Major Flaw in the K3

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Major Flaw in the K3

Locherbob
I have found a really major flaw in the K3. It can be fixed with an
accessory but it will be very expensive. The flaw can be a great
frustration. Fortunately, I have been able to fully document what causes
it.

Here it is - the receiver hears entirely too well.

I am hearing all sorts of DX, particularly on 40 and 20 meters, where I
spend most of my time. I am hearing a lot of rare DX stations that no
one else is calling.

The frustration is that when I call them they can't hear me. Often not
at all, while at other times they try to get my call but do not manage
it. Just because they are S0 or S1 in the K3 is not an excuse; they are
solid Q5 copy. This is not a single isolated incident; this has happened
to me repeatedly. Of course, once these stations have K3's the problem
will probably go away; then they will be able to hear me. But in the
mean time this issue must be dealt with.

I see two possible solutions. One is to turn off the receiver preamp and
turn on the attenuator that Elecraft has so thoughtfully provided - this
makes me suspect that Wayne knew all along that this would be a problem
- the other is to add a 1500 watt solid state linear with built in
antenna tuner and full QSK. I suspect that this is the fix that Eric has
in mind.

73

Bob W9KNI



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Re: Major Flaw in the K3

N8LP
Congrats Bob. That is the most deftly worded query about the KPA1500 I
have heard! I thought you eschewed high power, though ;-) Because of the
K3, the old saying that "You can't work 'em if you can't hear 'em", may
have to be revised.

73,
Larry N8LP



Bob Locher wrote:

> I have found a really major flaw in the K3. It can be fixed with an
> accessory but it will be very expensive. The flaw can be a great
> frustration. Fortunately, I have been able to fully document what
> causes it.
>
> Here it is - the receiver hears entirely too well.
>
> I am hearing all sorts of DX, particularly on 40 and 20 meters, where
> I spend most of my time. I am hearing a lot of rare DX stations that
> no one else is calling.
>
> The frustration is that when I call them they can't hear me. Often not
> at all, while at other times they try to get my call but do not manage
> it. Just because they are S0 or S1 in the K3 is not an excuse; they
> are solid Q5 copy. This is not a single isolated incident; this has
> happened to me repeatedly. Of course, once these stations have K3's
> the problem will probably go away; then they will be able to hear me.
> But in the mean time this issue must be dealt with.
>
> I see two possible solutions. One is to turn off the receiver preamp
> and turn on the attenuator that Elecraft has so thoughtfully provided
> - this makes me suspect that Wayne knew all along that this would be a
> problem - the other is to add a 1500 watt solid state linear with
> built in antenna tuner and full QSK. I suspect that this is the fix
> that Eric has in mind.
>
> 73
>
> Bob W9KNI
>
>
>
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> Elecraft mailing list
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> You must be a subscriber to post to the list.
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>
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Re: Major Flaw in the K3

James1787
In reply to this post by Locherbob
Hmm, before I dumped money into a new amp I'd say take a look at the
antenna first. The antenna is always the first place to look to improve
your signal gettin' out.


-----Original Message-----
From: Bob Locher <[hidden email]>
To: [hidden email]
Sent: Tue, 4 Sep 2007 12:17 pm
Subject: [Elecraft] Major Flaw in the K3


I have found a really major flaw in the K3. It can be fixed with an
accessory but it will be very expensive. The flaw can be a great
frustration. Fortunately, I have been able to fully document what
causes it. 
 
Here it is - the receiver hears entirely too well. 
 
I am hearing all sorts of DX, particularly on 40 and 20 meters, where I
spend most of my time. I am hearing a lot of rare DX stations that no
one else is calling. 
 
The frustration is that when I call them they can't hear me. Often not
at all, while at other times they try to get my call but do not manage
it. Just because they are S0 or S1 in the K3 is not an excuse; they are
solid Q5 copy. This is not a single isolated incident; this has
happened to me repeatedly. Of course, once these stations have K3's the
problem will probably go away; then they will be able to hear me. But
in the mean time this issue must be dealt with. 
 
I see two possible solutions. One is to turn off the receiver preamp
and turn on the attenuator that Elecraft has so thoughtfully provided -
this makes me suspect that Wayne knew all along that this would be a
problem - the other is to add a 1500 watt solid state linear with built
in antenna tuner and full QSK. I suspect that this is the fix that Eric
has in mind. 
 
73 
 
Bob W9KNI 
 
 
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Re: Major Flaw in the K3

W2AGN-2
[hidden email] wrote:
> Hmm, before I dumped money into a new amp I'd say take a look at the
> antenna first. The antenna is always the first place to look to improve
> your signal gettin' out.
>
>
>

I am sure Bob really needed and appreciated that guidance, Novice that he is,
 ;-)  (extra BIG ;-)

--
John - W2AGN
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Re: Major Flaw in the K3

Scott Manthe-2
I know he's got a real nice G5RV up about 15 feet, so I'm sure he's good
to go.

W2AGN wrote:

> [hidden email] wrote:
>  
>> Hmm, before I dumped money into a new amp I'd say take a look at the
>> antenna first. The antenna is always the first place to look to improve
>> your signal gettin' out.
>>
>>
>>
>>    
>
> I am sure Bob really needed and appreciated that guidance, Novice that he is,
>  ;-)  (extra BIG ;-)
>
>  
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RE: Major Flaw in the K3

Fred N. van Kempen
In reply to this post by Locherbob
Bob,

Dang those engineers at Elecraft.  This problem already
existed in my K2... you'd assume they had found and fixed
the problem by now, right?

My shack buddy basically laughs at me, as he doesn't have
this problem.  "Fred, you're hearing things that arent even
there, so please stop yapping at the mike", he then grunts,
whilst going back to his TS-480HX.  And indeed, I dont hear
HIM calling reply to DX, so.... he may be right!

Either my K2's finals are gone, or Im hearing DX ghosts :)

73 de Fred























































Yeah, this was a joke.  It's known that the K2/100 hears
about 10 times more than what it "can work", so Bob's
assumption about the kilowatter is about right, as far
as my experience goes. :P

--f

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bob Locher
Sent: dinsdag 4 september 2007 18:17
To: [hidden email]
Subject: [Elecraft] Major Flaw in the K3

I have found a really major flaw in the K3. It can be fixed with an
accessory but it will be very expensive. The flaw can be a great
frustration. Fortunately, I have been able to fully document what causes

it.

Here it is - the receiver hears entirely too well.

I am hearing all sorts of DX, particularly on 40 and 20 meters, where I
spend most of my time. I am hearing a lot of rare DX stations that no
one else is calling.

The frustration is that when I call them they can't hear me. Often not
at all, while at other times they try to get my call but do not manage
it. Just because they are S0 or S1 in the K3 is not an excuse; they are
solid Q5 copy. This is not a single isolated incident; this has happened

to me repeatedly. Of course, once these stations have K3's the problem
will probably go away; then they will be able to hear me. But in the
mean time this issue must be dealt with.

I see two possible solutions. One is to turn off the receiver preamp and

turn on the attenuator that Elecraft has so thoughtfully provided - this

makes me suspect that Wayne knew all along that this would be a problem
- the other is to add a 1500 watt solid state linear with built in
antenna tuner and full QSK. I suspect that this is the fix that Eric has

in mind.

73

Bob W9KNI



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Re: Major Flaw in the K3

Leigh L. Klotz Jr WA5ZNU
Administrator
In reply to this post by James1787
And when you do finally work them you can send RST 519.
73,
Leigh/WA5ZNU
> From: Bob Locher <[hidden email]
> The frustration is that when I call them they can't hear me. Often not
> at all, while at other times they try to get my call but do not manage
> it. Just because they are S0 or S1 in the K3 is not an excuse; they are
> solid Q5 copy._______________________________________________
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Re: Major Flaw in the K3

Tom Hammond-2
In reply to this post by N8LP
At 11:27 09/04/2007, Larry Phipps wrote:
>Congrats Bob. That is the most deftly worded query about the KPA1500
>I have heard! I thought you eschewed high power, though ;-) Because
>of the K3, the old saying that "You can't work 'em if you can't hear
>'em", may have to be revised.

The corollary is, "You can't work 'em if they can't hear YOU".

Cheersm

Tom   N0SS

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RE: Major Flaw in the K3

Kenneth Moorman
In reply to this post by Locherbob
I have this problem now with my K2!

Ken, NU4I

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bob Locher
Sent: Tuesday, September 04, 2007 12:17 PM
To: [hidden email]
Subject: [Elecraft] Major Flaw in the K3

I have found a really major flaw in the K3. It can be fixed with an
accessory but it will be very expensive. The flaw can be a great
frustration. Fortunately, I have been able to fully document what causes
it.

Here it is - the receiver hears entirely too well.

I am hearing all sorts of DX, particularly on 40 and 20 meters, where I
spend most of my time. I am hearing a lot of rare DX stations that no
one else is calling.

The frustration is that when I call them they can't hear me. Often not
at all, while at other times they try to get my call but do not manage
it. Just because they are S0 or S1 in the K3 is not an excuse; they are
solid Q5 copy. This is not a single isolated incident; this has happened
to me repeatedly. Of course, once these stations have K3's the problem
will probably go away; then they will be able to hear me. But in the
mean time this issue must be dealt with.

I see two possible solutions. One is to turn off the receiver preamp and
turn on the attenuator that Elecraft has so thoughtfully provided - this
makes me suspect that Wayne knew all along that this would be a problem
- the other is to add a 1500 watt solid state linear with built in
antenna tuner and full QSK. I suspect that this is the fix that Eric has
in mind.

73

Bob W9KNI



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Re: Major Flaw in the K3

Don Wilhelm-4
In reply to this post by Locherbob
Bob,

I certainly hope you do not make holes in your tongue after placing it
firmly in your cheek.

73,
Don W3FPR

Bob Locher wrote:
> I have found a really major flaw in the K3. It can be fixed with an
> accessory but it will be very expensive. The flaw can be a great
> frustration. Fortunately, I have been able to fully document what
> causes it.
>
> Here it is - the receiver hears entirely too well.
>
> snip...
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