On 11/8/2023 8:21 AM, Pete Smith N4ZR wrote:
I've fairly well established that the problem is not at the antenna, but
arising somewhere in the grounding/RFI protection in my station, since
it occurs only on one band and (more importantly) because it stopped
totally after I re-tightened all the
Hi John - I've fairly well established that the problem is not at the
antenna, but arising somewhere in the grounding/RFI protection in my
station, since it occurs only on one band and (more importantly) because
it stopped totally after I re-tightened all the connections in my
grounding system
Yeah, I had to replace both the line isolator and the 4:1 balun at the
feedpoint after about 2 years.
73, Pete N4ZR
On 11/8/2023 11:02 AM, Tom Doligalski via Elecraft wrote:
I have used one for years. That said, I have had to replace the line isolator
several times!
Also have one in the
I have used one for years. That said, I have had to replace the line isolator
several times!
Also have one in the shack.
Tom W4KX
Sent from my iPad
> On Nov 8, 2023, at 10:49 AM, j...@kk9a.com wrote:
>
> I am not very familiar with a Carolina Windom but I believe it is just a
> horizonal
I am not very familiar with a Carolina Windom but I believe it is just a
horizonal wire fed off center. These types of antennas can have significant
common mode current on the feedline. Perhaps there is more current on 40m
than on 80m so it works on 80m.
A resonant dipole with a choke may
Pete,
The first thing to check for a HI CUR warning is the power supply
voltage under full transmit load.
If it is low, it will cause a HI CUR condition.
The other thing that could cause it is a problem in the T/R switch or
Low Pass Filter - the fact that it continues into an RX cycle points
I send a few characters of CW into my Carolina Windom on 40M and after a
delay (1-5 seconds after I stop sending) the K3 flashes a HI CUR
warning, and the audio gain is reduced significantly. Touch the AF gain
control and it instantly returns the gain to normal, but frequently the
HI CURR
On 10/31/2020 6:07 PM, David Olean wrote:
I would put the ferrite at the end of the coax before it goes into the
rig if there were rf coming down the coax. Common mode energy can and
will get on the outside of the coax. I am not an expert on this,
I AM an expert on this. :) The most important
If there is ever any question about where to place ferrites, I’ll say in
general, put the ferrites at both ends of the coax (unless its a really short
run).
Some may argue that that is overkill. While there are always exceptional
circumstances, I would in general respectfully disagree with
Hi Mike,
I would put the ferrite at the end of the coax before it goes into the
rig if there were rf coming down the coax. Common mode energy can and
will get on the outside of the coax. I am not an expert on this, but I
would expect that any problem that would cause a transmitter to
On 10/31/2020 2:39 AM, N3ALN wrote:
I just love how some of the forum or so
judgmental, it is a only a freaking hobby, chill.
NOT judgemental, but an attempt by those of us who understand how stuff
actually works to share that with others (the several thousand hams who
read this and other
Dave
So where is the optimum place to place the ferrites for this antenna if you
have a problem like Alan described?
Does the near field extend roughly to half the stacking distance of that
antenna (i.e. 6 feet or so), making that the best place for the ferrites?
Does a mostly vertical coax
Hello Alan
That was my antenna design. It has a teflon coax 1/2 wave balun that
kills RF on the shield side of the coax, but there is not much you can
do about near field energy getting picked up by the outside of the coax
due to radiation. It is best to tape the coax down snugly along the
Hum, I was getting this HI CUR error only with my Directive Systems 6 Meter
antenna (DS50-5) that has a 1:1 SWR I hope they know antenna design? Maybe
not? The toroids fixed my issue. I just love how some of the forum or so
judgmental, it is a only a freaking hobby, chill.
--
Sent from:
It's really sad to see how some companies prey on people who don't have
the knowledge or the experience.
This is only one example!
Bert VE3NR
On 2020-10-30 13:31, Jim Brown wrote:
On 10/30/2020 3:43 AM, N3ALN wrote:
HI, I get this kit from Palomore for the K3 and I got another for my
Yaesu
On 10/30/2020 3:43 AM, N3ALN wrote:
HI, I get this kit from Palomore for the K3 and I got another for my Yaesu
Quadra VL-1000. Take a good look at their website for what you will need.
https://palomar-engineers.com/ferrite-products/ferrite-cores/Elecraft-Transceiver-RFI-Kits-c46846169
Total
Ferrites are probably not the answer here. Problem showed up with no
changes in configuration, and problem happens with a dummy load. Plus I
have ferrites in most of those locations already. This only happens on 40
meters and happens both with antenna connected and when dummy load
connected.
On
HI, I get this kit from Palomore for the K3 and I got another for my Yaesu
Quadra VL-1000. Take a good look at their website for what you will need.
https://palomar-engineers.com/ferrite-products/ferrite-cores/Elecraft-Transceiver-RFI-Kits-c46846169
--
Sent from:
Which tortoise did get and from whom?
73
Bill, WB9CAC
Sent from my iPhone
> On Oct 30, 2020, at 2:19 AM, N3ALN wrote:
>
> I was getting this HI CUR message to and it was driving me CRAZY! I called
> Elecraft and I was going to send my K3 back to them and then I saw a few
> YouTube videos
I was getting this HI CUR message to and it was driving me CRAZY! I called
Elecraft and I was going to send my K3 back to them and then I saw a few
YouTube videos and I installed a TON of toroids on the K3 and Amp and every
wire in my shack and no more HI CUR message. Best of luck!
--
Sent
Today I find that I get a HI CUR error when transmitting at just a little
over 50 watts. Switched to a DL and find that on 40 meters my K3 draws more
current at 50 watts than it does on all the other bands. This is with the
tuner bypassed and hooked to one of my old cantennas. SWR shows flat on 40
Have you tried to insert the K3 ATU and see if it solved?
Ian IK4EWX
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Help:
I have a K3 and on 6 meters on FT8 at 100W I get a HI CUR error and not at
95W or less and I have run the K3 utility at re-calibrate the transmitter at
5W and 50W. What else should I do?
thanks
Alan N3ALN
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I have a K3 and on 6 meters on FT8 at 100W I get a HI CUR error and I have
run the K3 utility at re-calibrate the transmitter at 5W and 50W. What else
should I do?
thanks
Alan N3ALN
--
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I have a K3 and on 6 meters on FT8 at 100W I get a HI CUR error and I have
run the K3 utility at re-calibrate the transmitter at 5W and 50W. What else
should I do?
thanks
Alan N3ALN
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No text except title?
I have the same issue on my KX3-2m: Hi-Current blinking even on dummy
load but 3 W output still available . Having a loose SMA connector , I
had to open KX3 and extract 2m card in order to tighten SMA nut (very
annoying!) . I found it was convenient to use a short
how can a K3 have a Hi Cur display while in the receive mode?
The K3 mutes slightly when Hi Cur is displayed
KC5WA
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Wiol ono
Ham Radio!
IT IS MY ADDICTION
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Home:
Does it draw current when turned off? If so, you have a shorted final
transistor.
Craig Buck
On Jun 14, 2014, at 7:04 PM, Robert 'RC' Conley rc.kc...@gmail.com wrote:
how can a K3 have a Hi Cur display while in the receive mode?
The K3 mutes slightly when Hi Cur is displayed
KC5WA
While transmitting some JT9 at 100w on 6m yesterday and watching the
voltage display on the K3 menu I occasionally saw a HI CUR message which
then disappeared after less than a second.
I've never seen this before. I was monitoring the voltage after putting in
some new cabling from the PS and it
It depends what frequency you are using, Jim, but according to the
transmitter specification on page 9 of the Owner's Manual, the suggested
maximum power on 51-52 MHz is 85W. For 100% duty cycle modes it might
be best to turn the power down a bit.
73 de David G4DMP
In a recent message, Jim
Dave
Nice catch! I was on 50.278 but I'll turn the wick down a bit unless using
the KPA500.
73
jim ab3cv
On Fri, Aug 9, 2013 at 10:47 AM, David G4DMP da...@g4dmp.fsnet.co.ukwrote:
It depends what frequency you are using, Jim, but according to the
transmitter specification on page 9 of the
Jim,
What is your power supply voltage as reported by the K3 when transmitting? As
power supply voltage drops the K3 increases current in order to put out the
requested power. If the voltage is dropping too low this can result in the
hi-cur message.
Also, the threshold for the hi-cur
U;ve seen it on occasion with my poorly matched wires. Press the Auto Tune
button and it will go away.
Barry W2UP
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View this message in context:
http://elecraft.365791.n2.nabble.com/Hi-Cur-tp7564940p7565005.html
Sent from the Elecraft mailing list archive at Nabble.com.
I just put up a new antenna and SWR is 18.1 on 10 meters when I put K3 in the
tune mod a Hi Cur reading comes on the dispaly I have never seen this before is
this normal with SWR of 18.1 ? I have run antenna’s with this amount of SWR
but have never seen this HI Cur reading .
Don
W4DEE
Scott,
Was that on a K2 or a K3? Please indicate in both the subject and the text.
Put a dummy load between the radio and the dummy load. Tune into the
dummy load.
After the TUNE completes, set the power to 40 or 50 watts and hold the
key down for about 5 seconds.
Tell us how much power is
Hello to all,
Need some help. After finishing up on 80 cw last night I moved up to 20, hit
the auto tuner for the beam and received HI CUR. And this only ocurred on 20
even with a Dummy Load attached. Msg seemed to go away once I reduced the
wattage down around 60 watts. Hepl!!!
Looks for an RFI problem that only occurs on 20m. Or a grounding
problem, maybe with a long leg like 5m or so. Nice resonant section
there.
matt W6NIA
On Fri, 19 Aug 2011 00:31:53 -0400, you wrote:
Hello to all,
Need some help. After finishing up on 80 cw last night I moved up to 20, hit
Hi folks. I'm finishing a new K2 for a friend. When I tried to perform the 40m
Tx alignment, I instantly get HI Cur and the power drops to zero. This
happens if the output power is set to anything above 0.3 watts. This only
happens on 40 meters. I was able to peak the output on all the other
Larry,
If it only happens on 40 meters you have some problem with the 40 meter
Low Pass Filter.
Look at the schematic for RF Board sheet 3 toward the lower right and
you will see the components associated with the 40/60 meter LPF - check
them all for proper values, correct turns on toroids,
From: Don Wilhelm [mailto:[EMAIL PROTECTED]
Sent: Wed 4/23/2008 7:40 AM
To: Hagood, Larry
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Hi Cur error on alignment part III, even at QRPp. 40m
only. Rx is good.
Larry,
If it only happens on 40 meters you have some problem with the 40
I sometimes get a HI CUR warning on my new K2. I have the high current set at
2.5 amps. My power supply is steady but on 40 meters when the SWR is slightly
high but below 2:1, I get a HI CUR when running 10 watts out. Into a good 50
ohm dummy load I get 2.02 amps on 40 meters.
I've double
Larry,
The bare K2 (no KAT2, no KPA100, no KAT100) will respond like that if
the antenna load has an impedance less than 50 ohms - it is not likely
to happen when the antenna feedpoint impedance is higher than 50 ohms.
It all has to do with the way the basic K2 handles its power control -
I get a HI CUR warning on 15 meters when connected to my 40 meter dipole. I
can only run about 7 Watts before the limit (2.5 amps) is reached. I am
getting full output (12 Watts) and about 2.25 amps draw when the dummy load
is connected. My SWR is ok on 15--about 1.4:1--and I am getting out ok.
Kirk,
There are several possibilities.
On the K2 side, you could have one too many turns on L23 and/or L24 causing
the LPF to be tuned a bit too low. This usually shows up with a test on a
dummy load, but is worth checking anyway.
At your antenna, the SWR alone does not tell the whole story -
While experimenting with 15 meters today, I noticed that when
transmitting a CQ at 10 watts, HI CUR would appear intermittently on the
display. I have never seen this on the lower bands (20 meters and down)
where I do 99% of my operating. Turning the power down to 8 watts on 15
meters
Cathy,
There could be a variety of reasons for a Hi Cur - one is simply that your
threshold is too low, or it could be associated with the particular load
that the antenna presents to the K2 or it could be a problem with the low
pass filter in the K2, or it could be your power supply voltage.
I
While waiting for parts to fix my KPA100 and KAT100, I was checking out
my K160RX.
The situation is that at 12W out the K2 (KSB2, KNB2, KDSP2, K106RX,
KIO2) draws 2.5 amps. With power set at anything above that, it exceeds
4.5 amps and I get a Hi CUR warning (limit set at 4.5 amps).
Different problem when he doesn't have a KPA100 though.
Tom
At 04:53 PM 11/22/2006, Fred Jensen wrote:
John Huffman wrote:
The situation is that at 12W out the K2 (KSB2, KNB2, KDSP2, K106RX,
KIO2) draws 2.5 amps. With power set at anything above that, it
exceeds 4.5 amps and I get a Hi CUR
John,
How much power is actually being produced? What does the K2 meter indicate
in TUNE?
What is your power supply voltage under this 4.5 amp load? If the voltage
drops significantly, the current will go up - the K2 tries to provide the
requested power out, and if the voltage drops, the
I was getting a Hi Cur warning on my K2 tonite. Any helpful hints on what to
look for?? I fired my K2 up tonite on PSK and noticed its only putting about
3 watts out. Double checked it and its all modes, and all bands even tho the
power is set to 5 watts. RF leds only go to 3, usually goes to 5.
My K2, which is newly built but was working fine ... spontaneously has
started giving me a HI CUR reading even whenever I hit the TUNE button,
even when going into a dummy load Regardless of the setting of the
power output control ... ( the CAL CUR limit is set to 3.5). any
advice as to
Hi,
I have been building a K2/100 for a friend, and it has all been going
very smoothlyuntil tonight.
I had the amp installed and it put out the output it should on all bands,
but I didn't have the power calibration as good as I liked so I took the
amp out, removed the shield and set
Ron,
If you are certain it was producing near to full output with the KPA100
installed, then I would conclude that something happened when you removed
the KPA100.
I would be looking for something like a short in the coax or its connector
or something equally 'dumb' like that. OTOH, Hi-CUR
Hi all,
I just finished my K2 and have a problem on 17m band. All is working fine, I
got about 15 watts on each band and a bit less on 10m but on 17m, the display
shows Hi Cur and output power is less than 1 watt... It appears only on 17m
band.
I have checked solders, they seem to be ok.
Any
PROTECTED]
To: [EMAIL PROTECTED]mailto:[EMAIL PROTECTED] ;
elecraft@mailman.qth.netmailto:elecraft@mailman.qth.net
Sent: Monday, December 06, 2004 9:01 AM
Subject: Re: [Elecraft] Hi Cur, low power on 17m
The only thing that is unique to 17 meters and not used on another band is
the VCO
You will probably have to find the correct value by trial and error. I
would recommend setting CAL CUR to 4.0 (which conforms to the 'at least 3.5'
instruction) - or even more and then lower it one step at a time until the
message re-appears - more likely on 10, 12 or 15 meters. The actual
After adding the KPA100 I had some HI CUR warnings. After a few emails back and
forth, I set my CAL CUR to 4.1 and its been that way for over a year and a few
thousand QSOs.
MYMV.
73 de NA8M
John
On my K2/100 I have set the HI CUR to 3.5 but get warnings on some higher
bands. The manual
On my K2/100 I have set the HI CUR to 3.5 but get warnings on some higher
bands. The manual says HI CUR should be set to at least 3.5. Can anyone
recommend what a typical value should be and what value I should not go beyond.
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