Re: [Elecraft] Planning the next filters

[Neil Zampella]

To add something to what Don said:

I've been using my KX3 with a USB soundcard (SoundBlaster SBx) for 
digital modes, and WSJT-X modes especially for about two years now. 
Before that I was using an IC-718 with the same soundcard. You don't 
need to spend over $100 for a specialty piece of equipment that 
basically does the same thing two shielded stereo cables, a KXUSB cable 
and a cheap USB soundcard does.  You can do it for anywhere from $20 to 
60 bucks, the only criteria, at least for the WSJT-X modes, is that the 
soundcard must provide 16bit 48kHz audio.


That said, on MACs its been found that keeping the soundcard set to 
44100 Hz keeps the computer from having problems with WSJT-X, no one's 
quite sure why.


K3s owners have it a bit easier, with the built in USB for CAT and 
audio. K3 owners (without the USB KIO3B option) can use the same 
setup as my KX3.


73,

Neil, KN3ILZ


On 3/10/2018 11:20 PM, Don Wilhelm wrote:
There seems to be an ongoing concern about audio levels for digital 
modes.  This is not confined to the SignaLink, but applies to any and 
all soundcards used for digital modes.


There are at least two audio level controls - the Line In gain, and 
the soundcard output level (set in the computer for most soundcards, 
but with the front panel knob on the SignaLink). There is also a 3rd 
control in the software application often marked "POWER".  Those 
should all initially be set midrange, and then changed a bit from 
there to produce 4 bars on the ALC meter with the 5th bar flashing.  
That should keep you out of the clipping level.  If any controls are 
at a very high or low range, that is when you will run into clipping 
problems or insufficient audio drive.


For more detail and explanation of 'why', see the article on my 
website www.w3fpr.com.  Scroll down to the last article in the left 
column and click on the link.


Data mode operation does not require an exotic soundcard, most any 
will work.  The important parameter for soundcard data modes is the 
noise floor available for the soundcard.  Soundcards for Panadapter 
use need to have a sampling rate equal to (or exceeding) the bandwidth 
to be displayed, but that is not an important parameter for digital 
modes.  In other words, a 16 bit 32k (or greater) soundcard will work 
well for data modes.  The more expensive soundcards will likely have a 
lower noise level, but that is not guaranteed.


73,
Don W3FPR

On 3/9/2018 6:58 PM, Bill Frantz wrote:
Since SignaLinks seem to be a continuing topic, one thing I noticed 
with mine is that the manufacturer seems to have been upgrading the 
design. When I first heard (probably from Jim) that there were 
problems with the SignaLink, I found a web site with directions for 
fixing some of them. So I warmed up my soldering iron and opened my 
SignaLink. When I looked carefully, every single one of the issues on 
the web site had been addressed in my unit.


I got a Tascam 24 bit device, which I used for several years, but it 
wouldn't work on my Linux BeagleBone, because of the lack of drivers. 
It worked well on my Mac. Now I'm using the KIO3B upgrade to my K3 
and am quite happy with it. The SignaLink has moved to my portable 
KX3 station, where I'm looking for a smaller, lighter solution.






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[Elecraft] CW Paddle A/B switch

[john]

How are you switching your headphones and possibly microphone?  There are a
lot of SO2R devices that will switch everything plus allow you to use both
rigs simultaneously if desired. I use a this one:
http://microham-usa.com/store/product-info.php?pid10.html but perhaps even
the simple Dunstar
https://www.dunestar.com/store/product-list.php?Headphone-Switch-pg1-cid5.ht
ml can be modified to work with a key.

John KK9A 


Doug W5JV Wrote:

I have two radios and one cw paddle.  I'm looking for a small inline A/B
switch as would be used on stereo headphone sets to switch between sources.
The whole thing would be a "Y" cable with two 1/8" male stereo plugs on one
end and a single female jack on the other.  Switching would choose which
male plug is active.  Yes I can build one but before I reinvent the wheel, I
thought someone might have a source.

I'm tired of plugging and unplugging and I don't want or have the extra
space for another paddle.

Has anyone found such a switch?

Reply by private email please as this is off topic.

Thanks,

Doug W5JV

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[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

    It is amazing how good a walk on a sunny day feels; especially 
after you've had three weeks of snow storms and grey. Another few days 
like this and even the snow drifts will be gone.


   While QSB on twenty meters was not too bad it was very deep, but 
slow, on forty meters.  I gave one report of 529 to 589.  On both nets I 
had to search to find an opening between the WQP folks.



   On 14048.5 kHz at 2200z:

K6XK - Roy - IA

K4TO - John - KY

W0CZ - Ken - ND


   On 7044.5 kHz at z:

K6PJV - Dale - CA

K0DTJ - Brian - CA

AE6JV - Bill - CA

WM5F - Dwight - ID


K4TO & WM5F were both slightly above ESP.  When the QSB hit you guys you 
were gone.  But ten seconds later you were back again.


   Until next week 73,

   Kevin.  KD5ONS

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Re: [Elecraft] KX3 Utility Segmentation Fault in Linux

[Thomas Kluge]

Hi Rob,

When I tried to start one of the utility programs today I got an error:

(k3util:2054): GLib-CRITICAL **: g_hash_table_insert_internal:
assertion 'hash_table != NULL' failed
I think this is just a warning but it was followed by a segfault...

All my Elecraft utility programs were affected (k3util, p3util,
kpautil).

I'm running Gentoo Linux which is up-to-date (most of the packets are
the stable versions) and I was not sure when it worked last time...
I've started to look a bit deeper into it and dmesg showed me first an
issue with the libexpat and then with libpng. I've downgraded both
packages to the following versions:
expat: from version 2.2.1 to 2.1.0-r4
libpng: from version 1.6.29 to 1.6.27

Now I still get the Glib-errors (warnings) in the console - but
everything works again. It might be the same problem the KX3util...

Best regards
Tom, DL3DTH



Am Mittwoch, den 07.03.2018, 08:41 -0800 schrieb Howard Stephenson:
> Hi Rob,
> 
> From the Utility info on the web site:
> 
> X86-based Linux: GTK+ 2.8 or later, glibc-2.4, libstdc++.so.6 and cURL.
> 64-bit Linux requires 32-bit compatibility libraries.
> 
> If you do a search of the reflector archives you should be able to find a
> list of the 32 bit libraries needed:
> 
> 
> If that is not helpful drop an e-mail to supp...@elecraft.com, they have a
> template with the needed libraries listed that they'll be happy to send you.
> 
> 73,
> Howard Stephenson K6IA
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Re: [Elecraft] any KPA500 available

[Edward R Cole]

Yes, certainly a move from vacuum-tube to solid-state will happen.  I 
am doing that on 2m, selling my 8877 amp and replacing it with a 
1200w W6PQL LDMOS amp.


My reasons are to be able to remote locate the amp to the tower base 
(eliminating blower noise and HVPS).  This also eliminates long 
expensive low-loss coax lines.  4w will drive the new 2m amp to 1200w.


The 75% of new price sounds in the ball park for a used KPA500.  And 
I do not think over-supply of  used amps will submerge the price by 
much - quality is valued!  I think back to Collins in years past.


73, Ed - KL7UW

From: "Erik Basilier" 
To: "'Jamie WW3S'" , 
Subject: Re: [Elecraft] any KPA500 available
Message-ID: <043001d3b8ed$7d345d20$779d1760$@cox.net>
Content-Type: text/plain;   charset="us-ascii"

I bought my KPA500+KAT500 combo (great used condition, but power calibration
was way off) for $2100 shipped on 3/14/2017. I have seen several sell on QRZ
since then. If you keep watching there, you will find some. I just used
their "search" function to see some recent deals. One KPA500 went for $1750
on 2/5/2018. I have seen sellers asking $1900 not long ago; don't know it
they got that much. My impression is that the price is neither going up nor
down. Compared to the KPA1500 the price and capability differences are very
great, and the two markets are mostly separate. Many people probably go from
1.5kW HF tube amp's to the KPA1500. Someone interested in 6m legal limit
gets quite a deal compared to spending $$$ on a 6m-only legal limit amp.
73,
Erik K7TV


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] OT: CW Paddle A/B switch

[dick]

If two entirely different rigs pull paddle inputs up to different voltages
(say 5 and 12V), and with  the paddle lines tied together, current may flow
from one rig to the other when the paddle is not pressed.   A turned-off rig
might float or might pull down a paddle input. I'd measure the current flow
in the various scenarios (one or the other rig on/off, paddle inputs not
grounded).  A few diodes might remove potential problems.

If two rigs are turned on (for whatever reason), would you want them both
keyed?  

I'd personally favor a switch, and consider microphone, PTT footswitch,
keying lines with that same switch.  But that's possibly a lot more complex
than you need.

I bought an NCS-3240 Multi-Switcher some years back but haven't pressed it
into use.  It switches microphone and key line, but assumes an external
keyer rather than one built into the radio.

I personally found it less work and more flexible to use different paddles
and different microphones.

73 de Dick, K6KR

-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Jim Rhodes
Sent: Sunday, March 11, 2018 09:51
To: Doug Hensley 
Cc: Elecraft List 
Subject: Re: [Elecraft] OT: CW Paddle A/B switch

A question. Do you really need a switch? Are both rigs going to be on at the
same time? If not a simple headphone splitter should do the trick.

Jim Rhodes
K0XU

On Mar 11, 2018 9:52 AM, "Doug Hensley"  wrote:

> I have two radios and one cw paddle.  I'm looking for a small inline 
> A/B switch as would be used on stereo headphone sets to switch between 
> sources.  The whole thing would be a "Y" cable with two 1/8" male 
> stereo plugs on one end and a single female jack on the other.  
> Switching would choose which male plug is active.  Yes I can build one 
> but before I reinvent the wheel, I thought someone might have a source.
>
> I'm tired of plugging and unplugging and I don't want or have the 
> extra space for another paddle.
>
> Has anyone found such a switch?
>
> Reply by private email please as this is off topic.
>
> Thanks,
>
> Doug W5JV
>
>
>
>
>
>
> __
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> jimk...@gmail.com
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Re: [Elecraft] OT: CW Paddle A/B switch

[Rick Robinson]

A spst switch on one “hot” line will suffice and let you use both rigs at
the same time. No need for a splitter. Wire both to the key with switch
line going to one rig.

On Sun, Mar 11, 2018 at 3:43 PM Nr4c  wrote:

> Why a switch. Unless you’re gonna have both rigs on at same time.
>
> A simple “Y” adapter would seem easier.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
> > On Mar 11, 2018, at 12:50 PM, Jim Rhodes  wrote:
> >
> > A question. Do you really need a switch? Are both rigs going to be on at
> > the same time? If not a simple headphone splitter should do the trick.
> >
> > Jim Rhodes
> > K0XU
> >
> >> On Mar 11, 2018 9:52 AM, "Doug Hensley"  wrote:
> >>
> >> I have two radios and one cw paddle.  I'm looking for a small inline A/B
> >> switch as would be used on stereo headphone sets to switch between
> >> sources.  The whole thing would be a "Y" cable with two 1/8" male stereo
> >> plugs on one end and a single female jack on the other.  Switching would
> >> choose which male plug is active.  Yes I can build one but before I
> >> reinvent the wheel, I thought someone might have a source.
> >>
> >> I'm tired of plugging and unplugging and I don't want or have the extra
> >> space for another paddle.
> >>
> >> Has anyone found such a switch?
> >>
> >> Reply by private email please as this is off topic.
> >>
> >> Thanks,
> >>
> >> Doug W5JV
> >>
> >>
> >>
> >>
> >>
> >>
> >> __
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-- 
Rick Genesis 1-29
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Re: [Elecraft] OT: CW Paddle A/B switch

[Nr4c]

Why a switch. Unless you’re gonna have both rigs on at same time. 

A simple “Y” adapter would seem easier. 

Sent from my iPhone
...nr4c. bill


> On Mar 11, 2018, at 12:50 PM, Jim Rhodes  wrote:
> 
> A question. Do you really need a switch? Are both rigs going to be on at
> the same time? If not a simple headphone splitter should do the trick.
> 
> Jim Rhodes
> K0XU
> 
>> On Mar 11, 2018 9:52 AM, "Doug Hensley"  wrote:
>> 
>> I have two radios and one cw paddle.  I'm looking for a small inline A/B
>> switch as would be used on stereo headphone sets to switch between
>> sources.  The whole thing would be a "Y" cable with two 1/8" male stereo
>> plugs on one end and a single female jack on the other.  Switching would
>> choose which male plug is active.  Yes I can build one but before I
>> reinvent the wheel, I thought someone might have a source.
>> 
>> I'm tired of plugging and unplugging and I don't want or have the extra
>> space for another paddle.
>> 
>> Has anyone found such a switch?
>> 
>> Reply by private email please as this is off topic.
>> 
>> Thanks,
>> 
>> Doug W5JV
>> 
>> 
>> 
>> 
>> 
>> 
>> __
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Re: [Elecraft] KXPA100 DC current at 20 50 watts

[Walter Underwood]

This was already answered on the KX3 list. Of course, the amperage depends on 
the voltage and the mode.

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

> On Mar 11, 2018, at 4:48 AM, John Oppenheimer  wrote:
> 
> Hi KXPA100 users,
> 
> Can you report the DC input current at 20 and 50 output watts? Actual
> measurements will be most helpful.
> 
> John KN5L
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[Elecraft] Elecraft CW Net Correction

[kevinr]

With snow on the ground it is difficult to remember Daylight Savings 
Time begins today.


But as always the local times remain the same except for those of you 
who don't switch to DST.



14050 kHz at 2200z (3 PM PDT)

 7045 kHz at z (5 PM PDT)


73,

    Kevin.  KD5ONS

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Re: [Elecraft] OT: CW Paddle A/B switch

[Jim Rhodes]

A question. Do you really need a switch? Are both rigs going to be on at
the same time? If not a simple headphone splitter should do the trick.

Jim Rhodes
K0XU

On Mar 11, 2018 9:52 AM, "Doug Hensley"  wrote:

> I have two radios and one cw paddle.  I'm looking for a small inline A/B
> switch as would be used on stereo headphone sets to switch between
> sources.  The whole thing would be a "Y" cable with two 1/8" male stereo
> plugs on one end and a single female jack on the other.  Switching would
> choose which male plug is active.  Yes I can build one but before I
> reinvent the wheel, I thought someone might have a source.
>
> I'm tired of plugging and unplugging and I don't want or have the extra
> space for another paddle.
>
> Has anyone found such a switch?
>
> Reply by private email please as this is off topic.
>
> Thanks,
>
> Doug W5JV
>
>
>
>
>
>
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Re: [Elecraft] KPA500 Band Following

[Richard]

HALLELUJAH!

Thank you! If it had been a congressman, it would have bitten me.

Cheers!
Richard - W4KBX

> On Mar 11, 2018, at 11:00 AM, Michael Eberle  wrote:
> 
> The first thing I would do is check to see that the 'RADIO' option in the 
> KPA500 menu is set to 'K3.'
> 
> Mike - KI0HA
> 
> 
> On 3/11/2018 09:54, Richard wrote:
>> K3S - KPA500 - KAT500
>> 
>> A friend of mine who upgrades and repairs Elecraft stuff made me the two 
>> “15-pin” cables for band following. They work perfectly on his own K3S - 
>> KPA500 - KAT500 setup, both the tuner and the amp follow K3S band changes.
>> 
>> However, with the same cables on my setup, the tuner follows the radio, but 
>> the amp does not.
>> 
>> As an experiment, I plugged the cable from the K3S directly into the amp: 
>> still no band following.
>> 
>> Before I do any heavy lifting, can anyone suggest other causes and cures?
>> 
>> Cheers,
>> 
>> Richard Kunc — W4KBX
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[Elecraft] OT: Attn: KL7VK

[Rose]

Kirby,

Have been trying to reply to your inquiry and your e-mails
keep bouncing.

Please contact me...

73!

Rose - N7HKW
elecraftcov...@gmail.com
1-406-560-3738
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Re: [Elecraft] KPA500 Band Following

[Michael Eberle]

The first thing I would do is check to see that the 'RADIO' option in 
the KPA500 menu is set to 'K3.'


Mike - KI0HA


On 3/11/2018 09:54, Richard wrote:

K3S - KPA500 - KAT500

A friend of mine who upgrades and repairs Elecraft stuff made me the two 
“15-pin” cables for band following. They work perfectly on his own K3S - KPA500 
- KAT500 setup, both the tuner and the amp follow K3S band changes.

However, with the same cables on my setup, the tuner follows the radio, but the 
amp does not.

As an experiment, I plugged the cable from the K3S directly into the amp: still 
no band following.

Before I do any heavy lifting, can anyone suggest other causes and cures?

Cheers,

Richard Kunc — W4KBX
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[Elecraft] KPA500 Band Following

[Richard]

K3S - KPA500 - KAT500

A friend of mine who upgrades and repairs Elecraft stuff made me the two 
“15-pin” cables for band following. They work perfectly on his own K3S - KPA500 
- KAT500 setup, both the tuner and the amp follow K3S band changes.

However, with the same cables on my setup, the tuner follows the radio, but the 
amp does not.

As an experiment, I plugged the cable from the K3S directly into the amp: still 
no band following.

Before I do any heavy lifting, can anyone suggest other causes and cures?

Cheers,

Richard Kunc — W4KBX
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[Elecraft] OT: CW Paddle A/B switch

[Doug Hensley]

I have two radios and one cw paddle.  I'm looking for a small inline A/B switch 
as would be used on stereo headphone sets to switch between sources.  The whole 
thing would be a "Y" cable with two 1/8" male stereo plugs on one end and a 
single female jack on the other.  Switching would choose which male plug is 
active.  Yes I can build one but before I reinvent the wheel, I thought someone 
might have a source.

I'm tired of plugging and unplugging and I don't want or have the extra space 
for another paddle.

Has anyone found such a switch?

Reply by private email please as this is off topic.

Thanks,

Doug W5JV






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[Elecraft] KXPA100 DC current at 20 50 watts

[John Oppenheimer]

Hi KXPA100 users,

Can you report the DC input current at 20 and 50 output watts? Actual
measurements will be most helpful.

John KN5L
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