[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

   It is always surprising where my signal can reach.  But QSB was 
alternately boosting and diminishing signals.  Some overall hiss but 
mostly quiet with a few whistlers passing through the frequency.



On 14050 kHz at 2300z:

W0CZ - Ken - ND

K6XK - Roy - IA

K4JPN - Steve - GA


On 7045 kHz at 0100z:

W0CZ - Ken - ND

K0DTJ - Brian - CA

K6PJV - Dale - CA

W8OV - Dave - TX

KL7CW - Rick - AK


For those of you aching to learn about logging and all its gadgets go here:

http://www.vannattabros.com

It has all sorts of topics and photos and is about this area.  A lot of 
broken terrain logging techniques were developed in my neighborhood.  
The narrow gauge tracks are still visible in some locations.  There was 
a cedar mill only a mile from my house with a dance hall (etc.) next to 
it.  The nearby town - Bacona no longer exists but leaves its name on 
roads.  Where there had been many homesteaded houses there are only a 
few left standing. Farming does not work up here unless you are cropping 
stands of Doug Fir.


   73,

   Kevin.  KD5ONS

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[Elecraft] KPA1500 Kit?

[Ken Bandy, KJ9B]

Are there any plans yet for a KPA 1500 in Kit form?

 

73,

Ken, KJ9B

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Re: [Elecraft] Suggestions??

[Don Wilhelm]

Rich,

I assume you are using the internal ATU.  If so, the external wattmeter 
will not change - it will show the SWR into the antenna, and not at the 
input to the internal ATU.


An ATU does not change the antenna SWR, it only adds L and C in a 
combination that will make the PA transistors in the transmitter 'happy' 
which allows maximum power output.


73,
Don W3FPR

On 1/28/2018 7:31 PM, Rich Arland wrote:

While attempting to get Z60A on 40M last night I ran into a problem that I 
never encountered before.


My KX2 has the built in auto ATU. I took the output from the rig into a QRP SWR/PWR bridge and then 
into my 40M EDZ and hit the "ATU" on the rig. "Click, Buzz" and the rig came up 
with a 1.0-1 SWR reading. HOWEVER, my QRP bridge was pegged in reverse indicating that there was no 
match.


Earlier I had tried this set up on my 20M Yagi and it worked great. The rig 
gave me 1.0-1 and the analog meters on the QRP bridge did the same.


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Re: [Elecraft] Suggestions??

[Fred Jensen]

Rich,

As you describe your configuration, your SWR bridge is between your KX2 
and the antenna.  The matching that takes place is within your KX2, and 
apparently, the ATU was able to achieve a match. That doesn't change 
what was happening on the transmission line from the antenna to your SWR 
bridge, it is what is is and always was.


No "antenna tuner" in the history of humankind has ever "tuned" an 
antenna.  It's a really unfortunate choice of nomenclature.  The ATU in 
your KX2 transformed the impedance it saw at the antenna connector to 
something the PA stage was happy with.  That's all. Nothing changed on 
the transmission line from the antenna as evidenced by your SWR Bridge's 
report.


That very high SWR on your transmission line could be anything from a 
"Not To Worry" to a "Very High Loss" situation.  You didn't say what 
your transmission line is, EDZ antennas are often fed with some form of 
open-wire line.  If so for you, losses are likely low.  If it's fed with 
coax, maybe not so much.  If you make Q's, it's working, that's why it's 
called "Amateur Radio." [:-)


73,

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

On 1/28/2018 4:31 PM, Rich Arland wrote:

While attempting to get Z60A on 40M last night I ran into a problem that I 
never encountered before.


My KX2 has the built in auto ATU. I took the output from the rig into a QRP SWR/PWR bridge and then 
into my 40M EDZ and hit the "ATU" on the rig. "Click, Buzz" and the rig came up 
with a 1.0-1 SWR reading. HOWEVER, my QRP bridge was pegged in reverse indicating that there was no 
match.


Earlier I had tried this set up on my 20M Yagi and it worked great. The rig 
gave me 1.0-1 and the analog meters on the QRP bridge did the same.


The only thing I can think of is the 40M EDZ is the problem. I am going to try 
removing the QRP bridge and see if that makes a difference.


In the mean time, anyone have a guess as to what I am seeing on 40M??



Vy 73 es gud DX!

Rich Arland   K7SZ
Bent Dipole Ranch, Dacula, GA
Author: "ARRL's Low Power Communications, the Art and Science of QRP" (all 4 
editions)

Cogito ergo CQ (I think therefore, I HAM)
http://commobunker.blogspot.com/


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Re: [Elecraft] Flying with a Spiderpole

[Jamie WW3S]

didn’t take a spiderpole, but a Crankir, its bag just fit in my checked 
luggage, made it to VP9 and back without a question .


-Original Message- 
From: Thaire Bryant

Sent: Sunday, January 28, 2018 3:52 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Flying with a Spiderpole

I will be flying to Europe in a few weeks with my KX3 and a Spiderpole.  Has
anyone had experience bringing a Spiderpole through security or checking as
baggage?



Thanks in advance,



Thaire  W2APF







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Re: [Elecraft] Suggestions??

[Peter Lambert]

The Zepp is not 50R.  The Yagi is.  Both SWR meters are likely telling you
the truth.

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rich Arland
Sent: Monday, 29 January 2018 10:31 AM
To: Elecraft Reflector
Subject: [Elecraft] Suggestions??

While attempting to get Z60A on 40M last night I ran into a problem that I
never encountered before.


My KX2 has the built in auto ATU. I took the output from the rig into a QRP
SWR/PWR bridge and then into my 40M EDZ and hit the "ATU" on the rig.
"Click, Buzz" and the rig came up with a 1.0-1 SWR reading. HOWEVER, my QRP
bridge was pegged in reverse indicating that there was no match.


Earlier I had tried this set up on my 20M Yagi and it worked great. The rig
gave me 1.0-1 and the analog meters on the QRP bridge did the same.


The only thing I can think of is the 40M EDZ is the problem. I am going to
try removing the QRP bridge and see if that makes a difference.


In the mean time, anyone have a guess as to what I am seeing on 40M??



Vy 73 es gud DX!

Rich Arland   K7SZ
Bent Dipole Ranch, Dacula, GA
Author: "ARRL's Low Power Communications, the Art and Science of QRP" (all 4
editions)

Cogito ergo CQ (I think therefore, I HAM) http://commobunker.blogspot.com/


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Re: [Elecraft] Flying with a Spiderpole

[Jeffrey Otterson]

I've transported my SOTA Beams 10M travel mast in checked baggage
internationally.  It's only 27 inches and fits in a big suitcase.  Never a
question., but I do pack it where it can be found immediately.  I expect
you could take it as carry-on, too, but why?

Jeff n1kdo
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Re: [Elecraft] Suggestions??

[marvwheeler]

Rich:

May be a dumb question but is your SWR bridge between the ATU and the
antenna? If so, it is not going to give you any useful information.

Marv
KG7V


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rich Arland
Sent: Sunday, January 28, 2018 4:31 PM
To: Elecraft Reflector 
Subject: [Elecraft] Suggestions??

While attempting to get Z60A on 40M last night I ran into a problem that I
never encountered before.


My KX2 has the built in auto ATU. I took the output from the rig into a QRP
SWR/PWR bridge and then into my 40M EDZ and hit the "ATU" on the rig.
"Click, Buzz" and the rig came up with a 1.0-1 SWR reading. HOWEVER, my QRP
bridge was pegged in reverse indicating that there was no match.


Earlier I had tried this set up on my 20M Yagi and it worked great. The rig
gave me 1.0-1 and the analog meters on the QRP bridge did the same.


The only thing I can think of is the 40M EDZ is the problem. I am going to
try removing the QRP bridge and see if that makes a difference.


In the mean time, anyone have a guess as to what I am seeing on 40M??



Vy 73 es gud DX!

Rich Arland   K7SZ
Bent Dipole Ranch, Dacula, GA
Author: "ARRL's Low Power Communications, the Art and Science of QRP" (all 4
editions)

Cogito ergo CQ (I think therefore, I HAM) http://commobunker.blogspot.com/


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[Elecraft] Suggestions??

[Rich Arland]

While attempting to get Z60A on 40M last night I ran into a problem that I 
never encountered before.


My KX2 has the built in auto ATU. I took the output from the rig into a QRP 
SWR/PWR bridge and then into my 40M EDZ and hit the "ATU" on the rig. "Click, 
Buzz" and the rig came up with a 1.0-1 SWR reading. HOWEVER, my QRP bridge was 
pegged in reverse indicating that there was no match.


Earlier I had tried this set up on my 20M Yagi and it worked great. The rig 
gave me 1.0-1 and the analog meters on the QRP bridge did the same.


The only thing I can think of is the 40M EDZ is the problem. I am going to try 
removing the QRP bridge and see if that makes a difference.


In the mean time, anyone have a guess as to what I am seeing on 40M??



Vy 73 es gud DX!

Rich Arland   K7SZ
Bent Dipole Ranch, Dacula, GA
Author: "ARRL's Low Power Communications, the Art and Science of QRP" (all 4 
editions)

Cogito ergo CQ (I think therefore, I HAM)
http://commobunker.blogspot.com/


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Re: [Elecraft] Photos of build

[Henrik Stenstrom]

It's a clever modernised take on the Paraset.

I like it!

Henrik - VK2HHS

On Mon, Jan 29, 2018 at 10:11 AM, Mark E. Musick 
wrote:

> Not a problem Mike. It is radio related.
>  You might fill us in on where you got it and cost. It looks like a nice
> QRP kit to build.
> Can you give us details on power out etc.?
> It would be an interesting poll to see how many on the reflector know who
> Agent 86 is and who the girl is in the photograph. HI
>
> 73,
> Mark, WB9CIF
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net [mailto:elecraft-bounces@
> mailman.qth.net] On Behalf Of Mike Markowski
> Sent: Sunday, January 28, 2018 10:47 PM
> To: Elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Photos of build
>
> Sorry!  Soon as I hit 'send' I realized I sent to the wrong group.
>
> 73,
> Mike ab3ap (K1, K2, K3 op!)
>
> On 01/28/2018 05:46 PM, Mike Markowski wrote:
> > Some photos of my effort!
> >
> >http://udel.edu/~mm/ham/bayouJumper/
> >
> > 73,
> > Mike ab3ap
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>
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Re: [Elecraft] Photos of build

[Mike Markowski]

Thanks, guys, for understanding - and being interested.

It is a fun kit to build and is from Four States QRP Group, 
http://www.4sqrp.com .  This a regenerative design based on the famous 
Paraset and Atlantic Hopper, which Four States calls the Bayou Hopper.


I had my first qso on it yesterday and it really takes a bit of a fine 
touch to continually tune with one hand while the op is transmitting. 
But it's all part of the fun!  It puts out about 5 W to 6 W.


And then Agent 99...  :-D

73!
Mike ab3ap

On 01/28/2018 06:11 PM, Mark E. Musick wrote:

Not a problem Mike. It is radio related.
  You might fill us in on where you got it and cost. It looks like a nice QRP 
kit to build.
Can you give us details on power out etc.?
It would be an interesting poll to see how many on the reflector know who Agent 
86 is and who the girl is in the photograph. HI

73,
Mark, WB9CIF

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Markowski
Sent: Sunday, January 28, 2018 10:47 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Photos of build

Sorry!  Soon as I hit 'send' I realized I sent to the wrong group.

73,
Mike ab3ap (K1, K2, K3 op!)

On 01/28/2018 05:46 PM, Mike Markowski wrote:

Some photos of my effort!

http://udel.edu/~mm/ham/bayouJumper/

73,
Mike ab3ap

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Re: [Elecraft] Photos of build

[Mark E. Musick]

Not a problem Mike. It is radio related.
 You might fill us in on where you got it and cost. It looks like a nice QRP 
kit to build.
Can you give us details on power out etc.?
It would be an interesting poll to see how many on the reflector know who Agent 
86 is and who the girl is in the photograph. HI

73,
Mark, WB9CIF

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Markowski
Sent: Sunday, January 28, 2018 10:47 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Photos of build

Sorry!  Soon as I hit 'send' I realized I sent to the wrong group.

73,
Mike ab3ap (K1, K2, K3 op!)

On 01/28/2018 05:46 PM, Mike Markowski wrote:
> Some photos of my effort!
> 
>http://udel.edu/~mm/ham/bayouJumper/
> 
> 73,
> Mike ab3ap
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Re: [Elecraft] Photos of build

[Mike Markowski]

Sorry!  Soon as I hit 'send' I realized I sent to the wrong group.

73,
Mike ab3ap (K1, K2, K3 op!)

On 01/28/2018 05:46 PM, Mike Markowski wrote:

Some photos of my effort!

   http://udel.edu/~mm/ham/bayouJumper/

73,
Mike ab3ap

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[Elecraft] Photos of build

[Mike Markowski]

Some photos of my effort!

  http://udel.edu/~mm/ham/bayouJumper/

73,
Mike ab3ap
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Re: [Elecraft] Flying with a Spiderpole

[Dave G3WGN M6O]

Hi Thaire,
The 6Gs DXpeditions (TX6G, E6GG, ZL7G + later this year VK9X(full call TBD))
have all included 12m and/or 18m Spiderpoles as antenna supports.  We wrap
them in bubble wrap and ship them in ski bags or hard ski/snowboard cases as
checked baggage.  No issues with breakage or loss, but we have had to
describe them as 'fishing poles' a couple of times.
If you want to have your antenna support as carry-on baggage, you'll usually
need to keep it to a collapsed length of 1.2m (4ft) or less.  For that the
DX-Wire poles are ideal (available from
http://www.dx-wire.de/lng/en/fiberglass-poles/?xploidID=156c8060417ce6049df949b4569517dc
or from SOTABeams)
HTH.
Enjoy the trip!
David G3WGN  M6O  WJ6O

---

Original post:
I will be flying to Europe in a few weeks with my KX3 and a Spiderpole.  Has
anyone had experience bringing a Spiderpole through security or checking as
baggage?

 

Thanks in advance,

 

Thaire  W2APF

 

 

 

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[Elecraft] Flying with a Spiderpole

[Thaire Bryant]

I will be flying to Europe in a few weeks with my KX3 and a Spiderpole.  Has
anyone had experience bringing a Spiderpole through security or checking as
baggage?

 

Thanks in advance,

 

Thaire  W2APF

 

 

 

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Re: [Elecraft] Who would spend 30 hours+ building an Elecraft K2? (plus: special pricing)

[Wayne Burdick]

Special K2 pricing is good until at least the end of February. We’ll fix this 
on the website early next week.

tnx
Wayne
N6KR



> On Jan 27, 2018, at 6:19 PM, Neil Zampella  wrote:
> 
> Wayne,
> 
> I've been trying to convince SWMBO that I need something to keep me busy now 
> that I'm semi-retired, I almost have her convinced that my building a K2 
> would do it, but I noticed that the pricing lasts until Jan 31st.   Are you 
> thinking about a Valentine's Day sale too ???
> 
> 73
> 
> Neil Zampella, KN3ILZ
> Happy KX3/KXPA100/PX3 owner
> 


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Re: [Elecraft] (OT) magnet wire

[Troy, W6HV]

I usually get it from DigiKey. They carry a large variety.
73,
Troy, W6HV
-Original Message- 
From: Don Wilhelm

Sent: Sunday, January 28, 2018 10:28 AM
To: Robert 'RC' Conley ; Elecraft@mailman.qth.net
Subject: Re: [Elecraft] (OT) magnet wire

I have always referred to it as "Thermalize".
Have you tried that in a google search?

73,
Don W3FPR

On 1/28/2018 11:43 AM, Robert 'RC' Conley wrote:

Elecraft web site is the best source of information
What is the actual designation of heat strip able (thermalize) magnet wire

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Re: [Elecraft] (OT) magnet wire

[Clay Autery]

Thermaleze wire is what I think y'all are talking about.
Amidon has some...
Finding good wire of known origin/specs in the required quantity at a 
reasonable price is quite the challenge.


Sent from my Verizon, Samsung Galaxy smartphone
 Original message From: Don Wilhelm  
Date: 1/28/18  12:28  (GMT-06:00) To: Robert 'RC' Conley , 
Elecraft@mailman.qth.net Subject: Re: [Elecraft] (OT) magnet wire 
I have always referred to it as "Thermalize".
Have you tried that in a google search?

73,
Don W3FPR

On 1/28/2018 11:43 AM, Robert 'RC' Conley wrote:
> Elecraft web site is the best source of information
> What is the actual designation of heat strip able (thermalize) magnet wire
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[Elecraft] Lease a KPA1500?

[Dauer, Edward]

This an informal, nonscientific survey:  Would there be any interest in leasing 
rather than buying a KPA1500?  The full price of the amp is $6K, which with 
sales taxes and shipping, if applicable, would bring it to $6.5K or so.  Not 
everyone wants to plunk that much down all at once.  So I was thinking – 
suppose a lessor (“owner” is easier) bought the amp and leased it to the lessee 
(the “user”) for a monthly rate.  At the end of the lease term it would either 
be returned or purchased for the buyout price, much like a car lease.

Do you think there would be any interest in such a deal?  What monthly fee 
would seem fair and saleable?

I have begun thinking about the terms of the deal.  The amp would be shipped 
directly from Elecraft to the user, so it never comes to the owner.  Any 
problems on delivery the user works out with Elecraft.  Mods, if any, during 
the lease would be factory installed, or not installed, and the cost shared.  
In short, the user never opens the chassis.  Likewise for repairs, if any.   
Repairs made necessary solely by the user’s out-of-spec actions are done by 
Elecraft at the user’s cost.  Insurance coverage, maybe through ARRL, for 
lightning and the like would be in place.  At the end of the lease, if the amp 
is returned to the owner, it goes first to Elecraft for an inspection and tune 
up, at shared cost.

Years ago a partner and I had a sideline business of leasing general aviation 
aircraft, so I do have some tolerance for risk.  Fortunately, we never had a 
loss.  But I don’t know how much leasing demand there might be out there for a 
full legal limit Elecraft amp , or at what price.  Any thoughts at all would be 
very much appreciated.

Thanks,

Ted, KN1CBR


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Re: [Elecraft] (OT) magnet wire

[Don Wilhelm]

I have always referred to it as "Thermalize".
Have you tried that in a google search?

73,
Don W3FPR

On 1/28/2018 11:43 AM, Robert 'RC' Conley wrote:

Elecraft web site is the best source of information
What is the actual designation of heat strip able (thermalize) magnet wire

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Re: [Elecraft] Who would spend 30 hours+ building an Elecraft K2? (plus: special pricing)

[Alan Slusher]

Slowly, ever so slowly over the years, I shifted from QRP CW, mostly with
the K2, to 100w SSB, with the K3 and a couple of other rigs, operating only
on a couple of SSB nets.
And then I read Wayne's post.  And the responses.
And looked at the K2 on the desk, connected but unused, gathering dust.
So last night I fired it up, in these poor propagation days, and running CW
on 40m at just under 5w on the meter into an inverted V, snagged AE4YP in
FL, K3Y/1 in NH, and shortly after, K3Y/0 in CO.  This morning I heard
K3Y/9 - very weak - but he did not copy me, and I refused to turn up the
power.

Thanks, Wayne.

Alan V31FA (Belize)

On Sat, Jan 27, 2018 at 8:19 PM, Neil Zampella  wrote:

> Wayne,
>
> I've been trying to convince SWMBO that I need something to keep me busy
> now that I'm semi-retired, I almost have her convinced that my building a
> K2 would do it, but I noticed that the pricing lasts until Jan 31st.   Are
> you thinking about a Valentine's Day sale too ???
>
> 73
>
> Neil Zampella, KN3ILZ
> Happy KX3/KXPA100/PX3 owner
>
>
> On 1/26/2018 6:16 PM, Wayne Burdick wrote:
>
>> Who would spend 30 hours+ building an Elecraft K2? Well, me, for one.
>> I built the very first K2, not long after Eric and I sketched out the
>> design on napkins right in the middle of Field Day at Henry Coe state park.
>> (Some claim this is mythology, but I was there :)  That first unit wasn’t
>> even painted, and we had yet to design the option modules.
>>
>> Since then, nearly another 8,000 times someone else has asked that same
>> question, concluding that the answer was “yes." It’s worth asking why.
>>
>> Features?
>>
>> The K2 is very light in weight for an all-HF-band/multi-mode
>> desktop-style rig (3 lbs). The transmitter puts out 15 watts (100 W with
>> the bolt-on KPA100 top cover), and the receiver has been proven
>> crunch-proof over many subsequent Field Days.
>>
>> Is that why this little radio--our first product--just refuses to become
>> obsolete?
>>
>> Maybe it's the crisp sound of the 100% analog superhet RX strip. Or the
>> continuously tunable, variable-passband 4.9 MHz crystal filter. Or the
>> blazingly fast break-in CW.
>>
>> Could it be ease of operation? The K2 has only the most essential
>> controls--excellent for first-time users--and an embarrassingly small
>> number of menu entries compared to most modern rigs.
>>
>> But when I think back on it, now, I believe the real reason for the K2’s
>> popularity must be that it’s fun to build. Not just fun, but rewarding:
>> transforming several bags of carefully labeled bagged components and
>> hardware into a complete ham transceiver, then putting it on the air.
>> (Somewhere I have a logbook page that says “First QSO on prototype K2!”
>> that I should frame. It was a unique experience.)
>>
>> Speaking of parts, 100% of those used in the K2 have leads. There’s
>> nothing wrong with surface mount construction, but leaded parts are easier
>> to handle, harder to lose, and more clearly labeled. This makes for a
>> reassuring, enjoyable assembly process, even if you’ve had just a little
>> prior experience building.
>>
>> What got me started on this email was a quick browse through some of the
>> over 300 reviews of the K2 posted on eHam.net:
>>
>> http://www.eham.net/reviews/detail/117
>>
>> The enjoyment and pride of building really shines through. This is why
>> Eric and I started the company in 1998, and it’s why we still offer the K2
>> only as a full kit. (Yes, you’ll need a good soldering iron. Our tech
>> support team will be happy to recommend one if you’re shopping around.)
>>
>> Many customers have teamed up with their kids or grandkids on the build.
>> In my book, this beats letting them binge-watch Netflix all weekend. Even
>> if your co-builders aren’t hams (yet), they’ll have great fun helping you
>> identify and install parts.
>>
>> That, in fact, is pretty easy. One of the best things about the K2 is the
>> assembly manual:
>>
>> http://www.elecraft.com/manual/E740001_K2%20Owner%27s%20Manu
>> al%20Rev%20I.pdf
>>
>> The manual is written in tutorial style, including finer points like the
>> resistor color code, photos of all parts and modules, and detailed signal
>> tracing/troubleshooting instructions. The manual has been refined to the
>> point that it’s virtually foolproof. Of course if you have any
>> difficulties, you can always ask a question on the Elecraft reflector, day
>> or night, or check in with customer support.
>>
>> For those of you who are just now thinking about tackling the K2, we’ve
>> decided to sweeten the deal a little. Consider it an early Valentine’s
>> gift. You can find our K2 specials near the top of this page:
>> http://www.elecraft.com/elecraft_prod_list.htm
>>
>> I’ll leave you with this photo of two early production K2s. It was taken
>> in 1999 from inside a VW van I used to own (the radio is reliable, the van
>> wasn’t). S/N 2, in the foreground, was being operated by 

Re: [Elecraft] K2? Easy peasy

[Jim Brown]

I'll poke around and try to find my notes.

73, Jim

On 1/27/2018 10:48 PM, Don Wilhelm wrote:
I do indeed have that mod, but I thought it was mainly for Low 
Frequency rolloff.  I do know that it works quite well for that 
purpose, but I don't know about the 6 dB gain.


Change C34 to 0.47uF, and change C32 to something in the range of 
0.003uF to 0.005uF.



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Re: [Elecraft] Fw: KPA500 Power out query.

[AJ8MH-Radio.Joe.Hutchens]

My amp is close to 7 years old and 20 has always required more drive.  
27 to 30 watts on all bands except 20 where I'll run it up to 35 in a 
pinch. Elecraft suggested I send it in, but I haven't let the smoke out, 
yet.  Unlike your issue, I see a change when I increase drive. I drive 
the amp with either a Yaesu FT-950 or a FTDX3K.  ALC is not wired.  
There is a modification kit out for the amp, but have no idea what it 
addresses.


Also, heat causes some stress on the chassis and you'll here pings as it 
flexes with temp.  The first time I heard that, it scared the heck out 
of me.  I believe there is a fix for that, too.


Joe
( www.aj8mh.com )

On 1/28/2018 10:57 AM, Mike Streeter via Elecraft wrote:

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[Elecraft] (OT) magnet wire

[Robert 'RC' Conley]

Elecraft web site is the best source of information
What is the actual designation of heat strip able (thermalize) magnet wire
RC KC5WA
.
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Re: [Elecraft] My radio all of a sudden is so loud it blew a speaker!

[Barry]

Tom,
I can't explain the cause of what's happening. Rob and I ran into 
some craziness last weekend with power out and the antenna tuner. We 
fixed the symptom, but have been unable to trace the cause. In my case, 
I'm willing to swear that RF got in and corrupted the matrix of L and C 
values stored in the radio's memory, but I can't reproduce the symptom. 
What Rob suggested was to store off the radio settings using the 
utility, doing a reset, and put the setting back. That seems to have 
fixed the problem, so far. What is crazy is that of the set of K3 owners 
around us, only Rob and I seem to have had a problem. In the about 2 
years I've used my K3s, there has never been a hint of anything like 
this.


73,
Barry
K3NDM

-- Original Message --
From: "tomb18" 
To: "Barry" ; "Elecraft" 
Sent: 1/27/2018 7:24:54 PM
Subject: Re: Re[2]: [Elecraft] My radio all of a sudden is so loud it 
blew a speaker!



Hi
Yes but it's weird that never arose in the past.
The one thing that IS different this time is that the radio had a full 
power down. Not just the front panel

73 Tom



Sent from my Samsung Galaxy smartphone.

 Original message 
From: Barry 
Date: 2018-01-27 7:12 PM (GMT-05:00)
To: Tom , Elecraft 
Subject: Re[2]: [Elecraft] My radio all of a sudden is so loud it blew 
a speaker!


Tom,
 Something comes to mind. Go into the setup menu and check the AGC
threshold. As you move it up in number, the audio output goes up, and 
it

takes a greater signal amplitude before it "kicks" in. I usually use
this when using data A to prevent AGC capture, or at least as much, by
other signals in the passband, for instance FT8 with a received
bandwidth of 2.5KHz. Normally, the K3 AGC is excellent and should have
prevented what you describe unless the the AGC threshold is too high.

73,
Barry
K3NDM

-- Original Message --
From: "Tom" 
To: "Elecraft" 
Sent: 1/27/2018 6:24:40 PM
Subject: Re: [Elecraft] My radio all of a sudden is so loud it blew a
speaker!

>Hi,
>No the AGC is On.  It's still overall several times higher than I have
>ever heard when in High.
>That's very strange since I always had it at high and when I first
>checked it was at High.
>So now if I put it to low is is as it has always been. Putting it at
>high with AGC off, I will now blow any speaker attached!
>Tom
>
>
>-Original Message- From: Dave Hachadorian
>Sent: Saturday, January 27, 2018 5:43 PM
>To: Tom
>Subject: Re: [Elecraft] My radio all of a sudden is so loud it blew a
>speaker!
>
>Did AGC get turned off?
>
>-Original Message- From: Tom
>Sent: Saturday, January 27, 2018 3:13 PM
>To: Elecraft
>Subject: [Elecraft] My radio all of a sudden is so loud it blew a
>speaker!
>
>HI,
>Ok a strange thing happened today.  I was moving my K3 from one
>rack to another and once everything was connected up I turned it
>on. Now I use an external speaker and the volume was so loud that
>it blew.  I immediately turned down the volume and went to the
>speaker in the K3.  Barely touching the volume control resulted
>in such a high volume level that I was afraid the speaker would
>blow there too!.
>I checked the menu setting for the AF Gain and it was set to high
>which I have always used since I found the audio out of the K3
>was too low for me.
>Now, I’ve had to put it at low and it seems that it is now back
>to the way it was.
>So is it really that loud on High and why would I have not seen
>this before?
>Thanks, Tom
>va2fsq.com
>
>---
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[Elecraft] Fw: KPA500 Power out query.

[Mike Streeter via Elecraft]

 

   - Forwarded Message - From: Mike Streeter To: 
elecraft...@yahoogroups.com Sent: ‎Saturday‎, 
‎January‎ ‎27‎, ‎2018‎ ‎12‎:‎04‎:‎40‎ ‎PM‎ ‎CSTSubject: KPA500 Power out query.
 I am driving my KPA500 with my K3 to a Mosley PRO 67. On every band except 20 
meters 25 watts out from the K3 will give me at least 500 watts out of the 
amplifier. On 20 meters I get 450 watts out with 25 watts drive but no increase 
even if I go to 40 watts out from the  K3. I have put a dummy load on the K3 
using the usual RG 213 and the SWR is 1:1, and I have checked the antenna with 
an MFJ 259, using the usual RG 213 cable and it is 1:1 at 14.000 up to 1.4:1 at 
14.350.I have loaded the latest firmware to both the K3 and the KPA. I realize 
that the difference between 450 and 500 watts is negligible but it bugs me that 
it is not giving me full power out on 20.Anyone have any ideas as to how to fix 
it?Many thanks, Mike, WM5DX.
  
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Re: [Elecraft] Re who would spend 30 hours building a k2?

[Don Wilhelm]

If you enjoy kit building, the K2 goes together one part at a time, just 
like any other kit.  Enjoy the process.


The K2 breaks the assembly into 3 major pieces and has an alignment and 
test section following each assembly section so you can check your work.


73,
Don W3FPR

On 1/28/2018 7:51 AM, W4EDN wrote:

I bought a used k2 and just spent 12 hrs building a Kant-100.
The k2 looks like a bigger challenge .
Mine had the 100w amp included.
Bill

Sent from my iPod
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Re: [Elecraft] K2? Easy peasy

[Don Wilhelm]

All,

On the KI6WX mod, the value of R9 should be 1.5k instead of 15k as 
stated. Please excuse my "late night fingers".


Those two resistor changes are only necessary if the KI6WX KSB2 mod is 
added to a K2 with the KPA100 installed.


73,
Don W3FPR



All,

I do indeed have that mod, but I thought it was mainly for Low Frequency 
rolloff.  I do know that it works quite well for that purpose, but I 
don't know about the 6 dB gain.


Change C34 to 0.47uF, and change C32 to something in the range of 
0.003uF to 0.005uF.


If you want additional gain, I would recommend the KI6WX KSB2 increased 
KSB2 RF Gain mod.  It adds gain without the possibility of overloading 
the Speech Compressor.  If you do that mod, change R9 to 15k and add a 
1k resistor between P1 pin 5 and the base of Q3.


73,
Don W3FPR
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[Elecraft] Re who would spend 30 hours building a k2?

[W4EDN]

I bought a used k2 and just spent 12 hrs building a Kant-100.
The k2 looks like a bigger challenge .
Mine had the 100w amp included.
Bill

Sent from my iPod
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