Win4K3 will do that as well and 
> also allow linking with several other logging applications, CW Skimmer, 
> and many others.
> I am not certain about latency concerns, and that may be a problem on 
> CW, but it may not be a problem on phone.
> 
> Tom VA2FSQ (the author of Win4K3) has some other possibilities such as 
> his support for video capture of the P3/SVGA screen, so that may give 
> you some additional possibilities for solutions.  Take a look at 
> https://va2fsq.com/
> 
> 73,
> Don W3FPR
> 
>> On 11/20/2017 4:45 PM, Fred Jensen wrote:
>> The P3 is the biggest thing I miss when operating remote to W7RN.? I 
>> bought my P3 as a "toy" but it's the only thing I look at now.? The 
>> station is about 60 km from me, I've thought about getting an easement 
>> and running 60 km of RG-58 down to my P3, but I doubt I'd have any 
>> signal at the house [:-)
>> 
>> Was thinking of mixing the 8.1 MHz IF down to baseband, sampling it and 
>> feeding it down on the iNet, mixing it back to something the P3 will 
>> tune to.? I think there are devices on the market to do something like 
>> that, just haven't pursued it yet.
>> 
> 
> 
> ------------------------------
> 
> Message: 12
> Date: Mon, 20 Nov 2017 15:42:35 -0800
> From: "Ron D'Eau Claire" <r...@cobi.biz>
> To: <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Walwarts - linear supplies
> Message-ID: <002201d36259$3e7458a0$bb5d09e0$@biz>
> Content-Type: text/plain;    charset="utf-8"
> 
> I have a several linear wall-warts that I collected over the years which I 
> guard jealously. 
> 
> However a few of them are only a transformer and provide low-voltage AC to 
> the equipment. The rectifiers were included in the item being powered. 
> 
> 73, Ron AC7AC
> 
> -----Original Message-----
> From: elecraft-boun...@mailman.qth.net 
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
> Sent: Monday, November 20, 2017 1:42 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Walwarts - linear supplies
> 
> Older wall warts are linear.  If you're smart enough to have saved them, 
> there's a good chance you won't have buy anything.  Simply select one with 
> the matching voltage and rated for the needed current, cut the cables to both 
> old and new warts, splice the old wart to the connector that mates with the 
> unit you need to power.
> 
> Older warts are often available at second hand stores and flea markets. 
> $1 is the going rate. In general, linear warts are much heavier than SMPS 
> units, so that's a good first check. A better one is to plug it into AC and 
> hold a portable radio next to it tuned somewhere near 2 MHz (like the top of 
> the AM BC band). If you hear hash, it's a switcher. If you don't., 99% chance 
> that it's linear.
> 
> All of this is described in http://k9yc.com/KillingReceiveNoise.pdf
> 
> 73, Jim K9YC
> 
>> On 11/20/2017 1:17 PM, Joe Subich, W4TV wrote:
>> All Electroncs (www.allelectronics.com) has analog wall warts of 
>> various voltage/current capability depending on what is available in 
>> surplus at any given time.  One may not even need regulated voltage as 
>> many devices contain internal regulators ...
> 
> 
> ______________________________________________________________
> 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 r...@elecraft.com
> 
> 
> 
> ------------------------------
> 
> Message: 13
> Date: Mon, 20 Nov 2017 18:44:55 -0500
> From: Don Wilhelm <donw...@embarqmail.com>
> To: Stephen Prior <eastbrantw...@gmail.com>,    Elecraft
>    <Elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] [KX2] Cannot turn off switch cw tones
> Message-ID: <24129c3d-9479-d783-8fa7-ac4a6c83f...@embarqmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Stephen,
> 
> I do not see anything definitive saying how to turn it off, but on the 
> assumption that it might be a toggle, hold down APF, Rate, and A/B while 
> powering on again.  If it turns off, that is good, but if it is still 
> present, you will have to wait until Wayne can tell us how to turn it 
> off (hopefully it is not EEINIT).
> 
> 73,
> Don W3FPR
> 
>> On 11/20/2017 2:42 PM, Stephen Prior wrote:
>> I was playing with the new features in 2.81 and enabled the tones by
>> holding down APF (plus Rate and A/B) at start-up.  All works great, the
>> double tap on PTT gives the freq. etc.  However, having established that it
>> works, I'm now stuck in the mode.  I can go into Setup and turn SW tones to
>> off but when I turn the KX2 off and then on again, the SW tones is now set
>> back to 20!
>> 
>> I have read everything I can find, but I cannot see how to get out of this
>> so that I have no tones of any description.
>> 
>> Any advice gratefully received!
>> 
>> Thanks and 73, Stephen G4SJP
>> ______________________________________________________________
>> 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 donw...@embarqmail.com
>> 
> 
> 
> ------------------------------
> 
> Message: 14
> Date: Mon, 20 Nov 2017 18:52:16 -0500
> From: Jim Miller <j...@jtmiller.com>
> To: donw...@embarqmail.com
> Cc: Elecraft Reflector <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID:
>    <cacyen9zpwg6xoseusw6yrqijqqyunnuvdjeyvhwu-za3t2n...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Doing a screen grab is certainly possible a variety of ways. But it would
> seem to me that doing the FFT of a realistic size and update rate and just
> streaming the data to the control location would likely be more efficient.
> Most of the SVGA display is blank at any point in time and a waste of
> bandwidth. Doing an A/D converter and feeding an FPGA for the FFT must have
> been done before by the HPSDR guys. https://openhpsdr.org/
> The control point can then display the data, average it as desired, provide
> a waterfall of it, etc.
> 
> Something with 1024 or 2048 points and 10bits of data would make a good
> place to get a start on feasibility. The control of such a remote device
> would probably need SPAN, CENTER (freq offset), SCALE (gain) and REF LVL.
> Along with the data stream would need to come the band/freq info from the
> K3s. The rest would be in the Control Point display, likely software.
> 
> I really don't need to outperform the P3 but it's probably possible to do
> so. Just having the P3 as it is and being able to have the screen remotely
> would be a great capability.
> 
> I recently worked at a station which didn't have K3/P3 at all locations and
> it was like walking around in the dark!!
> 
> 73
> 
> jim ab3cv
> 
> 
>> On Mon, Nov 20, 2017 at 6:26 PM, Don Wilhelm <donw...@embarqmail.com> wrote:
>> 
>> Skip,
>> 
>> Have you considered a VNC connection to a computer local to the K3/P3?
>> Of course, that will not show you the P3 screen nor even the SVGA screen
>> (unless it is done using a camera), but if the P3 IF OUT is connected to an
>> LP-PAN box, the baseband I/Q outputs from LPpan run to a quality soundcard
>> can produce a panadapter display on the computer monitor. NaP3 will also
>> provide rig control, and Win4K3 will do that as well and also allow linking
>> with several other logging applications, CW Skimmer, and many others.
>> I am not certain about latency concerns, and that may be a problem on CW,
>> but it may not be a problem on phone.
>> 
>> Tom VA2FSQ (the author of Win4K3) has some other possibilities such as his
>> support for video capture of the P3/SVGA screen, so that may give you some
>> additional possibilities for solutions.  Take a look at
>> https://va2fsq.com/
>> 
>> 73,
>> Don W3FPR
>> 
>>> On 11/20/2017 4:45 PM, Fred Jensen wrote:
>>> 
>>> The P3 is the biggest thing I miss when operating remote to W7RN.  I
>>> bought my P3 as a "toy" but it's the only thing I look at now.  The station
>>> is about 60 km from me, I've thought about getting an easement and running
>>> 60 km of RG-58 down to my P3, but I doubt I'd have any signal at the house
>>> [:-)
>>> 
>>> Was thinking of mixing the 8.1 MHz IF down to baseband, sampling it and
>>> feeding it down on the iNet, mixing it back to something the P3 will tune
>>> to.  I think there are devices on the market to do something like that,
>>> just haven't pursued it yet.
>>> 
>>> ______________________________________________________________
>> 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 j...@jtmiller.com
>> 
> 
> 
> ------------------------------
> 
> Message: 15
> Date: Mon, 20 Nov 2017 15:58:22 -0800
> From: Wayne Burdick <n...@elecraft.com>
> To: Stephen Prior <eastbrantw...@gmail.com>
> Cc: Elecraft Reflector <Elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] [KX2] Cannot turn off switch cw tones
> Message-ID: <fe73c7e8-e3a0-4b39-a2f3-55654e483...@elecraft.com>
> Content-Type: text/plain; charset=utf-8
> 
> Stephen, 
> 
> That sounds like a bug that I didn?t catch. I?ll get on it right away. 
> Meanwhile, you might try powering up in SSB mode, then changing the SW 
> setting, then turning power off. Let me know if this works.
> 
> Thanks,
> Wayne
> N6KR
> 
> 
>> On Nov 20, 2017, at 11:42 AM, Stephen Prior <eastbrantw...@gmail.com> wrote:
>> 
>> I was playing with the new features in 2.81 and enabled the tones by
>> holding down APF (plus Rate and A/B) at start-up.  All works great, the
>> double tap on PTT gives the freq. etc.  However, having established that it
>> works, I'm now stuck in the mode.  I can go into Setup and turn SW tones to
>> off but when I turn the KX2 off and then on again, the SW tones is now set
>> back to 20!
>> 
>> I have read everything I can find, but I cannot see how to get out of this
>> so that I have no tones of any description.
>> 
>> Any advice gratefully received!
>> 
>> Thanks and 73, Stephen G4SJP
>> ______________________________________________________________
>> 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 n...@elecraft.com
> 
> 
> 
> ------------------------------
> 
> Message: 16
> Date: Mon, 20 Nov 2017 19:10:42 -0500
> From: tomb18 <tom...@videotron.ca>
> To: Jim Miller <j...@jtmiller.com>, donw...@embarqmail.com
> Cc: Elecraft Reflector <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <43b3ab90ac68ec4ac33947be66a1d...@smtp.videotron.ca>
> Content-Type: text/plain; charset=utf-8
> 
> Hi?Here is a demo using remote rig, and a kx3.?https://youtu.be/8--Vk2WWLok
> In this case, the videos author is using a product from Eltima that streams a 
> sound card? USB port over TCP. This again requires a pc at the radio end to 
> stream the output of the sound card to the remote computer. But as you can 
> see it works well.?
> Also don't underestimate the capabilities of screen sharing programs. They do 
> of course require a computer at the radio end but then there are loads of 
> possibilities.?There is also a pure teamviewer solution that can be used with 
> many different clients.?
> https://youtu.be/kWa7zSBeD6Q&sns?
> There are lots of possibilities. The P3 however, doesn't have the ability. 
> There is on the other hand, a port in the back that was intended for this 
> purpose but never implemented.?73 Tom?
> Sent from my Samsung Galaxy smartphone.
> 
> -------- Original message --------From: Jim Miller <j...@jtmiller.com> Date: 
> 2017-11-20  6:52 PM  (GMT-05:00) To: donw...@embarqmail.com Cc: Elecraft 
> Reflector <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Digitized IF 
> over IP? 
> Doing a screen grab is certainly possible a variety of ways. But it would
> seem to me that doing the FFT of a realistic size and update rate and just
> streaming the data to the control location would likely be more efficient.
> Most of the SVGA display is blank at any point in time and a waste of
> bandwidth. Doing an A/D converter and feeding an FPGA for the FFT must have
> been done before by the HPSDR guys. https://openhpsdr.org/
> The control point can then display the data, average it as desired, provide
> a waterfall of it, etc.
> 
> Something with 1024 or 2048 points and 10bits of data would make a good
> place to get a start on feasibility. The control of such a remote device
> would probably need SPAN, CENTER (freq offset), SCALE (gain) and REF LVL.
> Along with the data stream would need to come the band/freq info from the
> K3s. The rest would be in the Control Point display, likely software.
> 
> I really don't need to outperform the P3 but it's probably possible to do
> so. Just having the P3 as it is and being able to have the screen remotely
> would be a great capability.
> 
> I recently worked at a station which didn't have K3/P3 at all locations and
> it was like walking around in the dark!!
> 
> 73
> 
> jim ab3cv
> 
> 
>> On Mon, Nov 20, 2017 at 6:26 PM, Don Wilhelm <donw...@embarqmail.com> wrote:
>> 
>> Skip,
>> 
>> Have you considered a VNC connection to a computer local to the K3/P3?
>> Of course, that will not show you the P3 screen nor even the SVGA screen
>> (unless it is done using a camera), but if the P3 IF OUT is connected to an
>> LP-PAN box, the baseband I/Q outputs from LPpan run to a quality soundcard
>> can produce a panadapter display on the computer monitor. NaP3 will also
>> provide rig control, and Win4K3 will do that as well and also allow linking
>> with several other logging applications, CW Skimmer, and many others.
>> I am not certain about latency concerns, and that may be a problem on CW,
>> but it may not be a problem on phone.
>> 
>> Tom VA2FSQ (the author of Win4K3) has some other possibilities such as his
>> support for video capture of the P3/SVGA screen, so that may give you some
>> additional possibilities for solutions.? Take a look at
>> https://va2fsq.com/
>> 
>> 73,
>> Don W3FPR
>> 
>>> On 11/20/2017 4:45 PM, Fred Jensen wrote:
>>> 
>>> The P3 is the biggest thing I miss when operating remote to W7RN.? I
>>> bought my P3 as a "toy" but it's the only thing I look at now.? The station
>>> is about 60 km from me, I've thought about getting an easement and running
>>> 60 km of RG-58 down to my P3, but I doubt I'd have any signal at the house
>>> [:-)
>>> 
>>> Was thinking of mixing the 8.1 MHz IF down to baseband, sampling it and
>>> feeding it down on the iNet, mixing it back to something the P3 will tune
>>> to.? I think there are devices on the market to do something like that,
>>> just haven't pursued it yet.
>>> 
>>> ______________________________________________________________
>> 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 j...@jtmiller.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 tom...@videotron.ca
> 
> ------------------------------
> 
> Message: 17
> Date: Mon, 20 Nov 2017 19:50:28 -0500
> From: Richard Ferch <ve3...@gmail.com>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID:
>    <CAJ-xeH=b2PZ5pa=KH8dqov56AL_q_7DjHmpsisqURoWJ=9h...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Relaying FFT spectrum data to another computer is certainly doable.
> 
> For example, N1MM Logger+ can relay its spectrum display window to other
> instances of N1MM+ over a LAN or the Internet. If you have a copy of N1MM+
> running at the radio site and equipped to display a spectrum window, that
> copy of N1MM+ can relay its spectrum window data to another copy of N1MM+
> running somewhere else. Either copy of N1MM+ can be the one doing the
> actual logging.
> 
> With a K3/K3S, at the radio site you would need an SDR such as the SDRPlay,
> or an LP-PAN plus a good sound card, plus software: Win4K3Suite, or N2IC's
> Waterfall Bandmap program, together with a copy of N1MM+. At the remote
> control site, all you need is N1MM+. See the online documentation for N1MM+
> (the Spectrum Display Window web page) for details.
> 
> 73,
> Rich VE3KI
> 
> 
> ------------------------------
> 
> Message: 18
> Date: Mon, 20 Nov 2017 16:58:12 -0800
> From: Walter Underwood <wun...@wunderwood.org>
> To: Elecraft <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <f5aecacd-7202-4b5b-9a70-657941722...@wunderwood.org>
> Content-Type: text/plain;    charset=us-ascii
> 
> Sending spectrum data means you only need to send the new line of data. So 
> every second or so, it sends another 1024 data points. With 16 bit integers, 
> that would be 2 kbytes, but simple arithmetic coding (lossless compression) 
> would reduce that to under a kbyte, or about 8000 bits/s. That is one packet 
> on a slow link.
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
> 
>> On Nov 20, 2017, at 4:50 PM, Richard Ferch <ve3...@gmail.com> wrote:
>> 
>> Relaying FFT spectrum data to another computer is certainly doable.
>> 
>> For example, N1MM Logger+ can relay its spectrum display window to other
>> instances of N1MM+ over a LAN or the Internet. If you have a copy of N1MM+
>> running at the radio site and equipped to display a spectrum window, that
>> copy of N1MM+ can relay its spectrum window data to another copy of N1MM+
>> running somewhere else. Either copy of N1MM+ can be the one doing the
>> actual logging.
>> 
>> With a K3/K3S, at the radio site you would need an SDR such as the SDRPlay,
>> or an LP-PAN plus a good sound card, plus software: Win4K3Suite, or N2IC's
>> Waterfall Bandmap program, together with a copy of N1MM+. At the remote
>> control site, all you need is N1MM+. See the online documentation for N1MM+
>> (the Spectrum Display Window web page) for details.
>> 
>> 73,
>> Rich VE3KI
>> ______________________________________________________________
>> 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
> 
> 
> 
> ------------------------------
> 
> Message: 19
> Date: Mon, 20 Nov 2017 17:09:53 -0800
> From: Rick Tavan <r...@tavan.com>
> To: Fred Jensen <k6...@foothill.net>
> Cc: Elecraft Reflector <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] K3 speaker with Remoterig
> Message-ID:
>    <canvona+pyo1pkab6dgwf89kcahbpn7hnsfkqg8npekt7g-j...@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> You can switch an external speaker (or two) between the radio and the RRC.
> You might need a little amplification, depending on the efficiency of the
> chosen speaker(s). Powered computer speakers should do nicely.
> 
> /Rick N6XI
> 
> 
> Rick Tavan
> Truckee, CA
> 
>> On Mon, Nov 20, 2017 at 12:31 PM, Fred Jensen <k6...@foothill.net> wrote:
>> 
>> Jorge,
>> 
>> You said "K3".  RemoteRig with a K3 is a bit different than with a K3s or
>> K3/0.  With the K3, the receive audio is on the SP jack on the RRC 1258.
>> It never gets into the control K3 radio.
>> 
>> 73,
>> 
>> Fred ["Skip"] K6DGW
>> Sparks NV DM09dn
>> Washoe County
>> 
>>> On 11/20/2017 10:47 AM, Jorge Diez - CX6VM wrote:
>>> 
>>> Hello
>>> 
>>> I use K3 speaker, I programmed RIT button to switch SPKR+PH to YES and NO
>>> 
>>> Now I connected Remoterig, and on control radio, I am not able to listen
>>> to
>>> K3 speaker
>>> 
>>> How can I do to listen to K3 speaker, so, to hear K3 speaker when  SPKR+PH
>>> = YES ?
>>> 
>>> 
>> ______________________________________________________________
>> 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 rta...@gmail.com
>> 
> 
> 
> ------------------------------
> 
> Message: 20
> Date: Mon, 20 Nov 2017 20:11:16 -0500
> From: Thom <k...@ki8w.com>
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] K1 Fix and Align
> Message-ID: <4846c9a4-27d4-4c6a-b9d7-cfbaf64a6...@ki8w.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> I built my K1 and I was so careful to make sure I did everything right.
> 
> I have the receiver aligned but for some reason I cannot get the 
> transmitter to align at all.
> 
> I do not have the time,? with everything going on, to try and 
> troubleshoot this thing.
> 
> I would like to find someone I can send this radio to and get it up and 
> running like it should.
> 
> Please send me a private email if you can help.
> 
> thanks
> 
> 73
> 
> Thom KI8W
> 
> k...@ki8w.com
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 21
> Date: Mon, 20 Nov 2017 17:14:35 -0800
> From: Fred Jensen <k6...@foothill.net>
> Cc: Elecraft Reflector <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <aa79b54e-62d2-4c9e-fdc1-2a99b21a4...@foothill.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Agreed Jim,? Only the top line of the waterfall changes, all the rest is 
> history that could easily be replicated at the control site. In that 
> scheme, one would just send the output of the FFT and do all the display 
> at the control site.? However, whatever is involved, I would also like 
> to be able to push the buttons and turn the knob.? The max BW required 
> at the 1st IF to just bring it down and feed my P3 is 200 KHz, and I 
> never use more than 50 KHz spans, usually 20 KHz on CW.? With RemoteRig, 
> my K3 looks, feels, and sounds like it is actually making the RF.? Would 
> be nice to include the P3 in that.
> 
> Interesting ensemble of engineering tradeoffs, no?
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 11/20/2017 3:52 PM, Jim Miller wrote:
>> Doing a screen grab is certainly possible a variety of ways. But it 
>> would seem to me that doing the FFT of a realistic size and update 
>> rate and just streaming the data to the control location would likely 
>> be more efficient. Most of the SVGA display is blank at any point in 
>> time and a waste of bandwidth. Doing an A/D converter and feeding an 
>> FPGA for the FFT must have been done before by the HPSDR guys. 
>> https://openhpsdr.org/
>> The control point can then display the data, average it as desired, 
>> provide a waterfall of it, etc.
>> 
> 
> 
> 
> ------------------------------
> 
> Message: 22
> Date: Mon, 20 Nov 2017 20:41:02 -0500
> From: Don Wilhelm <donw...@embarqmail.com>
> To: Thom <k...@ki8w.com>, elecraft@mailman.qth.net
> Subject: Re: [Elecraft] K1 Fix and Align
> Message-ID: <328d5f5e-5bfd-af04-ff9d-dc26b3e65...@embarqmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Thom,
> 
> I am ignoring your request for a private email - but I believe I can 
> help, and there may be other K1 users out there who may want similar 
> information.
> 
> First I need to ask what specifically are you having trouble with in the 
> transmit alignment.
> 
> If it is that you cannot adjust the pre-mixer and RF bandpass filters on 
> the band board, all I can say is that you should re-do the receive 
> alignment with a strong signal source of a known frequency within the 
> tuning range of the K1.  Although on-the-air signals may be sufficient, 
> they may not tell the entire story.
> 
> First make certain the BFO is adjusted properly to peak the FL3 passband 
> at your preferred sidetone pitch.
> Then turn the switch on the bottom of the K1 board to the TEST position 
> and adjust the TX Offset trimmer so the audio frequency is the same as 
> your sidetone pitch (use SPOT to zero beat).  Spectrogram is useful in 
> setting te audio pitch properly.  You can download Spectrogram from my 
> website www.w3fpr.com.  Scroll down on the opening page for the links.
> 
> After doing that, re-do the Premixer and RF Bandpass adjustments in 
> transmit mode with the OUT parameter set to 1.5 watts.  Adjust for peak 
> output power on each band.
> 
> I can do the alignment/repair/calibration of your K1 if you do not want 
> to pursue it on your own.
> 
> You can send me a private email and I will send you my service form.
> 
> 73,
> Don W3FPR
> 
>> On 11/20/2017 8:11 PM, Thom wrote:
>> I built my K1 and I was so careful to make sure I did everything right.
>> 
>> I have the receiver aligned but for some reason I cannot get the 
>> transmitter to align at all.
>> 
>> I do not have the time,? with everything going on, to try and 
>> troubleshoot this thing.
>> 
>> I would like to find someone I can send this radio to and get it up and 
>> running like it should.
>> 
> 
> 
> ------------------------------
> 
> Message: 23
> Date: Mon, 20 Nov 2017 17:50:49 -0800
> From: Brian Hunt <huntin...@coastside.net>
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Walwarts - linear supplies
> Message-ID: <741b2c11-cbcf-4dc9-884e-0dc7e9929...@coastside.net>
> Content-Type: text/plain;    charset=us-ascii
> 
> Be careful using the non-regulated linear wall warts. The open circuit 
> voltage can be more than 16 VDC and could be harmful to gear not rated that 
> high. Best to measure OC first!
> 
> 73, 
> Brian, K0DTJ
> 
> 
> ------------------------------
> 
> Message: 24
> Date: Mon, 20 Nov 2017 21:02:09 -0500
> From: Jim Miller <jtmille...@gmail.com>
> To: Fred Jensen <k6...@foothill.net>
> Cc: Elecraft Reflector <elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] Digitized IF over IP?
> Message-ID: <5acea57c-3783-4ded-a935-7825d6c3d...@gmail.com>
> Content-Type: text/plain;    charset=utf-8
> 
> And if it?s all bundled up as a P3/0-Mini I have no problem with that. 
> 
> 73
> 
> Jim ab3cv 
> 
> On Nov 20, 2017, at 8:14 PM, Fred Jensen <k6...@foothill.net> wrote:
> 
> Agreed Jim,  Only the top line of the waterfall changes, all the rest is 
> history that could easily be replicated at the control site. In that scheme, 
> one would just send the output of the FFT and do all the display at the 
> control site.  However, whatever is involved, I would also like to be able to 
> push the buttons and turn the knob.  The max BW required at the 1st IF to 
> just bring it down and feed my P3 is 200 KHz, and I never use more than 50 
> KHz spans, usually 20 KHz on CW.  With RemoteRig, my K3 looks, feels, and 
> sounds like it is actually making the RF.  Would be nice to include the P3 in 
> that.
> 
> Interesting ensemble of engineering tradeoffs, no?
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 11/20/2017 3:52 PM, Jim Miller wrote:
>> Doing a screen grab is certainly possible a variety of ways. But it would 
>> seem to me that doing the FFT of a realistic size and update rate and just 
>> streaming the data to the control location would likely be more efficient. 
>> Most of the SVGA display is blank at any point in time and a waste of 
>> bandwidth. Doing an A/D converter and feeding an FPGA for the FFT must have 
>> been done before by the HPSDR guys. https://openhpsdr.org/
>> The control point can then display the data, average it as desired, provide 
>> a waterfall of it, etc.
>> 
> 
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> End of Elecraft Digest, Vol 163, Issue 25
> *****************************************

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