Re: [Elecraft] My KX2 may be sick

[Paul Smith]

Thanks Dave, I have the KXPD2 paddle but do not use it much as I am a straight 
key guy or bug.

Thanks

de Paul N0NBD


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From: Dave New, N8SBE 
Sent: Wednesday, September 26, 2018 8:43 PM
To: Paul Smith; elecraft@mailman.qth.net
Subject: RE: [Elecraft] My KX2 may be sick

Paul,

Check your KXPD3 keyer paddle.  It turns out that early versions had screw 
heads that were a bit too long that stuck out the back side of the paddle 
housing, causing a short to the chassis, if the heads bit through the black 
paint.

I have one of these, and it worked fine until the screw head on one side 
managed to work itself through the paint, then suddenly I was getting ERR KEY 
on power up.  Elecraft service has shorter screws to fix the issue.  I just put 
a small patch of black tape on the bare metal chip location under the paddle 
housing, and all is OK.  Some day I may ask for the modified screws (or paddle, 
if it has to be replaced as a unit).  Fixing the chip in the black housing is 
another matter entirely.  Shame it happened on a practically brand new radio.

73, hope that helps,

-- Dave, N8SBE
 Original Message 
Subject: Re: [Elecraft] My KX2 may be sick
From: Paul Smith mailto:n0...@outlook.com>>
Date: Tue, September 25, 2018 1:49 pm
To: "elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net>" 
mailto:elecraft@mailman.qth.net>>

Thanks guys for the words on my KX2. I was watching the volt meter I have on 
the power supply. It dropped to 13V when I keyed the rig then shot up to 13.9 
and sat rock solid. I changed power supplys and all is well now. The little 
radio seems to be happy again. And Thanks Don for the advice on NOT sending the 
rig in. I will check my cables as well, tnx all de N0NBD Paul Smith

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Re: [Elecraft] My KX2 may be sick

[Paul Smith]

Thanks guys for the words on my KX2. I was watching the volt meter I have on 
the power supply. It dropped to 13V when I keyed the rig then shot up to 13.9 
and sat rock solid. I changed power supplys and all is well now. The little 
radio seems to be happy again. And Thanks Don for the advice on NOT sending the 
rig in. I will check my cables as well,   tnx all de N0NBD Paul Smith

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[Elecraft] My KX2 may be sick

[Paul Smith]

Last night after working a couple SKCC guys on 3550 my KX2 just shut down and 
said on the display err key. I could not get it to do anything so I sent the 
configure file to it. It seemed to be ok but shut down again a few minutes 
later. It has done the same thing twice this morning. A cheep led volt meter 
reads that the power supply drops to 13.6 volts while transmitting. What the 
heck do I need to look for or is my radio number 855  wanting a roadtrip to the 
home factory?

Thanks in advance de Paul N0NBD


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[Elecraft] Mic wiring for K2

[Paul Smith]

I ordered and received a MH4 for my K2. The instructions show the schematic of 
mic wires at J1 and enclosed are little jumpers. Where is J1 and how does a guy 
get to it?

Thanks in advance de Paul N0NBD


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Re: [Elecraft] Question about my KX2

[Paul Smith]

Ok Thanks for the things to check. I will do this in the morning.

Thanks

Paul Smith N0NBD


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From: elecraft-boun...@mailman.qth.net  on 
behalf of David Shoaf 
Sent: Wednesday, August 16, 2017 12:03 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Question about my KX2

Paul,  eliminate some of the variables to isolate the problem:

- Use a dummy load and step through the KX2 bands to be sure it can transmit
directly into it.  Use the TUNE button to get that done.  Make sure the
internal antenna tuner is set to BYP mode.

- Then, add in the transmission line with the dummy load terminating it.
Remove the hand-built balun to do this so you're testing the line only.

- Then, add in the balun and retest on all bands but connect it directly to
the KX2 and terminate the other end with a dummy load.  This allows you to
test it by itself.  It better read 1:9 or 9:1 depending on how it is
connected.

- Lastly, add the transmission line and the balun together and then connect
the dummy load to the output of it.  Be sure you're stepping through all the
bands when you do this, too.

As you can see, isolating the items will help you determine where, if any,
there's a problem.  It isn't appropriate to jump to conclusion - yet -
there's a problem with the KX2.   Eliminate all that is known to work
properly and you'll have your answer.

Cheers,

David



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[Elecraft] Question about my KX2

[Paul Smith]

I have and love my KX2 serial number 855. Lately the ATU seems to be "turning 
loose of the setting" I usually can hit the tune button again and get it to 
tune. I use a doublet at 50 ft fed with 450 ohm line and a home brew balun/ 
Unun. I question the balun as when I ordered,  the wrong cores came and I wound 
the balun which was supposed to be a 9:1.

This may not be enough information but the manual has not offered me much as I 
have done some reading.

Any thoughts out there? Does it need to go to California to be looked into? 
This is my first ATU.

 Thanks in advance de Paul Smith N0NBD


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[Elecraft] KX2 receive problems solved

[Paul Smith]

I wanted to thank Wayne and the list for the suggestions on my KX2 receive 
problem.

I spent an hour on the phone with a ham in Tulsa. We went through the menu 
settings, I had a few set kinda wonky.All seems to be fine now and makinbg 
contacts. Thanks for the fine support.

de Paul Smith N0NBD


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[Elecraft] More KX2 recieve questions

[Paul Smith]

I called the 4SQRP net tonight on 3564. I had my KX2 for a transmitter and my 
old tribander for receive. Here is what things are set at.

As I was instructed earlier the pre amp was on although the word pre on the 
screen went off 4 times during the net and the button took a couple taps to get 
the pre back on the screen. Is this normal?

The BW is at 2.80

RF gain is 0

NR is off

the APF is off when the button is held a narrow filter kicks in.

I am ocnfused what to do and or to look for. I could hear checkins on my 
Tribander and not a peep heard on the KX2

The antennas as before were 102 ft doublet and a zepp

Any ideas what to check next?

Thanks

de PAul N0NBD


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[Elecraft] KX2 Receive problem!?

[Paul Smith]

I have a KX2 nr 855 I bought in August.This is my first venture in in a 
sophisticated radio. I have been operating kit built rigs for years. My KX2 has 
the latest firmware  MCU revision 02.69.

The receive seems to be down quite a bit. My antennas are a 102 ft doublet at 
50 ft and a Zepp at 50 feet. Each fed with 450 ladder line. On the 4SQRP nets I 
have been frequently been told they can hear me and I hear NO ONE.

The question is could someone share the setup information with me for filters 
and such. My ears do not require much filtering as my old ELMER used to YELL at 
me use the filter between ur ears. I have made some contacts but I would like 
to hear more.

Thanking in advance de Paul N0NBD


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[Elecraft] Weird startup

[Paul Smith]

I am not sure what my KX2 has been doing but it seemed "deaf at times" I have 
operated nothing but the simplest kit built rigs for 15 years so the KX2 has a 
bunch of stuff Im not sure of yet.

I just this morning upgraded the software to the latest version. It seems to 
hear really well I worked a guy in TX and he was gangbusters at 5 watts. Thanks 
Wayne and Eric for a great radio and easy fixes.

de Paul N0NBD


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[Elecraft] New KX2 Arrived

[Paul Smith]

The UPS truck delivered my new KX2. I have been reading and playing. This is a 
BLAST!
Thanks
de Paul N0NBD 
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[Elecraft] Toroid winding

[Paul Smith]

Hi all

A question regarding the winding of a broadband transformer for a QRP tuner for 
my K1:
Does it matter where a primary winding is located along the circumference of 
the secondary ? Will it make any difference if the primary is closer to one 
terminal of the secondary or not ? I have a 47T secondary which occupies about 
220 degrees of the core and the primary is just 4T in total.
Many thanks,
Paul 
ZS2OE
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[Elecraft] K-1 Filter board for sale

[Paul Smith]

Hi
I have a 2 band filter board for the K1 in perfect condition and expertly built 
(even if I say so myself !).
Reason for the sale is an impending upgrade to the 4-band version. Bands 
covered are 20 and 15m.
You can reach me at [EMAIL PROTECTED]

Paul Smith
ZS2OE

K1 # 1581
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