I have a different opinion on buying used heliax. Unless you scan it (TDR
minimum) you will never know if what you are purchasing is a piece of good
used heliax... or something hit by lightning now has carbon track shorts
and/or dielectric that is saturated with water. While some lucky people
Hi all,
had the same Problem here. I just replaced the USB to Serial Adapter with a
true RS-232 cable and it was fixed.
73
Michael
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Thanks Lyle
for me it was Tx Mon on Fast that was causing the effect.
Sounds fine when Tx Mon nor
73
John G3XRJ
The K3 MON for voice can be set to have minimum delay, in which case
you hear unprocessed audio.
Or, it can be set to hear the effects of EQ, CMP etc., but with some
delay.
I've purchased a USB Creative Blaster X-FI Pro for use with my Acer Win 7
laptop with the intention to use it with my KX3 driving NaP3.
This works fine until I connect the Elecraft supplied KX3 USB serial cable
to provide CAT control of the, when connected it introduces unacceptable
noise in the
During heavy lightning in the evening I switched all antennas to ground.
Next morning I forgot and started to transmit into a grounded antenna (sic)
It appears the transmitter is now gone dead. Admission: I murdered it myself.
Where do I start to look. - When transmitting into a dummy load the
My KX3 when driven by a allband shortwave antenna
shows am-breakthough at all bands above 30M
depending on conditions.
The source are far shortwave broadcast stations
(relative to Germany),
Iran, Pakistan, India and sometimes Deutsche Welle.
The stations hearable then are different each time
Hi Klaus,
I tried to provoke some AM breakthrough with my active antenna in april and
used a very strong (peaked up to 0 dBm (!) on my Perseus SDR the next day)
broadcast signal on 3965 (I think). The only thing I could provoke even with
this signal was some AM on the second harmonic, however
This happens to my KX3 too, but only sometimes, and I can not duplicate it.
I have not been able to track down what causes it.
I use wire antennas fed with coax, OCF dipoles and double size G5RV, it has
done it on all 3 antennas.
When the AM breakthrough happens it is very loud and can be heard
Hi K2 users;
I do found next K2-software stage ?
The K2 VFO memory does'nt take next two different VFO settings (example of two
different band settings) VFO A = 20M and VFO B = 17M
In this situation when we switch back to the other VFO,this switched VFO also
take the VFO frequency from the VFO
Hi,
Look here for a few pictures of my installation:
ab2tc.com/img_0116.jpg
ab2tc.com/img_0118.jpg
ab2tc.com/img_0123.jpg
ab2tc.com/img_0124.jpg
ab2tc.com/img_0128.jpg
Warning: The picture files are large. This installation has been in place
since last December and is working very well. It has
Hans,
It is strange that you have an indication of power output when
transmitting into a dummy load, but not into an antenna.
Is this a QRP K2 or do you have the KPA100 installed? My responses will
be different depending on the answer to that question.
Do you have the KAT2? Or the KAT100.
Hi Klaus,
my KX3 has sometimes also strong AM-Breakthrough. It is very annoying :-(
73 de Uwe, DL4AC
Am 29.07.2013 11:50 schrieb Klaus Dittrich kla...@arcor.de:
My KX3 when driven by a allband shortwave antenna
shows am-breakthough at all bands above 30M
depending on conditions.
The
Jean,
Yes, that is true, both VFOs must be in the same band.
The K2 cannot change bands by just moving the VFO from one band to
another, you must use the BAND+/BAND- buttons.
If you do move the VFO from one band to another, the displayed
frequency will change, but the VFO will not follow very
Hello Hans,
Sorry to hear about your problem.
When transmitting inot a 50 ohm dummy load, I would suggest that you first
measure the RF power actually reaching the dummy load in case the RF/ALC
indicator is misbehaving. If you do not have a RF Power Meter (Inline
type), then a diode
In my case I did find water in the sections of LDF5-50 that were
unprotected but with an ohm meter and a hacksaw was able to remove the
affected portions resulting in a 10M ohm reading after removing just a
couple of feet. The nature of the foam inside LDF5-50 doesn't permit water
to travel
Hi,
I used transformers for isolation, which worked fine. Did not need
anything else.
73,
matt W6NIA
On Mon, 29 Jul 2013 10:59:41 +0200, you wrote:
I've purchased a USB Creative Blaster X-FI Pro for use with my Acer Win 7
laptop with the intention to use it with my KX3 driving NaP3.
This
Setting RX SHFT = 8.0 solves this problem.
73,
matt W6NIA
On Mon, 29 Jul 2013 14:35:16 +0200, you wrote:
Hi Klaus,
my KX3 has sometimes also strong AM-Breakthrough. It is very annoying :-(
73 de Uwe, DL4AC
Am 29.07.2013 11:50 schrieb Klaus Dittrich kla...@arcor.de:
My KX3 when driven by a
That is a problem with any zero frequency IF (direct conversion) receiver.
Try turning on RX SHIFT. It is a locked menu item. See page 38 and
also the comment on this subject on page 43.
73,
Don W3FPR
On 7/29/2013 5:49 AM, Klaus Dittrich wrote:
My KX3 when driven by a allband shortwave
Hi Don,
but with shift on I loose dual watch.
73 de Uwe, DL4AC
Am 29.07.2013 14:49 schrieb Don Wilhelm w3...@embarqmail.com:
That is a problem with any zero frequency IF (direct conversion) receiver.
Try turning on RX SHIFT. It is a locked menu item. See page 38 and also
the comment on
Hi All.
Before I dive in, and go about creating or fixing drivers for people
who seem to have trouble with the KX3 and Fldigi(Flrig) etc, I took
a look at the current state of things.
On Windows (XP SP3) with Fldigi (V3.21.70, the *Latest* is 3.21.72)
The built in Hamlib driver (V1.2.12) for
Yes, that is true. You have to choose between the better of those two
evils.
73,,
Don W3FPR
On 7/29/2013 8:54 AM, Uwe Hermanns wrote:
Hi Don,
but with shift on I loose dual watch.
73 de Uwe, DL4AC
Am 29.07.2013 14:49 schrieb Don Wilhelm w3...@embarqmail.com:
That is a problem with any
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* On 2013 29 Jul 08:03 -0500, g8kbvd...@googlemail.com wrote:
Hi All.
Before I dive in, and go about creating or fixing drivers for people
who seem to have trouble with the KX3 and Fldigi(Flrig) etc, I took
a look at the current state of things.
On Windows (XP SP3) with Fldigi
Hi,
Version 1.2 of Win4K3Suite is now available.
New in this release, support for macros that can contain any combination of K3,
KPA500, KAT500 and P3 commands.
You can check out the new features at
http://va2fsq.com/?page_id=612
and download the file at
http://va2fsq.com/?page_id=379
And isn't the activation of the VFO isolation amplifier (RX ISOOn) a
solution?
At least that prevents the VFO signal to exit via the antenna and enter
the mains wiring.
I have yet to experience this breakthrough.
73,
Peter
Don Wilhelm schreef:
Yes, that is true. You have to choose
If Ralf's hypothesis is correct, another approach (besides RX-shift)
might be to turn on the RX ISO menu item. Doing that helps
reduce the radiation of the local oscillator.
- Les, W9XC
Hi Klaus,
I tried to provoke some AM breakthrough with my active antenna in
april and used a very strong
I was using Lithiums and when they died I installed fresh NiMH and then
worked the Baltic on 5 watts. Then I enabled the charger for 8 hours. The
next day the charge setting in the menu displays ERR BC3 in VFO B, d=002 in
VFO A. This locks the display with those messages until the KX3 is power
Is the preamplifier off and the attenuator on?
With a large antenna the preamplifier is certainly not needed and enabling
the attenuator usually won't hurt the sensitivity at all.
If you are not sure, use the basic test to determine if any sensitivity loss
is occurring: disconnect the external
I set up two portable antennas, a Buddipole as a dipole and a Chameleon VL1
plus extended Mil pole vertical with 4 grounded radials. They are on a 52 ft.
hill overlooking the Gulf of Mexico about 100 yds. away.
I receive on 6-80 fairly well ( lots of static though )and the internal ATU
tunes
Hello,
You should have no trouble getting out with 10W. Though, you are using a
compromise antenna, and that might require a bit of patience... SSB or
CW? CW, no problem. SSB, again, patience. You mention using the ATU.. I
would suggest tuning your antenna without it, so you don't lose any
And the cheapest shipping option is $42,-, which makes that adapter very
expensive
73 Henk PA5KT
Op 28-7-2013 19:09, Anthony Scandurra schreef:
Why would anyone even think of not buying these cables direct from Elecraft?
You KNOW they will work, they are fairly priced, and they will
Thank you all for taking the time to answer to this issue.
I will respond to some of the arguments and tips ..
Klaus, I already have current baluns at both ends of the coax cable.
The KX3 is driven by an analog old PS30 power supply, not a switching
power supply.
I already mentioned the AM
Hello Klaus,
I wonder if it's possible that some of the foreign stations you reported
hearing are being relayed by a European broadcast station much closer to you,
and that's why they are strong enough to contribute to your break through
problems. Just a thought.
73,
Ken Alexander
VE3HLS
Kind of OT, but:
One can use RG-8 coax with shield and outside covering removed (just
using the center wire and internal insulation to connect a tuner to
vertical antenna.
I use such as my HV jumper from the base coil of my 500-KHz
inverted-L to the top of the coil (10-inch diameter 11-inch
One can use RG-8 coax with shield and outside covering removed (just using
the center wire and internal insulation to connect a tuner to vertical
antenna.
... but once you remove the shield, you no longer have a coaxial
cable, you have an insulated piece of wire. A wire is appropriate for
the
Sorry but I do not agree:
If the mixing process involves the local oscillator (cross-modulating the
local oscillator's carrier in the AC mains), the KX3 detects the AM wherever
it is set and would not show discrete signals. If the modulated local
oscillator's signal is re-radiated by the AC
I have just acquired a very early (SN 100) K2 with the following options..
- KNB2 Noise Blanker
- KBT2 Internal Battery (with dead battery)
- KSB2 SSB Adapter
- KAT2 Antenna Tuner
Basically the radio seams to be working but with a few anomalies like..
- AF Gain noise (sounds very much like what
Bill,
I don't understand why you should be having such bad luck. I have a KX3 feeding
a number of antennas and get out pretty well. I check in to ECARS on 7255 KHz.
NA1DX was just down in Aruba with his KX3 and a Buddipole. He worked most of
the states and continents.
I would suspect that
Bill -
I also suspect you have a problem between the radio and the ether. I am
currently vacationing in Central Florida. I borrowed a KX3 from a
friend... threw up about 125' of wire fed at one end through a 9:1 un-un.
The antenna is about 35 to 40 feet up at the feed point and the far end is
Question about the PR6-10. With no signal, and the preamp off, I get a gentle
'whsh' on 6, 10, 12M, 1 bar on the S meter. Turning on the PR, on 6M
I get a slight increase in the 'whsh'. On 10M 12M the S meter goes to S7
or so and the noise level goes WAY up, sounds like 160M in a
On Mon, Jul 29, 2013 at 6:17 PM, Mike Reublin n...@nf4l.com wrote:
Question about the PR6-10. With no signal, and the preamp off, I get a gentle
'whsh' on 6, 10, 12M, 1 bar on the S meter. Turning on the PR, on
6M I get a slight increase in the 'whsh'. On 10M 12M the S meter
Try a few CW transmissions such as TEST DE KF5TEU KF5TEU AR then
search your callsign on Reverse Beacon Network to see if any stations
have copied.
73,
Drew
AF2Z
On Mon, 29 Jul 2013 13:29:24 -0500, you wrote:
I set up two portable antennas, a Buddipole as a dipole and a Chameleon VL1
plus
If you mean with the preamp on, yes the noise goes away. It sounds sort of like
wadding up paper...not so much a whosh.
It's such a big jump on 10 12, not so much on 6. I haven't been aware of much
noise since the last visit from the power company.
Mike
On Jul 29, 2013, at 9:24 PM, iain
Dan,
Do *everything* --- unless the prior owner has done some of the
upgrades. You can download the K2 A to B instructions to check if any
mods have been applied to that K2. With the firmware at 104/102, I
doubt that any of the mods have been installed.
That means the A to B mods (yes,
Yeah, so I think that you might get some benefit from the preamp on 6m
(although if you have a S1 noise level without it, probably limited
benefit), but no benefit on 10m and below (unless your noise level
varies, and just happens to be bad today).
73,
~iain / N6ML
On Mon, Jul 29, 2013
Hi Klaus,
Matt and Don, if this is a problem with _any_ zero
frequency IF (direct conversion) receiver then the KX3's
concept would be a design error. ( I hope it is not.)
It is not a design error. Simply every design has it's own limitations.
If I switch to RX SHIFT I will have a receiver
Igor Sokolov ua9...@gmail.com wrote:
Every design has it's own limitations.
Yes, AM IP2 exists in all quadrature DC receivers to some degree because
perfect mixer balance is not possible. We have a goal to improve balance using
DSP techniques.
But read on...
Klaus wrote:
If I switch to
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