TLW, the transmission line calculator that comes free with the ARRL
Antenna Book, does that very nicely.
Dave AB7E
On 7/4/2011 8:57 PM, Sandy wrote:
Somewhere on the web I found a program that you feed in the vector impedance
of an antenna ( say 123-j58 ohms) and it will give you the
Tech mode, not test mode.
73, Mike NF4L
On 7/4/2011 5:17 PM, n...@n5ge.com wrote:
1. Go to page 59 of your owner's manual.
2. Near the top you will find a section labeled SIG RMV [T] ([T] means you
must have CONFIG in Test mode).
3. Follow the instructions.
And it works...
73,
Tom
Try page 58 (not 59) near bottom of page...or better yet, use the PDF
find resource for SIG RMV [T]...
John Ragle -- W1ZI
=
On 7/5/2011 7:36 AM, Mike wrote:
Tech mode, not test mode.
73, Mike NF4L
On 7/4/2011 5:17 PM, n...@n5ge.com wrote:
1. Go to page 59 of your owner's manual.
2.
Here's one I use:
http://bwrc.eecs.berkeley.edu/Research/RF/projects/60GHz/matching/ImpMatch.html
Phil - AD5X
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Hi, all concerned:
In the next 6 months, I'll be going from having a competitive station to . .
. heavysigh . . . an in-law suite which will likely have HOAs and
restrictive covenants, somewhere in or near Jacksonville FL.
I am interested in remotely controlling a K3 over the 'net, as simply as
Hi Dave,
That remote USB device looks interesting. I'm not sure, however, that it
will work over the Internet. I think its intended for use on a local network
I looked at the manual and saw nothing about how you would find the device
from a remote computer via the Internet. That is to say what
AA908 has been sold.
Thanks for all who responded.
Don
K5DW
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This list hosted
http://www.remoterig.com/wp/?page_id=465
73
Paul
PD0PSB
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Dave,
perhaps easier to consider The remoteRig box that allows
you to remote your rig with a single box
http://www.eham.net/reviews/detail/8956
cheers
- Wim
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Hello Sandy,
Anybody recall where one of these calculators is on the internet?
Maybe here ;o)
http://www.qrp4fun.de/en/s5.htm#d9
--
73/72 de Ingo, DK3RED - Don't forget: the fun is the power!
www.qrp4fun.de - dk3...@qrp4fun.de
Wayne :
I have also had good luck with the CUPS supply that Randy mentioned from Morse
Express / Milestone Technologies
with both my K1 / K2 and i have never had any issues with noise.
BTW It is only supplied with a 2 prong plug.
Michael VE3WMB
From: Wayne Burdick n...@elecraft.com
Date:
Look through your old laptop PC power supplies. They are typically 14-19
VDC with 1.5-2.2 A current supply capability. Some are clean, some are
dirty, but they are generally quite small. I used to use one with my K2
at trade shows.
Larry N8LP
On 7/5/2011 12:00 PM,
Not taking a thing from what is being proposed as to controlling the K3 over
a LAN or the Internet, I wish Elecraft would produce a Remote Pod,
actually a hard wired Pod which would access the CW and DVR memories with a
press of a given button and maybe though this is less important to me have
an
I think what you want is port forwarding to get through the router
firewall and specify the fixed IP address. In my Belkin router it is
under Firewall Virtual servers.
You specify the private (local) IP address (which will be 192.168.2.*)
and port number as well as the fixed IP and port that is
This is a great idea for a new product.
On 7/5/2011 12:25 PM, Doug Turnbull wrote:
Not taking a thing from what is being proposed as to controlling the K3 over
a LAN or the Internet, I wish Elecraft would produce a Remote Pod,
actually a hard wired Pod which would access the CW and DVR
Yes, port forwarding is used. But there is still the problem of what the IP
address of the router itself is if you don't have a static IP address. There
are a number of services that can be used to give you a symbolic name that
the name server can look up, but they need something to tell the
If set to NOR, the KPA500 fan will switch to speed 1 at 50C, speed 2 at 55C
etc.
If set to speed 1 manually, temperature rise will be slower and it will take
longer to reach 55C or even 60C.
Then it cools down more quickly. Maybe not a bad idea to leave it at speed 1
all the time, the noise is
Most, if not all current cable/dsl routers support DynDNS natively. That's
what I've been using for years to accomplish this.
On Tue, Jul 5, 2011 at 11:30 AM, Mike WA8BXN hubb...@hotmail.com wrote:
Yes, port forwarding is used. But there is still the problem of what the IP
address of the
FYI
SN: 129
Ordered: 4/6
Notified will ship in the next 3-5 days: 6/23
Shipped 6/27
Arrived 7/5
George
AI4VZ
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The best solution is to use a static IP address at the remote station.
My ISP offers a package of 8 addresses for an extra monthly charge. You
pick one of them and tell the router to use that address. That way the
computer at the control point can always connect to the same address to
access the
Perhaps I'm overlooking something obvious. In the case of the K3, what
would comprise the user interface at the operating end in absence of a
computer?
73,
Dick - KA5KKT
_
Dave,
perhaps easier to consider The remoteRig box that allows
you to remote your rig with a single
Yes, you do need a computer at the operating end. However it is really
nice not to need one at the radio end. If the computer crashes you
really don't want to have to drive to the mountaintop to reset it. Also
having a computer running 14/7 can waste a lot of power. The computer
at the
Thanks, Alan.
The eHam link referenced in Win's post was for a unit not requiring a
computer at the operating position. I suppose that is for units that have
remote heads.
Perhaps Elecraft will consider a remote head for the K3 and/or other/future
rigs.
73,
Dick - KA5KKT
On 7/5/2011 2:27 PM, Alan Bloom wrote:
Yes, you do need a computer at the operating end. However it is really
nice not to need one at the radio end. If the computer crashes you
really don't want to have to drive to the mountaintop to reset it. Also
having a computer running 14/7 can waste a
Don,
It is not a good idea to just remove the power from the K3 - just like
a computer, it needs to power down gracefully and store some things for
the next time it is powered up.
The K3 does feature a Remote Power On input that can be used to turn it
on. To turn it off remotely, one can
Instead of a full blown computer at the remote site why not just design an
app for an Ethernut board? If you have IP access to the site then the
Ethernut board can run the K3 from firmware. Set the watchdog timer so if
there are any glitches it times out and resets the board. Send the
On 7/5/2011 2:29 PM, Don Wilhelm wrote:
A dedicated controller *could* be designed to serve in place of the
computer at the remote end, although that would take too much effort
IMHO for a one-off installation.
www.hamstack.com
I know George and John very well [but have no financial interest
I shudder when an engineer or programmer says that. The a day never
happens, and the or two is always a gross underestimate. ;-)
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org
On 7/5/2011 2:49 PM, Kevin Rock wrote:
Fairly simple
On 7/5/2011 11:50 AM, Richard Squire - HB9ANM wrote:
If set to speed 1 manually, temperature rise will be slower and it will take
longer to reach 55C or even 60C.
Yes. I have already placed a request with the Elecraft engineering team
for a firmware update that allows a more aggressive fan
Seems to me that with all the recurring interest in remote operation that pops
up here and, with the number of people that are thinking about remote as a way
to retire to a radio restricted QTH and still get on the radio, that a direct
ethernet hook up like the Omni VII has would be a great
Plus it is only a few chips on a board to get the job done. Firmware is
dead simple too. Simple solution, why hasn't anyone built it yet?
Kevin. KD5ONS
On Tue, 05 Jul 2011 15:57:19 -0700, Rick Prather k6limae...@gmail.com
wrote:
Seems to me that with all the recurring interest in
That is what the user settable base fan levels are for in the KPA500
menu. When using data modes in high duty cycle environments, feel free
to set the lowest fan level to a higher value.
73, Eric WA6HHQ
---
www.elecraft.com
On 7/5/2011 3:37 PM, Jim Brown wrote:
On 7/5/2011 11:50 AM,
After having a less than successful time with PSK31 during the 13 Colonies
Special Event, I think I need to learn more about noise reduction. I've read
the section in KE7X's manual, but I'm looking for guidance specific to the
soundcard digital modes.
1) It appears the K3's attenuator is fixed
Don,
What is your specific problem? If it is strong signals within the
passband, then more narrow roofing filters are the answer. Instead of
using the entire 2.7 kHz bandwidth and depending on the software
application to resolve any one signal, use the K3 filtering to zero in
on a
I think this may interest some of you...provides for its own IP with no
computer and contains the required FCC (if you're a US ham) for failsafe
operation...
http://www.glentekcorp.com/
73 de Greg-N4CC
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Wayne,
The following supply meets your requirements almost to the Tee. There
are 3 to choose from. I have tested and used the second one in
Professional broadcast off-line Video production as well as Audio
recording. I have not heard noise from them that would cause an issue.
Furthermore,
Looks like the LS25-15 model might be what Wayne (and I) would like, since
it is adjustable from 13.5V
to 15V at 1.7 A, whereas the LS25-12 is adjustable from 10.8V to 13.2V.
These are speced at 120 mV ripple noise. Is that high?
Thanks for posting this Michael.
Chip
On Tue, Jul 5, 2011 at
Hi Don,
I concurr with Don on his analysis.
I have a 700hz and 200 hz filter and I use them quite a bit for PSK31.
If you try to use just the DSP to narrow down the bandwith it does not
work as well. I used to only have a 2.7 and 2.1 k hz filters and used
the DSP only. However after using
This would be somewhat advanced, but I'm thinking that with a router
capable of running OpenWRT (a Linux distribution for embedded hardware)
that a Perl script run as a cron job could query a site like
http://www.displaymyip.com/ , scrape the page, and email the IP address
every few hours. In
* On 2011 05 Jul 17:58 -0500, Rick Prather wrote:
I would visualize an internal modem board like Ten-Tec does in the VII that
can be assigned it's own IP address and connected directly to the Internet
without a computer at the remote location. This would be an option, so not
required if
On 7/5/2011 4:00 PM, Kevin Rock wrote:
Plus it is only a few chips on a board to get the job done. Firmware is
dead simple too. Simple solution, why hasn't anyone built it yet?
Oooh and the phrase, only a few chips on a board. I'll skip over the
dead simple.
Forgive me folks, but I got
Shipping notice received. Should be here Thursday. Ordered on 4/06/11.
Dave W7AQK
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Have you looked at the one from Powerwerx ?
http://www.powerwerx.com/batteries-chargers/powerwerx-30-amp-desktop-switching-power-supply-powerpoles.html
73,
K1NR
On Tue, 05 Jul 2011 17:45:01 -0700
N6MQL n6...@arrl.net wrote:
Wayne,
The following supply meets your requirements almost to
Have you looked at the one from Powerwerx ?
http://www.powerwerx.com/batteries-chargers/powerwerx-30-amp-desktop-switch
ing-power-supply-powerpoles.html
I bought one. Not exactly miniature, but smaller than my Samlex 1223.
Runs the K3 + accessories easily. No noise issues (RF or acoustic) that I
I signed for UPS delivery at 1830 this evening. I built it over the next
3.5 hours, including two unrelated interruptions from XYL N5BW. All
parts were on hand plus a couple of extra washers and screws. My only
issue was that the input RF connection to the amplifier brick was not
completely
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