Peter, yes, I am sure many have thought about this. For something so
relatively obvious, one has to wonder why it hasn't already been done.
Perhaps the rapid changes in typical contest speech makes it hard to get an
accurate enough fix on the spectrum, unless one asks the other party to say
a long
Hi Erik,
It's R & D. Anything could happen.
I agree it's obvious but so are many things we see around us that weren't
there a short time ago.
The fundamental (vocal cord vibration frequency) changes constantly but not
particularly fast (it is a mechanical thing we do with our muscles). The
con
Has anyone done a check on the input impedance of the receive antenna port? My
crude check showed around 33 ohms. Just curious. 73 Mike K4PI
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://m
Hello Peter!
An interesting algorithm for automatically tuning an SSB signal was
described at length in the Jan 1999 issue of QEX.
73,
Lyle KK7P
This is an algorithm I've contemplated writing many times
At Field Day I have observed a number of operators operating SSB. I have
noticed
Hello friends.
I have worked on algorithm about SSB auto-tune and is a reality. I
have tested code using PC simulation software (Matlab) and using
realtime coding using C language. Just now i have several students
implementing such algoritms on BeagleBoard xM, Raspberry-PI and
STM32F4 boards using
I did the mod shortly after it was described here. The change in AGC behavior
was not subtle. Yes it improved copy in pileups when I was the DX. I found it
a bit difficult to cope with, though, because the changes in audio strength
amongst the stations was more than my ears have an appetite
The P3's waterfall itself is an excellent visual tuning aid for getting very
close to the the ideal frequency. Followed up with QRN filtering techniques,
tuning for best reception is easy. The K3 - P3 is a great combination.
Now, if the P3 was a touch screen (ala iPad) and all the K3 function
I would like to see my transmitted signal on the P3 that's about it.
Fred/N0AZZ
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of C L Jonkers
Sent: Tuesday, February 05, 2013 9:28 AM
To: elecraft@mailman.qth.net
Subject: Re: [
If you have trouble deciding whether you are tuned dead on, switch
sidebands. The pitch of the voice should remain exactly the same. If not,
you were off frequency.
Doing it automatically sounds like an interesting challenge for a DSP
programming enthusiast, but hardly necessary for good SSB rece
Nice - This could be very handy
On Tue, Feb 5, 2013 at 1:54 AM, SHIBUYA SHINTARO wrote:
>
> Dear KX3 owners,
> I want to share KX3 command Visual index.
> Please visit to my blog and download it.
>
> http://jf1vru.blog65.fc2.com/blog-entry-348.html
>
> Appreciate your comment.
>
> JF1VRU Shibu
>
Interesting site/product/service
Remotehamradio.com
You a fee you can remote into a number of sites to operate remotely.
They will send you on a lease an K3/0 (hence the elecraft connection).
But the cost is really high
I thought I shoot this out. I am not planning to subscribe and have no
Tnx Andy for the info. I decided against installing the additional caps. I
am using 4.61. The AGC seems to work fine. Will have another chance to check
it at KP2M for the ARRL SSB upcoming contest.
73,
N2TK, Tony
From: Andrew Catanzaro [mailto:aca...@wi.rr.com]
Sent: Tuesday, February 05,
Hi - my first message, so please advise if I should address my help
request to someone else. I was moving up the bands to look for sounds
of activity, and when I hit 18 mHz there was a "pop" from the rear and
the panel lights went out.
Receive and transmit functions seem ok for CW. I haven't tri
I'd like to thank Rich, K1HTV, for sharing his macro to allow assigning
multiple macros to the same button. I have been using it for some time to
choose power levels and it works great. That was clever, Rich.
It can be found in the archives if anyone is interested.
Rich, n0ce
You might want to try setting the LCD and/or LED levels again, using MENU. If
the panel LEDs and LCD backlight both come on when you power up, there isn't
anything wrong with the hardware.
73,
Matt Zilmer
Consultant - Product Management Dept.
Magellan Navigation / MiTAC Digital Corp.
Tel: (909
We had a good net today. There were 38 participants over a 26 minute net.
Here is a list of the participants:
Station NameQTH Rig S/N
N6JWJohnCA K3 936 (also
KX3 515)
KB6GRon
This is a message I prepared a while ago but never sent. Now that Mike K4PI has
brought up the subject I thought this might be of interest without increasing
the traffic too much.
We don't often pay attention to SWR in a receiving situation. If you have an
antenna analyzer you can measure the
That was not a correct price. He must have thought you were requesting
something else. The rubber keypad is certainly much, much lower in price.
Note that removal of the old keypad and installation of the new one
involves making sure all of the adhesive from the original keypad is
removed from
Of course, it should have said that "we had a good net Sunday". Sorry.
Phil
On Feb 5, 2013, at 12:05 PM, Phil Shepard wrote:
> We had a good net today. There were 38 participants over a 26 minute net.
>
> Here is a list of the participants:
>
> Station NameQTH R
I would like to see the index,
it looks like a good idea.
but neither of the two computers give me a good idea of what it looks like.
When I try to download the high def PDF it does not show up.
I like the idea of the high def PDF by the way.
If there is some one who can forward to me the high def
Is there any documentation on ATU which explains how it stores antenna
matching parameters in its memory, if it ever does ?
It seems to me that after actioning on the ATU and getting a good match on
a given frequency, when I get back to it again, after tuning on some other
bands, using the same ant
Fred,
The KXAT3 does remember the setting on each band segment. I cannot
recall the width of the band segments, but I suggest you do a TUNE on
the bottom of each band, then move up 20 kHz and do a TUNE again.
When you go back to that same band segment, the tuning combination
should be recalle
I forgot to add - when initiallly setting up the band segments -
continue the TUNE cycles until you reach the top of the band.
After that, all is automatic when you return to that band segment.
73,
Don W3FPR
On 2/5/2013 6:12 PM, Don Wilhelm wrote:
Fred,
The KXAT3 does remember the setting on
Don, I have a related question.
A lot of my HF operations are Navy-Marine Corps MARS. All of our allocated
frequencies are outside the ham bands, and many are not even close to a band
edge. How does the K3 remember ATU settings outside the bands, or does it even
have logic to support this?
Matt,
I really don't have a definitive answer, but I would think it would
behave similarly.
Wayne may have a better answer or at least a pointer.
I do know you can manually set the ATU inductance and capacitance which
works in places where you cannot transmit, but I don't know about
automati
D'oh!! - I should not write before coffee!
I use SSB mode a lot to receive SW broadcast stations and often switch
sidebands if I'm not sure I'm really on frequency.
73 Ron AC7AC
-Original Message-
If it's an SSB signal, and I switch sidebands, won't I be trying to listen
to the sideba
Matt --
That's something that I've wondered myself, for similar reasons.
I have noticed that the MARS frequencies closest to the amateur bands (e.g.
low 4MHz) are remembered by the KAT3, while those further outside (e.g.
high 4MHz) are not.
At this point, I know by experience which of the freque
Not sure I completely follow this since I think the KXAT3 is the tuner for
the KX3, but questions seem to apply to K3.
I have both K3 and KX3 and use both on MARS freqs. The KXAT3 in the KX3
does remember the settings for all the MARS freqs I use.
I do not have the internal tuner for the K3 but
Hello Fred,
I've seen a few oddities in the battery charger also. I think some
variables that you change don't have immediate effect for some reason I've
not bothered to investigate.
Try setting the charging parameters you want, then exit the menus and turn
the KX3 off with the 2 button salute.
> Hi Eric,
>
> Well its been a long road but I cant see how anyone could have thought we
> were requesting something else, it was made clear that original rubber
> button had a defect in it and that was all we needed, a rubber assembly in
> what ever form it took, bu tnot a full front panel with di
Thanks, Don. I'll readdress the question to Wayne and hope he has
time for an answer.
73!
matt W6NIA
On Tue, 05 Feb 2013 19:06:54 -0500, you wrote:
>Matt,
>
>I really don't have a definitive answer, but I would think it would
>behave similarly.
>Wayne may have a better answer or at least a po
Hi Michael,
Well, for those close-in freqs, it's not been a problem here. I was
thinking around 11 or 12 MHz where there isn't a ham band in sight for
a considerable span.
73,
matt W6NIA
On Tue, 05 Feb 2013 19:22:11 -0500, you wrote:
>Matt --
>
>That's something that I've wondered myself, for
And a great happy ending, many thanks to the team at elecraft...
Great price for the replacement part, this would be $200 from Motorola haha.
Members of the mailing group, Pls see part number below for your reference
if you ever need one.
Cheers
Brenton
VK5BM/3
Other callsigns VK3NV, VK3JC
Hello
Matt --
I'm not even sure I'd call the lack of memory on the KAT3 on those far-out
frequencies a "problem". For me, at least, it's curiosity and potentially
useful information in the future.
The only time the lack of memory has been inconvenient is when I've joined
SHARES nets in progress (and h
Bruce, Someone mentioned a "jellyroll" it is padded and used to hold a
photography lens. But at 4 inches in diameter and 9 inches long, it provides
a nice house for the KX3 - but not much else. If you search for "jellyroll
case" on Amazon you'll find two of them, one charcoal and one brown (camel).
Advance notice for our Elecraft list members -
We will finally be making the price increases this Friday that we
originally planned for last September. (We were so busy with the KX3 and
other products that we kept putting it off until now - to everyone's
benefit :-)
The web order form at htt
Have a look at Lowepro backpacks. They have a huge selection of padded
backpacks for photo. I have a large one for all my camera gear it
even has a slot for a laptop. its one of the larger padded backpacks
with padded dividers. I can rearrange the padded dividers and fit key,
headset, la
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