Re: [Elecraft] K3 Headphones

2010-05-28 Thread Art K6XT
I've had Sennheiser HD400 for many years (long since out of production 
but there is a newer model). These are very light. I've also the Heil 
Proset noise cancellers. The Proset and any other can-style headphone 
I've ever used just kill my ears after a while, like in a contest. The 
HD400's are better but still, eventually after 4 hours or so I have to 
take them off.

I bought a set of Sennheiser CX300-II earbuds on ebay new for $35, some 
special. I think they're regularly $50. These have excellent sound 
quality as one expects from Sennheiser. They're noise blocking, nearly 
as good as the Heil noise cancellers. And they completely solve the long 
term ear pain issue. I can wear them all day (or night) without any 
discomfort.

I set the K3 AF Gain to Low and the AF LIM to 20.

Highly recommended!

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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Re: [Elecraft] K3 - SR2O

2010-05-27 Thread Art K6XT
Chris:
You do have Config: L-Mix-R set to A on one side, B on the other?  
(A   b) That should put one rx on the tip, the other on the ring. It 
does on mine.

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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Re: [Elecraft] Elecraft Digest, Vol 72, Issue 5

2010-04-02 Thread Art K6XT
Maarten
Stroke can mean many things. Stroke of a hydraulic piston. Stroke of 
an engine piston. Stroke as in medical condition. Stroke as in pull on 
the oars in a boat. Stroke of a pencil. English is obfuscatory.

Stroke has been used on the bands for as long as I've been a ham which 
is many years. Anyone who calls you on it is him(her)self the idiot. As 
you know in English stroke is but one syllable. Portable is three 
(Port--a--ble), wasting lots of your time and effort to pronounce it. 
And adds absolutely nothing to intelligibility. Pleasecontinue to 
sign OZ Stroke PD2R.

73 Art K6XT, K6XT Stroke NH9

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

The last two weeks of May I will be staying in Denmark and of course I'll
 take my K3 with me. Normally there's not much time to play with the radio
 but during these two weeks of vacation I will have some time to have some
 fun on the bands.
 Now, it's not the first time I've been in OZ but recently I discovered
 that
 I may have pronounced the / incorrectly. During previous visits I used
 to
 say Oscar Zulu Stroke Papa Delta Two Romeo.
 But I noticed the NA stations pronounce the / as portable. After
 realizing that stroke means a very bad condition involving the loss of
 brain function, it sure sounds stupid.
 So I guess I should say Oscar Zulu Portable Papa Delta Two Romeo, am I
 right?

 I know it's a bit OT but I don't want to sound like an idiot anymore  ;-) 

 73, Maarten
 PD2R

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Re: [Elecraft] K3 Keying Up For A Split Second When Power Button, IsPushed (Tom W8JI)

2010-04-01 Thread Art K6XT
It is not normal behavior for my K3. The red tx light comes on for a 
split second but there is no amp keying or RF output.
73 Art

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

Message: 51
Date: Thu, 1 Apr 2010 07:50:22 -0400
From: Tom W8JI w...@w8ji.com
Subject: Re: [Elecraft] K3 Keying Up For A Split Second When Power
Button  IsPushed
To: -.-.  --.-N3TU -.-.  --.- connectme...@hotmail.com,
elecraft@mailman.qth.net
Message-ID: b545db30c1794028b301fbf152f95...@radioroom
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original

Is it normal for the K3 to key up right away for a split 
second when turned
on. I have a Drake L4B with a soft key behind the radio. If 
by accident the
amp is out of the  stand-by mode and you turn on the K3, it 
will key the amp
for a split second. Is this normal? Don't get me wrong, I 
try to put it in
standby but every now and then I'll forget. 

That's normal behavior for the K3.

I don't like it either, but a properly designed step-start 
should still be OK with just the quiescent current of the PA 
tubes so long as RF is not applied. The only problem would 
come in when the step-start and the radio both have issues. 
If the step-start isn't planned well, and blows a fuse or a 
resistor when starting under quiescent current loads, then 
the radio doing closing the relay line at power-on  becomes 
a problem.

As a suggestion you could easily build a time-delay start up 
for the amp, which it should have if simply closing the 
relay control line at amplifier power-on causes damage. 
You'd have to add a small relay and wire it in series with 
the relay control jack.

My amplifiers start just fine at quiescent loads, so I don't 
worry (although what you observe annoys me too and I can see 
where it could cause step-start damage in some systems).

73, Tom

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[Elecraft] KTCX03-1 FS

2010-04-01 Thread Art K6XT
Selling this unit for $90 shipped CONUS no insurance priority mail. Good 
working order. Ended up with 2 TXCO, 1 K3. Email k6xt at arrl dot net. 
UPS, insurance etc available at buyer expense. Check, postal MO, Paypal 
OK if you pay seller fee.

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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Re: [Elecraft] K3 dumb Q about PPM

2010-04-01 Thread Art K6XT
Gents
Lots of confusion about oscillator specs. Allow me to add more.

Specs on TXCO's are given at specific conditions. Deviate from those 
conditions and the spec does not apply. In deviating conditions one must 
review the manufacturer's spec sheet to discover how the TXCO will respond.

The PPM spec only refers to long term drift, as defined in the 
manufacturer's specifications. It has no bearing to short-term changes 
in room temperature as suggested in some of the posts. Again, see the 
manufacturer's specifications. This is exactly why the (for example) K3 
has a TXCO alignment procedure. So that a picky user can adjust the TXCO 
exactly on frequency under a specific set of operating conditions. 
Deviate from the alignment condition, the TXCO will respond by deviating 
from perfect alignment. The need to control temperature change and 
remove heat is exactly why industrial and military electronics are often 
in cold climate controlled spaces where the temperature never varies and 
the carbon units wear sweaters.

Lastly, for the newer folks, be happy. We hams used to be in the 
business of chasing each other up and down the bands as our oscillators 
wandered randomly about. Receiving station wanders one way, transmitting 
station wanders the other. Many newer folks may not even know what 
youp means. These days just about any rig worthy of the name newer 
than 20 years old is rock solid from turn on +1 minute. And quite a 
number, rock solid from turn on plus 10 seconds. Try that with the old 
Hallicrafters with the valve handwheel knobs where a sharp rap on the 
desk sent the rig five kHz up the band!

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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Re: [Elecraft] Elecraft Digest, Vol 71, Issue 43

2010-03-29 Thread Art K6XT
RS-232 isn't going away any time soon. Witness the large number of USB 
to COM converters, the large number of mobo's available with COM port, 
and the huge installed base of equipment. Wayne wrote a paper on why the 
K3 uses COM vs. USB. I use at least two different varieties. One model 
from www.byterunner.com and one from www.lonetworks.com. The 
lonetworks.com unit is purported to understand baudot RTTY although I 
haven't tried it because I use the actual COM1 on my PC for FSK. Rig 
control on either of these converters is flawless. This is like the 
money deal or the electrical outlet deal. There is no such thing as too 
many ports.

Not to say that USB isn't a good idea. It works fine, just like a COM 
port does, and connectorizing is more compact. OTOH USB cannot perform 
all the services the COM port does.

Bearing the above in mind and rewriting the last part of the complaint 
below a bit: I bought a handicapped computer that doesn't have a COM 
port because this model is too cheap to include that feature. So I'm 
going to fault Elecraft for choice of IO port.

73 Art


-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

John Ragle wrote:

  Does anyone know the nature of the K3 USB - COMM adapter sold by 
  Elecraft? I cannot find anything in the Elecraft literature about it 
  (other than the price, of course). For example:
 
  Does it come with a pre-defined COMM port number?
  A settable COMM port number between 1 and 10?
  A settable COMM port number which may be anything (e.g. 17 or 25 or...).
 
  How do driver software programs/suites such as DigiPan, FLDIGI, HRDeluxe 
  recognize this adapter (if at all)? [Some software will not recognize 
  ports above 10, while other programs are more relaxed about such things.]
 
  Can the adapter be used for CAT control?
 
  Any information would be useful.
 
  John Ragle -- W1ZI
 
  P.S. Grumbling about the fact that RS-232 is still being used when long 
  obsolete...grumble grumble grumble...USB-2.0 on a chip...etc.

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Re: [Elecraft] K3 options input sought

2010-03-27 Thread Art K6XT
David
The onboard tuner is pretty handy and fast tuning. I have a couple 1KW 
size outboard manual tuners but still use the K3's often. If you don't 
contest much and don't plan to record off the air the KDVR3 might be 
overkill. Last I heard, KDVR3 won't stream rx audio to an external 
device such as your PC's HDD.

The tuner, btw, is only useful for impedance matching. Its an L section 
which will not attenuate harmonics.

73 Art

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

David wrote:
From: david beckwith david.beckw...@att.net
Subject: [Elecraft] K3 options input sought
To: elecraft@mailman.qth.net
Message-ID: 977804.36998...@web82101.mail.mud.yahoo.com
Content-Type: text/plain; charset=iso-8859-1

I am upgrading the shack from a K2 to K3. I have a nice Palstar tuner and an 
ACOM amp.? I am mostly a SSB guy, not big on contests or FM.? Given these 
resources and needs my planned configuration for the new K3 is:
K3/100? KXV3A IF Out and RX Ant.?General?coverage RX bandpass ?KDVR3-DVR? KUSB 
500 Hz 5pole CW filter and 6kHz AM/ESSB 8 pole filter.? Thoughts? Am I unwise 
for not including the internal ATU even though I have the Palstar? Thanks and 
73? Dave

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[Elecraft] WTB -- K3 2.7kHz 5 pole filter

2010-03-23 Thread Art K6XT
I want to buy a 2.7kHz K3 5 pole filter. Please reply to k6xt at arrl.net

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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[Elecraft] K3 components FS

2010-03-20 Thread Art K6XT
For sale
Filter Elecraft KFL3A-2.8K 2.8kHz BW 8 pole $88
Filter Elecraft KFL3A-6K 6kHz BW 8 pole $88
Filter Elecraft KFL3B-FM 13kHz BW 8 pole $88
KBPF3 general coverage module $98

All prices Shipped to CONUS parcel post no insurance. UPS and/or 
insurance on request at buyer's expense. Sorry no FedEx their service is 
a disaster out here.

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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[Elecraft] [Fwd: K3 components FS] **all sold

2010-03-20 Thread Art K6XT
All sold within 30 minutes of my original post this morning.
73 Art

 Original Message 
Subject:K3 components FS
Date:   Sat, 20 Mar 2010 09:23:26 -0600
From:   Art K6XT k...@arrl.net
To: elecraft@mailman.qth.net



For sale
Filter Elecraft KFL3A-2.8K 2.8kHz BW 8 pole $88
Filter Elecraft KFL3A-6K 6kHz BW 8 pole $88
Filter Elecraft KFL3B-FM 13kHz BW 8 pole $88
KBPF3 general coverage module $98

All prices Shipped to CONUS parcel post no insurance. UPS and/or 
insurance on request at buyer's expense. Sorry no FedEx their service is 
a disaster out here.

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.




-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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[Elecraft] CW filters

2010-03-20 Thread Art K6XT
Not sure how best to do this. My original K3 uses 250Hz 5 pole filters 
in main and sub rx. I love 'em. Now I've acquired a second K3 which came 
with a 400Hz 8 pole filter. Oh, what to do.

1. Put the 400 in Rig 1 main RX. Buy a second 400 for the sub RX to keep 
them the same for diversity (which I use all the time on 80 and 160).

2. Put the 400 in the main RX, leave the 250 in there for diversity, buy 
another 5 pole 250 for 2nd K3.

3. Don't do anything, the 8 pole 400 isn't that much better than the 5 
pole 250's in actual combat.

4. Sell the 400, get an 8 pole 250, recycle to step 1 above.

5. Option I haven't considered yet.

Watsa from you CW users?

-- 
73 Art
Allison, Colorado
Whether you believe you can do a thing or
not, you are right.  --Henry Ford.

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Re: [Elecraft] K3 - 'High Isolation Headphones'

2010-03-03 Thread Art K6XT
I was using a Heil Proset noise cancelling. These headphones cancel just 
about everything. Amp noise, XYL, doors, barking dogsyou name it. 
But. After a couple hours or so my floppy ears start to notice they're 
being compressed into my skull. Ditto my Sennheiser HD400 headset except 
these are much lighter so it takes a bit longer to get that squeezed 
feeling.

Seeking a solution I tried Sennheiser CX300-2 button phones, about $30. 
That is the solution for long term use! Noise blocking is excellent, 
just behind the ProSet. No squeezed ears. Excellent audio quality. 
They're a bit more sensitive than either headset so I turned the K3 to 
low audio. I also reduced the max audio clipping level in the K3. What a 
difference! Should have done this 30 years ago.

73 Art
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