I noticed a similar issue a couple of weeks ago during the CQ WW, with
whatever firmware I last installed a few months ago. I was working my way
slowly up the band calling stations and not retuning the ATU each time I
called. Presumably because of the way the ATU stores settings per frequency
I had a similar problem. I returned from St. Croix on Wednesday where I had
antenna issues and had to use the ATU most all of the time. When I set up
the K3 here in Ct. I noticed high SWR on 15 meters, where normally, with my
steppir, there is no SWR. Shut off the ATU and everything was o.k. I
Reviving this thread, because I don't think we ever got a comment from
the mother ship. The ability to feed monitor audio to LIN OUT without
having it in headphones or speaker is very useful for contesters. Most
SO2R ops prefer never to hear their own CW, but recordings that *don't*
have it
What the heck is a orthogonal antenna? Would someone define it or give an
example? I have Googled it but it is all mumbo-jumbo to me.
Lee Buller
K0WA
Still learning after all these years!
In our day and age it seems that Common Sense is in short supply. If you
don't
have any Common
Lee,
orthogonal = vectors that are perpendicular to each other.
So an example of orthogonal antennas would be one horizontal and the
other vertical.
73,
Don W3FPR
On 11/12/2010 9:32 AM, Lee Buller wrote:
What the heck is a orthogonal antenna? Would someone define it or give an
example?
This is subject to much correction from people who are smarter than me, but my
oversimplified description is that an orthogonal antenna basically consists of
three loop antennas oriented in three planes that are at right angles to each
other (X, Y and Z axes if you remember your basic
OK, I guess the ham application for an orthogonal antenna would be to use two
loops at 90 degrees to each other. With the electronic trickery I mentioned
below you would have yourself a dandy direction finding antenna. Great for
transmitter hunts and tracking down jammers and other bad guys.
Could someone please re-past the suggested TX EQ for the K3 when using the
Yamaha CM-500 mic? My settings seem to have gotten reset somehow.
Thanks.
Tom - W4BQF
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Tommy,
Not a direct answer to your question, but if you download K3EZ, it becomes very
easy to tweak both RX and TX EQ settings. You can then test in real time using
the monitor or DVR. I think it's better doing it this way as you can tailor
settings to your voice rather than basing it off
While on a reflection jag on diversity out on Core Banks...
There is one thing that would help diversity on a noisy band. We
already know about needing to lock all the conversion frequencies.
The other would be an option to run a composite AGC that controls BOTH
receivers that takes the most
On 11/12/2010 7:43 AM, Tommy Alderman wrote:
Could someone please re-past the suggested TX EQ for the K3 when using the
Yamaha CM-500 mic?
Rear panel, bias on, Menu Mic Gain to low setting. TXEQ -- set two
lowest bands to their minimum setting. Depending on your voice, you may
also want a
I had a boss at JPL that used a similar saying: If its good enough
to do right, its good enough to do imperfect, meaning to finish it
versus making it perfect but never getting there.
I have a Drake MN2000 tuner waiting for a 8877 to be
built. Actually, I will use it with the CCI 300w sspa.
On 11/11/2010 9:59 PM, Alan Bloom wrote:
Milt was a realist about project management. He was very aware that
engineers have a tendency to try to design everything to perfection,
regardless of the schedule or cost. He had a sign over his desk that
read, Good enough is better than perfect.
I had contacted support at Elecraft a short while back about losing my right
channel of audio. I was certain that I had only placed stereo 1/8 inch
plugs into my back panel speaker jack, but it did sound like I might have
somehow damaged an audio IC. As my headphone jack on the back and front
I'm currently trying to run down a similar (?) audio problem. I
upgraded software (4.14) and then set up for SS CW. It seemed that I
had reduced audio on the right channel. After the contest I started
setting up for SS SSB and I'm not TX in SSB, unless I whistle and then I
get a bit of TX.
4.17 is in recall status, with some number of issues reported by beta
testers. There did seem to be a bit of tip-of-the-iceberg to it all.
4.18 or whatever surfaces is not out yet.
73, Guy.
On Fri, Nov 12, 2010 at 1:52 PM, Forrest Hudspeth wa3...@gmail.com wrote:
I had contacted support at
I wonder if someone would check my understanding of interpreting broadband
noise on the P-3 display.
I have gone through the P-3 calibration procedure on 40M as well as
calibrating my S-Meter on the same band.
Now when looking at band noise I see the tops of the yellow line at around
the
Just as a heads-up for anyone interested in this subject -- in the December
QST just now arriving in subscribers' hands, there is a cool article on X-O
circular polarization (CP) antennas. The author (Eric Nichols, KL7AJ)
discusses the fact that all F-layer ionospheric propagation is actually
I began using Drake equipment in 1977. Between then and 1983 I spoke with him a
few times regarding repairs and trouble shooting of the 4C-Line equipment and
later the 7-Line equipment I had. I still have the TR7 and R7.
Buddy was a nice man and easy to deal with.
I'm sorry he's left us.
73
If the K3 detects it is drawing too much current in receive mode, it
disconnects the right speaker channel to help prevent damage. That is
the relay you heard click. It also sets SPKRS=1 to indicate it has
disconnected the right channel speaker. The most common cause of
over-current in
We used most of this at N4A this summer, see my other post for details.
Actually converting this to circular polarization at the RX end is
self-defeating because the rotation of polarization is itself
rotating, not at all steady. If listening to the two antennas
separately in diversity, one is
It's something that I would like too.
Using two antennae on 2m there are frequently occasions where I would
like to listen to the sub rx in both ears. For now, I achieve this with
external switching.
73
Ian
G0AFH
On 11/11/2010 23:10, David Lankshear wrote:
As Richard's message seems to have
Reviving this thread, because I don't think we ever got a comment from
the mother ship. The ability to feed monitor audio to LIN OUT without
having it in headphones or speaker is very useful for contesters. Most
SO2R ops prefer never to hear their own CW, but recordings that *don't*
have
N4BP wrote:
Reviving this thread, because I don't think we ever got a comment from
the mother ship. The ability to feed monitor audio to LIN OUT without
having it in headphones or speaker is very useful for contesters. Most
SO2R ops prefer never to hear their own CW, but recordings that
N4BP schreef:
Reviving this thread, because I don't think we ever got a comment from
the mother ship. The ability to feed monitor audio to LIN OUT without
having it in headphones or speaker is very useful for contesters. Most
SO2R ops prefer never to hear their own CW, but recordings that
I'm not quite sure how this suggestion would work. My priority would
simply be to have monitor output on the LIN OUT without having to turn
up the monitor in my headphones. Is it still on the list?
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The
Good afternoon to the group. How do I configure the K3, P3 and SteppIR
controller so that the K3 P3 will cause the SteppIR to change bands. Before
the P3 I had no trouble controlling the SteepIR with the K3. 73, Steve
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Elecraft
Hi Herb,
I'd have to open up my L75 to be sure, but I believe all I did was etch
away some of the copper around the outside edge of the board (to prevent
arcing around the edge of the board) and then sprayed it with Q-dope to
prevent arcing to the air (corona discharge) from the edges of the
The effective bandwidth of the P3 is one pixel on the display.
(Somewhat more than that for spans 5 kHz.) Each pixel is about 1/450
of the span.
+/- 10 KHz span: P3 resolution = 20,000/450 = 44.4 Hz
K3 bandwidth = 2700 Hz (stock filter)
10*log(2700/44.4) = 17.8 dB
You got it right.
We're hoping to go to beta by tomorrow with K3 rev 4.21, which is
currently being field tested. If you had issues with 4.17 or 4.18 and
would like to help us ensure that everything is now working, please
email me directly and I'll send you 4.21.
Tnx
Wayne
N6KR
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I built my KX1 about a year ago (#2199). Everything tested out and worked
fine. It's been on the shelf until about two weeks ago. I finally got
going on cw this past few months (I love my K3), then this past few weeks
made a few contacts with my KX1 (what a thrill that was!). It's a wonderful
On 11/11 Eric answered my question in my original post. However it
does not appear to me that turning off averaging will make the display
look or act like the ProII display. At the moment it appears that an
average value of 5 is about right IF you use the finest tuning,
(3.526.955) for a
Oscar,
Remove the board from the KX1 top cover and check to see if the MCU chip
is firmly seated in its socket. The narrow portion of the leads should
be fully engaged with the socket. It takes a bit of pressure to seat
this IC. Use your thumbs on the top of the chip and your fingers
Well, I received my replacement parts today, but so far in spite of my
best efforts, I've been unable to desolder the K12 relay from my RF
board. I've used a combination of solder wick and a pump, and I can
see though the holes at this stage, but I still can't get the relay
free! What's
If you can see right through the holes, grab each pin and wiggle it. Even
though there's no visible solder left, the thin film tinning each hole and
the corresponding film on the inside of the plated hole can be surprisingly
strong. Wiggle each pin separately and so it actually moves around in the
Hey there.
I had to replace a relay a little while back and what I did was used a set
of pliers and crushed the top of the relay to the point where I could get in
and use flush cutting pliers to cut the bulk off. I was very careful not to
damage anything on the board or other components. Once
Hello group,
Is there any hardware limitation preventing the design and implementation of
an internal UHF transverter? In this day and age of DC to Daylight boxes,
I'm surprised that Elecraft only has a VHF module available for the K3. For
me, 2 meters isn't so useful in NYC. If given the
I had tried this a couple of times, but I kept at it and literally
just a couple of minutes after sending my email, finally I worked the
relay loose. Now I've replaced it, and 40m is working again!! I get
good transmit power and strong receive audio.
Thank you once again Don, that's twice
Yep, wishful thinking I reckon.
There are two options I would not contemplate, 2M and 70CM and for that
matter any higher frequencies.
DC to Daylight radios might be attractive until something goes wrong, then
your 'all in one box' system CAN take you off air completely and that for me
would be
That's a good point Gary. One big difference and advantage with the K3
though is its modular construction. If an internal transverter were to go
kaput, I imagine that one could just disable it in the settings until its
repaired or replaced. HF would still work fine. That may not be the case
Owen,
Glad to hear you were successful. In the future, the key is to waste
the part, it is of much less value than the board. The one who posted
the advice to crush the relay with pliers (or whatever works) is right
on the money. Preserve the board at all costs.
73,
Don W3FPR
On
I have a new ISP and e-mail provider that appears to be free of the
problems related to my old service, which was often black-listed or
blocked by some carriers.
Many messages, both to and from me, simply vanished.
Hello James and Gary,
It is a good idea of K440XV. However, we have to look at the price as well.
If
you just want something in the FM mode, any price near the K144XV could be
expensive. Any FM mobile rig will give you the answer.
If you go for a real UHF based station, the frequency and
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