[Elecraft] My Windows 10 woke up today with dead audio output.

[Pete Barth]

My Windows 10 woke up today with dead audio output.

It took awhile for me to see the X next to the speaker logo.
(If this is already known, sorry I didn't see it, otherwise here we go:)
After coffee I found (by Google search) the solution.
"With auto updates Win 10 has a flaw ONLY on SOME computers."
My Win 10 equipped faithful HP-15 had it.

This simple update solved it.
herehttp://www.catalog.update.microsoft.com/Search.aspx?q=KB4468550
I used the NON server second offering:

Update for Windows 10 1709, Windows 10 1803 and Windows 10 1809 for
x64-based Systems (KB4468550) Windows 10 Critical Updates 10/26/2018 n/a 37
KB
 Push DOWNLOAD, then reboot.

Of course I forgot to reboot for awhile. My second cup of coffee woke me up
and then I did reboot. Now it works.
The hint is the X on the spkr. logo at the bottom of the page.

(Grateful Elecraft addict, in Thailand with my new KX-3 (hiding right
behind my K2)
using a 160 mtr. full sized VERTICAL dipole hung from the side of a 38
floor Condo,twinlead fed using sections of chopsticks). Must be 250-350
feet up there on the West side. Here for three months,still have not rcvd
reciprocal license.


-- 
Pete / พีท / W6LAW
323 460-7018Hollywood home
323 461-7018Pete cell
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Re: [Elecraft] KPA1500 LO GAIN FAULT

[Ed gilliland]

Eric,

I haven't received a call from Elecraft Support.

On 5/1/2019 17:31, Eric Swartz - WA6HHQ, Elecraft wrote:

Hi Ed,

I or one of our support engineers will contact you directly after we 
review the config file you sent us. Most likely by either late today 
or early tomorrow.


73,
Eric
/elecraft.com/

On 5/1/2019 2:01 PM, Ed gilliland wrote:

Well I spoke too soon.

I still have a KPA1500 problem.  I am not getting the LO GAIN FAULT 
and I do have RF out but I cannot get 1500 watts output with 50 watts 
drive.


I connected the KPA1500 to a dummy load and loaded the the latest 
version of the KPA1500 utility.


With 20 watts drive the utility displays the following readings.

INPUT         20W

PA VOLTAGE        53V

PA CURRENT        19A

EFFICIENCY        21%

POWER OUTPUT      254W



With 50 watts drive the utility displays the following readings.


INPUT           50W

PA VOLTAGE      53V

PA CURRENT      34A

EFFICIENCY  40%

POWER OUTPUT    715W

Ed

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Re: [Elecraft] Choice of signal source for KX3 extended temperature calibration?

[Bob McGraw K4TAX]

I'd hang a 1N914 diode across the output of the Siglent generator and 
tune it to 25 MHz.  The 2nd harmonic should be strong enough.


73

Bob, K4TAX


On 5/2/2019 5:26 PM, Frank O'Donnell wrote:
Which of the following two signal sources would enable the best 
results from the KX3's extended temperature calibration?


--Elecraft's XG50 board, which puts out 49.380 MHz ± 5 ppm.

-- Siglent SDG 2042X waveform generator, with input from a Trimble 
Thunderbolt GPSDO. Maximum frequency on the Siglent is 40 MHz.


The calibration instructions call for using a signal source close to 
50 MHz. Is 40 MHz close enough? The XG50 is much closer to 50 MHz, 
whereas the Siglent/Trimble potentially has the capability of being 
considerably more accurate. I'm interested in squeezing as much 
frequency stability out of the KX3 as possible.


Thanks and 73,

Frank O'Donnell K6FOD

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[Elecraft] Choice of signal source for KX3 extended temperature calibration?

[Frank O'Donnell]

Which of the following two signal sources would enable the best results 
from the KX3's extended temperature calibration?


--Elecraft's XG50 board, which puts out 49.380 MHz ± 5 ppm.

-- Siglent SDG 2042X waveform generator, with input from a Trimble 
Thunderbolt GPSDO. Maximum frequency on the Siglent is 40 MHz.


The calibration instructions call for using a signal source close to 50 
MHz. Is 40 MHz close enough? The XG50 is much closer to 50 MHz, whereas 
the Siglent/Trimble potentially has the capability of being considerably 
more accurate. I'm interested in squeezing as much frequency stability 
out of the KX3 as possible.


Thanks and 73,

Frank O'Donnell K6FOD

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[Elecraft] KPA1500 Macro for antennas

[Gill via Elecraft]

I have 2 HF antennas which I manually switch on ANT1 plus a beam for
20-6M on ANT2. Is it possible to use a macro to select separate tuning
solutions for the ANT1 input? Antennas are directional & I use them for
160M-30M. Since the solutions are in the amp's memory, it would be nice
to retrieve the solution or use a rotating macro to select between two
solutions on each band for ANT1. Anyone have any ideas?
Thanks


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Re: [Elecraft] KFL3A-400 vs. KFL3C-400

[Eric Swartz - WA6HHQ, Elecraft]

Hi Greg,

Very little. Both have similar passbands and protect the subsequent IF and DSP 
stages from overload by signals outside of their passband.  Note that we also 
cascade the K3 and K3S DSP filtering after the crystal filters to further 
improve the ultimate rejection of the filters.


73,
Eric
/elecraft.com/

On 5/1/2019 7:04 PM, hg chapoton wrote:

What's the difference?

greg/na8v

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Re: [Elecraft] KX3/PX3 Keyboards

[Bob N3MNT]

I have been using a Tecknet X315 wireless keyboard for several years with no
issues. 



--
Sent from: http://elecraft.365791.n2.nabble.com/
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[Elecraft] KX3 for sale.

[Dean L]

KX3 WITH:
Roofing filter
Battery/clock
Atu
Great shape
Have new side handles

$1200
Reason for selling?
I don't need 2

Reply direct

Thanks and 72

Dean/K2WW
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[Elecraft] Dummy load

[richard gilley]

Hi, I want to thank all those that provided suggestions and insight.
As my needs are to help determine inside or outside problems and cost is 
important basic may be suitable.

Richard AD1G 73 
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Re: [Elecraft] KX3/PX3 Keyboards

[Denis Dimick]

Awesome, thanks!

It's a good place to start for me, and gives me an idea of what I may need.
Wonder if Paul wants any more input, and what needs to be tested.

Denis
KC6AUP

|--
| Sent from my Black and Decker Toaster Oven
|--


On Wed, May 1, 2019, 23:22 David Christ  wrote:

> I did find this.  Not new but maybe a start.
>
> David K0LUM
>
>
> "The list you speak of is a document that I am working on right now that
> lists the keyboard makes and models that have been tested with the Elecraft
> PX3.   This information is coming from customers and myself.   Until I
> finish adding keyboards to the list and publishing it on the Elecraft
> website, here is a temporary link to my current list:
> px3_keyboard_list_A2.pdf
> https://elecraft.egnyte.com/dl/uxe0dNf0F2
>
> 73,
>
> Paul “
>
>  >
>
> On May 1, 2019, at 10:05 PM, Denis Dimick  wrote:
>
> Does anyone have a working URL for the Elecraft Recommended Keyboards to be
> used with the PX3?
>
> I searched through the mailing list, and only found a dead link for this.
>
> Denis
> KC6AUP
>
>
>
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