Hi Nick,
Since there are many unknowns and concerns about the EMI and
magnetic environment at your home QTH, it might be revealing
to repeat your basic tests (battery and dummy load) at a friend's
QTH. Maybe you also have a friend who owns a K3 or K3S.
Forget about resetting your
On 4/26/2019 7:48 PM, Frank Krozel wrote:
Try switching to a linear supply?
No, ALL power supplies with cap input filter have harmonics. But the
problem is FAR, FAR larger than equipment in the shack.
Nick -- what kind of mic do you use with your rig? Is it an electret or
a dynamic?
On 4/26/2019 6:11 PM, Nicklas Johnson wrote:
Plugging in some headphones, turning the TX Monitor up all the way, I don't
detect the hum in the TX monitor signal either in TX test mode,
transmitting into a dummy load, or even transmitting into the antenna with
very low power. If I turn up the
I wish to thank all the folks here who offered helpful comments on the
problem. Yes, I did all the checking of ports and drivers and
connections - I've been dealing with those sort of things for years so
I've been there, but with no resolution this time. Neil did relate his
solution to the
My favorite from the southern US is "fixing": as in 'I'm fixing to
leave'= getting ready to go.
One of the premier wordsmiths, Winston Churchill is spinning in his grave.
Good yucks,
73
Tom
HP1XT
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Elecraft mailing list
Home:
Try switching to a linear supply?
Sincerely, Frank Krozel t: 1-630-924-1600 fr...@electronicinstrument.com
BSEE, AASEET, FCC Lic.# PG-18-19178, KG9H
Electronic Instrument Associates - Central, Inc. ...since 1971
w: www.electronicinstrument.com d/l our linecard at
Before I forget, thank you to everyone who has responded thusfar with ideas
and suggestions. This one is a real head-scratcher, and I appreciate
everyone bouncing ideas around with me.
If the problem is in fact originating with power line neutral distortion,
what, if anything could I actually do
EQ should have nothing to do with solving the problem. EQ just masks it.
Sent from my iPad
> On Apr 26, 2019, at 6:56 PM, Bob McGraw K4TAX wrote:
>
> I recall commenting earlier. What TX EQ values are being used for AM. ?
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Apr 26, 2019, at
Sounds like some internal RF feedback.
Sent from my iPad
> On Apr 26, 2019, at 11:43 AM, Nicklas Johnson wrote:
>
> This morning just for yuks, I also temporarily disconnected the ground from
> the rig entirely while also connecting only to a dummy load, so there could
> be no path to ground
I think Jim's concern, expressed earlier, about power line neutral distortion
components is valid. And it may be originating in "the big green transformer"
in the yard.
Bob, K4TAX
Sent from my iPhone
> On Apr 26, 2019, at 8:53 PM, Nicklas Johnson wrote:
>
> Sorry for the additional email,
Sorry for the additional email, but this is particularly interesting: it
occurred to me that I'd never tried the reverse setup, so I put the KX3 in
transmit mode and 0.1W on AM in another room, and set the K3S on receive.
And sure enough, the K3S immediately started picking up S40 of buzzing
A few more data points:
Changing TX EQ, including cutting the first 4 bands all the way down to -16
had no effect on the received signal.
Plugging in some headphones, turning the TX Monitor up all the way, I don't
detect the hum in the TX monitor signal either in TX test mode,
transmitting into
On 4/26/2019 5:28 PM, Bob McGraw K4TAX wrote:
I suggest -16 dB on the first 3 bands.
My standard recommendation for ham radio is to start with max cut of 50,
100, and 200 Hz bands, 6 dB of cut of the 400 Hz band, and get signal
reports. Do this in TXEQ. What sounds "right" will depend on
A pro audio colleague, Neil Muncy, now deceased, specialized in chasing
down hum and buzz in home studios. One mechanism he ran into several
times was "triplen" harmonic current on the incoming neutral or ground,
and I worked with him on one of them. These harmonic currents are the
result of
Yes but the EQ is in the digital path. The EQ should be done there, preferably
after the MIC input. The AM BW does not attenuate the end like the SSB
filter.
I suggest -16 dB on the first 3 bands.
Bob, K4TAX
Sent from my iPhone
> On Apr 26, 2019, at 6:38 PM, Nicklas Johnson wrote:
>
Flat, except I turned the first one down a few notches, which doesn't
really do much in my case because both the microphone and mixer that I use
(when they're actually connected) roll off below 150 and 80 Hz
respectively. It had previously been suggested to me that rolling off low
frequency cruft
I recall commenting earlier. What TX EQ values are being used for AM. ?
Bob, K4TAX
Sent from my iPhone
> On Apr 26, 2019, at 5:48 PM, Nicklas Johnson wrote:
>
> My desk in this case sits adjacent a wall, and there's only a shower on the
> other side of that wall. I did turn off everything
My desk in this case sits adjacent a wall, and there's only a shower on the
other side of that wall. I did turn off everything in the vicinity of the
desk and all the lights in the room (I've in fact heard a very similar hum
from the switching power supply for my mixer, and my first thought was
Use the command line options in a batch file. The options are COM Baud Port
timeout. Something like:
start KAT500-Remote.exe COM13 38400 4629 2000
start KPA500-Remote.exe COM11 38400 4627 2000
Insert your appropriate values.
Ken K6MR
From:
I did in fact wonder the same thing myself-- whether the solar controller
could be injecting some noise or just making some noise, so when I did the
battery test, I disconnected the battery from the controller and ran
directly from the battery to the rig.
I couldn't tell you a dB level of the
That makes sense too. The transformers are unshielded, so are sitting
ducks for strong nearby magnetic fields. K6XX ran into this early on
running RTTY from a big amp PSU very close to a K3. The coupling was so
strong that it went into regeneration!
73, Jim K9YC
On 4/26/2019 3:16 PM,
I had this same problem years ago before purchasing my first K3.
It turned out to magnetic field coupling between my HyGain
T2X control box and an audio transformer in the transceiver.
As Don suggested, be sure all power supplies including computers,
UPSs and lamps are turned off during the
I rarely use my DVR as I don't contest. When I have a mic or audio xmit
issue, it is super handy. Just sayin'.
72 & 73,
Bill
K9YEQ
FT’er for K2, KX1, KX3, KXPA100, KAT500, W2, etc.
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Bill
Sent: Friday, April
It especially depends on what part of the world you're in...
Years ago Mmy wife Phyllis and I spent a weekend visiting Al G3FXB
and his XYL Maud. I'll never forget Phyllis' astonishment when, after
a long night of enjoyable conversation and when she was ready for
bed, Al asked:
When would
I think you may have hit on it, Bill. Say it's a pulse-regulated
controller on the battery is on the soft side. BTW -- most solar charge
controllers put out a lot of RF noise. The only good pulsing
controllers I've found are the MPPT controllers made by Genasun.
In addition to operating from a battery isolated from the solar system,
I would recommend that you do a quick test - remove all cables from the
K3S except the power cable and a coax to a dummy load. Power down all
power supplies in your station, including any desk lamps.
Go into Transmit by
The word that struck my attention is "solar" and the possibility of that
controller causing noise. When you were connected to just the battery and
dummy load, was the battery disconnected from the solar system? And, at
what level was the buzz relative to a full power carrier?
Every transmitter
Art,
I use two in series to my KPA1500 without issues. Before that they were used in
series with the KPA500/KAT500. Also, with no issues.
73,
Mark, WB9CIF
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Art Suberbielle
Sent: Friday, April 26, 2019 20:20
To:
It likely depends on which area of the US you are in.
I don't know about the current vernacular, but where I grew up in
Central Eastern Ohio in the 1950s and 1960s, cigarettes were known as
"fags", and a 'fag break' would be a perfectly acceptable expression.
I once heard a broadcast from
It's from an earlier meaning of the word pale, which meant a specific region or
area within a defined boundary. Hence the denotation of beyond the pale is
"outside the boundary." Another current use of the word's earlier meaning is
the phrase "The Pale of Settlement," which meant and to
You are so right. So many people seem to guess what words or phrases mean
without bothering to determine what the rest of society agrees that they mean.
Then they expect you to understand their personal interpretation.
However, I’d add that it’s also useful to remember George Bernard Shaw and
Not that I have been able to find after 5 or 6 years of using the KPA500
remotely.
Mike va3mw
On Fri, Apr 26, 2019 at 4:42 PM Mike - W5JR wrote:
> I’ve poked around looking for a solution, but nothing surfaced.
>
> I have the two programs loading on startup, but also need them to go
>
On 2019-04-26 1:29 p.m., Wayne Burdick wrote:
Some English words have become completely useless in practice, like
"semiannual" and "biannual," either of which can mean "twice a year" or
"every other year." In fact if you look up the definition for one, you
often see the other shown as a synonym.
I’ve poked around looking for a solution, but nothing surfaced.
I have the two programs loading on startup, but also need them to go directly
into hosting mode. Today, I have to remotely access the shack computer to
manually engage “Start Hosting Remote”.
Is there a way others have found?
Just one more case of "no good deed goes unpunished!"
The "punishment" was the innocent misuse of an infrequently used
phrase when the writer clearly intended to praise Eric for far
exceeding customer expectations.
Not to belabor the point, but "beyond the pale" means exactly the
Hi all,
Does Elecraft sell a longer version of the standard cable? I need about 3
more feet. As an alternative, can 2 of these cables be used in series to
provide the extra length without creating any timing issues for the KPA1500?
Thanks & 73,
Art KZ5D
13 KHz filter works very well for AM. It provides +/- 6.5 KHz at
IF which is plenty for even the guys with converted broadcast rigs
that are generally +/- 5 KHz. The K3/K3S DSP and audio brick wall
filters will limit the highest audio frequency to around 4.5 KHz
but you can always use the DSP
On 4/26/2019 11:01 AM, Wayne Burdick wrote:
>> Wayne was right, I meant that Eric had gone way beyond what was
>> expected, in a good way. My understanding of the phrase was it
>> meant beyond bad things and into the good. Sorry if you saw it
>> otherwise. Guess I better watch out for the
> On Apr 26, 2019, at 10:43 AM, James Brassell wrote:
>
> Andy,
>
> Wayne was right, I meant that Eric had gone way beyond what was expected, in
> a good way. My understanding of the phrase was it meant beyond bad things
> and into the good. Sorry if you saw it otherwise. Guess I better
If you don't want to transmit but only listen, SSB mode works just fine
with 2.7 or 2.8 kHz filters.
73, Jim K9YC
On 4/26/2019 6:16 AM, Bob McGraw K4TAX wrote:
I find the 6KHz very adequate for AM, both RX and TX.
__
Elecraft
Andy,
Wayne was right, I meant that Eric had gone way beyond what was expected,
in a good way. My understanding of the phrase was it meant beyond bad
things and into the good. Sorry if you saw it otherwise. Guess I better
watch out for the wordsmiths.
73, Jim K4ZMV
On Fri, Apr 26, 2019 at
Beyond the pale - outside the safe area protected by the British in Ireland.
Normally taken to mean immoral, dangerous and probably obscene.
Sent from my iPhone
> On 26 Apr 2019, at 18:29, Wayne Burdick wrote:
>
> "Beyond the pale" is an infrequently used idiomatic expression (at least in
>
"Beyond the pale" is an infrequently used idiomatic expression (at least in the
U.S.), probably misunderstood by many. I believe it is used in a negative sense
for the most part, but clearly that isn't what the writer meant.
Some English words have become completely useless in practice, like
I would be floored and would take a blank paper and a good pen.
De KG9H
> On Apr 26, 2019, at 12:08 PM, Andy Durbin wrote:
>
> " When an owner of the company calls to assist, that is beyond the pale. "
>
> I wonder if that is what you really thought.
>
>
" When an owner of the company calls to assist, that is beyond the pale. "
I wonder if that is what you really thought.
https://www.phrases.org.uk/meanings/beyond-the-pale.html
Maybe it means something completely different in other lands.
73,
Andy, k3wyc
I did listen and look at my K3S on my SDR receiver in AM mode. I do find
there is a small amount of hum on the carrier. Then switching to LSB, I
do not find the hum present.
You may want to check the settings of your TX EQ. If you have any low
frequency boost, that will contribute to the
This morning just for yuks, I also temporarily disconnected the ground from
the rig entirely while also connecting only to a dummy load, so there could
be no path to ground at all, let alone multiple paths. No change.
I guess the next things I'll probably try are a full factory reset, and
then
Grant: thanks for the link to the install manual. WOW! I don't see that
in my future - too many places for errors. My K3 is not broken and I
don't want to break it. Thanks again.
Of course, I could always sent the K3 out and have all the updates made
and the DVR installed. But, all I operate
OK thank you everyone fo your input
Sincerely, Frank Krozel t: 1-630-924-1600 fr...@electronicinstrument.com
BSEE, AASEET, FCC Lic.# PG-18-19178, KG9H
Electronic Instrument Associates - Central, Inc. ...since 1971
w: www.electronicinstrument.com d/l our linecard at
Frank,
You can certainly use the 13kHz filter for listening to AM - even for
transmitting.
It also works for FM as well, so the 6 kHz filter does not have to be
present.
73,
Don W3FPR
On 4/26/2019 8:36 AM, Frank Krozel wrote:
On weekends here in the Midwest there are many AM nets (as well
It’s fairly involved to add after the fact. Not difficult — but considerably
more than “pull the cover, plug it in”.
https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740130%20KDVR3%20Option%20Installation%20Rev%20C.pdf
Grant NQ5T
K3 #2091 KX3 #8342
> On Apr 26, 2019, at 9:19 AM, Bill wrote:
What is entailed in installing a DVR into the K3? Sadly, I have to Move
the KPA-500 and a PalStar manual (large) tuner before I can even get to
the K3, For me, this is a big job. So thought I'd ask before I blindly
jump into this.
Bill W2BLC
I find the 6KHz very adequate for AM, both RX and TX.
Bob, K4TAX
Sent from my iPhone
> On Apr 26, 2019, at 7:36 AM, Frank Krozel wrote:
>
> On weekends here in the Midwest there are many AM nets (as well as the normal
> 3.880 Nets) that I like to listen to.
> I am curious as a CW guy, I
Phil,
I've got my K2/100 running under Win10 using DXLabs Commander. I
could never get WSJT-X running the K2 directly using the built in Hamlib
settings, or with Omnirig or Flrig. It works fine, and I was able
to create custom controls for Commander to adjust the power if I'm
running
On weekends here in the Midwest there are many AM nets (as well as the normal
3.880 Nets) that I like to listen to.
I am curious as a CW guy, I would like to not take away from my already
compliment of filters, 500, 200Hz to put in 6 and 13kHz filters, thinking of
adding just the 13kHz filter.
Again, the problem persists with all inputs completely disconnected and the
mic gain set at 0. And running solely on a battery into a dummy load.
Nick
On Thu, Apr 25, 2019, 10:10 PM Jim Brown wrote:
> On 4/25/2019 8:15 PM, Nicklas Johnson wrote:
> > Physically touching the case or grabbing
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