Re: [Elecraft] [K3] internal 144MHz xvrtr - no output

[Bill Frantz]

After upgrading my K3 with some of the new boards from the K3S, 
I tested my K144XV module by hitting the local repeater (about 
1.5 miles from my roof mounted antenna). It came back to me so I 
assumed everything was OK.


Then my wife (KI6SLX) acted as net control using the K3. 
Everyone thought she was very scratchy. I hooked up a power/SWR 
meeter to the antenna feed and it showed almost no power output. 
I opened up the radio, reseated the TMP connectors, and the 
power came back to normal.


Moral: Watch those TMP connectors.

73 Bill AE6JV

On 7/24/16 at 9:34 AM, r...@cobi.biz (Ron D'Eau Claire) wrote:


If it's dead in all modes, or especially if it is intermittent, check to be
sure the antenna cable is properly inserted in the TMP connector at the
K144XV module.

---
Bill Frantz|The nice thing about standards| Periwinkle
(408)356-8506  |is there are so many to choose| 16345 
Englewood Ave
www.pwpconsult.com |from.   - Andrew Tanenbaum| Los Gatos, 
CA 95032


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Re: [Elecraft] K3 Transmitting CW in SSB mode

[ROBERT HEATH]

- Original Message -

From: "Phil Hystad"  
To: "Elecraft Reflector Reflector"  
Sent: Monday, July 25, 2016 11:34:05 PM 
Subject: [Elecraft] K3 Transmitting CW in SSB mode 

I have my K3 enabled to allow the sending of CW in SSB mode. However, I am not 
sure how this actually works. Therefore, this question. 

If the K3 VFO is dialed into 3850 KHz (for example) and the mode is set to SSB 
and my sidetone monitor of the CW signal is set to 700 Hz (not sure if this 
matters), what will the other station here if I send something in CW while in 
SSB mode on my K3. In particular: 

1. They are also dialed into the same frequency 3850 KHz, what will they hear: 
a tone of 700 Hz, a tone of some other audio frequency, or no tone at all. My 
only assumption is that they are in SSB mode and dialed to the same frequency 
as I am. 


2. They (the other station) are dialed into the same frequency of 3850 but 
their mode is CW and not SSB while my mode in sending is still SSB. Same 
questions, what will they hear? 

Thanks, 

73, phil, K7PEH 

Hello Phil, 

1. When in the CW mode, the actual sending frequency is the frequency seen on 
the transceiver display (assuming zero XIT). As far as I know this applies to 
all modern transceivers whether set for LSB or USB CW mode. The receive 
sidetone offset has nothing to do with this. 
2. If you wish a station listening on 3850 kHz LSB to hear a CW signal to yield 
an audio output of 700 Hz, you must transmit a CW signal at a frequency 700 Hz 
below 3850 kHz, namely 3849.3 kHz. (If the station were listening on 3850 kHz 
USB, the CW signal signal would need to be at a frequency of 3850.7 kHz.) 

I think the above information covers all the bases. Your question 2 doesn't 
mean anything to me because I don't believe any modern transceiver will send CW 
while set for either SSB mode. 

An interesting and worthwhile possibility exists by making use of the SPLIT 
capability. To use the frequency specified above, one would listen on 3850 kHz 
in LSB mode but transmit in CW mode on 3849.3 kHz in CW mode. With this scheme 
one can quickly switch back to transmitting in LSB mode by cancelling SPLIT 
mode. I've done this sort of thing many times. I believe this stunt can be done 
with any modern transceiver. It can be done with the TenTec Orion but the setup 
is more complicated and TenTec doesn't tell you in their manual how to do it. 

73, Bob, VA3BZ, W8BZ 


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Re: [Elecraft] K3 Transmitting CW in SSB mode

[Richard Fjeld]

Phil,
I use that feature on my K3, and I have done it many times.
To answer #1,  they say they hear me perfectly when we are on the same 
SSB frequency. It has been handy several times.

To answer #2, I think they will be off by their offset frequency.

Dick, n0ce



On 7/25/2016 10:34 PM, Phil Hystad wrote:

I have my K3 enabled to allow the sending of CW in SSB mode.  However, I am not 
sure how this actually works.  Therefore, this question.

If the K3 VFO is dialed into 3850 KHz (for example) and the mode is set to SSB 
and my sidetone monitor of the CW signal is set to 700 Hz (not sure if this 
matters), what will the other station here if I send something in CW while in 
SSB mode on my K3.  In particular:

1.  They are also dialed into the same frequency 3850 KHz, what will they hear: 
a tone of 700 Hz, a tone of some other audio frequency, or no tone at all.  My 
only assumption is that they are in SSB mode and dialed to the same frequency 
as I am.


2.  They (the other station) are dialed into the same frequency of 3850 but 
their mode is CW and not SSB while my mode in sending is still SSB.  Same 
questions, what will they hear?

Thanks,

73, phil, K7PEH




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Re: [Elecraft] QSLs

[Jim Brown]

LOTW runs on GMT (UTC). If you keep your log in UTC, all will be 
confirmed. Except, of course, for a few stations that don't get it 
right. But that is rare.


73, Jim K9YC

On Mon,7/25/2016 6:54 PM, Jorge Diez CX6VM wrote:

But LOTW don't know about propagation and confirm any match, also when one side 
of the QSO was during his noon time



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[Elecraft] K3 Transmitting CW in SSB mode

[Phil Hystad]

I have my K3 enabled to allow the sending of CW in SSB mode.  However, I am not 
sure how this actually works.  Therefore, this question.

If the K3 VFO is dialed into 3850 KHz (for example) and the mode is set to SSB 
and my sidetone monitor of the CW signal is set to 700 Hz (not sure if this 
matters), what will the other station here if I send something in CW while in 
SSB mode on my K3.  In particular:

1.  They are also dialed into the same frequency 3850 KHz, what will they hear: 
a tone of 700 Hz, a tone of some other audio frequency, or no tone at all.  My 
only assumption is that they are in SSB mode and dialed to the same frequency 
as I am.


2.  They (the other station) are dialed into the same frequency of 3850 but 
their mode is CW and not SSB while my mode in sending is still SSB.  Same 
questions, what will they hear?

Thanks,

73, phil, K7PEH


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Re: [Elecraft] QSLs

[Ron D'Eau Claire]

Way back in the 50's and 60's we knew that some operators were "earning"
their ARRL CW speed proficiency certificates by recording W1AW on
reel-to-reel tape recorders and cutting the speed in half. But that was
them. I know my certificates were a record of my real ability. That's all
that mattered to me.

73, Ron AC7AC  

-Original Message-
>
> "Sorry, but some folks aren't ethical. :) " 

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Re: [Elecraft] QSLs

[Jorge Diez CX6VM]

That's sounds very good

But LOTW don't know about propagation and confirm any match, also when one side 
of the QSO was during his noon time

73,
Jorge
CX6VM/CW5W

Enviado desde mi iPhone

> El 25 jul. 2016, a las 18:56, Jim Brown  escribió:
> 
>> On Mon,7/25/2016 2:42 PM, Wes Stewart wrote:
>> It's almost as bad in the states if you have 160-meter cards.  For the life 
>> of me I can't understand why any card checker can't do 160 QSLs.
> 
> The requirement is that a card checker must have achieved 160M DXCC 
> him/herself before they can check 160M cards. The reason is pretty simple -- 
> some operators were cheating by doctoring cards -- for example, by changing 
> 18.1 MHz to 1.8 MHz. The logic is that a card checker should know enough 
> about 160M propagation (and perhaps even activity) to know whether a QSL 
> might be invalid because it occurs at a time when the band could not possibly 
> have been open between the two stations (for example, no common darkness over 
> a realistic path, taking greyline into account).
> 
> Sorry, but some folks aren't ethical. :)
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] QSLs

[Jim Brown]

On Mon,7/25/2016 6:12 PM, Wes Stewart wrote:


"Sorry, but some folks aren't ethical. :) " We're supposed to avoid 
politics here. 


Why is that political? Are you unaware of the widespread cheating in 
some contests?


73, Jim

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Re: [Elecraft] QSLs

[Wes Stewart]

I know that "logic" but doctored cards are nothing new and are always reason for 
rejection.  So all cards should be looked at closely by every card checker.


Besides, with the plethora of stations for hire, who says a guy in sunny CA 
can't work Mt Athos on 160 using a station in dark ME.


"Sorry, but some folks aren't ethical. :) "   We're supposed to avoid politics 
here.

On 7/25/2016 2:56 PM, Jim Brown wrote:

On Mon,7/25/2016 2:42 PM, Wes Stewart wrote:
It's almost as bad in the states if you have 160-meter cards.  For the life 
of me I can't understand why any card checker can't do 160 QSLs. 


The requirement is that a card checker must have achieved 160M DXCC 
him/herself before they can check 160M cards. The reason is pretty simple -- 
some operators were cheating by doctoring cards -- for example, by changing 
18.1 MHz to 1.8 MHz. The logic is that a card checker should know enough about 
160M propagation (and perhaps even activity) to know whether a QSL might be 
invalid because it occurs at a time when the band could not possibly have been 
open between the two stations (for example, no common darkness over a 
realistic path, taking greyline into account).


Sorry, but some folks aren't ethical. :)

73, Jim K9YC 


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Re: [Elecraft] QSLs

[Bill]

Putting the costs into perspective by date - it was not cheap back in 
the day. I have many many QSL cards I have received over the years and 
enjoy going through them. Some are simple, some are ornate, and I even 
have a few that were hand made. The gist of this? You cannot view 
electronic QSL cards - they are only there to serve the purpose of 
proving a contact to attain some form of status.


Electronic QSLs fit right in with texting and other impersonal 
activities of the digital age.


I no longer DX, except to rag chew - so I really don't care if I get a 
QSL or not. But, I sure don't mind sending them and most certainly enjoy 
receiving them. Anymore, I also only do direct.


Bill W2BLC K-Line
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Re: [Elecraft] [K3S] Test Procedure

[Kevin]

I think Don should write that up and post it on his site.


On 7/24/2016 8:37 PM, Don Wilhelm wrote:

Mark,

I think you are correct, no "standard" test procedure is possible 
because it would not account for all installed options, filter 
assignments, and other configurable aspects of the K3/K3S.


I would however suggest that one could use a procedure similar to what 
I use for a K2.
It is best if you have a dummy load and can observe the TX waveforms 
on an oscilloscope connected across that dummy load with a 10X probe.
How well you can do the tests will depend on the equipment you have 
available.
Testing into an antenna can produce ambiguous results - use a dummy 
load even if you have to borrow one.  An external wattmeter with 
trusted calibration is also useful.


Proposed procedure ---
1) Go through all the calibration items listed in the manual.
2) Check the status of each option installed and do a functional check 
to assure that each of those options is working.
3) Check the computer connection capability - does it connect with K3 
Uility?

4) Check the filter assignments using K3 Utility.
5) Check the CW output waveform on the 'scope.
6) Check the SSB output waveform.  Does it change with Mic Gain and 
Compression.

7) Check data mode operation if you had been set up for that capability.
8) Check FM capability if your K3 is equipped with the 13kHz filter.
9) Check AM capability if your K3 has the 6kHz or 13kHz filter.
10) if you have the KAT3, check that it tunes properly into a dummy 
load on all bands.
10a) if you have 2 50 ohm dummy loads, connect them in parallel and 
assure that the KAT3 will tune into the resultant 25 ohm dummy load.
11) Check receive function on all bands.  A signal generator like the 
XG3 is a big help with this evaluation.  Check at low signal levels.

12) Check the KRX3 receive in the same manner as the main reciever.

Note, you can best observe the RX characteristics using an audio 
spectrum analyzer (Spectrogram or Spectrum Lab or others) running on 
your computer - feed the headphone output (or rear panel phones or 
speaker) to the soundcard input.  The main RX is the left channel and 
the KRX3 is the right channel.
If you do not have an audio spectrum analyzer, you can download a good 
copy of Spectrogram from my website www.w3fpr.com - look near the 
bottom of the opening page for links to a copy internal to my website 
(it has been scrubbed by several anti-virus programs and has come up 
clean - contrary to several copies of Spectrogram found 'in the wild' 
on the internet).


73,
Don W3FPR



--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441


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Re: [Elecraft] KIO3 boards for K3 wanted

[Matthew Lawson]

Jan, sorry to hear about the surge. Is the local utility working with on
replacing gear? This has happened in my family and the utility covered the
cost to replace the items damaged.

Good luck and 73!

*Matthew Lawson*
*KC7EQO*
*442.100 + 100 Hz PL Blyn Mt Repeater*


*http://www.qrz.com/db/KC7EQO/R *


On Mon, Jul 25, 2016 at 4:01 PM, Jan Ditzian  wrote:

> I had a power surge in my home (along with everyone else in the zip code),
> and it looks like my KIO3 boards took a hit via the computer.  I tried a
> new serial-USB converter, and that does not fix the problem.  Elecraft
> suggests that the next step be a new set of I/O boards, but, of course,
> they no longer make them for the K3, and I will have to spend $400 for the
> K3S version, which, while an improvement, is not one that I need.  If
> someone has upgraded his/her K3 with the new boards, I would like to
> discuss purchase of the old ones, if they are fully working.
>
> Thank you,
>
> Jan, KX2A
>
>
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Re: [Elecraft] QSLs

[EricJ]

Hah! You should be in So Cal. EVERYBODY wants my card. Ok, nobody, but 
I'll courteously reply in kind if it ever happens.


Eric KE6US

On 7/25/2016 3:18 PM, Ron D'Eau Claire wrote:

As always, I respond to a request for a QSL in whatever form the other
station wants. Being located in Oregon I do not get a lot of requests, so
it's not a significant burden.

73, Ron AC7AC



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Re: [Elecraft] QSLs

[EricJ]

Hah! You should be in So Cal. EVERYBODY wants my card. Ok, nobody, but 
I'll courteously reply in kind if it ever happens.


Eric KE6US

On 7/25/2016 3:18 PM, Ron D'Eau Claire wrote:

When I was first licensed in the 1950's, the cost of printing QSLs was a
significant expense, as was the cost of International Reply Coupons if I
didn't want to wait for the buro. I could buy a gallon of gas for 25 cents
and a decent meal for $1.00. And, while it was far cheaper even in adjusted
dollars than today, the cost of College was very significant.

As always, I respond to a request for a QSL in whatever form the other
station wants. Being located in Oregon I do not get a lot of requests, so
it's not a significant burden.

73, Ron AC7AC

  


-Original Message-
Sent via the Samsung Galaxy S6 edge+, an AT 4G LTE smartphone
 Original message From: Jim Brown
 Date: 7/25/16  1:49 PM  (GMT-06:00) To:
elecraft@mailman.qth.net Subject: [Elecraft] QSLs On Mon,7/25/2016 11:34 AM,
stan levandowski wrote:

On my QRZ page it says "No LoTW, no eQSL and no Buro."

That may be your preference, but it causes everyone who wants a
confirmation from you to spend money with the postal system. When we
were kids, it cost a penny or two to send a QSL. Now, including the cost
of printing a card, it costs someone who wants your card more than $1
round trip (.49 each way) in the US, more than $2 between US and Canada,
average $3.50 to/from other countries.

LOTW and eQSL are FREE and easy to use if you're using almost any of the
popular logging software. Putting our logs on LOTW is the considerate
thing to do. It's the RIGHT thing to do. It's the modern equivalent of
what we said in the '50s -- "the last courtesy of a QSO is a QSL." Now,
the last courtesy of a QSO is an upload to LOTW.

73, Jim K9YC

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[Elecraft] KIO3 boards for K3 wanted

[Jan Ditzian]

I had a power surge in my home (along with everyone else in the zip 
code), and it looks like my KIO3 boards took a hit via the computer.  I 
tried a new serial-USB converter, and that does not fix the problem.  
Elecraft suggests that the next step be a new set of I/O boards, but, of 
course, they no longer make them for the K3, and I will have to spend 
$400 for the K3S version, which, while an improvement, is not one that I 
need.  If someone has upgraded his/her K3 with the new boards, I would 
like to discuss purchase of the old ones, if they are fully working.


Thank you,

Jan, KX2A


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Re: [Elecraft] [KX3] Field antenna tip

[Wayne Burdick]

On Jul 25, 2016, at 1:17 PM, Charles Cupp  wrote:

> Which binding post Wayne?does it make any difference?

No. It's entirely ad-hoc/empirical. I wound up maybe 15-20 turns. Definitely 
not critical, but not guaranteed, either :)

Wayne
N6KR


> Charly XF1/W6CUP - on the air in Cabo San Lucas 
> 
> Sent from my iPad Mini 64gig---(Life is too short to Fly Coach)
> 
> On Jul 25, 2016, at 12:45, Wayne Burdick n...@elecraft.com [KX3] 
>  wrote:
> 
>> Hi all,
>> 
>> This weekend I was using the KX2 with a random length of wire tossed in a 
>> tree and another random length laid on the ground. Normally the ATU (KXAT2) 
>> can handle just about anything, but this particular combination of lengths 
>> wasn't working well on 40 m; SWR was still around 3:1 after matching. It 
>> probably looked like an end-fed half wave to the tuner.
>> 
>> The wires were connected to a BNC-to-binding post adapter, suggesting a 
>> simple workaround. Rather than adjust the length of the wire by cutting or 
>> splicing, I simply reeled in a few feet of it and wrapped it around one of 
>> the binding posts, forming an inductor of perhaps several uH. 
>> 
>> The ATU was then able to match the antenna on 40 m, as well as the other 
>> bands (up through 10 m). 
>> 
>> 73,
>> Wayne
>> N6KR
>> 
>> __._,_.___
>> Posted by: Wayne Burdick 
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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[Don Wilhelm]

Brian,

There should have been an increase in SWR between L1 and L2 on 28MHz, 
but the results on 50MHz indicate that it may be OK.


I think the increase in SWR between C1 and C2 is normal, but why does 
the SWR drop when C3 is selected?  That to me indicates a problem with 
C3 - and possibly C4 for the same reason.


The problem can either be the capacitor or its associated relay. The 
relays clicking indicate that the coil is OK, but that says little about 
the contacts.


Take another look at the C1 through C5 sequence on 28MHz.  The SWR 
should increase with each successive capacitor selected - simply because 
the capacitor values are larger.
From my experience with the KAT2 and KAT100, the SWR increase between 
C1 and C2 is normal, but the real question is "Why does it drop 
significantly with C3 and C4?"

The C5 SWR of 5.5 is more along the lines of what I would expect.

So I would suspect C3 and C4 -- or more likely their relays above all else.

Yes, those could be the reason you cannot achieve a good match to low 
impedance loads on 80 and 160 - it just may be that those values are 
needed and are not available.


73,
Don W3FPR


On 7/25/2016 5:23 PM, brian wrote:

Thanks Don,
Very instructive.
All relays click.
Tabulated below are the L/C test results.
The only anomaly appears to be with C2.  It seems to act as a 100 pf 
rather than the 22 pf it is supposed to be.


SWR's 50 ohm dummy load attached to antenna port of K3
-
L test
Bypass 1.0 50.1 MHz
L1 1.1
L2 1.8
Bypass 1.0 28.1 MHz
L1 1.0
L2 1.0
L3 1.5
L4 3.3
L5 14
Bypass 1.0 14.10 MHz
L5 3.9
L6 9.8
Bypass 1.0 7.05 MHz
L6 4.2
L7 8.9
Bypass 1.81 MHz
L7 2.3
L8 4.6
-
28.1 MHz Bypass = 1.021.0 MHz Bypass =1.0
C1 1.4C1  1.3
C2 2.5C2  2.1
C3 1.5C3  1.4
C4 1.7C4  1.5
C5 5.5
14.1 MHz Bypass =1.0
C5 2.6
C6 5.2
7.05 MHz Bypass =1.0
C6=1.7
C7=3.9
C8=10.9
--
Not sure if the C2 anomaly is relevant to 160/80 M

73 de Brian/K3KO

On 7/25/2016 18:11 PM, Don Wilhelm wrote:

Brian,

You might try going into the KAT3 menu and go through the L1-L8 and
C1-C8 settings to hear the relays click with each selection.

If all the relays are working, you should be able to do a check on the
health of the inductors and capacitors using a method similar to that
shown for the KAT100 in the right column of page 35 - manually select
the inductors starting with L1 and see what the SWR is on a high band.
With each other inductor, the SWR should increase.  Change to a lower
band if the SWR gets too high to indicate (highest is 9.9).  Do the same
for the capacitors.

I have not tried this technique with the KAT3 (but it should work) - I
have used it with the KAT100 and the KAT2.

73,
Don W3FPR



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Re: [Elecraft] QSLs

[Ron D'Eau Claire]

When I was first licensed in the 1950's, the cost of printing QSLs was a
significant expense, as was the cost of International Reply Coupons if I
didn't want to wait for the buro. I could buy a gallon of gas for 25 cents
and a decent meal for $1.00. And, while it was far cheaper even in adjusted
dollars than today, the cost of College was very significant.

As always, I respond to a request for a QSL in whatever form the other
station wants. Being located in Oregon I do not get a lot of requests, so
it's not a significant burden.

73, Ron AC7AC

 

-Original Message-
Sent via the Samsung Galaxy S6 edge+, an AT 4G LTE smartphone
 Original message From: Jim Brown
 Date: 7/25/16  1:49 PM  (GMT-06:00) To:
elecraft@mailman.qth.net Subject: [Elecraft] QSLs On Mon,7/25/2016 11:34 AM,
stan levandowski wrote:
> On my QRZ page it says "No LoTW, no eQSL and no Buro." 

That may be your preference, but it causes everyone who wants a 
confirmation from you to spend money with the postal system. When we 
were kids, it cost a penny or two to send a QSL. Now, including the cost 
of printing a card, it costs someone who wants your card more than $1 
round trip (.49 each way) in the US, more than $2 between US and Canada, 
average $3.50 to/from other countries.

LOTW and eQSL are FREE and easy to use if you're using almost any of the 
popular logging software. Putting our logs on LOTW is the considerate 
thing to do. It's the RIGHT thing to do. It's the modern equivalent of 
what we said in the '50s -- "the last courtesy of a QSO is a QSL." Now, 
the last courtesy of a QSO is an upload to LOTW.

73, Jim K9YC

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Re: [Elecraft] KX3 Antenna Tuner Settings

[John Oppenheimer]

Here is Wayne's email referencing the KX3 ATU L and C values:

On 08/02/2012 12:29 PM, Wayne Burdick wrote:
> We're still working on getting the schematics formatted for
> publication. Meanwhile, here are the approximate L and C values:
>
>   L:   8, 4, 2, 1, 0.5, 0.25, 0.12, and 0.06 uH
>
>   C:   1360, 680, 330, 164, 82, 39, 18, 10 pF


John KN5L

On 07/25/2016 04:36 PM, John Oppenheimer wrote:
> The command is:
> AK (ATU Network Values; KX3/KX2 only, GET only)
> 
> Programmer's Reference Page 3.
> 
> The KX3 L and C values can be found from the schematic. Wayne sent an
> email some years ago with the list of L can C values.
> 
> I don't believe that the KX2 L and C values have been published.
> 
> John KN5L
> 
> On 07/25/2016 04:12 PM, thelastdb wrote:
>> Hi Bob,
>> Which tab is that under?
>> Myron WVØHPrinted on Recycled Data  Original message From: 
>> Bob N3MNT  Date: 7/25/2016  3:05 PM  (GMT-07:00) To: 
>> elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 Antenna Tuner Settings 
>> Connect the KX3 utility it will show you the exact values the tuner has
>> chosen to match the antenna.
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[Elecraft] KX2 Ser.567 - ERR ATC d=001

[Converse, Robert]

I apologize that my earlier inquiry did not include a subject.  I would really 
appreciate any guidance on re-installing the KXAT2board.

Bob, WO3E


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Re: [Elecraft] QSLs

[Jim Brown]

On Mon,7/25/2016 2:42 PM, Wes Stewart wrote:
It's almost as bad in the states if you have 160-meter cards.  For the 
life of me I can't understand why any card checker can't do 160 QSLs. 


The requirement is that a card checker must have achieved 160M DXCC 
him/herself before they can check 160M cards. The reason is pretty 
simple -- some operators were cheating by doctoring cards -- for 
example, by changing 18.1 MHz to 1.8 MHz. The logic is that a card 
checker should know enough about 160M propagation (and perhaps even 
activity) to know whether a QSL might be invalid because it occurs at a 
time when the band could not possibly have been open between the two 
stations (for example, no common darkness over a realistic path, taking 
greyline into account).


Sorry, but some folks aren't ethical. :)

73, Jim K9YC

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Re: [Elecraft] QSLs

[Walter Underwood]

Hmm, the 160 meter QSLs might be complicated by the varying rules for different 
parts of the US that were in force during the LORAN era.

Any old QSLs should be checked for those rules, but those should be getting 
pretty rare by now.

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

> On Jul 25, 2016, at 2:42 PM, Wes Stewart  wrote:
> 
> It's almost as bad in the states if you have 160-meter cards.  For the life 
> of me I can't understand why any card checker can't do 160 QSLs.
> 
> I still send a receive paper cards...recently bought 1000 of them, but LoTW 
> is great.
> 
> Wes N7WS
> 
> On 7/25/2016 1:07 PM, Vic Rosenthal 4X6GP wrote:
>> I couldn't agree with Jim more!
>> 
>> I love LOTW and wish everyone would use it.
>> 
>> It's not just the cost of postage for the cards themselves. I am trying to 
>> increase my DXCC total and submitting confirmations by LOTW is so much 
>> easier than getting cards checked by the /one/ guy in the country who can do 
>> it, or mailing them to the ARRL in the USA and hoping that our troubled 
>> postal service will get them there and back.
>> 
>> 73,
>> Vic, 4X6GP
>> Rehovot, Israel
>> Formerly K2VCO
>> http://www.qsl.net/k2vco/
> 
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[Elecraft] (no subject)

[Converse, Robert]

In my KX2 SN 567,  I removed the BPF and KXAT2 boards in order to install the 
Gem Products replacement side plates.  I had no trouble installing these on my 
KX3 and really like them.  One article by KE4RG states that this procedure for 
the KX2 is "not for the timid," and I would now concur.  After MUCH difficulty, 
I got both boards reinstalled and closed up the unit.  However, upon power-up, 
I received an error message "ERR ATC d=001."

The manual entry for this error message suggests removing and re-installing the 
KXAT2 board, making sure the 8-pin connector is properly mated.  However, the 
ol’ hands and eyes must not be what they used to be (if they ever were), and it 
took me over an hour to get it plugged in the first time.  It’s extremely 
difficult to see the KXAT2 board pins and determine if they are properly lined 
up, while maneuvering the KXAT2 board past the BPF board and antenna connector.

Before I make another attempt, I thought I would check if anyone has any hints 
to increase my chances of success for this procedure.

Thanks.
Bob, WO3E


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Re: [Elecraft] Field antenna tip

[n9tf]

Here ya go Wayne, a 160m loading coil!   
http://www.slickpic.com/users/GeneGabry/albums/N9TFHamStationPhotos/?wallpaper#2743010
 
  
This was from my one time 160m inverted "U". No matter how many times I tried 
shortening and lengthening the end, 2:1 was the best VSWR I could achieve. 
Until I added 21 turns around a "full" tube of caulk. Must have been the 
dielectric constant of the caulk material ;) 
  
73 Gene, N9TF 

- Original Message -

From: "Wayne Burdick"  
To: "elecraft"  
Cc: k...@yahoogroups.com 
Sent: Monday, July 25, 2016 2:45:53 PM 
Subject: [Elecraft] Field antenna tip 

Hi all, 

This weekend I was using the KX2 with a random length of wire tossed in a tree 
and another random length laid on the ground. Normally the ATU (KXAT2) can 
handle just about anything, but this particular combination of lengths wasn't 
working well on 40 m; SWR was still around 3:1 after matching. It probably 
looked like an end-fed half wave to the tuner. 

The wires were connected to a BNC-to-binding post adapter, suggesting a simple 
workaround. Rather than adjust the length of the wire by cutting or splicing, I 
simply reeled in a few feet of it and wrapped it around one of the binding 
posts, forming an inductor of perhaps several uH. 

The ATU was then able to match the antenna on 40 m, as well as the other bands 
(up through 10 m). 

73, 
Wayne 
N6KR 

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Re: [Elecraft] QSLs

[Wes Stewart]

It's almost as bad in the states if you have 160-meter cards.  For the life of 
me I can't understand why any card checker can't do 160 QSLs.


I still send a receive paper cards...recently bought 1000 of them, but LoTW is 
great.


Wes N7WS

On 7/25/2016 1:07 PM, Vic Rosenthal 4X6GP wrote:

I couldn't agree with Jim more!

I love LOTW and wish everyone would use it.

It's not just the cost of postage for the cards themselves. I am trying to 
increase my DXCC total and submitting confirmations by LOTW is so much easier 
than getting cards checked by the /one/ guy in the country who can do it, or 
mailing them to the ARRL in the USA and hoping that our troubled postal 
service will get them there and back.


73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/


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Re: [Elecraft] QSLs

[Bill Rowlett]

If all you want is a contact confirmation in the ARRL data base to be used for 
an award from ARRL, than by all means use LOTW.

LOTW is not “the last courtesy of a QSO is a QSL.” A QSL which can be held in 
you hand, can bring back a memory about the QSO, that is the last courtesy of 
the QSO, not some data in a data bank somewhere.

As for me, all CARDS go by the buro, state side manager with SASE, or direct 
with SASE. 

Back in my hole now

Bill  KC4ATU


> On Jul 25, 2016, at 4:07 PM, Vic Rosenthal 4X6GP  wrote:
> 
> I couldn't agree with Jim more!
> 
> I love LOTW and wish everyone would use it.
> 
> It's not just the cost of postage for the cards themselves. I am trying to 
> increase my DXCC total and submitting confirmations by LOTW is so much easier 
> than getting cards checked by the /one/ guy in the country who can do it, or 
> mailing them to the ARRL in the USA and hoping that our troubled postal 
> service will get them there and back.
> 
> 73,
> Vic, 4X6GP
> Rehovot, Israel
> Formerly K2VCO
> http://www.qsl.net/k2vco/
> 
> On 25 Jul 2016 21:49, Jim Brown wrote:
>> On Mon,7/25/2016 11:34 AM, stan levandowski wrote:
>>> On my QRZ page it says "No LoTW, no eQSL and no Buro."
>> 
>> That may be your preference, but it causes everyone who wants a
>> confirmation from you to spend money with the postal system. When we
>> were kids, it cost a penny or two to send a QSL. Now, including the cost
>> of printing a card, it costs someone who wants your card more than $1
>> round trip (.49 each way) in the US, more than $2 between US and Canada,
>> average $3.50 to/from other countries.
>> 
>> LOTW and eQSL are FREE and easy to use if you're using almost any of the
>> popular logging software. Putting our logs on LOTW is the considerate
>> thing to do. It's the RIGHT thing to do. It's the modern equivalent of
>> what we said in the '50s -- "the last courtesy of a QSO is a QSL." Now,
>> the last courtesy of a QSO is an upload to LOTW.
>> 
>> 73, Jim K9YC
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Re: [Elecraft] QSLs

[mfsj]

Well said Jim.
73,Fred/N0AZZ


Sent via the Samsung Galaxy S6 edge+, an AT 4G LTE smartphone
 Original message From: Jim Brown  
Date: 7/25/16  1:49 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: 
[Elecraft] QSLs 
On Mon,7/25/2016 11:34 AM, stan levandowski wrote:
> On my QRZ page it says "No LoTW, no eQSL and no Buro." 

That may be your preference, but it causes everyone who wants a 
confirmation from you to spend money with the postal system. When we 
were kids, it cost a penny or two to send a QSL. Now, including the cost 
of printing a card, it costs someone who wants your card more than $1 
round trip (.49 each way) in the US, more than $2 between US and Canada, 
average $3.50 to/from other countries.

LOTW and eQSL are FREE and easy to use if you're using almost any of the 
popular logging software. Putting our logs on LOTW is the considerate 
thing to do. It's the RIGHT thing to do. It's the modern equivalent of 
what we said in the '50s -- "the last courtesy of a QSO is a QSL." Now, 
the last courtesy of a QSO is an upload to LOTW.

73, Jim K9YC

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Re: [Elecraft] KX2 Feature request OFS / DISPlay

[Warren_vk3byd]

Hi Doug,
Yes you are correct the RATE button will change the tuning rate of the VFO A
knob, and the OFS mode will use the VFO B Knob to change the frequency of
VFO A at the VFO-CRS rate.

Whilst it does duplicate features it also allows the MAIN knob to be left at
a slow rate and OFS used for quick tuning. So no need to button press RATE
for quick QSY's just use the OFS mode.
This configuration I find to be natural and makes sense, less button pushing
just to two knobs to deal with.

Equally the DISPlay Mode is the great I generally leave it on Voltage or
Clock, but I if set the radio to use the OFS function the Display of Voltage
etc. disappears and is replaced by Frequency of VFO B

When using the Decode Text function the VFO B display is replaced by Decoded
(or Transmitted) Text, however the OFS still operates as a course Tune for
VFO A.
It was the option to have this functionality I was asking to be added as a
new feature, the ability to have Both the Course Tuning of VFO A via OFS and
the VFO B section of the Display being able to Display Voltage, or Clock,
etc, at the same time.

73,
Warren vk3byd


+++
Warren-
I believe that if you use the"rate" button to the left of the main tuning
knob, on the bottom row that it does this function.  At least, that was what
I was doing before I realized the OFS knob does the same thing.   I
still have not read the entire manual, nor do I understand all of the
functions, but at least on my KX2, that is what happens.  And when I learned
about the OFS knob (the cheat sheet floating around the email lists, is
great)  I wondered about the duplication of the feature.Both values
change the amount I place in the menu for VFO CRS.

Doug


+++
Using the OFS mode for Course tuning and the Main VFO knob for Fine tuning
is great but this is at the expense of the DISPlay function.

It would be great to leave the VFO B display set as DISPlay but still have
the option to Course tune via the VFO B Knob, rather than changing the
tuning rate of the Main VFO knob between course and fine when DISPlay is on.
This would be similar to how the TEXT DECODE mode works, and would allow the
operator to leave the DISPlay on Voltage, Clock or whatever they wanted and
still have course tuning.

Implementation could be via a new option in the Menu setup, 
VFO B display [VFO B or DISP] when in OFS Mode.
Or maybe When OFS On, Display [VFO B, Voltage, Time, Ah etc..]

73,
Warren vk3byd #479



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Re: [Elecraft] QSLs

[Wes Stewart]

Agreed.

On 7/25/2016 11:49 AM, Jim Brown wrote:

On Mon,7/25/2016 11:34 AM, stan levandowski wrote:
On my QRZ page it says "No LoTW, no eQSL and no Buro." 


That may be your preference, but it causes everyone who wants a confirmation 
from you to spend money with the postal system. When we were kids, it cost a 
penny or two to send a QSL. Now, including the cost of printing a card, it 
costs someone who wants your card more than $1 round trip (.49 each way) in 
the US, more than $2 between US and Canada, average $3.50 to/from other 
countries.


LOTW and eQSL are FREE and easy to use if you're using almost any of the 
popular logging software. Putting our logs on LOTW is the considerate thing to 
do. It's the RIGHT thing to do. It's the modern equivalent of what we said in 
the '50s -- "the last courtesy of a QSO is a QSL." Now, the last courtesy of a 
QSO is an upload to LOTW.


73, Jim K9YC


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Re: [Elecraft] KX3 Antenna Tuner Settings

[John Oppenheimer]

The command is:
AK (ATU Network Values; KX3/KX2 only, GET only)

Programmer's Reference Page 3.

The KX3 L and C values can be found from the schematic. Wayne sent an
email some years ago with the list of L can C values.

I don't believe that the KX2 L and C values have been published.

John KN5L

On 07/25/2016 04:12 PM, thelastdb wrote:
> Hi Bob,
> Which tab is that under?
> Myron WVØHPrinted on Recycled Data  Original message From: 
> Bob N3MNT  Date: 7/25/2016  3:05 PM  (GMT-07:00) To: 
> elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 Antenna Tuner Settings 
> Connect the KX3 utility it will show you the exact values the tuner has
> chosen to match the antenna.
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Re: [Elecraft] Field antenna tip

[Barry LaZar]

Wayne,
What a novel solution! That's one that would never have occurred to 
me! Glad it worked!


73,
Barry
K3NDM

-- Original Message --
From: "Wayne Burdick" 
To: "Elecraft Reflector" 
Cc: "k...@yahoogroups.com" 
Sent: 7/25/2016 3:45:53 PM
Subject: [Elecraft] Field antenna tip


Hi all,

This weekend I was using the KX2 with a random length of wire tossed in 
a tree and another random length laid on the ground. Normally the ATU 
(KXAT2) can handle just about anything, but this particular combination 
of lengths wasn't working well on 40 m; SWR was still around 3:1 after 
matching. It probably looked like an end-fed half wave to the tuner.


The wires were connected to a BNC-to-binding post adapter, suggesting a 
simple workaround. Rather than adjust the length of the wire by cutting 
or splicing, I simply reeled in a few feet of it and wrapped it around 
one of the binding posts, forming an inductor of perhaps several uH.


The ATU was then able to match the antenna on 40 m, as well as the 
other bands (up through 10 m).


73,
Wayne
N6KR

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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[brian]

Thanks Don,
Very instructive.
All relays click.
Tabulated below are the L/C test results.
The only anomaly appears to be with C2.  It seems to act as a 100 pf 
rather than the 22 pf it is supposed to be.


SWR's 50 ohm dummy load attached to antenna port of K3
-
L test
Bypass 1.0 50.1 MHz
L1 1.1
L2 1.8
Bypass 1.0 28.1 MHz
L1 1.0
L2 1.0
L3 1.5
L4 3.3
L5 14
Bypass 1.0 14.10 MHz
L5 3.9
L6 9.8
Bypass 1.0 7.05 MHz
L6 4.2
L7 8.9
Bypass 1.81 MHz
L7 2.3
L8 4.6
-
28.1 MHz Bypass = 1.021.0 MHz Bypass =1.0
C1 1.4C1  1.3
C2 2.5C2  2.1
C3 1.5C3  1.4
C4 1.7C4  1.5
C5 5.5
14.1 MHz Bypass =1.0
C5 2.6
C6 5.2
7.05 MHz Bypass =1.0
C6=1.7
C7=3.9
C8=10.9
--
Not sure if the C2 anomaly is relevant to 160/80 M

73 de Brian/K3KO

On 7/25/2016 18:11 PM, Don Wilhelm wrote:

Brian,

You might try going into the KAT3 menu and go through the L1-L8 and
C1-C8 settings to hear the relays click with each selection.

If all the relays are working, you should be able to do a check on the
health of the inductors and capacitors using a method similar to that
shown for the KAT100 in the right column of page 35 - manually select
the inductors starting with L1 and see what the SWR is on a high band.
With each other inductor, the SWR should increase.  Change to a lower
band if the SWR gets too high to indicate (highest is 9.9).  Do the same
for the capacitors.

I have not tried this technique with the KAT3 (but it should work) - I
have used it with the KAT100 and the KAT2.

73,
Don W3FPR

On 7/25/2016 9:30 AM, brian wrote:

Hi Don,

Further insight needed.

John and I have looked into the 80M tuner strangeness problem further.
We both have qualitatively seen the same thing.  It is related to
trying to tune Z's that are on the order of 25-30 ohms on 160M/80M.




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Re: [Elecraft] KX3 Antenna Tuner Settings

[thelastdb]

Hi Bob,
Which tab is that under?
Myron WVØHPrinted on Recycled Data  Original message From: Bob 
N3MNT  Date: 7/25/2016  3:05 PM  (GMT-07:00) To: 
elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 Antenna Tuner Settings 
Connect the KX3 utility it will show you the exact values the tuner has
chosen to match the antenna.



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KX3-Antenna-Tuner-Settings-tp7620648p7620664.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] KX3 Antenna Tuner Settings

[Bob N3MNT]

Connect the KX3 utility it will show you the exact values the tuner has
chosen to match the antenna.



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KX3-Antenna-Tuner-Settings-tp7620648p7620664.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Field antenna tip

[lmarion]

Thanks for the tip Wayne. I have a lot of fun using random wires with my 
KX2, will try this out.


 The coolest QRP rig ever.

Leroy AB7CE

-Original Message- 
From: Wayne Burdick

Sent: Monday, July 25, 2016 1:45 PM
To: Elecraft Reflector
Cc: k...@yahoogroups.com
Subject: [Elecraft] Field antenna tip

Hi all,

This weekend I was using the KX2 with a random length of wire tossed in a 
tree and another random length laid on the ground. Normally the ATU (KXAT2) 
can handle just about anything, but this particular combination of lengths 
wasn't working well on 40 m; SWR was still around 3:1 after matching. It 
probably looked like an end-fed half wave to the tuner.


The wires were connected to a BNC-to-binding post adapter, suggesting a 
simple workaround. Rather than adjust the length of the wire by cutting or 
splicing, I simply reeled in a few feet of it and wrapped it around one of 
the binding posts, forming an inductor of perhaps several uH.


The ATU was then able to match the antenna on 40 m, as well as the other 
bands (up through 10 m).


73,
Wayne
N6KR

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Re: [Elecraft] KX3 Antenna Tuner Settings

[Bill Conkling]

I’m sorry, but I understood that Jay is looking to interrogate the ATU in the 
KX3 for the settings that the tuner made to match the antenna,

And unfortunately this feature is only available on the K3(s) KAT3(A).  i 
thought it was also available the KX3 ATU.

maybe in a futeure FW release.

…bc nr4c




> On Jul 25, 2016, at 1:06 PM, Jay Sissom  wrote:
> 
> Is there any way to determine the settings that the antenna tuner
> determined were necessary for an antenna?  I would like to be able to move
> my antenna around and determine which one is a better match for the
> frequency being used.  It would be awesome to do this with just the radio
> instead of needing an external device.
> 
> Thanks & 73
> Jay
> W9IUF
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Re: [Elecraft] [OT] Strange noise

[Guy Olinger K2AV]

Could also be bad points on the RX side of relay in the RX path somewhere.
 73, Guy K2AV.

On Monday, July 25, 2016, Vic Rosenthal 4X6GP  wrote:

> Has anyone experienced this:
>
> When I let the key up after sending a dash or two there is a "static
> crash" which seems to start AFTER or just as I stop sending.
>
> - It happens on various bands, but seems to happen more often on 30m or
> 20m.
>
> - It happens whether I am running my K3 barefoot or with a kW amp active.
>
> - It is intermittent. For example, this morning (6 am) it was bothering me
> on 30m. Now (8 pm) I can't make it happen.
>
> - On the P3 it looks like a series of horizontal lines extending across
> the display. Sometimes it is very short in duration, but sometimes it can
> go on for several seconds. You can imagine how annoying this is in a DX
> pileup.
>
> It is as if my RF is triggering an arc somewhere.
>
> Could a CFL lamp do this?
> --
> 73,
> Vic, 4X6GP
> Rehovot, Israel
> Formerly K2VCO
> http://www.qsl.net/k2vco/
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>


-- 
Sent via Gmail Mobile on my iPhone
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Re: [Elecraft] QSLs

[Vic Rosenthal 4X6GP]

I couldn't agree with Jim more!

I love LOTW and wish everyone would use it.

It's not just the cost of postage for the cards themselves. I am trying 
to increase my DXCC total and submitting confirmations by LOTW is so 
much easier than getting cards checked by the /one/ guy in the country 
who can do it, or mailing them to the ARRL in the USA and hoping that 
our troubled postal service will get them there and back.


73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/

On 25 Jul 2016 21:49, Jim Brown wrote:

On Mon,7/25/2016 11:34 AM, stan levandowski wrote:

On my QRZ page it says "No LoTW, no eQSL and no Buro."


That may be your preference, but it causes everyone who wants a
confirmation from you to spend money with the postal system. When we
were kids, it cost a penny or two to send a QSL. Now, including the cost
of printing a card, it costs someone who wants your card more than $1
round trip (.49 each way) in the US, more than $2 between US and Canada,
average $3.50 to/from other countries.

LOTW and eQSL are FREE and easy to use if you're using almost any of the
popular logging software. Putting our logs on LOTW is the considerate
thing to do. It's the RIGHT thing to do. It's the modern equivalent of
what we said in the '50s -- "the last courtesy of a QSO is a QSL." Now,
the last courtesy of a QSO is an upload to LOTW.

73, Jim K9YC

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[Elecraft] Field antenna tip

[Wayne Burdick]

Hi all,

This weekend I was using the KX2 with a random length of wire tossed in a tree 
and another random length laid on the ground. Normally the ATU (KXAT2) can 
handle just about anything, but this particular combination of lengths wasn't 
working well on 40 m; SWR was still around 3:1 after matching. It probably 
looked like an end-fed half wave to the tuner.

The wires were connected to a BNC-to-binding post adapter, suggesting a simple 
workaround. Rather than adjust the length of the wire by cutting or splicing, I 
simply reeled in a few feet of it and wrapped it around one of the binding 
posts, forming an inductor of perhaps several uH. 

The ATU was then able to match the antenna on 40 m, as well as the other bands 
(up through 10 m). 

73,
Wayne
N6KR

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Re: [Elecraft] KX3 Antenna Tuner Settings

[Jim Brown]

On Mon,7/25/2016 11:37 AM, Kevin - K4VD wrote:

​I think SWR is not a good indication of which antenna is better. As Wes
mentioned, a 50 ohm dummy load has a near perfect match and is about the
worse possible antenna.


Absolutely right.


A dipole fed with 600 ohm ladder line provides a terrible match before the
BALUN (and sometimes after) but generally is a fine performer because of
the low loss.


And sometimes that "low loss" is a fiction.


The better antenna is the one that can hear the signal you are after better
than the other you are testing against.


And also that the other station hears you better. The difference is 
efficiency (loss) in the antenna system, which generally does not matter 
on RX, but does matter on transmit.




And then only for that signal, in
that direction, at that time of day, on that band and with that particular
propagation mode in play.


Yep.


I think this is why you find some of the happiest hams are the ones that
have enough land for enough antennas to switch between them as the need
arises.


Yep.

73, Jim K9YC
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[Elecraft] QSLs

[Jim Brown]

On Mon,7/25/2016 11:34 AM, stan levandowski wrote:
On my QRZ page it says "No LoTW, no eQSL and no Buro." 


That may be your preference, but it causes everyone who wants a 
confirmation from you to spend money with the postal system. When we 
were kids, it cost a penny or two to send a QSL. Now, including the cost 
of printing a card, it costs someone who wants your card more than $1 
round trip (.49 each way) in the US, more than $2 between US and Canada, 
average $3.50 to/from other countries.


LOTW and eQSL are FREE and easy to use if you're using almost any of the 
popular logging software. Putting our logs on LOTW is the considerate 
thing to do. It's the RIGHT thing to do. It's the modern equivalent of 
what we said in the '50s -- "the last courtesy of a QSO is a QSL." Now, 
the last courtesy of a QSO is an upload to LOTW.


73, Jim K9YC

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Re: [Elecraft] Propagation

[stan levandowski]

Ah, yes Ron -- Paper QSLs!  On my QRZ page it says "No LoTW, no eQSL and 
no Buro."  I still revere old fashioned QSL cards, with handwritten 
notes and some evidence that our QSO was something more than just "599 
TU".  Try showing your grandchildren a printout of your LoTW contacts 
and see how many oohs and aahs you get ;-)



73, Stan WB2LQF


On Mon, Jul 25, 2016 at 01:04 PM, Ron D'Eau Claire wrote:

I don't "chase DX" but over the years have had a number of great, 
albeit short CW rag chews with various DX stations on a dead band. 
Usually the DX responds to my CQ, noting that they were surprised to 
hear me because the band seemed dead. So we chat for a few minutes. 
Unfortunately (depending upon your point of view) the various spotters 
would notice us, alert the 'net and soon there would be tuners on top 
of us so we'd QRT. As one DX station noted, "Sigh, here we go 
again..." and sure 'nuf pandemonium would erupt on the frequency with 
the DX station sending "UP 2  UP 2   UP 2..." while I set down my 
'phones, refreshed my cup of tea and wrote him a thank you note on an 
old-fashioned paper QSL card.

73, Ron AC7AC



-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
stan levandowski

Sent: Sunday, July 24, 2016 7:54 PM
To: k6...@foothill.net
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Propagation

Well, science provides predictions and suggests outcomes but I'm still 
a hopeless romantic who tunes the bands in spite of the numbers. 
Tonight I found a completely dead 20M band at 0220Z except for a 
single CW QSO in progress between WB6UIA (QRZ says Wyoming) and XE2HOE 
in Baja California (La Paz).  When they were finished, I gave XE2HOE a 
call and got a 579.  He was a steady S9 and the guy in Wyoming was S6.



I live in NY, my antenna is a 67' doublet in my attic and my rig is a
KX2 and it was running at 5 watts (I'm 100% CW and QRP).

Afterward, I tuned the band again but heard nothing.  Guess everyone 
read the prop stats and turned off their radios



73, Stan WB2LQF




On Sun, Jul 24, 2016 at 09:35 PM, Fred Jensen wrote:

There have been a string of M-class flares for the last 30 hours or 
so. Initial ones were in the M.8-M.9 range, recent ones somewhat 
smaller.  A was 8, Kp was 3 earlier this afternoon which wouldn't 
normally suggest terrible conditions, but I guess if the ionization 
is already very weak, any disturbance can have a large effect.


73,

Fred K6DGW> - Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 7/24/2016 6:28 PM, Kurt Cramer wrote:

Today was the most difficult Elacraft SSB net I have ever seen. Two
nets were running at the same time.. One on the East coast, the 
other
on the west coast! They couldn’t hear each other. About half past 
the
hour I started hearing Eric in Chicago here in Arizona. I guess 
there

were a couple of solar flares.

73 Kurt W7QHD

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Re: [Elecraft] KX3 Antenna Tuner Settings

[Kevin - K4VD]

​I think SWR is not a good indication of which antenna is better. As Wes
mentioned, a 50 ohm dummy load has a near perfect match and is about the
worse possible antenna.

A dipole fed with 600 ohm ladder line provides a terrible match before the
BALUN (and sometimes after) but generally is a fine performer because of
the low loss.

The better antenna is the one that can hear the signal you are after better
than the other you are testing against. And then only for that signal, in
that direction, at that time of day, on that band and with that particular
propagation mode in play.

I think this is why you find some of the happiest hams are the ones that
have enough land for enough antennas to switch between them as the need
arises.

Kev / K4VD
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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[Don Wilhelm]

Brian,

You might try going into the KAT3 menu and go through the L1-L8 and 
C1-C8 settings to hear the relays click with each selection.


If all the relays are working, you should be able to do a check on the 
health of the inductors and capacitors using a method similar to that 
shown for the KAT100 in the right column of page 35 - manually select 
the inductors starting with L1 and see what the SWR is on a high band.  
With each other inductor, the SWR should increase.  Change to a lower 
band if the SWR gets too high to indicate (highest is 9.9).  Do the same 
for the capacitors.


I have not tried this technique with the KAT3 (but it should work) - I 
have used it with the KAT100 and the KAT2.


73,
Don W3FPR

On 7/25/2016 9:30 AM, brian wrote:

Hi Don,

Further insight needed.

John and I have looked into the 80M tuner strangeness problem further.
We both have qualitatively seen the same thing.  It is related to 
trying to tune Z's that are on the order of 25-30 ohms on 160M/80M.




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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[Brian Hunt]

Hi Brian,
Just a thought, but given the KAT3 uses discrete components for C and L, 
what you are seeing may be as close as you can get.  If you have 
calculated the tuner parameters from the Z you are seeing at the antenna 
going into the tuner, compare those with the discrete combinations 
possible in the tuner.  Find the closest ones and then work backwards to 
the SWR value.  SimSmith Smith chart software is great for this.  The 
KAT3 schematic is included in the K3 schematics .pdf file.


I ran into a similar situation on 40 meters with an MFJ remote 
autotuner.  Drove me nuts until I figured it out.


Good luck!

Brian, K0DTJ

On 7/25/2016 06:30, brian wrote:

Further insight needed.



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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[Wes Stewart]

There is something wrong with the unmatched SWR values you measured/posted.

If your load is actually 23.5 +j0 then the beginning SWR is ~2.1:1, not the 1.6 
you list.  That's not to say that the tuner shouldn't do something with it but 
it does point to something amiss.  Likewise the values you give for 4:1 are 
closer to 3.6:1




On 7/25/2016 6:30 AM, brian wrote:

Hi Don,

Further insight needed.

John and I have looked into the 80M tuner strangeness problem further.
We both have qualitatively seen the same thing.  It is related to trying to 
tune Z's that are on the order of 25-30 ohms on 160M/80M.


John already addressed the grounding issue in his K3.

The original problem raised was trying to tune a vertical antenna on 80M which 
had a measured R=30 ohms and XL =18 ohms.  The tuner only slightly reduced the 
SWR.  Repeated presses of ATU Tune did not improve things.


A calculation of the L network component values needed to match this load 
shows L/C values well within the range that the KAT could switch in.


I then tried matching a 25 ohm pure resistive load-- two 50 ohm dummy loads in 
parallel.  One would think this kind of load could easily be matched. Not so. 
It would match only on the upper end of 80M and not at all on 160M.  The tuner 
did not reduce the 2:1 SWR at all on 160M and only brought it down a few 
tenths on the low end of 80.


It is interesting to note that the high end of 80 match used L/C values 
greater than needed in the vertical antenna to match it.


John tried other resistive and combined resistive/reactive loads. Here are his 
results.


Freq Load value measured SWR on K3SWR on K3 after KAT3 tune
1.83623.5 (via 1 m. RG213) 1.61.6
1.83632+j28 2.5 1.0
3.52223.5 1.6 1.3
3.52256+j55 3.0 1.0
7.00623.5 1.5 1.0
7.006132-j764.0 1.0
10.100   23.51.3 1.0
10.100   30-j48 4.0 1.0

So we have two different K3's having the same qualitative matching problem 
with lower Z loads on 80/160.


Of course it is possible that both KAT tuners have other component failures.

It would be interesting if others would try the two paralleled dummy load 
experiment.


Elecraft suggested shorting out the 8.215 MHz trap in series with the 
ATU/output.  They say the trap has been removed in later KAT versions.

The trap consists of parallel 96 nH and 3900 pf components.

It is not clear that would fix this particular issue.  It undoubtedly was a 
fix for other issues.


Looking at the component values and parallel configuration:
1) Both shorted would be the Elecraft fix
2) Open C: Parallel inductor would shunt the RF around the failed cap. On 
80/160 the added series reactance would be <2 ohms.
3) Open inductor: Parallel C would introduce a series reactance of less than 
an ohm.

4) Both open, the tuner would not match on any band.

So we are left with a mystery.

Why are lower Z (~25-30 ohm) loads so hard to match on 80/160?

It would be instructive if others have luck matching the 25 ohm paralleled 
dummy load case on 80/160.


Insight in where else to look would be welcomed.

73 de Brian/K3KO


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Re: [Elecraft] [OT] Strange noise - forgot to add

[Vic Rosenthal 4X6GP]

I should have added that sometimes what appears to be the same noise 
occurs when I am NOT transmitting.


73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/

On 25 Jul 2016 20:05, Vic Rosenthal 4X6GP wrote:

Has anyone experienced this:

When I let the key up after sending a dash or two there is a "static
crash" which seems to start AFTER or just as I stop sending.

- It happens on various bands, but seems to happen more often on 30m or
20m.

- It happens whether I am running my K3 barefoot or with a kW amp active.

- It is intermittent. For example, this morning (6 am) it was bothering
me on 30m. Now (8 pm) I can't make it happen.

- On the P3 it looks like a series of horizontal lines extending across
the display. Sometimes it is very short in duration, but sometimes it
can go on for several seconds. You can imagine how annoying this is in a
DX pileup.

It is as if my RF is triggering an arc somewhere.

Could a CFL lamp do this?

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[Elecraft] KX2 Feature request OFS / DISPlay

[Doug Lane]

Warren-
I believe that if you use the"rate" button to the left of the main tuning
knob, on the bottom row that it does this function.  At least, that was
what I was doing before I realized the OFS knob does the same thing.   I
still have not read the entire manual, nor do I understand all of the
functions, but at least on my KX2, that is what happens.  And when I
learned about the OFS knob (the cheat sheet floating around the email
lists, is great)  I wondered about the duplication of the feature.Both
values change the amount I place in the menu for VFO CRS.

Doug
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Re: [Elecraft] KX3 Antenna Tuner Settings

[Wes Stewart]

Your dummy load would always be the better match.  So why select any other 
load?  Now if you want to communicate, you should probably select the antenna 
that provides the best gain/lowest noise, etc and NOT worry so much about the match.


On 7/25/2016 10:06 AM, Jay Sissom wrote:

Is there any way to determine the settings that the antenna tuner
determined were necessary for an antenna?  I would like to be able to move
my antenna around and determine which one is a better match for the
frequency being used.  It would be awesome to do this with just the radio
instead of needing an external device.

Thanks & 73
Jay
W9IUF


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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[Ron D'Eau Claire]

FWIW, my K3 (not S) matches 25 ohms resistive (two 50 ohm loads in parallel
as you described) on both the low end of 160 and 80. In both cases the
matched conditions shows an SWR of 1.5:1.

73, Ron AC7AC

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of brian
Sent: Monday, July 25, 2016 6:30 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 (not S) Antenna tuner strangeness

Hi Don,

Further insight needed.

John and I have looked into the 80M tuner strangeness problem further.
We both have qualitatively seen the same thing.  It is related to trying to
tune Z's that are on the order of 25-30 ohms on 160M/80M.

John already addressed the grounding issue in his K3.

The original problem raised was trying to tune a vertical antenna on 80M
which had a measured R=30 ohms and XL =18 ohms.  The tuner only slightly
reduced the SWR.  Repeated presses of ATU Tune did not improve things.

A calculation of the L network component values needed to match this load
shows L/C values well within the range that the KAT could switch in.

I then tried matching a 25 ohm pure resistive load-- two 50 ohm dummy loads
in parallel.  One would think this kind of load could easily be matched. Not
so. It would match only on the upper end of 80M and not at all on 160M.  The
tuner did not reduce the 2:1 SWR at all on 160M and only brought it down a
few tenths on the low end of 80.

It is interesting to note that the high end of 80 match used L/C values
greater than needed in the vertical antenna to match it.

John tried other resistive and combined resistive/reactive loads.  Here are
his results.

Freq Load value measured SWR on K3SWR on K3 after KAT3 tune
1.83623.5 (via 1 m. RG213) 1.61.6
1.83632+j28 2.5 1.0
3.52223.5 1.6 1.3
3.52256+j55 3.0 1.0
7.00623.5 1.5 1.0
7.006132-j764.0 1.0
10.100   23.51.3 1.0
10.100   30-j48 4.0 1.0

So we have two different K3's having the same qualitative matching problem
with lower Z loads on 80/160.

Of course it is possible that both KAT tuners have other component failures.

It would be interesting if others would try the two paralleled dummy load
experiment.

Elecraft suggested shorting out the 8.215 MHz trap in series with the
ATU/output.  They say the trap has been removed in later KAT versions.
The trap consists of parallel 96 nH and 3900 pf components.

It is not clear that would fix this particular issue.  It undoubtedly was a
fix for other issues.

Looking at the component values and parallel configuration:
1) Both shorted would be the Elecraft fix
2) Open C: Parallel inductor would shunt the RF around the failed cap. 
On 80/160 the added series reactance would be <2 ohms.
3) Open inductor: Parallel C would introduce a series reactance of less than
an ohm.
4) Both open, the tuner would not match on any band.

So we are left with a mystery.

Why are lower Z (~25-30 ohm) loads so hard to match on 80/160?

It would be instructive if others have luck matching the 25 ohm paralleled
dummy load case on 80/160.

Insight in where else to look would be welcomed.

73 de Brian/K3KO


On 7/25/2016 2:35 AM, Don Wilhelm wrote:
> John,
>
> Yes, the "earthing" connection to the SO-239 jacks is important.
> That connection is provided by the mechanical connection to the 
> standoff between the right side panel and the KAT3.
> The assembly manual instructions will provide adequate connection - 
> first insert the side panel screw through the 2-D connector and then 
> tighten the standoff to the 2D connector, and lastly, put the screw 
> and lockwasher into the standoff.
>
> The problem is that *if* that long screw in the upper rear corner of 
> the right side panel is removed for any reason, it cannot be tightened 
> properly without going through the entire procedure - tighten the 2D 
> connector, then tighten the standoff and finally tighten the screw 
> into the standoff.
>
> If one tries to remove that screw from the right side panel, it is 
> impossible to re-tighten everything without going through the entire 
> process in order.  The threads of the 2D connector cannot be properly 
> tightened to the threads of the standoff.
>
> A shortcut is to drill out the screw threads on that 2D connector 
> allowing the screw to pass through the 2D connector without threads.
> That will permit the screw threads to pass through the 2D connector 
> and be tightened onto the standoff.
>
> I recommend that anyone removing the right side panel from their 
> K3/K3S to drill out the threads in this hole of the 2D connector so it 
> can be assembled tightly without going through the entire procedure of 
> first tightening the 2D connector, then the standoff and finally the 
> screw and 

[Elecraft] KX3 Antenna Tuner Settings

[Jay Sissom]

Is there any way to determine the settings that the antenna tuner
determined were necessary for an antenna?  I would like to be able to move
my antenna around and determine which one is a better match for the
frequency being used.  It would be awesome to do this with just the radio
instead of needing an external device.

Thanks & 73
Jay
W9IUF
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Re: [Elecraft] Propagation

[Ron D'Eau Claire]

I don't "chase DX" but over the years have had a number of great, albeit short 
CW rag chews with various DX stations on a dead band. Usually the DX responds 
to my CQ, noting that they were surprised to hear me because the band seemed 
dead. So we chat for a few minutes. Unfortunately (depending upon your point of 
view) the various spotters would notice us, alert the 'net and soon there would 
be tuners on top of us so we'd QRT. As one DX station noted, "Sigh, here we go 
again..." and sure 'nuf pandemonium would erupt on the frequency with the DX 
station sending "UP 2  UP 2   UP 2..." while I set down my 'phones, refreshed 
my cup of tea and wrote him a thank you note on an old-fashioned paper QSL 
card.  

73, Ron AC7AC



-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of stan 
levandowski
Sent: Sunday, July 24, 2016 7:54 PM
To: k6...@foothill.net
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Propagation

Well, science provides predictions and suggests outcomes but I'm still a 
hopeless romantic who tunes the bands in spite of the numbers.  Tonight I found 
a completely dead 20M band at 0220Z except for a single CW QSO in progress 
between WB6UIA (QRZ says Wyoming) and XE2HOE in Baja California (La Paz).  When 
they were finished, I gave XE2HOE a call and got a 579.  He was a steady S9 and 
the guy in Wyoming was S6.


I live in NY, my antenna is a 67' doublet in my attic and my rig is a
KX2 and it was running at 5 watts (I'm 100% CW and QRP). 


Afterward, I tuned the band again but heard nothing.  Guess everyone 
read the prop stats and turned off their radios


73, Stan WB2LQF




On Sun, Jul 24, 2016 at 09:35 PM, Fred Jensen wrote:

> There have been a string of M-class flares for the last 30 hours or 
> so. Initial ones were in the M.8-M.9 range, recent ones somewhat 
> smaller.  A was 8, Kp was 3 earlier this afternoon which wouldn't 
> normally suggest terrible conditions, but I guess if the ionization is 
> already very weak, any disturbance can have a large effect.
>
> 73,
>
> Fred K6DGW> - Northern California Contest Club
> - CU in the Cal QSO Party 1-2 Oct 2016
> - www.cqp.org
>
> On 7/24/2016 6:28 PM, Kurt Cramer wrote:
>> Today was the most difficult Elacraft SSB net I have ever seen. Two
>> nets were running at the same time.. One on the East coast, the other
>> on the west coast! They couldn’t hear each other. About half past the
>> hour I started hearing Eric in Chicago here in Arizona. I guess there
>> were a couple of solar flares.
>>
>> 73 Kurt W7QHD
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[Elecraft] [OT] Strange noise

[Vic Rosenthal 4X6GP]

Has anyone experienced this:

When I let the key up after sending a dash or two there is a "static 
crash" which seems to start AFTER or just as I stop sending.


- It happens on various bands, but seems to happen more often on 30m or 20m.

- It happens whether I am running my K3 barefoot or with a kW amp active.

- It is intermittent. For example, this morning (6 am) it was bothering 
me on 30m. Now (8 pm) I can't make it happen.


- On the P3 it looks like a series of horizontal lines extending across 
the display. Sometimes it is very short in duration, but sometimes it 
can go on for several seconds. You can imagine how annoying this is in a 
DX pileup.


It is as if my RF is triggering an arc somewhere.

Could a CFL lamp do this?
--
73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/
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Re: [Elecraft] K3 (not S) Antenna tuner strangeness

[brian]

Hi Don,

Further insight needed.

John and I have looked into the 80M tuner strangeness problem further.
We both have qualitatively seen the same thing.  It is related to trying 
to tune Z's that are on the order of 25-30 ohms on 160M/80M.


John already addressed the grounding issue in his K3.

The original problem raised was trying to tune a vertical antenna on 80M 
which had a measured R=30 ohms and XL =18 ohms.  The tuner only slightly 
reduced the SWR.  Repeated presses of ATU Tune did not improve things.


A calculation of the L network component values needed to match this 
load shows L/C values well within the range that the KAT could switch in.


I then tried matching a 25 ohm pure resistive load-- two 50 ohm dummy 
loads in parallel.  One would think this kind of load could easily be 
matched. Not so. It would match only on the upper end of 80M and not at 
all on 160M.  The tuner did not reduce the 2:1 SWR at all on 160M and 
only brought it down a few tenths on the low end of 80.


It is interesting to note that the high end of 80 match used L/C values 
greater than needed in the vertical antenna to match it.


John tried other resistive and combined resistive/reactive loads.  Here 
are his results.


Freq Load value measured SWR on K3SWR on K3 after KAT3 tune
1.83623.5 (via 1 m. RG213) 1.61.6
1.83632+j28 2.5 1.0
3.52223.5 1.6 1.3
3.52256+j55 3.0 1.0
7.00623.5 1.5 1.0
7.006132-j764.0 1.0
10.100   23.51.3 1.0
10.100   30-j48 4.0 1.0

So we have two different K3's having the same qualitative matching 
problem with lower Z loads on 80/160.


Of course it is possible that both KAT tuners have other component failures.

It would be interesting if others would try the two paralleled dummy 
load experiment.


Elecraft suggested shorting out the 8.215 MHz trap in series with the 
ATU/output.  They say the trap has been removed in later KAT versions.

The trap consists of parallel 96 nH and 3900 pf components.

It is not clear that would fix this particular issue.  It undoubtedly 
was a fix for other issues.


Looking at the component values and parallel configuration:
1) Both shorted would be the Elecraft fix
2) Open C: Parallel inductor would shunt the RF around the failed cap. 
On 80/160 the added series reactance would be <2 ohms.
3) Open inductor: Parallel C would introduce a series reactance of less 
than an ohm.

4) Both open, the tuner would not match on any band.

So we are left with a mystery.

Why are lower Z (~25-30 ohm) loads so hard to match on 80/160?

It would be instructive if others have luck matching the 25 ohm 
paralleled dummy load case on 80/160.


Insight in where else to look would be welcomed.

73 de Brian/K3KO


On 7/25/2016 2:35 AM, Don Wilhelm wrote:

John,

Yes, the "earthing" connection to the SO-239 jacks is important.
That connection is provided by the mechanical connection to the standoff
between the right side panel and the KAT3.
The assembly manual instructions will provide adequate connection -
first insert the side panel screw through the 2-D connector and then
tighten the standoff to the 2D connector, and lastly, put the screw and
lockwasher into the standoff.

The problem is that *if* that long screw in the upper rear corner of the
right side panel is removed for any reason, it cannot be tightened
properly without going through the entire procedure - tighten the 2D
connector, then tighten the standoff and finally tighten the screw into
the standoff.

If one tries to remove that screw from the right side panel, it is
impossible to re-tighten everything without going through the entire
process in order.  The threads of the 2D connector cannot be properly
tightened to the threads of the standoff.

A shortcut is to drill out the screw threads on that 2D connector
allowing the screw to pass through the 2D connector without threads.
That will permit the screw threads to pass through the 2D connector and
be tightened onto the standoff.

I recommend that anyone removing the right side panel from their K3/K3S
to drill out the threads in this hole of the 2D connector so it can be
assembled tightly without going through the entire procedure of first
tightening the 2D connector, then the standoff and finally the screw and
lockwasher.

73,
Don W3FPR

On 7/23/2016 9:09 PM, g3...@onetel.com wrote:

Guys,
I've run into something on 80M trying to use the internal antenna tuner.
It fails to tune to a low SWR. Brian K3KOI had a similar problem but
never quite got to the bottom of it because partly intermittent,
possibly multiple faults.
In the end to fix it:-
a) I rewound one of the swr sensor toroids (centre wire had possibly
arced to ferrite because I disconnected antenna by mistake and tuned),
and