[Elecraft] Elecraft CW Net Errata sheet

[kevin]

I worked through the nets in my memory and I did not feel right. I was 
certain I had worked Roy in Iowa but didn't remember typing his name.  I 
was right, I had made a mistake.  Mea culpa.




  On 14050.5 kHz at 2200z:

W0CZ - Ken - ND
NO8V - John - MI
=> K6XK - Roy - IA <=
K0DTJ - Brian - CA
KB3FBR - Joe - PA
K4JPN - Steve - GA

  On 7047.5 kHz at z:

KG7V - Marv - WA
W0CZ - Ken - ND
K0DTJ - Brian - CA
KL7CW - Rick - AK
K6PJV - Dale - CA

Until next week 73,

   Kevin.  KD5ONS


-
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[Elecraft] Elecraft CW Net Report

[kevin]

Good Evening,

  Conditions were not too bad.  I had expected a CME of more vigor.  
This one rattled the ionosphere but did not leave much behind.  Neither 
I, nor my brother in Wisconsin, saw any aurora. Clear skies with no 
moon, if they had been there ...  However, every signal I copied had 
some form of QSB.  I know I gave one report of S2 to S9.  Some had fast 
QSB, but all had the slower kind.  The low noise level allowed copy to 
S0; the QSB simply added to the fun.


   Forty meters changed as the second net progressed.  Next week some 
of us have a time change.  The first net will stay at 2200z. I think.  
Depends upon where the second net winds up.  I expect the band to be 
changing quickly around net time.  I'll start guarding the frequency 
earlier and see how it goes.  I will solidify this for next week's 
announcement.  Just a little forewarning.  It all depends on the sun 
angle at net time.


   I think I will go searching for the spooks at W0O on forty meters.  
They should be haunting there.



  On 14050.5 kHz at 2200z:

W0CZ - Ken - ND

NO8V - John - MI

K0DTJ - Brian - CA

KB3FBR - Joe - PA

K4JPN - Steve - GA


  On 7047.5 kHz at z:

KG7V - Marv - WA

W0CZ - Ken - ND

K0DTJ - Brian - CA

KL7CW - Rick - AK

K6PJV - Dale - CA



Until next week 73,

   Kevin.  KD5ONS


-





The Mississippi Delta was shining
Like a National guitar
I am following the river
Down the highway
Through the cradle of the civil war


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[Elecraft] 80M Elecraft SSB Net 10/30/2021 ET/11/1/2021 UTC

[Dave New]

The 80M Elecraft SSB Net met at 9pm ET Sunday, 0100 UTC Monday

Checkins:

N8SBE   Dave   MI K3S KPA500   net control
WB8HRO  TimMI FT-450D KPA500
K8NUCarl   OH FT-DX101D   GENESIS III
WM6PSteve  GA K3S KPA1500
N8TTR   Mike   IN K3
AE6JV   Bill   NH K3   net relay
N2TNQ   LemNJ K3  KPA500

I indicated amps to give an idea of the power folks were running, but
I may have forgotten a couple, please correct me if so.

Also, a reminder that starting next week, with the US time change to  
standard time,
the nets will meet at the same time UTC, which mean they will all  
shift an hour earlier

in local time.  The 80M net will meet at 8pm ET Sunday, for example.

73,

-- Dave, N8SBE



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Re: [Elecraft] Problem Tuning K3

[David Gilbert]

No, that isn't true at all.  FT8 is indeed a WEAK SIGNAL mode, but in no 
way is it limited to low power ... other than the key down capability of 
the rig, of course.  I've used a KW on FT8 on 160m to work Japan and the 
rest of SE Asia in spite of the 2,000 foot high mountain that sits less 
than two miles away from me in direct line to that area.  When using 
high power on FT8 you want to make sure you have a very clean signal, of 
course, but it's a complete fallacy to think that it is strictly a low 
power mode.


Dave   AB7E


On 10/31/2021 3:26 PM, D Remy wrote:

I though FT8 was a superb weak signal mode at 5 to 10 watts at the most.


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Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with the K4

[Fred]

Hmmm ... and here I thought I was way too old to learn new things.

1.  There's a K-Pod utility
2. There's an update for K-Pod firmware
3.  My K-Pod runs with just the flat cable inserted and no wall wart needed
4.  To get the K-Pod utility to work, you have to do some finger 
gymnastics on F1/F4

5. The new FW rev really does change the encoder rate

All I'm missing now is, "Do I like my old rate [1/2 the VFO A rate] or 
the 1:1 rate?"  I'll try the new 1:1 for awhile.  Odds are very high 
I'll get used to it right away and not notice the difference.


73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

Jim McDonald wrote on 10/31/2021 4:05 PM:

From: Bob Wilson, N6TV 
Sent: Sunday, October 31, 2021 17:52
To: Jim McDonald 
Cc: j...@kk9a.com; Elecraft Reflector 
Subject: Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with 
the K4

Did you try upgrading the K-POD firmware to 1.12 to use these new features?

1.12 10/20/2021
Holding down F4 on power up selects encoder 1:1 rate.
Holding down F5 on power up selects 1:0.5 rate.

73,
Bob, N6TV



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Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with the K4

[Jim McDonald]

Yes.

73,  Jim N7US

From: Bob Wilson, N6TV 
Sent: Sunday, October 31, 2021 17:52
To: Jim McDonald 
Cc: j...@kk9a.com; Elecraft Reflector 
Subject: Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with 
the K4

Did you try upgrading the K-POD firmware to 1.12 to use these new features?

1.12 10/20/2021
Holding down F4 on power up selects encoder 1:1 rate.
Holding down F5 on power up selects 1:0.5 rate.

73,
Bob, N6TV

On Sat, Oct 30, 2021 at 8:26 PM Jim McDonald 
mailto:j...@n7us.net>> wrote:
I have tried all three settings – 100, 200, and 400.  The K-Pod tuning rate is 
half the rate of the K3/K3S.

73,  Jim N7US

From: Bob Wilson, N6TV mailto:n...@arrl.net>>
Sent: Saturday, October 30, 2021 22:22
To: j...@kk9a.com
Cc: Jim McDonald mailto:j...@n7us.net>>; Elecraft Reflector 
mailto:elecraft@mailman.qth.net>>
Subject: Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with 
the K4

What is CONFIG:VFO CTS set to?  Did you try changing it?
73,
Bob, N6TV

On Sat, Oct 30, 2021, 8:06 PM mailto:j...@kk9a.com>> wrote:
I was just on 40m and my K-Pod VFO is definitely 1/2 the rate of my K3S's VFO.

John KK9A

-Original Message-
From: Jim McDonald [mailto:j...@n7us.net]
Sent: Friday, October 29, 2021 7:19 PM
To: Bob Wilson, N6TV; j...@kk9a.com; Elecraft Reflector
Subject: RE: [Elecraft] Elecraft K-Pod manual updated -- now covers use with 
the K4

My K-Pod tune at half the rate of the K3S at all three VFO CTS settings.

If Elecraft could do it, I'd like for the K3/K3S F/W to provide the option for 
the K-Pod to tune at the same rate.

73,  Jim N7US

-Original Message-
From: elecraft-boun...@mailman.qth.net 
mailto:elecraft-boun...@mailman.qth.net>> On 
Behalf Of Bob Wilson, N6TV
Sent: Friday, October 29, 2021 16:59
To: j...@kk9a.com; Elecraft Reflector 
mailto:elecraft@mailman.qth.net>>
Subject: Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with 
the K4

In the K3, if you change *CONFIG:VFO CTS*, the VFO frequency moves faster at 
400 than at 100 (counts per turn), but the K-POD always tunes at 100 or
200 counts per turn (can't remember which).  The K-POD ignores the VFO CTS 
setting on a K3.

In the K4, the equivalent setting is *MENU:VFO Counts per Turn*, and *both* the 
VFO knob and the K-POD tuning rates are affected equally.

Just spin one knob exactly one full 360° turn clockwise, then spin the other 
knob full turn counterclockwise.  If you don't end up back on the frequency 
where you started, it means the tuning rates are not the same.

73,
Bob, N6TV


On Fri, Oct 29, 2021 at 11:25 AM Fred 
mailto:k6dg...@gmail.com>> wrote:

> "... except for the slow tuning."   I must be missing something.
> My K-Pod tunes at the same rate as the K3. I have one of the K-Pod
> buttons emulating the FINE/COARSE button on the radio ... use it all the time.
> Maybe the rates I have my K3 configured for just happen to match the
> encoder in the K-Pod?
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> j...@kk9a.com wrote on 10/28/2021 8:07 PM:
> > I really like the K-POD, except for the slow tuning. Too bad that
> > the K3 firmware "cannot" reprogram it.
> >
> > John KK9A
> >
> >
> > Bob Wilson, N6TV wrote:
> >
> > Yes, this only works with the K4.  The K3 firmware cannot reprogram
> > the K-POD encoder to match the K3's tuning rate.
> >
> > 73,
> > Bob, N6TV
> >
> >
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Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use with the K4

[Bob Wilson, N6TV]

Did you try upgrading the K-POD firmware to 1.12 to use these new features?

1.12 10/20/2021
Holding down F4 on power up selects encoder 1:1 rate.
Holding down F5 on power up selects 1:0.5 rate.

73,
Bob, N6TV

On Sat, Oct 30, 2021 at 8:26 PM Jim McDonald  wrote:

> I have tried all three settings – 100, 200, and 400.  The K-Pod tuning
> rate is half the rate of the K3/K3S.
>
>
>
> *73,  Jim N7US*
>
>
>
> *From:* Bob Wilson, N6TV 
> *Sent:* Saturday, October 30, 2021 22:22
> *To:* j...@kk9a.com
> *Cc:* Jim McDonald ; Elecraft Reflector <
> elecraft@mailman.qth.net>
> *Subject:* Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use
> with the K4
>
>
>
> What is *CONFIG:VFO CTS* set to?  Did you try changing it?
>
> 73,
> Bob, N6TV
>
>
>
> On Sat, Oct 30, 2021, 8:06 PM  wrote:
>
> I was just on 40m and my K-Pod VFO is definitely 1/2 the rate of my K3S's
> VFO.
>
> John KK9A
>
> -Original Message-
> From: Jim McDonald [mailto:j...@n7us.net]
> Sent: Friday, October 29, 2021 7:19 PM
> To: Bob Wilson, N6TV; j...@kk9a.com; Elecraft Reflector
> Subject: RE: [Elecraft] Elecraft K-Pod manual updated -- now covers use
> with the K4
>
> My K-Pod tune at half the rate of the K3S at all three VFO CTS settings.
>
> If Elecraft could do it, I'd like for the K3/K3S F/W to provide the option
> for the K-Pod to tune at the same rate.
>
> 73,  Jim N7US
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> On Behalf Of Bob Wilson, N6TV
> Sent: Friday, October 29, 2021 16:59
> To: j...@kk9a.com; Elecraft Reflector 
> Subject: Re: [Elecraft] Elecraft K-Pod manual updated -- now covers use
> with the K4
>
> In the K3, if you change *CONFIG:VFO CTS*, the VFO frequency moves faster
> at 400 than at 100 (counts per turn), but the K-POD always tunes at 100 or
> 200 counts per turn (can't remember which).  The K-POD ignores the VFO CTS
> setting on a K3.
>
> In the K4, the equivalent setting is *MENU:VFO Counts per Turn*, and
> *both* the VFO knob and the K-POD tuning rates are affected equally.
>
> Just spin one knob exactly one full 360° turn clockwise, then spin the
> other knob full turn counterclockwise.  If you don't end up back on the
> frequency where you started, it means the tuning rates are not the same.
>
> 73,
> Bob, N6TV
>
>
> On Fri, Oct 29, 2021 at 11:25 AM Fred  wrote:
>
> > "... except for the slow tuning."   I must be missing something.
> > My K-Pod tunes at the same rate as the K3. I have one of the K-Pod
> > buttons emulating the FINE/COARSE button on the radio ... use it all the
> time.
> > Maybe the rates I have my K3 configured for just happen to match the
> > encoder in the K-Pod?
> >
> > 73,
> >
> > Fred ["Skip"] K6DGW
> > Sparks NV DM09dn
> > Washoe County
> >
> > j...@kk9a.com wrote on 10/28/2021 8:07 PM:
> > > I really like the K-POD, except for the slow tuning. Too bad that
> > > the K3 firmware "cannot" reprogram it.
> > >
> > > John KK9A
> > >
> > >
> > > Bob Wilson, N6TV wrote:
> > >
> > > Yes, this only works with the K4.  The K3 firmware cannot reprogram
> > > the K-POD encoder to match the K3's tuning rate.
> > >
> > > 73,
> > > Bob, N6TV
> > >
> > >
>
>
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Re: [Elecraft] Problem Tuning K3

[D Remy]

Hey Jim!  I though FT8 was a superb weak signal mode at 5 to 10 watts at the 
most.  Nevertheless, I’ve had an inconsistent issue similar to yours.  One 
incident was resolved by backing down on the drive to 20w.  Another time I 
tuned up way off the chosen frequency such that the tuner had to make some 
major change.  Then I went back to near the desired frequency and it re-tuned 
just fine. So, I will be monitoring this thread with great interest to see what 
other responses you get.  73, David, NS4V


David R. Hourdequin, PE
Specialty Heavy Timber Engineer
828-421-6216

> On Oct 31, 2021, at 15:54, Jim Ruff via Elecraft  
> wrote:
> 
> I’m running a K3, KPA500 and a KAT500. My antenna is an 80m OCFD.  When I 
> operate FT8, the rig tunes perfectly on all bands.  When I was operating SSB 
> in the DX contest this weekend, the rig would not tune on any of the SSB 
> frequencies or bands.  If I turned off the KPA500 and the KAT500, the K3 
> would tune all bands and frequencies with it’s internal tuner.  Any ideas on 
> what is causing this to happen?Thanks,Jim W7JHR
> 
> 
> Sent from Yahoo Mail for iPad
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Re: [Elecraft] center fed dipole

[Ray]

Your Guessing !
Did you Model it ???
Then you will know……..
Ray WA6VAB K3



Windows 0

From: Bob McGraw
Sent: Saturday, October 30, 2021 6:17 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] center fed dipole

I don't understand the use of the 4:1 balun.  On 80M the feed Z of that 
antenna is more likely 25 to 50 ohms.  The 4:1 balun would present a 
impedance to the RG-213 of 6.5 to 12.5 ohms.  You would be much better 
with a 1:1 balun configuration.  Remember one is not matching the feed 
line impedance but is matching the antenna impedance.

The ideal use of a 4:1 balun is with a folded dipole antenna which 
presents a 200 to 300 ohm impedance.  Now the feed line Z is much closer 
matched and the 4:1 balun gets the Z to the coax in the 50 to 75 ohm 
range.  Much more efficient.  This of course is a single band antenna.

See https://www.dj0ip.de/balun-stuff/  for good, accurate, and reliable 
information on baluns and their usage.  Most hams have it wrong as well 
as most manufactures of antenna tuners who include a 4:1 balun.

73

Bob, K4TAX



On 10/30/2021 5:07 PM, elecraft-requ...@mailman.qth.net wrote:
> Message: 11
> Date: Fri, 29 Oct 2021 18:25:44 -0700 (PDT)
> From: MIKE ZANE
> To:"Elecraft@mailman.qth.net"  
> Subject: [Elecraft] center fed dipole
> Message-ID:<1705203692.528740.1635557144...@connect.xfinity.com>
> Content-Type: text/plain; charset=UTF-8
>
> I have no problem with a 130 ft dipole fed with 25 feet of 450 ohm ladder 
> (window) line to a 4:1 4K balun with 15 feet of RG-213 to my MFJ 989C tuner. 
> I have run from 5w to 1 KW with itno problems at all.  n6zw

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Re: [Elecraft] what soundcard for K3 and Mac

[Walter Underwood]

This list was updated in 2018. 

http://www.telepostinc.com/soundcards.html 


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

> On Oct 31, 2021, at 11:54 AM, Joe Subich, W4TV  wrote:
> 
> 
>> What I haven’t quite figured out is how important is this really is
>> to weak signal digital decoding.
> 
> Low noise in a sound card is important to weak signal decoding in two
> ways:
> 
> 1) you want the inherent noise floor in the sound card to be 10 to 15
>   dB *LESS* than the minimum - receiver noise + "antenna" - noise.  On
>   VHF with a very quiet receiver the receiver noise can be quite low.
> 
> 2) high noise level in a sound card directly subtracts from the dynamic
>   range (ADC clipping - noise floor).  With a high noise floor, strong
>   signals either overflow the ADC or the receiver AGC must reduce gain
>   with moves the weak signals below the (higher) noise floor.
> 
>> After testing, I settled on a Sound BlasterX G5 model SB1700 which 
> > tested at about -120dB noise level.
> 
> -128 dB relative to what?  A quality 16 bit sound card has a theoretical
> dynamic range of 97dB - a quality 16 bit card (low noise) will produce
> about 90 dB dynamic range in practice.  A 24 bit sound card has 144 dB
> theoretical dynamic range but a practical 24 bit sound card will produce
> maybe 115 dB dynamic range but to take advantage of that dynamic range
> the sound card (any audio preamps and the ADC) need to operate with a
> supply voltage greater than the typical 3.3 or 5 V USB supply.  A 24 bit
> sound card with a 5 V (USB) supply will be lucky to achieve 100 dB
> dynamic range.
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
> On 2021-10-31 10:41 AM, SteveL wrote:
>> Dave,
>> This interest caught my eye awhile back:
>> http://members.chello.at/oe1mww/sound-card-check/ 
>> 
>> I’ve tested several of the inexpensive (<$10) nameless USB sound card 
>> dongles using his method and saw a wide variety of noise floors - however 
>> significantly higher than a name brand USB card.  After testing, I settled 
>> on a Sound BlasterX G5 model SB1700 which tested at about -120dB noise 
>> level.  How does this compare?  My nameless sound dongles noise level tested 
>> -70 to -90dB - a big difference.
>> What I haven’t quite figured out is how important is this really is to weak 
>> signal digital decoding.
>> Steve
>> aa8af
>>> On Oct 30, 2021, at 10:49 PM, David Christ  wrote:
>>> 
>>> Yes this has been bead to death previously. Jim Brown made a number of 
>>> suggestions in a paper from 2014.  However the market has changed.  Those 
>>> models are all discontinued and those manufacturers' follow ons are much 
>>> more expensive and have features that are not needed for sound card modes.  
>>> Any offerings of these older models seem to be coming from overseas.  The 
>>> $100 and under market seems to be dominated by mystery brand dongles which 
>>> are a gamble.
>>> 
>>> So can any one recommend a tried and true sound card interface for use 
>>> between an K3 (without a sound card) and a MacBook Pro (which has no mike 
>>> or line in jack)?  I would like to hear from people who have actually the 
>>> unit, not just speculation.
>>> 
> 
> 
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[Elecraft] Problem Tuning K3

[Jim Ruff via Elecraft]

I’m running a K3, KPA500 and a KAT500. My antenna is an 80m OCFD.  When I 
operate FT8, the rig tunes perfectly on all bands.  When I was operating SSB in 
the DX contest this weekend, the rig would not tune on any of the SSB 
frequencies or bands.  If I turned off the KPA500 and the KAT500, the K3 would 
tune all bands and frequencies with it’s internal tuner.  Any ideas on what is 
causing this to happen?Thanks,Jim W7JHR


Sent from Yahoo Mail for iPad
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Re: [Elecraft] what soundcard for K3 and Mac

[Joe Subich, W4TV]

What I haven’t quite figured out is how important is this really is
to weak signal digital decoding.


Low noise in a sound card is important to weak signal decoding in two
ways:

1) you want the inherent noise floor in the sound card to be 10 to 15
   dB *LESS* than the minimum - receiver noise + "antenna" - noise.  On
   VHF with a very quiet receiver the receiver noise can be quite low.

2) high noise level in a sound card directly subtracts from the dynamic
   range (ADC clipping - noise floor).  With a high noise floor, strong
   signals either overflow the ADC or the receiver AGC must reduce gain
   with moves the weak signals below the (higher) noise floor.

After testing, I settled on a Sound BlasterX G5 model SB1700 which 

> tested at about -120dB noise level.

-128 dB relative to what?  A quality 16 bit sound card has a theoretical
dynamic range of 97dB - a quality 16 bit card (low noise) will produce
about 90 dB dynamic range in practice.  A 24 bit sound card has 144 dB
theoretical dynamic range but a practical 24 bit sound card will produce
maybe 115 dB dynamic range but to take advantage of that dynamic range
the sound card (any audio preamps and the ADC) need to operate with a
supply voltage greater than the typical 3.3 or 5 V USB supply.  A 24 bit
sound card with a 5 V (USB) supply will be lucky to achieve 100 dB
dynamic range.

73,

   ... Joe, W4TV


On 2021-10-31 10:41 AM, SteveL wrote:

Dave,
This interest caught my eye awhile back:

http://members.chello.at/oe1mww/sound-card-check/ 


I’ve tested several of the inexpensive (<$10) nameless USB sound card dongles 
using his method and saw a wide variety of noise floors - however significantly 
higher than a name brand USB card.  After testing, I settled on a Sound BlasterX 
G5 model SB1700 which tested at about -120dB noise level.  How does this compare?  
My nameless sound dongles noise level tested -70 to -90dB - a big difference.

What I haven’t quite figured out is how important is this really is to weak 
signal digital decoding.

Steve
aa8af


On Oct 30, 2021, at 10:49 PM, David Christ  wrote:

Yes this has been bead to death previously. Jim Brown made a number of 
suggestions in a paper from 2014.  However the market has changed.  Those 
models are all discontinued and those manufacturers' follow ons are much more 
expensive and have features that are not needed for sound card modes.  Any 
offerings of these older models seem to be coming from overseas.  The $100 and 
under market seems to be dominated by mystery brand dongles which are a gamble.

So can any one recommend a tried and true sound card interface for use between 
an K3 (without a sound card) and a MacBook Pro (which has no mike or line in 
jack)?  I would like to hear from people who have actually the unit, not just 
speculation.




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Re: [Elecraft] feeding a half-wave dipole with ladder line

[Fred]

Ahh yes!  "The Illuminator."  As I remember, he even put three bulbs in 
a Vee, each decoupled to make a "Phased Illuminator."  I believe he 
worked all continents on the single bulb.  I'd guess that all of us of a 
certain age have had someone call us as we were tuning up on a light 
bulb.  My HOA-friendly WOOF antenna looks to be in the same class as the 
Illuminator when you just look at it, however it too works.  I think B 
still sells an all-band folded dipole which for years could be seen 
hanging over National Guard Armories.  It has a resistor loading it, 
~200 ohms I think and since most of the Guard's HF comm is fairly local 
to their state, it works great for them.  We seem to have grown a bit 
too precise about antennas these days?


73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

Jim Brown wrote on 10/30/2021 11:44 PM:

On 10/30/2021 4:47 PM, John Harper wrote:

Multiband DXCC is NOT a measure of antenna performance

Au contraire, it's one measure.


Many years ago, N6BT published a piece in QST describing how had 
worked DX on a light bulb. He had carefully decoupled it so that it 
was, indeed, the lightbulb doing the radiating. He included it in his 
very informative self-published "Array of Light." He did the 
experiment to demonstrate that "everything works," but some things 
work better than others.


73, Jim K9YC
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Re: [Elecraft] Parts Swappers

[Dave]

It all boils down to trust...  You either trust your seller, or buyer, 
or you don't.


You take precautions, (take a reasonable number of them, not going 
overboard), and if you get burned you modify how you determine trust, or 
you take your chances again.


TANSTAAFL

There are no guarantees in life, save at some point you will reach your 
expire date, and will have had to pay the Government taxes...


On 10/31/21 4:07 AM, Nate Bargmann wrote:

* On 2021 31 Oct 01:06 -0500, Carl Jón Denbow wrote:

If this was a big problem that would be prudent, but it’s not.  I’ve
never had a problem of this sort in years of online trading, selling
and buying ham gear.  Others on here have said the same thing.  This
is a solution in search of a problem, IMHO.  — 73 de Carl


Nice to know that this is not as wide spread as some ads I've seen would
lead one to believe.


On Oct 30, 2021, at 7:03 PM, eda...@aya.yale.edu wrote:

 From a seller's point of view, would it work to ship the gear with some
unique sort of tape spanning the seams, and saying to the buyers that
anything opened can't be returned?


The tape idea has another side to it, as a buyer I have a right to
inspect my purchase to assure that I received what I paid for.  An
unscrupulous seller could attempt to use this in various ways for their
own gain as well.

At some point there has to be a modicum of trust between the parties.
I've inquired about equipment in the past and sometimes there is just a
vibe that tells me to move on.  I've gotten some grief for doing so.  Oh
well.

73, Nate


73,
Dave,
https://www.nk7z.net

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Re: [Elecraft] what soundcard for K3 and Mac

[SteveL]

Dave,
This interest caught my eye awhile back:

http://members.chello.at/oe1mww/sound-card-check/ 


I’ve tested several of the inexpensive (<$10) nameless USB sound card dongles 
using his method and saw a wide variety of noise floors - however significantly 
higher than a name brand USB card.  After testing, I settled on a Sound 
BlasterX G5 model SB1700 which tested at about -120dB noise level.  How does 
this compare?  My nameless sound dongles noise level tested -70 to -90dB - a 
big difference.  

What I haven’t quite figured out is how important is this really is to weak 
signal digital decoding.  

Steve
aa8af 

> On Oct 30, 2021, at 10:49 PM, David Christ  wrote:
> 
> Yes this has been bead to death previously. Jim Brown made a number of 
> suggestions in a paper from 2014.  However the market has changed.  Those 
> models are all discontinued and those manufacturers' follow ons are much more 
> expensive and have features that are not needed for sound card modes.  Any 
> offerings of these older models seem to be coming from overseas.  The $100 
> and under market seems to be dominated by mystery brand dongles which are a 
> gamble.
> 
> So can any one recommend a tried and true sound card interface for use 
> between an K3 (without a sound card) and a MacBook Pro (which has no mike or 
> line in jack)?  I would like to hear from people who have actually the unit, 
> not just speculation.
> 

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Re: [Elecraft] Parts Swappers

[Nate Bargmann]

* On 2021 31 Oct 01:06 -0500, Carl Jón Denbow wrote:
> If this was a big problem that would be prudent, but it’s not.  I’ve
> never had a problem of this sort in years of online trading, selling
> and buying ham gear.  Others on here have said the same thing.  This
> is a solution in search of a problem, IMHO.  — 73 de Carl

Nice to know that this is not as wide spread as some ads I've seen would
lead one to believe.

> > On Oct 30, 2021, at 7:03 PM, eda...@aya.yale.edu wrote:
> > 
> > From a seller's point of view, would it work to ship the gear with some
> > unique sort of tape spanning the seams, and saying to the buyers that
> > anything opened can't be returned?

The tape idea has another side to it, as a buyer I have a right to
inspect my purchase to assure that I received what I paid for.  An
unscrupulous seller could attempt to use this in various ways for their
own gain as well.

At some point there has to be a modicum of trust between the parties.
I've inquired about equipment in the past and sometimes there is just a
vibe that tells me to move on.  I've gotten some grief for doing so.  Oh
well.

73, Nate

-- 
"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."
Web: https://www.n0nb.us
Projects: https://github.com/N0NB
GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819

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Re: [Elecraft] feeding a half-wave dipole with ladder line

[Jim Brown]

On 10/30/2021 4:47 PM, John Harper wrote:

Multiband DXCC is NOT a measure of antenna performance

Au contraire, it's one measure.


Many years ago, N6BT published a piece in QST describing how had worked 
DX on a light bulb. He had carefully decoupled it so that it was, 
indeed, the lightbulb doing the radiating. He included it in his very 
informative self-published "Array of Light." He did the experiment to 
demonstrate that "everything works," but some things work better than 
others.


73, Jim K9YC
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