Hi I was wondering if anyone has any experience with indoor antennas? I plan to
present at Dayton and would like some hints as to how this works. You can
contact me off list please.
73 Tom
va2fsq.com
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Ed,
If it ain't broke, don't fix it. The most probable controls to wear
out are the AF gain and the RF gain, and if you use it a lot, the RIT
control. Wait until they get scratchy and then replace.
Rather than trying for a temporary fix with DeOxit or other compounds, I
suggest you simply
Hi Tom,
I agree that for QRP magnetic loops are not bad. Dipoles in the Attic
or room also work.Get hold of RSGB book from ARRL, Stealth Antennas by
Steve Nichols G0KYA. This book is most informative.
I like the AlexLoop but you must keep it away from metal.I have used
these
Hello,
I sometimes run a 6ft diameter magnetic loop inside.. Works pretty well. I have
also had good luck with a Buddistick clamped to a coffee table! Power is
usually 5W, always CW. The problem is to keep people away from the antennas,
especially the magnetic loop.
Gil.
--
PGP Key:
On 2/10/2015 9:27 PM, John McBee wrote:
I was getting this error from the kxr3 menu when changing from ATU
port to BNC port I have gotten this error a few times since I have
installed the kxr3. But all usually works. The book said to try to
reload the dsp 1 firmware and dsp2 firmware, so I
I was getting this error from the kxr3 menu when changing from ATU port
to BNC port I have gotten this error a few times since I have installed
the kxr3. But all usually works. The book said to try to reload the
dsp 1 firmware and dsp2 firmware, so I opened up the k3 utility and
tried to
Brian,
I think Don, W3FPR, answered your question. FYI, My K2 and SSB is a fairly
early model from 2001. I did not like the bandwidth and changed it to 2.5khz
early on. I believe this was a mod from KI6XX. Don't have those notes handy.
Always got many unsolicited good audio reports for many
This did not cure all of the problem. with a dummy load at the bnc ATU TUNE
gives a 1.1-1. TUNE gives a 1.3-1. Why are they different ?
Looking at the HR50 amp with an analyzer shows 1.3-1, but when I transmit I
get a 2.1-1 on the KX3. Why is this different ? Amp works fine. KX3 works
fine. They
Thanks Don, Jim and George. I would guess that any method that shapes the
audio would have the same desired effect i.e. different mic element, equalizer,
etc.
Brian
KB1VBF
Sent from my iPad
On Feb 10, 2015, at 1:54 AM, Don Wilhelm w3...@embarqmail.com wrote:
Those mods are not 'official
On 2/10/2015 6:36 PM, Joel Black wrote:
Package is sold. Thanks for all the inquiries.
73,
Joel - W4JBB
On Feb 10, 2015, at 5:46 AM, Joel Black joel.b.bl...@gmail.com wrote:
Updated price is $1350 +shipping from my address at QRZ.com http://qrz.com/.
If the shipping + insurance is over $25,
Thanks, Don. That is what I was figuring too, but I wanted another pair of
eyes on it! The TIK2 uses both the 8R and 8T lines - typically 8R is used for
transverter PTT, while 8T is (optionally) used to switch the bias to the K2 PA
to ensure it stays off when using the transverter. I think
Before Ed cuts traces on his K2 -- he said the serial number was above
3000, so it already has those wiring changes embedded on the board.
73,
Don W3FPR
On 2/10/2015 12:13 PM, Phil Wheeler wrote:
Ed, If you're noticing some scatchiness in the AF gain, there is a
better way to deal with that
Just did the newest firmware update to the KX3, No change in the SWR problem.
Waiting on a reply from Elecraft.
73, Bill, WD8JWJ
--
View this message in context:
http://elecraft.365791.n2.nabble.com/KX3-SWR-tp7598124p7598146.html
Sent from the Elecraft mailing list archive at Nabble.com.
When I can't find something I generally figure some idiot probably left
it right where I left it.
:=)
Alan N1AL
On 02/09/2015 10:43 PM, Don Wilhelm wrote:
Lynn,
You will find it someplace you have not yet looked:-) . Happy hunting.
73,
Don W3FPR
On 2/9/2015 9:53 PM, Lynn W. Taylor,
Must be something I am missing here, your going to present at Dayton a
talk about
indoor antennas and have no experience using them?
Maybe something lost in the translation I missed.
73 Merv K9FD/KH6
Hi I was wondering if anyone has any experience with indoor antennas? I plan to
present at
Hi,
No I am presenting a software package and would like to show some signals on
the K3 indoors at Dayton. So the antenna has to be small. Transmit not
necessary!
Thanks
-Original Message-
From: Merv Schweigert
Sent: Tuesday, February 10, 2015 11:56 AM
To: elecraft@mailman.qth.net
Thanks for all the suggestions. Should be good enough. I like the whip.
73's Tom
On Feb 10, 2015 12:23 PM, Merv Schweigert k...@flex.com wrote:
Gotcha Tom, thanks, it did not come through like that.
Should be a number of guys on here using small indoor antennas,
I used one for several
FWIW, I really don't have the answer, but I have had similar problems with
slightly increased SWR on the higher bands with other transceivers, and have
never worried about it. Have you checked the swr of your dummy load using
an external swr/watt meter or antenna analyzer? (using the same coax
For receive-only, you don’t need a resonant antenna. Stick a wire in the air.
Bypass the ATU so it won’t be a filter.
If you want to get fancy, use a right angle adaptor and stick something like
this on it. Though the loading coil isn’t needed for receive, but it is OK for
transmit.
Ed, If you're noticing some scatchiness in the AF
gain, there is a better way to deal with that --
if you have not already. I did the AF pot fix last
year in K2 #380 and it made big difference.
Info is here:
http://www.elecraft.com/Apps/K2_AF_pot/K2_AF_gain_app_note.htm
but this may have
Gotcha Tom, thanks, it did not come through like that.
Should be a number of guys on here using small indoor antennas,
I used one for several years in 2001 while living in a condo on the beach,
it was 44 foot of wire taped to the ceiling of the second floor condo, fed
with 300 ohm twin lead,
My K2 is also old now - 14 years I believe - and I don't use it that often
any longer. I notice that the pushbuttons need some exercising before they
work now. For instance no 7 and 8 (where I have CW stored for LA3ZA and 5nn
- yes, I'm a lazy CW operator!). Is there any cure for this - other than
I didn't see the intial post. Several years back I used to regularly
work eastern Europe QRP with a Heathkit 5 watter on 20 CW around
0500-0600 GMT. This used a 22' piece of hookup wire tacked in the
corner of the drywall and the ceiling running along the length of the
bedroom and excess
One more use for the KPBF3 is for use on the 600m band (not yet a ham
band but one can obtain an experimental license - see link,
below). The K3 will tune down to 490-KHz with pretty good
sensitivity if you have the KBPF3 and KXV3 transverter option to
connect Rx ANT in.
I have run under
Here is my solution to handling a wide split.
The KX3 has an excellent Sub Receiver function, however it is difficult to use
when the DX is weak and the locals are very strong, as is often the case here.
You may use the KX3 Macros and the KX3 Utility to your advantage with a PC and
a mouse.
Updated price is $1350 +shipping from my address at QRZ.com http://qrz.com/.
If the shipping + insurance is over $25, I’ll pay the difference and I’ll eat
the PayPal fee.
73,
Joel - W4JBB
On Jan 31, 2015, at 8:11 AM, Joel Black joel.b.bl...@gmail.com wrote:
Okay folks. I have had this KX3
Pretty sure of the dummy. Verified with the Analyzer flat as can be. Antenna
actually reads only 1.3-1 at the tested 10m freq with the Analyzer. KX3 says
1.8-1 no matter what. I am normally hooked into an HR50 and the KX3 ATU is
bypassed for this and should be. KX3 will tune down the 1.3-1 antenna
I heartily agree with all the comments praising the kind character technical
abilities, and magnanimous helpfulness of Don Wilhelm! Larry and I are lucky
to live a few miles away from Don and so have been able to meet him and benefit
from his help. YAY for Don!
Julie KT4JR
Recently when I switch on the power to our Kline (K3 P3 KAT500 KPA500) the
panadapter screen shows a blank black waterfall. After making sure that an
antenna is connected I changed bands and modes and behold, signals appeared and
were also present when I switched back to the original band/mode
Tom,
You might find out if signals can be heard within the arena - there
must be a lot of steel in the structure. I think Elecraft uses recorded
signals for their stand's display. Do not hold me to this but the likes or
Eric, Wayne or Don would know for sure.
73 Doug EI2CN
Try a dummy load. It should put out a good enough signal if you're receiver
is close.
73,
Tim - N3XX
- Original Message -
From: Tom tom...@videotron.ca
To: Merv Schweigert k...@flex.com; elecraft@mailman.qth.net
Sent: Tuesday, February 10, 2015 12:01 PM
Subject: Re: [Elecraft] K3:
The building is steel and almost impervious to RF. We had an external antenna
last year.
You can do a demo using inside signals, but they won't be very interesting
unless you plant stooges around the arena with QRP rigs.
Wayne
N6KR
On Feb 10, 2015, at 10:11 AM, Doug Turnbull turnb...@net1.ie
From my limited experience with trying to receive anything inside commercial
buildings, arenas, VFW halls, etc. it is nearly impossible and certainly
unsatisfactory. I have spent way too much time trying to get a signal that
I could use. For your demo, you might consider bringing a station to
In preparation for getting a KPA500 I have ordered the KAT500.
I also have the sub receiver (KRX3)
What I would like to do is to use ANT1 on the K3 to feed into the KPA500 and
KAT500.
Then reconfigure the AUX antenna on the SUB Receiver to use the ANT2 port on
the K3but I want to ensure that it
Wayne and All,
This sets Elecraft apart. The principals of the company and design
engineers talk with their customers. How wonderful.
73 Doug EI2CN
-Original Message-
From: Wayne Burdick [mailto:n...@elecraft.com]
Sent: 10 February 2015 18:52
To: Doug Turnbull
On Tue,2/10/2015 10:11 AM, Doug Turnbull wrote:
You might find out if signals can be heard within the arena - there
must be a lot of steel in the structure.
The far greater issue is likely to be RF noise. Elecraft does, indeed,
use at least some recorded stuff in their display. They also use
I was an Elecraft representative at Seapac in 2002 or 2003. I hooked
the K2 up to the metal framing holding the venue's curtains. There were
two pedestrian mobile stations to work and by the end of the day two
more fixed stations. So we were able to make contacts with each of
them. I
I’m not an expert on this, but from what I’ve observed is that some of these DC
bricks can be very noisy.
On Feb 10, 2015, at 12:57 PM, Lynn W. Taylor, WB6UUT
k...@coldrockshotbrooms.com wrote:
I just looked at four bricks floating around my office, and two of them are
12v. The other
Lynn:
Probably a bad idea. The so called computer bricks are designed as charge
pumps to drive another power converter. As such they are not necessarily
clean or well regulated.
73, Fred, AE6QL
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lynn
I was given a DEMI TIK2 transverter interface board which I would like to
install in a K2. It requires the 8T signal on pin 6 of J13 on the RF board,
which was there on early K2s but not on more recent versions. Can I just
connect together the pads marked X and 8T (on page 9 of the K60XV
I just looked at four bricks floating around my office, and two of them
are 12v. The other two are 18v and 19v.
The smallest one I have is 2a, which would probably charge the internal
KX3 batteries. The bigger one might be okay for transmitting.
That's why I specified 12v brick in my post.
Lynn,
You really should use 13.8 volts or higher if you can. It will result
in a cleaner signal (lower IMD).
If you are using a supply with less than that voltage, it is wise to
back down on the power a bit.
73,
Don W3FPR
On 2/10/2015 3:57 PM, Lynn W. Taylor, WB6UUT wrote:
I just looked at
Sometimes the best way to find something is to start replacing it. I
think I'm at that point
On 2/9/2015 10:43 PM, Don Wilhelm wrote:
Lynn,
You will find it someplace you have not yet looked:-) . Happy hunting.
73,
Don W3FPR
For those who need a microphone input for a Mac with a Thunderbolt port, I just
ran across this
http://eshop.macsales.com/item/Elgato/10024010R/?APC=MW2015.2Source=MW2015.02.10
Supposed to work for Windows as well.
I know nothing further about it.
David K0LUM
Lynn, I have used and was very happy with the PAE-Kx33
https://proaudioeng.com/products/pae-kx33-ac-power-supply/
https://proaudioeng.com/products/pae-kx33-ac-power-supply/
However, I acquired a few more Elecraft devices (PX3, KAT500, W2, and a relay
for a larger amp), so I consolidated all
Has anyone tried a 12v brick like most laptops use for their KX3?
Comments one way or another??
Thanks -- Lynn
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Post:
Sverre,
I would replace them - the pushbuttons are difficult to remove solder
from the pins, even with a good de-soldering iron. I cut the pins as
close to the button body as possible and remove them from the board one
at a time.
73,
Don W3FPR
On 2/10/2015 12:46 PM, Sverre Holm (LA3ZA)
Most laptop bricks are 16V or higher, too much voltage for the KX3.
wunder
K6WRU
CM87wj
http://observer.wunderwood.org/
On Feb 10, 2015, at 12:26 PM, Lynn W. Taylor, WB6UUT
k...@coldrockshotbrooms.com wrote:
Has anyone tried a 12v brick like most laptops use for their KX3?
Comments one way
I have run across some at lower voltages. Look around. I have checked some to
make sure they didn’t rise too high under no load and for RFI. A number seem
pretty good. These were all older ones.
David K0LUM
On Feb 10, 2015, at 2:34 PM, Walter Underwood wun...@wunderwood.org wrote:
Most
Joshua,
If you have previously trained your antenna tuner to that particular
antenna on that new band segment, then there is no need to do an ATU
TUNE - the tuner will automatically pick the proper L/C components for
that band segment. That is what is automatic about the Elecraft
tuners.
Good evening,
I have a question about using the antenna tuner in the KX3.
Is it necessary to hit the ATU TUNE button after moving the VFO by a few
hundred kilohertz or after a band change? What happens if I don't? Will
the ATU kick in and do it's thing on it's own?
Kinda confused about this
Steve,
Well, that is another interesting development. Just how does it
interrupt the 8T voltage to the PA bias (Q11 and Q13)? It would not be
good to short the 8T line, because that would just draw current and
cause many parts of the transmit section of the K2 to not work.
Opening the RF
Got an email from Elecraft on how to fix this problem.
You have to go into the menu to ATU MD on each band and tap hold CLR to
erase the memory. Then go into each band and tune into a dummy load to
re-establish the memory.
Problem fixed.
The staff at Elecraft never cease to amaze me. Special
I used 11 5000 mah NIMH's, 13.2v. Then used a Pepsi plastic bottle for a
shrink wrap. But then I had a charger capable of charging the NIMH's.
Make sure the laptop bat is 12v and not something bigger with a regulator
inside the LT. Usually the charging is done by the LT I believe. If it is a
I don't disagree with any of the theory.
I was hoping for some responses based on actual experience.
Forwarded Message
Subject:Re: [Elecraft] KX3 power supply brick
Date: Tue, 10 Feb 2015 17:10:55 -0500
From: Nr4c n...@widomaker.com
To: Lynn W. Taylor, WB6UUT
I use an Arborist sling-shot.
I've had it for almost 10 years.
Have 60-70 foot oak trees on the property.
Use a tennis ball full of old metal washers.
Punched 2 holes in the ball and made a wire loop.
Have a cheap deep-sea fishing reel on a platform that sits on the
ground.
The ball flies right
Package is sold. Thanks for all the inquiries.
73,
Joel - W4JBB
On Feb 10, 2015, at 5:46 AM, Joel Black joel.b.bl...@gmail.com wrote:
Updated price is $1350 +shipping from my address at QRZ.com
http://qrz.com/. If the shipping + insurance is over $25, I’ll pay the
difference and I’ll eat
Steve,
As far as I can determine, no harm would come from making that connection.
IMHO, it would be better to invert the 8R signal, but then I did not
have any 'say' in the DEMI design.
73,
Don W3FPR
On 2/10/2015 4:07 PM, Steve Kavanagh wrote:
I was given a DEMI TIK2 transverter interface
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