Hello Ken,
in your exemple despite the SWR staying the same the curent is not the same :
at r=6+j16 the curent will much ùuch higher than with r=48+j146 !
Result : you will have more loss with the hight curent and the result will be
less field intensity in the fist situation than in the second !
Hi
Following my recent post here is what I found.
There was no hardware problem - all checked out OK except for the TXD pin which
was hi - this is not a fault as it toggles hi - lo with data and can be checked
with a 'scope.
Thanks to Don for the very useful info that if you have a
On Sun, 16 Jan 2005, Parker Buckley wrote:
Aw Geez. All I had to do was send an email to the group and the KIO2 started
working.
The Elecraft Mojo also lives on the mailing list.
73,Thom-k3hrn
www.zerobeat.net Home of QRP Web Ring, Drakelist home page,
Free Classified Ads for amateur
After retracing my steps in trying to get the KIO2 to play, I discovered that
it worked when I connected the cable to J1 without the two jackscrews in the
plug. It appears that the holes in the nuts holding J1 to the top cover are
too shallow to allow the connector to mate all the way. I
Alan,
You're right! That took all of about ten seconds to fix. My original
message was correctall I had to do was humble myself to the group.
73,
Parker
- Original Message -
From: Alan [EMAIL PROTECTED]
To: Parker Buckley [EMAIL PROTECTED]
Sent: Monday, January 17, 2005 9:42
Several months ago, I built what I call my KX1 Desktop Adapter, and it's
worked out real well. It's made from PC board material, a few strips of lead
(which isn't absolutely necessary), male female stereo connectors, and is
covered with stick-on felt. It's basically a U-shaped bracket that has
I have to opportunity to mentor a group of Boy Scouts for their Radio Merit
Badge starting Tues night, and I will bring the KX1 to show them the
incredibly cool stuff you can do with ham radio in 2005. I will make Ron's
point that this mode of communication gets through when nothing else can
Can I add the 2 new resistors (R4 R33) specified in the, K2/100 MANUAL
(Appendix G) ERRATA Rev. C-3, December 14, 2004, without having to
recalibrate anything?
What is the effect of changing changing R4 from 100 k to 39 k in the High
Voltage Bias Supply.
Thanks,
John K5XTX
Ron wrote:
About my KX1 I explained, This little box that fits in my jacket
pocket is a complete short-wave radio station that I built. I can
throw a wire over a tree limb and contact other people over a
range of hundreds of miles, thousands of miles, even half way
around the world at times. It
Guys, I knew you would come through...;-)
So there's basically three ways to do this:
1. Block pin 4 of the KIO2 and cut the corresponding pin from the male
connector.
2. Create a short cable and leave it attached.
3. Cut a slot in the shell of the male connector directly above pin 3, and
Hi all.
K2/100 #4684 has passed alignment and test part 1 but not without some
human error thrown in.
I will swear on a stack of any book you want that I checked U1 pin #1 on
the front panel board during the resistance checks. I got the radio all
asembled and powered up but no display. I tore
From: Pete Norman
Hi everyone! I've got the crystal zero beat on 4 MHz but the best PLL range I
can manage is 9.5 kHz which is frustratingly close to the required range! I
think everything is in the right place! Any suggestions, please? Pete, g0pks.
-Original Message-
From: [EMAIL PROTECTED] On Behalf Of G3VVT
The reported birdie at 28.276MHz is there, but extremely faint at about
28.275.6MHz on USB and shifts up to about 28.277.7MHz on LSB. I would think
it fair to comment that most ham receivers have birdies somewhere if you
Note: forwarded message attached.
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Help:
A while back I had a loud noise problem on 20m 17m which I tracked down to a
neighbor's doorbell transformer that was going bad. Then about 7 months ago I
encountered a similar extremely loud but marching noise that wiped out all
but the 80m band with S9 + 20 noise spikes at roughly 1 second
Evening Sverre,
The 16.289 oscillator I mentioned last night is the source oscillatoir for
the KPA's high voltage supply. There is not a 16.289 MHz source in my K2,
and with the KPA100 uninstalled, K2 alone has the birdie at approx 28276 MHz
CW /USB which moves up to 28278.5 approx on LSB. Using
I played with my father-in-law's Radio Shaft version over Xmas. Looks
like resistance soldering to me, except the tip on that thing is way
more fragile than the tweezers (which I learned to solder bifurcated
terminals with) the Navy used. It appears to be cast from a
graphite-like substance, and
Hello all,
The ARCBS Digi Award has been up-dated to reflect the society's old/new
theme for this award.
If you have a minute, click on the link below and take a look at it.
http://www.arcbs.org/DigiAwardPic.html
72/73,
Ed, WA3WSJ
ARCBS # 1
___
Eric, N0HHS wrote:
I have to opportunity to mentor a group of Boy Scouts for their Radio Merit
Badge starting Tues night, and I will bring the KX1 to show them the
incredibly cool stuff you can do with ham radio in 2005. I will make Ron's
point that this mode of communication gets through when
Happy New Year! I'm bck- with a whole new list of great hamfests coming
up in 2005.
First: Following are the Hamfests Elecraft will be attending, selling
product and giving a presentation in February:
February 11-15 NORTHERN FLORIDA CONVENTION HAMCATION Booth # 62
Orlando FL
I don't want to discourage anyone, especially since I too show off my KX1, but
just be sure you don't oversell the technology. Like everything else, amateur
radio, especially QRP HF rigs, do have their limitations. Reliable
communications means different things to different people. Do I carry
Rick, WD8KEL wrote:
Amateur radio is fun and can make a difference, but it's only ONE of the
tools to be used in an emergency, not the only tool.
Absolutely. I apologize if I suggested any differently. I referred to the
rigs as public relations tools, speaking to their
Ha
Does anyone know where I can find a NorCal or Red hot 20 or 40 kit that
someone bought but never assembled? A good friend of mine wanted one of
these rigs but production stopped before he could purchase one.
Allen
[EMAIL PROTECTED]
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Elecraft
On Mon, 2005-17-01 at 10:33 -0600, Mike Morrow wrote:
Today, I do have doubts about the practical value of amateur radio
emergency communications in all but extremely rare situations. The
cellular phone systems in many places in the world are surprisingly
robust and reliable.
Both our
For Sale: KAT2 (20W Automatic Antenna Tuner) and KBT2 (Internal Battery
Option). These are being sold as a built to specs as one unit. Installation,
Assembly and Operational Instructions for both are included. A step by step
check off list with items checked off as they were built. These came
Ron D'Eau Claire wrote:
I apologize if I suggested any differently. I referred to the
rigs as public relations tools, speaking to their perceived value to the
community.
No, Ron, you didn't suggest anything wrong. More frequent than not, we (yes,
this includes me, sometimes) get carried away
Hi,
I have some strange behavior of K2 462 on PSK31. I set the power level at
15 watts and advance the drive through a combination potentiometer and the
sound card output until I get 5 watts output. The interface is homebrew
per QST May 99. The ALC is not functioning. Using r or r rev
FOR SALE: KAT2 (20W Auto Ant. Tuner) and KBT2 (Int. Bat. Option) built with
assembly, installation and operating instructions. Paid $226 plus shipping.
Asking just $145 including shipping to the United States.
Above being sold as one unit. Very nice assembly. These came out of Elecraft K2
Thanks to all who responded; I've found and bought a top cover assembly.
73's, John WA6YSY
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Help:
Some may remember that I was hearing an annoying click when the receiver of my
K2 unmuted, only when the KPA100 and the DSP were both active, and only on
160/80 meters.
I tried a lot of things, however, what finally worked was changing C71 on the
KPA100 board from 0.01 uf to 0.1 uf. The
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