Hello all.
I have just bought a used K3S and it is on its way, I expect it early next
week. I am looking for a few items that maybe someone is willing to sell?
1. K3EXREF
2. KTCXO3-1
3. KFL3C-400 8
Regards
Conrad PA5Y
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Elecraft
KPA500 HF+6m amplifier. Good condition electrically and
mechanically. Includes the original kit assembly manual and a
downloaded owner's manual from Elecraft. $1750 shipped. Prefer
USPS money order. Sorry, no Paypal.
__
Elecraft
One of the worst FD problems I’ve experienced was a Japanese transceiver (I’ve
honestly forgotten the brand) in the SSB tent that transmitted a wideband hiss
whenever the PTT was closed. We couldn’t operate CW on the same band even
though there was no problem caused by his SSB signal.
Victor
Scott,
You may want to take a look at http://www.websdr.org/
There are other similar resources out there also like airspy servers
https://airspy.com/directory/
They even allow you to make recordings of your signals. It's a great
resource for hearing/seeing your signal at remote locations.
--
Rob
Thought I would ask here.. Anyone have a spare P3_SVGA laying around??
TNX Will WC2L
--
William Liporace WC2L
http://www.wc2l.com or http://dxc.wc2l.com
AR-Cluster Node telnet dxc.wc2l.com or 144.93 MHz
w...@wc2l.com
__
Elecraft
Bob I wonder if your mosquitoes are bigger than ours?
Ed..
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob McGraw K4TAX
Sent: Friday, June 14, 2019 6:54 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] FIELD DAY
Absolutely the best! And the previous scores substantiate such.
I've been using a 134 ft center fed dipole with balanced feed for 50+
years at my various QTH's. I've yet to find any antenna that performs
better and always consistently without effects of wind, rain, snow and ice.
73
Bob,
We use Ladder line fed dipoles. The dipole is 134ft long and the feed lines
(400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder line
needs an extra length and I think it is cut at 66 ft. extra. We place the
antennas far enough apart but are in a straight line. The ladder lines
Very good info to know. Thanks for sharing.
73
Bob, K4TAX
Sent from my iPhone
> On Jun 14, 2019, at 5:58 PM, Wes wrote:
>
> In an earlier post I asked for help from the collective wisdom of this group.
> In response I received a lot, some via the reflector, some privately. I
> would
Thanks for the mention of the Collins document. I had not seen it and after a
search and finding it, I was amazed at how much of it was similar to what I
established independently.
If you happen to look at the bottom of my QRZ bio you can see the mobile rig
belonging to a boyhood neighbor.
In an earlier post I asked for help from the collective wisdom of this group.
In response I received a lot, some via the reflector, some privately. I would
like to thank all for the assistance.
Some of what I learned I'll repeat.
1) WSJT-X can be run using port sharing despite the common
Scott, my recollection was that SS7 only affected the call setup but not the
transmission characteristics. It has been a while ago but that is what I
remember.
I believe that the REAL problem was that the system slowly evolved from a
battery and ground to a pretty complicated analog/digital
Trying to remember, but wasn't that a legitimate issue with early
analog telephony? I don't recall if, pre SS7, the line amps had
automatic gain adjustment. Enough hops, didn't the signal start to
attenuate?
Scott
AD6YT
On Fri, Jun 14, 2019 at 11:28 AM Bob McGraw K4TAX wrote:
>
> Reminds me of
I've started sending discreet emails to ft8 ops who are overdriving
and including screenshots, trying to make clear "it isn't the power,
you're overdriving". There isn't a well-known public resource to
provide that kind of feedback today. I've considered setting up an sdr
dongle and toolchain for
That worked Don, thanks. I had to back the PC audio output down to 15% and then
increase KX2 MIC GAIN to 18 with the WSJT-X slider up to ~75% with 4-5 bars
ALC. QSOs are coming in slowly but surely now from 1000km+ on 5W with an indoor
whip on 20m. I can’t wait to get outside!
My faith is
David et al;
My statement is almost word for word from the Elecraft K3 manual. And
some from work done by Art Collins and company at Collins Radio. They
prescribed the function of a Noise Blanker as follows:
"The following operational requirements were kept in mind:
1. Reduction of
Reminds me of a true story of my dear grandmother. I came into the
house one day while she was on the telephone. She was almost hollering
at the top of her voice. After she finished, I asked "grandmother why
were you hollering?" She replied "I was talking long distance".
Seems as hams
It may be better said that a Noise Blanker responds best to impulses
with a fast rise time like ignition noise from a gasoline engine. It
does not have to be repetitive (but often is).
73,
Don W3FPR
On 6/14/2019 2:05 PM, Wes wrote:
I have one little nit to pick with this. In a properly
A few years ago I was working NAQP SSB and came across this guy who was
really loud but had such an overdriven signal nobody could copy him. He
kept calling CQ but nobody answered. I finally threw my callsign out
there and when he came back I told him he needed to back off on the mic
gain
I have one little nit to pick with this. In a properly designed blanker,
there is no requirement that the noise be repetitive; blanking should occur on a
single pulse or on random pulses. Blanking becomes ineffective when 1) an
undesired signal appears in the detection bandwidth that exceeds
For weak CW signals try NR= mF5-3 with IF BW= 700-1000 Hz and APF on. The
mF#-# settings mix unprocessed signal with the NR processed results. the second
# sets how much. The wider IF bandwidth lets the NR work optimally on random,
uncorrelated noise while the APF pops the desired signal
Or any other multiband antennas in a multi-transmitter situation.
73,
Don W3FPR
On 6/14/2019 1:36 PM, Bob McGraw K4TAX wrote:
Neither should G5RV antennas.
Bob, K4TAX
Sent from my iPhone
On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote:
oops... I meant to say:
Inverted V
So was the issue the result of poor shielding and connectors of cables inside
the trailer or actual antenna separation? That would do it.
And could the SSB station be pushing the power and ALC and compression thus
likely causing distortion and splatter? That would do it.
One of my major
When running multiple HF transmitters simultaneously its wise to:
- avoid multi-band antennas, or
- use external bandpass filters, or even better
- avoid multi-band antennas and use bandpass filters
73
Frank
W3LPL
- Original Message -
From: "Bob McGraw K4TAX"
To:
Neither should G5RV antennas.
Bob, K4TAX
Sent from my iPhone
> On Jun 14, 2019, at 10:44 AM, donov...@starpower.net wrote:
>
> oops... I meant to say:
>
>
> Inverted V dipole and verticals are NOT allowed at W3AO
>
> 73
> Frank
> W3LPL
>
> - Original Message -
>
> From:
>From experience, I find running any audio level at 100% is usually an
>indication that the levels throughout the "system" are not correctly balanced.
>
With my version of Windows 10 Pro the SPKR level runs 30% to 35%. With the
radio and or the Signalink the PWR slider on WSJT-X is 50 to 60%
The below statement surprised me. That is not how noise blanking
normally works; normally it will suppress any wide band pulse. The
typical arrangement uses a high bandwidth, low delay, path, to detect
the pulse. It can then mute the signal path by the time the pulse gets
through the
-- Forwarded message -
From: Jimithy66
Date: Thu, Jun 13, 2019 at 10:16 PM
Subject: Re: [Elecraft] K2 Early Ver. A Power out problem #2438
To:
Hi Don, the K2 is #2438
And has been sitting around half built for 18 years or so:-0
The manual for Rev. A calls for 16 turns for
For only $36.51 the ModMic-4 adds an excellent boom microphone to
your favorite Bose noise cancelling headphones (or your other favorite
headphones).
antlionaudio.com/collections/microphones/products/modmic-4?variant=34702706567
73
Frank
W3LPL
Good morning, Bob . . .
We normally use 75-100 feet separation between dipoles aligned
end-to-end, and have had no problems over the years. However, last year
we were limited to less than 50-feet separation and I noticed the
Carrier Operated Relay (COR) in my K3 was kicking on occasionally
Bret (AKA Charles),
Back down the computer level controls until you obtain the conditions in
your first sentence.
Than don't change the audio level controls further. You may have to
"touch up the levels depending on the band.
I know the internet advice is to use the audio level to control
oops... I meant to say:
Inverted V dipole and verticals are NOT allowed at W3AO
73
Frank
W3LPL
- Original Message -
From: donov...@starpower.net
To: elecraft@mailman.qth.net
Sent: Friday, June 14, 2019 3:40:43 PM
Subject: Re: [Elecraft] FIELD DAY PREP
We use a dozen K3
We use a dozen K3 transceivers at W3AO, we've never had a K3
failure despite running as many as four K3s on the same band
(CW SSB Digital and GOTA). The four K3s on each band do not
interfere with each other either.
Our secrets to success:
- same band antennas are horizontally polarized
Hi Don - I *did* say that unclearly. What I meant was that I tried operating 5W
with the Win10 volume mixer slider at 50% and 100%. At 50% I can control 4-5
bars with MIC GAIN but at 100% ALC cannot be rolled back to 4-5 bars - it stays
way high. I’ll try as you suggest.
Best regards,
Bret
With stations running 100 watts or less and reasonable antenna
separation, I've found no reason for a Receiver Input Protector.
Although, it might be a good idea to circumvent a "screw up" by an
operator. I've seen some mighty strange things done by knowledgeable
hams at Field Day.
73
Hi Jim, The power output is set to 5W on my KX2. The heat sink is getting warm
so those 5W are going somewhere! It’s raining here in Upstate NY where I’m
traveling otherwise I’d try operating outside from the AX1. I also have 20m and
40m HAMsticks to try elevated on a short mask when it’s dry.
Bret,
I am confused by the first and second sentences of your post.
In the first sentence, you say you can achieve 4 bars with the 5th one
flashing.
Then in the 2nd sentence, you say that you cannot achieve that same
condition.
Are you aware that if you overdrive the KX2/KX3 audio with too
Have any of you used Ameritron's "Receiver Input Protector" model
TRP-150? I find no reviews on eHam.
73,
Kent K9ZTV
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
What is the power level set at? The level controls and alc adjustments set
the modulation level, but in an Elecraft rig the power out is set by the
power control.
The other possibility is that the stations you are printing are running
much more power than you are and/or may have a higher noise
I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set
to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10
volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with
MIC GAIN on 1 and WSJT-X slider near zero.
BRET/N4SRN
--
Sent from:
I’m setting up WSJT-X 2.01 on a Win10 Surface Pro 6 laptop, using a Sabrent
USB Sound card and GPS USB receiver to sync time. I’m running 5W indoors on
a Elecraft AX1 antenna with supplied counterpoise on 20m. ALC flashes on TX
between 4-5 bars with sliders on Windows sound at 50%, WSJT-X 50% and
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