ELEVATED RADIALS: I think Joe hits it on the head here. A vertical with
elevated "radials" is essentially an OCF dipole. There is no particular reason
for the "radials" to be a quarter wavelength. They should be whatever length
lets you resonate the antenna with a feed impedance you can live
Really? Sent me the money and I'll order whatever you want for you...
Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
Owner - Operator
Big Signal Ranch
Staunton, Illinois
email: b...@wjschmidt.com
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun.
Good Evening,
After last week's warmer than normal temperatures we are back to
normal again: rain with highs in the low 50s. It was nice but it is
easier to work in the mist. The loggers are now keeping better hours.
They are not starting at 3 AM but rather 5 AM. Farmer's hours are
somet
On 14050 kHz at 2200z:
NO8V - John - MI - K3 - 820
AC5P - Mike - OK - K3 - 2170
AB9V - Mike - IN - K3 - 398
N0TA - John - CO - K3 - 994
K0DTJ - Brian - CA - K3 - 4113
N0DA - Dan - OR - KX3 - 285
W8OV - Dave - TX - K3 - 3139
On 7045 kHz at 0100z:
N0TA - John - CO - K3 - 994
K6PJV - Dale - CA
Well I do hope there will be a version for 10M perhaps that will install
within the K3. Much as it would be nice to have I am not going to buy more
boxes needing to be plugged in, cabled or whatever.
Whilst I understand some folks have space available and can wire in as many
boxes as are available
Raise the price of Elecraft products 15% and give everyone two hats and two
shirts at the time they order $250 of material - this ought to work for
those who desire "free" stuff.
__
Elecraft mailing list
Home: http://mailman.qth.net/mail
Hello
The user manual was just uploaded to the Files section of the Yahoo KX3 user
group. It will be available on our website www.QRPworks.com soon. We had
many visitors to our booth in Dayton requesting more information on what the
Ham Central Terminal does and how it works. The manual does a
Tomorrow night is the May 2013 edition of the Run For The Bacon. That friendly
lil' ol' QRP Sprint sponsored by your friends at the Flying Pigs QRP Amateur
Radio Club International. Join us for a spell to have some fun and to say "Hi"
to friends, old and new.
If you're coming back from Dayton
I like a guy who can get to the essence of an issue.
On May 18, 2013, at 2:34 PM, "W4SK" wrote:
> How can ya'll worry about this when the burning issues of free hats and
> discounts remain unsolved?
> -W4SK
>
> John T. Gwin
> jtg...@comcast.net
> judgejohng...@
On Sat, May 18, 2013 at 4:06 PM, wrote:
> I have recently noticed S7 birdies on 7038,10122,14030,21022 and 28045. Not
> sure if they always been there, or it is just absense of decent CW signals on
> the band which make them stand out. Anybody else have this problem?
At least some of those (
On 5/18/2013 4:06 PM, n...@aol.com wrote:
I have recently noticed S7 birdies on 7038,10122,14030,21022 and
28045. Not sure if they always been there, or it is just absense of
decent CW signals on the band which make them stand out. Anybody
else have this problem?
I have birdies, just not on t
I have recently noticed S7 birdies on 7038,10122,14030,21022 and 28045. Not
sure if they always been there, or it is just absense of decent CW signals on
the band which make them stand out. Anybody else have this problem?
__
Elecraft m
I attended the RTTY forum today at Dayton, and one of the presentations was
from Larry, K8UT about a mechanism that he uses when doing S&P in RTTY Contests
-- he calls it "Adaptive RX", and it's described in his program documentation
for a utility that he wrote to control his Icom rig -
http:/
Thanks to all who responded. I'll be in contact with a few of you.
73,
Fred
Fred Cady
fcady at ieee dot org
> -Original Message-
> From: elecraft-boun...@mailman.qth.net [mailto:elecraft-
> boun...@mailman.qth.net] On Behalf Of Cady, Fred
> Sent: Thursday, May 16, 2013 5:07 PM
> To: Elec
Jim, it was a ground loop problem caused by the metal spacer. You'd have to
have a very early K144XV for it to be present. Here's how to tell if yours
needs modifying as described in the mod instructions:
This change was incorporated into the K144XV assembly process in September,
2010. All K144XV'
I got my hat, a KX3 Kit for my colleague at the office, a really good chat with
everyone on the stand, nearly went for the P3 but managed to resist.
Even discussed with Eric about them producing a 70MHz transverter, EU
Elecrafters and others should let them know the degree of interest.
Great fr
How can ya'll worry about this when the burning issues of free hats and
discounts remain unsolved?
-W4SK
John T. Gwin
jtg...@comcast.net
judgejohng...@wilsoncountytn.com
- Original Message -
From: "Ron D'Eau Claire"
To:
Sent: Saturday, May 18, 2013 2:3
Will someone please describe this "center spacer" so I can verify whether it
is in mine or not?
Was it an active part of the circuitry? If I have it in mine can I just
remove it without any other modifications? Why does removing an inactive
part have any effect?
73, Jim KG0KP
-Original M
AW, quit your belly-aching about the Elecraft specials
at HAMVENTION; typically it is less than 5% off some
of the items - - not from whatever you purchase - -
- - - -
Hamvention entry is $ 20 (pre-registartion) add to that
the transportation to get there (distance 200 miles for
me ~ $16 in petro
The weekly Elecraft SSB net will meet tomorrow at 1800z on 14.3035 MHz. I'll
be net control from Oregon. See you there.
Last Sunday's net was smallish, with 24 participants.
Participants from the 5/12/13 net follow:
Station NameQTH Rig S/N
N6JW
Joe, the article I referenced clearly said to use 1/4 wavelength radials
when they are elevated. That's agrees with everything I've read and done
over years as well.
I'll stand behind that SteppIR article as showing how to put up a vertical
that avoids the worst pitfalls. (And it's basically a re
Hi Brian,
this measure point is the output terminal of a 5V voltage regulator (U12
MC7805ACT).
A value of 445 ohms is not alarming. A matter of tolerances in all parts
connected to this point.
But I expect Elecraft will react too.
73s, Twan - PA0KV
Message: 14
Date: Sat, 18 May 2013 10:32
The SteppIR information is overly simplified. For the best current
analysis of elevated vs. on ground radials see the extensive data
from N6LF - http://www.antennasbyn6lf.com
In particular, read the comments on elevated radials:
http://www.antennasbyn6lf.com/2011/02/comments-on-elevated-radials
Thank you for answer,
The spurious signals are not only visible on P3 but perfectly audible in the
speaker.
I have also tried turning P3 off and unplug it but the signals are always
present and audible.
Fausto IK4NMF
- Original Message -
From: "Tom H Childers"
To: "Fausto Coletti"
C
OK, I read the archives. The consensus seems to be that DMM's can have
inaccurate measurements in this circuit. I powered up, and no smoke.
Everything lights up like it is supposed to. Onward!
Brian
*Brian F. Wruble, C.F.A.
*70 is the new 40.*
*
Mail: 1107 Key Plaza, PMB 447 Key West, FL 33
Yes, I realize that I do not need the SVGA card to compare them. Wasn't
thinking it through.
I first looked at the W3YY board, but remembered I had the other unit
somewhere around here, did a search and found it. With a DB15 Y (I also have
the PR6) cable and a 15 pin shell, I can easily const
Hello all,
There are a few people who would like an electronic format to put on their
e-readers or whatever. I have generated an "epub" format but don't know how
that will work with ipad or other readers (kindle, etc). I'd like a couple of
kind folks who could test it out on their readers and le
At 08:37 AM 5/18/2013, Joel Black wrote:
Is the only benefit portability?
Thanks,
Joel - W4JBB
Hi Joel
As you mentioned ... physical, portable, and safety issues aside the
difference between raised and buried radials is the difference in how
they perform their function; that is how they
Brian, you are fine. The manual says "The following resistance checks
confirm that the main power busses in the K3 aren't shorted to ground."
Orienting your leads one way shows a very high value of resistance, so there
is definitely no short.
You will encounter this situation a lot in building an
On 5/18/2013 1:29 PM, Jim Leder (Hotmail) wrote:
> But, I do not have a P3 SVGA card. I know how well MMTTY/EXTFSK
> works. I've used it. The question is: is the native K3 FSK/D decoder
> as good or better than MMTTY?
You *don't need* the P3SVGA to compare the decoder and MMTTY. The SVGA
uses
Yes, that is the answer I was wondering about. I have had other K3 owners
pretty much tell me the same thing, but thought to ask the group. As Iain
suggested, I could compare both decoders without the SVGA card, and probably
will (sorry, Iain, I misunderstood your reply). But, I am leaning towar
72/73/Scotty/NUØS
Original Message
Subject: Re: [Elecraft] OT: Elevated vs. Buried Radials
From: Scotty Long
To: Joel Black
CC:
Hey Joel I use a Hustler BTV4 as my main antenna as well as an inverted L for
80m and the WARC bands. The Hustler is ground mounted with 60 buri
Hi Joel:
This is a very good summary that clearly shows the difference between
elevated and in-ground radials. (See Figure 1 on the second page)
http://www.steppir.com/wp-content/uploads/2011/10/radial-systems-for-vertica
l-antennas.pdf
Bottom line, if you can install a LOT of in-ground radials
Joel,
Very simply put. When you have elevated radials, > 0.1 wavelength, your system
uses the radials as intended. However, with radials on the ground, your system
will see the vector summation of the radials and the ground. What that means is
your ground losses will be greater with ground base
Spoke with Eric earlier today. The 6/10 meter per-amp is under way. He hopes to
have them available in two to three months. I don't have pricing info.
>
> On Fri, 17 May 2013 16:42:01 -0400, Jack Berry
> wrote:
>
>> Has there been any information of Elecraft producing a 6+10 meter ore-amp?
>
That sounds like a P3 cable problem. There have been reports of
faulty BNC cables supplied in a batch that was bad from the supplier.
Try contacting Elecraft and describe the problem to them.
Also while you are waiting to call Elecraft over the week-end, make
sure that ALL of the cable routing i
But, I do not have a P3 SVGA card. I know how well MMTTY/EXTFSK works. I've
used it. The question is: is the native K3 FSK/D decoder as good or better than
MMTTY?
Before I charge off and drop $300 on the SVGA card and monitor, to use mainly
for RTTY, is it worth it? I am content with the P3, a
My K3 fails the test on page 45 of the assembly manual. The resistance
from a pin on U12 to ground is 447 ohms. One of you asked a question ...
was the reading the same with the leads reversed? The answer is no, that
reading is about 4.5 kohms, and it acts like the meter is charging a
capacitor
On Sat, May 18, 2013 at 9:53 AM, Jim Leder (Hotmail) wrote:
> I am trying to decide if I should invest in an SVGA card for my P3. I know
> about all the nice features that the SVGA card will give me, but I have been
> told by a top contester that the K3 decoder is not as good as MMTTY. I like
>
I am trying to decide if I should invest in an SVGA card for my P3. I know
about all the nice features that the SVGA card will give me, but I have been
told by a top contester that the K3 decoder is not as good as MMTTY. I like on
occasion to do FSK/D, and have been using the built in function o
Today I installed the module K144XV. It all works ok but I noticed several
spurious signals received, in particular each 12.5 kHz at a level
of around -140 dbm indicated on P3, plus some pretty strong signals such as at
144.4165 to S7 and others.
Obviously signals are present with the antenna di
Okay I published a rant when maybe I should have thought it through a little
bit beforehand. It seems there are a lot of very strong Elecraft supporters
as well as a lot of frugal hams. I admire a company who gets the customer
service thing right and it's obvious from many of your comments Elecr
Gentlemen,
I kind of get the feeling that because elecraft is such an open, easy to
talk to company, some of us may take a little bit advantage of their
openness.
these guys have done what very few companies in recent times have been able
to do, and the results speak for themselves. AND they did
You've obviously not read Goldratt's "The Goal", or the new "The Phoenix
Project" that references the former heavily.
http://itrevolution.com/books/phoenix-project-devops-book/
I will agree on waiting for the quality, "superior" product, though. :^)
Jeff KC9WSJ
On 5/18/2013 5:41 AM, MontyS w
On 5/18/2013 8:47 AM, Alan Bloom wrote:
One of the project managers at Hewlett Packard used to have a sign on
his wall: "Quality, speed, cost. Pick any two."
I once told an Air Force Logistics Command general, "Good, Fast, Cheap.
Pick 2 Sir." He ultimately printed and framed it for his wal
One of the project managers at Hewlett Packard used to have a sign on
his wall: "Quality, speed, cost. Pick any two."
Alan N1AL
On 5/18/2013 3:41 AM, MontyS wrote:
New products have conflicting development objectives of quality,
timely delivery, and cost.
You can specify a deadline, but
Hi Joel,
The ground beneath the antenna can have two effects:
1. It can become a part of the antenna's equivalent electrical circuit.
2. It has an effect on the antenna's far field due to "reflection" of the
antenna's field
By burying the radials and mounting the antenna on the ground, you inc
I am assembling K3 s/n 7394. I have come to the step on page 45, DMM
resistance measurements. The resistance between a terminal on U12 and
ground measures 445 ohms. It is supposed to be >500 ohms. I am using an
accurate Fluke DMM.
What am I looking for?
73 de Brian W3BW
*Brian F. Wruble, C.
Hi Joel,
You've asked "why are elevated radials so important". If a vertical is
elevated above ground (perhaps on a post or on a roof) elevated radials are
a necessity because in order to use ground mounted radials you would have to
run a long length of wire down to the ground mounted radial field
> Personally, I do wonder about the new fangled "no radials required"
> antennas. But, I have an old R5 and it works well.
The "no radials" antennas are basically a vertical OCF - the short
decoupling radials are the short leg and the vertical is adjusted
through the use of traps, stubs and/or l
So we either have to accept the quote of Chen on the receive side
(additional data exists that Chen has?) or the QST author got it
wrong.
Chen has written extensively on RTTY filtering both on his web site
as well as in his postings on the RTTY list. In addition, Chen has
provided links to wo
The cleanest installation is to put the radials in the ground - but, not
portable at all. The idea is a capacitance connection with the earth. I
have used welded steel cattle fence in the past - I build a mat that is
about 30 or 40 feet out from the base of the antenna.
For raised radials - th
Back in ye olde days of RTTY when we used mechanical printers, the
thinking was that the minimum bandwidth required was that sufficient to
pass the 3rd keying sideband without too much attenuation or time shift.
(This was way before measuring group delay was something that could be
done other t
A lot of talk has been going on about radials on the KX3 Yahoogroups
Reflector, but there is so much FOD on that reflector, I usually delete
most of the messages. Although it may have been mentioned there, I have
probably missed it.
Other than for portability, why are elevated radials so impo
Ed et al,
As I said in my posting the receive filter info came from a quote
attributed to Chen in the QST article. I pointed out that the link
supplied by QST was not for receive.
So we either have to accept the quote of Chen on the receive side
(additional data exists that Chen has?) or th
Followup on the iPhone as a wired remote control for K2:
Thanks to the redpark.com cable, it's working - got a prototype iPhone app
doing reads/writes directly with no need for Wi-Fi, Bluetooth or other
devices inbetween (well there is an embedded controller inside the cable,
but the cable still j
I can't believe u guys are bugging Wayne for hats. Do u have any clue what is
involved in preparing and managing a trade show? Give it a rest and wait until
he gets back to the office.
Note to Wayne:
Extending your brand through promotional items makes good sense financially and
from a marketin
New products have conflicting development objectives of quality, timely
delivery, and cost.
You can specify a deadline, but you then must be willing to sacrifice quality
and spend money to meet the deadline.
You can have a fixed budget, but then quality and development time must be
flexible.
Yes I'm waiting also if not the combo then at the very least a 10m one, 6m
preamps are not that hard to find but I would buy the combos for both of my
K3's.
73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2
-Original Message-
From: elecraft-bo
Wayne could I pre-order 3 left over hats from Dayton when you get back? If
so I would even prepay for them.NOW
73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-bou
I think that is a reasonable request also some will never attend due to
health issues either.
73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net]
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