Re: [Elecraft] P3 TX Monitor with Two Sensors?

[Jean-François Ménard]

Hi everybody,

Thanks to Vic 4X6GP for the tips. 

I asked earlier today to Elecraft support to have an update on if we would like 
to use already own antenna coupler for those who already own an Elecraft W2.

There is the information I received from Elecraft support :

[ELECRAFT] If the W2 has been bought later half of 2016, it should be OK.  If 
it is older than that, he will need to either get new couplers or Remove and 
Replace several surface mount components.

And the modification to use older antenna couplers version consist of the 
following modifications: 

[ELECRAFT] You'll need to change C5 ,C6 and C7 to the updated value 470 pF

I will need to modify both couplers that I have. The 8 pole relay is an 
excellent idea. And to change from coupler 1 to coupler 2, I am planning to use 
the AUX from the K-Pod.


Best 73 de Jeff | VA2SS 

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Jeff | VA2SS
Jean-François Ménard

jean-francois.men...@va2ss.com 
www.VA2SS.com 

Membre de / Member of :
ARRL / AMSAT / QRP ARCI / FISTS / SKCC / MICHIGAN QRP CLUB

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Message sent from my portable device.

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Re: [Elecraft] Laptop Connection to KX3

[Harry Yingst via Elecraft]

Amazon sells an adapter cable (made by StarTech) that splits your laptops audio 
out into a separate mic and headphones jack.
https://www.amazon.com/gp/product/B004SP0WAQ?ref_=oh_aui_detailpage_o08_s00&redirect=true&psc=1&pldnSite=1



Or one that is the opposite Gender (TRRS Jack to two plugs)
https://www.amazon.com/gp/product/B0058DOWH6?ref_=oh_aui_detailpage_o08_s00&redirect=true&psc=1&pldnSite=1



And a TRRS Male to TRRS Male Cable
https://www.amazon.com/gp/product/B00DX6PXEQ?ref_=oh_aui_detailpage_o08_s00&redirect=true&psc=1&pldnSite=1




If I recall (My son has my KX3 Now) I used the TRRS Cable and the second 
adapter I listed.





  From: Peter Alterman 
 To: "elecraft@mailman.qth.net"  
 Sent: Friday, January 13, 2017 5:09 PM
 Subject: [Elecraft] Laptop Connection to KX3
   
My Samsung laptop has a single combined input and output socket that 
accommodates the four segment plug used with Android phones and iPhones.  How 
do I wire the plug to connect with the mic and phones sockets of the KX3 so I 
can run AFSK using the sound card on the laptop?


As always, thanks in advance for all advice,


73, Peter W2CDO
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[Elecraft] Laptop Connection to KX3

[Peter Alterman]

My Samsung laptop has a single combined input and output socket that 
accommodates the four segment plug used with Android phones and iPhones.  How 
do I wire the plug to connect with the mic and phones sockets of the KX3 so I 
can run AFSK using the sound card on the laptop?


As always, thanks in advance for all advice,


73, Peter W2CDO
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[Elecraft] FS: Selling my K2

[Paul Webb]

For Sale is my K2 SN:  7629.  Perfect condition full output all bands.  Not a 
scratch on it.  S-meter is not working.  $675  email off list.

Paul, K5HKX



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Re: [Elecraft] WSJT-X Problem with K3S

[Guy Olinger K2AV]

Can't argue entirely with success, but often folks just want to put the
trouble In a cage so they can get on with having fun. I get that, it's a
hobby. For sure, been there done that.

But all you have done for the moment is put the snarling dog in a cage
where it can't bite. If you ever run an amp the trouble is likely to return
in some form. You still have the snarling dog.

And there are unanswered oddities like why the RFI only affected the one
sequence of commands.

For others reading this thread, the exhortations for VOX or PTT are
very well taken, particularly where deciding on methodology is part of
planning.

Having a PTT and not-PTT signal available to the station *system* can be
very useful for such things as shutting off remote RX amps during transmit.
Many PC station programs like N1MM+ can add transfer delays only where they
apply, as do WinKey equipped devices which can apply CW key speed related
"word space" intervals.

Not-PTT drives a simple circuit to supply a keyed 12 VDC supply that is
only on when it's safe from TX induced voltages, and can drive relays
to detune towers and de-resonate wires when RX.

Given that the K3S board has both a USB/serial chip and a sound card on it,
no workable scheme proven robust for the K3 has to be discarded for the
K3S.

All that aside, glad you you managed to cage the snarling dog, by whatever
means.  :>)

73, Guy K2AV

On Thursday, January 12, 2017, John Stengrevics 
wrote:

> Three turns of the USB cable through a #43 ferrite and I am good to go at
> full power (95 watts).
>
> John
> WA1EAZ
>
> > On Jan 12, 2017, at 2:40 PM, Edward R Cole  > wrote:
> >
> > Now that the thread has morphed to RFI:
> >
> > I was getting complaints from my wife that my transmissions were getting
> into the home theater audio when she was watching TV.  Specifically, it was
> getting into the new powered woofer.  I determined this was only happening
> on 6m and at 1000w.
> >
> > So I had an extra ferrite donut from building the 50v switching PS and
> wrapped the coaxial audio line thru it a few times, then added a clamp on
> ferrite to the ac cord feeding the woofer.  That fixed it!
> >
> > picture of these applied to the 50v swps:
> > http://www.kl7uw.com/6m_control_panel_back_3.jpg
> >
> > 73, Ed - KL7UW
> >  http://www.kl7uw.com
> > Dubus-NA Business mail:
> >  dubus...@gmail.com 
> > __
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>
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>


-- 
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[Elecraft] K3: For Sale: K3S Station

[Robert Dorchuck]

I have the following for sale:
Complete Elecraft K3S Station consisting of a K3S, P3,
KPA500, MFJ998 Tuner and Astron RS50M power supply.
The K3S has the following options:
KRX3 - second receiver
KDVR - digital voice recorder
KPA3 - 100 watt amplifier module
KTCXO3 - .5ppm Reference oscillator
The following filters are installed:
  Main Receiver: 6.0, 2.8, 1.8 and .4
  Sub Receier: 2.8 and 1.8
  All filters are 8 pole.
Serial is 107XX and the IMD Modification was installed by Elecraft
in November and the radio aligned to factory specs. The radio was built
from a kit in July 2015.  The radio does NOT have the antenna tuner.
The P3 was built from a kit in 2013 and has the Transmit Monitor option
with the 2KW coupler installed.
The KPA500 was built from a kit in 2011. Serial is 3XX.
The MFJ998 was purchased in December 2015.
The Astron RS50M is about 8 years old.
The package includes all interconnecting cables and a RigRunner.

Pickup only in Moreno Valley, CA please.
Please contact me off list.
Price is $5200.
Thanks
Bob W6VY
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Re: [Elecraft] P3 TX Monitor with Two Sensors?

[Alan Bloom]

Yes, you could use an 8-pole double-throw relay to switch between the 
two sensors.


The P3 and W2 use the same information from the sensors and the same 
control lines.


Alan N1AL


On 01/13/2017 04:59 AM, Jean-François Ménard wrote:

Hi, thanks for the information. I just sent an email to Elecraft
support to let me know if I should check something prior the
utilization of the couplers I already have.

I really like to manual switch idea…. But I still wondering fi I
could use the AUX behind the K-Pod to manually switch between the 2
couplers already have, by creating a small circuit using a relay. It
could be a good way to maximise the use of the K-Pod too?!?!

Also, the information given by the P3 compared with the W2….. major
difference ??? more accurate ??? What are the major goals to use
antenna couplers with P3 instead of a W2 ???

Thanks for the information.

73 de Jeff | VA2SS

__ Jeff | VA2SS Jean-François
Ménard


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Re: [Elecraft] P3 TX Monitor with Two Sensors?

[Jean-François Ménard]

Hi, thanks for the information. I just sent an email to Elecraft support to let 
me know if I should check something prior the utilization of the couplers I 
already have.

I really like to manual switch idea…. But I still wondering fi I could use the 
AUX behind the K-Pod to manually switch between the 2 couplers already have, by 
creating a small circuit using a relay. It could be a good way to maximise the 
use of the K-Pod too?!?!

Also, the information given by the P3 compared with the W2….. major difference 
??? more accurate ??? What are the major goals to use antenna couplers with P3 
instead of a W2 ???

Thanks for the information.

73 de Jeff | VA2SS 

__
Jeff | VA2SS
Jean-François Ménard

jean-francois.men...@va2ss.com 
www.VA2SS.com 

Membre de / Member of :
ARRL / AMSAT / QRP ARCI / FISTS / SKCC / MICHIGAN QRP CLUB

Message envoyé à partir de mon appareil mobile.
Message sent from my portable device.

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Re: [Elecraft] WSJT-X Problem with K3S

[Dave B via Elecraft]

On 13/01/17 02:06, elecraft-requ...@mailman.qth.net wrote:
> The physical RTS line is moved from the computer to the output of
> the USB UART (in the K3).  However, there is still a physical RTS
> line.  The set RTS/DTR/Break and clear RTS/DTR/Break commands are
> much more robust than sending serial data via USB.

To do that, you are still sending data over the USB link.  Not the same
data, but data none the less.

So, any RF ingress into the USB systems (at either end of the cable!)
Can still cause trouble.

Note, clip-on ferrite cores have very little effect at MF/HF
frequencies, unless you can wrap several turns of the USB cable through
them.  And even then, it depends on what the exact problem is where and
how the RF get's in.

I often wonder why we don't use fibre optic links for rig control and
audio.  TosLink cable and devices are available for the audio, and it's
relatively trivial to send (RS232 like) data down a fibre too.

I'll get my coat...

73.

Dave G0WBX.

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