On 3/19/2011 9:34 PM, Paul Christensen wrote:
Major snip of excellent information
At least some AM stations operating with digital subcarriers are GPS
locked and can be extremely accurate. WMAL 630 KHz here in the
Washington DC area is one example. It's as close to 630 KHz as I can
measure
I certainly second that. Don has been more than just a resource for me, but
a huge problem solver. Not only is he tolerant of new owner's questions,
but he resolves them in a most professional manner.
Thank you Don,
Bob - K9OSC
--
View this message in context:
Many thanks to Ed KL7UW, Ron AC7AC and Paul W9CA for your helpful
comments on the K3EXREF.
I look forward to this product being available in due course and I have
my 10 MHz standard poised in readiness.
73 de David G4DMP
--
+ - - - - - - - - - - - - - - - - +
| David M Pratt, Kippax, Leeds.
Frank:
I have done quite a bit of operating on 6m SSB with 10 watts and a dipole (and
in the past with 2 watts and a dipole). Unfortunately I haven't had a K3 to do
it with, but one the current versions is a K2 and homebrew transverter.
My dipole heights have ranged from 12 feet to 30 feet,
Don is the best. He really cares about helping others!
On Sunday, March 20, 2011, K9OSC k9os...@yahoo.com wrote:
I certainly second that. Don has been more than just a resource for me, but
a huge problem solver. Not only is he tolerant of new owner's questions,
but he resolves them in a most
Elecraft List Test Bounce
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Please help
So if I understand correctly this soon to be option is basically
constantly adjusting the frequency of the K3 to be correct.
Or in other words a constant adjustment to the reference oscillator.
This could be a real nice to have, as I have been re-adjusting (zero
beating to WWV) to try and tune
Excellent posting by W9AC, a great reference, to be saved.
Now I wonder if it would be possible for someone to enlighten me as to
the need for such extreme accuracy? Is it because my K3 reads out to 1 Hz
but I can't really believe the absolute accuracy of that number unless I
get a K3EXREF?
The K3 is indeed sufficiently accurate for amateur use, but if you
already have a 10 MHz Rubidium, Caesium or GPS standard, Rick, then why
not couple it up your K3? It's just another refinement and helps to put
yours existing frequency standard to good use.
73 de David G4DMP
In a recent
the need?
Just because its there and something the import rigs dont have?
Mike AC5P
From: Rick Stealey rstea...@hotmail.com
To: elecraft@mailman.qth.net
Sent: Sun, March 20, 2011 9:45:59 AM
Subject: Re: [Elecraft] Installed K3EXREF
Excellent posting by
What's a GPSDO setup go for including an antenna?
73
jim ab3cv
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It is amazing what you can do with just a dipole on 6-meters when the band
opens - though not sure about mounting it inside your attic. I've been
using just a 6-meter dipole mounted on my chimney here in the Dallas area
for probably four years now. No problem working all over the country
The question of 1 Hz accuracy can get multiplied a lot in VHF work.
If one is talking about HF, it is hard to see the need. Personally, I
*LIKE* the idea of being spot on. It's not a technological justification,
but one I might spend a moderate sum to nail. If I was doing VHF or UHF
work, I
My reason for wanting one of them is to maintain a stable frequency on VHF and
UHF.
73,
Tom
N5GE
On Sun, 20 Mar 2011 14:45:59 +, Rick Stealey rstea...@hotmail.com wrote:
Excellent posting by W9AC, a great reference, to be saved.
Now I wonder if it would be possible for someone to
I'm guessing this is really useful for EME at UHF.
jim ab3cv
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Jim asked:
What's a GPSDO setup go for including an antenna?
73
jim ab3cv
You can put together a GPSDO system with 10 MHz output for less than $200.
Here's just one example:
Ebay item # 290322053618 By buying the items separately, you can sometimes
do even better on price.
The Trimble
On Field Day in 2009 I took a look at 6-meters. Mind you, my antenna is a
dipole, mounted inverted-vee style, with the apex at 45 feet that consists of
two wires fed in parallel, one cut for 80-meters and the other for 40-meters.
The RG-8 run is about 175'.
It's hot in Tucson in June so a
While this sounds interesting, has any progress been made for those of
us who have the TCXO to be able to program its printed offsets in the
firmware and have it act on them? The fields are currently there in the
K3 utility but as yet unused, as I understand it. I would be pleased to
have this
I ran a scan using Malwarebytes and Spybot SD and had no hits. I ended
up blocking k4...@aol.com at the server level and this seems to have
solved the problem. Sorry Harry that this happened to you. I've seen
this happen on other list servers before but never to this extent. If I
recall
I am waiting for the KAT500 like many others but I may still want to buy an
auto tuner for my K3 now if the KAT500 is a ways off. Actually, I may even
want two auto-tuners (or, maybe not). But, I also have my backup rig, an Icom
756 Pro III plus Icom PW-1 for any SSB I do with power. So, an
All,
I can't speak highly enough of Don. His knowledge of the
K2 and related is truly amazing. He, through a dozen or
more emails, helped me diagnose a crazy problem with my
KPA-100. Thanks a million Don !
Gene K1NR
K2 6xxx
On Sun, 20 Mar 2011 04:00:36 -0700 (PDT)
K9OSC
Don is an Elecraft GOD!!!
I am not worthy. Well, maybe a little.
Phil
Santa Fe
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I really prefer the LDG tuners over the MFJ. I have several and they
all work well. I also have an MFJ tuner so my comparison is based on
side-by-side operation. Right now, I have the AT-600Pro in line with
the K3/100 and the the Ameritron ALS-600. I have very good results
running into a 160
Dear Sir,
Can anyone help
I need replace the plugs (black and Red) on the end of my high power DC
lead, as they have over heated and now misshapen. I can source locally
if I knew what they are called or what series of connector they are.
Failing that I will need to order some replacements. No
There have been some homebrew GPS standards in the literature for those who
like melting solder. One was in QST back in July '98. AA engineering is
offering circuit boards and has the original QST article on their site
(http://www.a-aengineering.com/ )
I certainly agree with David that the K3
They are Anderson PowerPole connectors. They are available just about
everywhere including direct from Elecraft. Info on ordering from Elecraft is
in the manual.
73,
Ron AC7AC
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On
Gee guys, we have to work with Don. Don't swell his head too big! ;-) :-) :-)
I can just see Don right now - he is either blushing with embarrassment, or
grinning ear-to-ear.
You deserve the accolades, my friend.
Jack Brindle, W6FB
On Mar 20, 2011, at 10:15 AM, Phil Townsend wrote:
Don is
See URL:http://www.jrmiller.demon.co.uk/projects/ministd/frqstd.htm
73,
Lyle KK7P
I have no financial interest in James' products. I know from decades of
working with him that his stuff is meticulously engineered and
optimised. LJ
That said, IS there a GPS governed 10 Mhz source to be
Rick,
For the majority who only do CW/SSB on HF, adding the EXREF is
probably unnecessary. The TCXO-3 holds the K3 within 14-Hz on
28-MHz. The EXREF improves that by an order of magnitude to 1.4 Hz.
This becomes necessary for some digital modes like JT-65. That is
mainly used on eme on 144
Another benefit of the GPS-DO is that routine calibration to ensure
long-term accuracy is the responsibility of the U.S. Department of Defense,
and funded by U.S. tax payers. Unless there's a hardware-related problem
with the GPS-DO, calibration is someone else's problem and expense. The
Net is now on 14.317
Kurt
From: ph...@riousa.com
To: elecraft@mailman.qth.net
Date: Sat, 19 Mar 2011 13:58:24 -0700
Subject: [Elecraft] Elecraft SSB Net Announcement
The weekly SSB net will be tomorrow (3/20/11) at 1800z on 14.314 MHz. I will
be the net control station from western
I don't know if your antenna in the attic is due to antenna
restrictions or building construction, but here's a suggestion.
My K3 has a second receiver whose sole purpose is to
monitor six meters. It's antenna connection only appears
at the BNC jack on the rear of the K3.
The antenna
I am just beginning to play around with JT65-HF and I saved the various HF
frequencies to memory positions using the K3 Frequency Memory Editor. When
choosing the mode using the memory program, DATA is one of the choices. But
there are no specific data mode choices. As a result, the data modes
If you want to participate in the WSPR project you need to be within 1Hz.
73
Max/ZL4VV
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Post:
Hi all,
I listened to my QSOs with GW4BLE in the ARRL DX SSB test via his web
applet (very cool!) at http://gw4ble.dxlist.co.uk/index.php
IMO, my audio lacks punch. I'm using the MH-2 mic with comp at 26. TX
EQ settings: -16 -16 -12 0 0 +6 +6 +4.
Any thoughts on how to improve the punch?
My
Assembly was absolutely fool proof - except that I was the fool when I could
not find one of the small parts bags that had slipped under a cardboard box
flap. Fortunately, I kept looking and found the errant parts so that the build
could be finished and the rig on the air in two days.
Thanks everyone,
Thank you 'heaps and bunches' all for the very nice remarks. But I
would certainly not attempt to elevate myself to divinity status :-) --
I do hope to be able to continue to be worthy of your appreciative
comments for some long time.
I am always willing to share those
I believe that MH2 needs bias - I assume you had that set ?
73 de M0XDF
--
Do not pray for tasks equal to your powers; pray for powers equal to your
tasks. -Phillips Brooks, bishop and orator (1835-1893)
On 20 Mar 2011, at 21:06, Barry wrote:
Hi all,
I listened to my QSOs with GW4BLE in the
Yes.
Barry W2UP
On 3/20/2011 3:39 PM, David Ferrington, M0XDF wrote:
I believe that MH2 needs bias - I assume you had that set ?
73 de M0XDF
--
Barry Kutner, W2UP Lakewood, CO
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Barry,
How far up is the ALC meter kicking. It should be showing 5 to 7
bars. If it is lower than that, go back to the beginning and adjust
your mic gain - first set compression to zero, then set TX TEST so you
don't bother others on the air, and adjust the mic gain until you
illuminate
If you want to participate in the WSPR project you need to be within 1Hz.
73
Max/ZL4VV
Actually, No. You just want to -drift- less than one Hertz during your
transmission period. Absolute accuracy is not required. A stable transmitter
is.
73,
Bruce, N1RX
Right. The WSPR receive window is a couple of hundred hz wide. Your freq
doesn't have to be accurate, but your clock should be within a second of the
right time.
BTW, you can use WSPR to calibrate your rx and measure freq within a hz or
so; Dr. Taylor's instructions are in the latest
The K3EXREF is in field test now, as far as I know. It might be a
little while before Elecraft puts it up for sale.
Extreme accuracy probably has two psychological and one scientific
source:
- The need to put the K3 dead-on frequency is reassuring to folks that
aren't sure it stays that way
Thanks for a good answer, Ed. No, I was not asking for someone to
design and market a 20 - 500 KHz transverter (for me). I would rather
do it myself, but lack the time at present.
Will look at the link you posted.
Thanks and 73,
matt W6NIA
On Fri, 18 Mar 2011 08:21:08 -0800, you wrote:
The
Hi everyone,
After trying for the past few months to learn CW I have finally decided to
write the idea of me learning CW off as a bad idea as it appears that I
rythmically challenged and just cannot get my head around it. (I'd also make a
very bad Catholic too but lets not go there!) :-)
So,
Listening on phones here, it seems to me your audio lacks high-frequency
emphasis. The other signals have much more than yours, and crisp highs are
critical to punch (which is why the YL's used to have it over us on the
old AM xmtrs ;-)
Ron AC7AC
-Original Message-
Hi all,
I listened to
Hello Barry!
Any thoughts on how to improve the punch?
Different voices have different amplitude levels at the pitches that
penetrate, so the appropriate settings are all a matter of testing and
adjusting and testing again.
My callsign was pre-recorded and stored in the K3 DVR. When
On 3/20/2011 3:28 PM, Don Wilhelm wrote:
ow far up is the ALC meter kicking. It should be showing 5 to 7
bars. If it is lower than that, go back to the beginning and adjust
your mic gain - first set compression to zero, then set TX TEST so you
don't bother others on the air, and adjust the
This was an excellent explanation.
I got a Trimble Thunderbolt off eBay for less than 200 bucks. It came from
China and came with an antenna and power supply. If you are going to get one
of the ones that come from China, make sure you get the power supply with
it. The domestic Thunderbolts
Speaking of band edges
During the recent ARRL DX SSB contest, there was a station operating on
7127. Because of the lower SB extending to 7124 (assuming 3k bandwidth) he
was operating out of the US phone band. He was a European but he was working
simplex. I bet there was an OO sitting
On Sun, 2011-03-20 at 12:00 -0400, elecraft-requ...@mailman.qth.net
wrote:
Re: [Elecraft] K3/10 in Attic Looking for Six Meters
I have a similar setup. I have a ~120 ft dipole made out of ribbon
cable strung under my eaves, and wrapped around the sides of the house.
Not ideal, but it is nearly
Jerry,
RE: 14149.9 kHz ---
I would not be comfortable cutting it that close in USB unless I was
absolutely certain there was absolutely no energy in the SSB audio 0 to
100 Hz range. I would not trust any transmitter (no matter how good) in
that regard. Keep it all within the band limits to
Most of the applications where extreme accuracy is really needed are
transverters at microwave freqs. That is a lot of the feedback
received here. I believe that. It makes the most sense.
A couple of PPM is plenty good for HF, imho. But there are those of
us that have the frequency fetish.
Good Evening,
The first net went rather well. Some fading but mostly signals were
good. The second net was plagued by RTTY signals. I found an open
frequency but then got zero beat a couple times by RTTY stations. I
wonder if they were running above 7105 kHz? There may prove to be
Well, we started the net on 14.314 (our usual frequency). We quickly drew
heavy QRM, with harangues to get off of their frequency. I got about 8 of
our stronger stations checked in, but the situation was deteriorating
quickly. I looked up band, found quiet at 14.317 and took the net there.
My new K3 works great on CW - love the way it sounds the intuitively
logical controls - but I'm trying to figure out what part I need if any to
connect my Heil Pro headset, with a PTT hand trigger. I see a larger stereo
plug coming from the PTT switch a small one coming from the heaset (1
I'm having a similar problem after installing the KNB2.
So, I triple checked component location and applicable polarity and all
solder joints for bad joints or bridged/shorted solder pads; removed,
checked and re-installed the 2 bandpass toroid chokes, checked the ID
number on the caps.
Checked
Yes, you can do it all from the back panel and ignore the 8-pin Foster
connector on the front panel.
You'll need something to bridge the 1/4 phone plug on the Heil hand trigger
to an RCA plug for PTT.
Not a dumb question.
I sometimes prefer the front panel headphone jack because I like pulling
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