Jim Brown j...@audiosystemsgroup.com writes:
Your expectations are unreasonable -- 20 ft is WAY too close, even for
two great rigs on the same band at 500W. We run K3s to KPA500s on the
same band for CQP (Cal QSO Party) county expeditions and use 250 ft
spacing with antennas carefully
I should also say if you load the software that comes with most KVM's
you can do the switching very quickly with a hot key combo on the source
(computer) keyboard. No reaching for the switch to push a button or turn
a knob.
On 7/3/2015 8:38 AM, Kevin Stover wrote:
This is the way I'd go.
We
Yes 50dB is about 30dB too high... Simple modelling says it all...
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
Owner - Operator
Big Signal Ranch - K9ZC
Staunton, Illinois
Owner - Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it:
And... those switch boxes are often available at hamfests. Also, they
make fine housings for various ham projects for those who like to
homebrew. ;)
73 de Ray
K2ULR
On Jul 3, 2015, at 8:13 AM, Mike K2MK wrote:
Hi Ray,
It sounds like your primary monitor has dual inputs and your
Sorry, I should have said 2 to 4 COMPUTERS (sources)
rather than monitors. One monitor with 2 to 4 sources.
Jim - W4RKS
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Help:
Hi Ray,
It sounds like your primary monitor has dual inputs and your secondary
monitor only has an SVGA input. You could consider switching monitor
positions. If this is not acceptable due to monitor size or quality then an
SVGA cable AB box should work perfectly. Consider using Amazon rather
What would people expect for power loss between the G5RV and the
beam? Based on other comments, distance, and the beam heading the
wrong way, I'd guess about 50 dB.
50 dB is probably optimistic. The equation for free space path loss
(coupling between antennas) is -40 dB + antenna gain - a
I use a video Capture card and put the P3 in a window
From: Ray Benny rayn...@cableone.net
To: elecraft@mailman.qth.net
Sent: Friday, July 3, 2015 2:20 AM
Subject: [Elecraft] Monitor switching between P3 SVGA output and second output
from main computer
I'm looking to switch my
A KVM (Keyboard,Video,Monitor) switch may do the job.
You'll find them on Amazon for 2 to 4 monitors for around $25. It works to
use just the Video connections - just ignore the keyboard and mouse.
They are small and are powered by the input sources
and usually just toggle between connections at
The ones with a mechanical rotary switch are completely bi-lateral and
can work either way.
Those with pushbuttons may be more picky about which is the source.
73,
Don W3FPR
On 7/3/2015 9:01 AM, James Wilson wrote:
Sorry, I should have said 2 to 4 COMPUTERS (sources)
rather than monitors. One
This is the way I'd go.
We use a bank of 3 12 switch KVM's to switch between different servers
and three monitors at work.
I have a KVM at home switching two computers between my dual 24 monitors.
On 7/3/2015 7:43 AM, James Wilson wrote:
A KVM (Keyboard,Video,Monitor) switch may do the job.
I use a video 2x2 switcher, It has two input, two outputs and you can switch
any source to any output.
It is a VX-8202F from Monoprice. $29.
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Ray Benny
Sent: Friday, July 03, 2015 12:20 AM
To:
On Fri,7/3/2015 10:43 AM, Cady, Fred wrote:
I'd like to use an audio mixer to mix computer and mic audio plus have kind of
an intercom between two operators wearing headphones. I know there are audio
experts here so what suggestions might you have?
The good stuff is made by Rane and Mackie.
Maybe... Use a bias T with the DC feeding torwards the transverters?
The ACC2 keyline (p5, Owner's Manual) is pulled low during transmit
and could be used to activate a FET or bipolar switch to 12VDC.
73,
matt
W6NIA
On Fri, 3 Jul 2015 19:37:52 +0200, you wrote:
Hello All Elecrafters,
I have a
This was something we wondered about during field day. A way for operator
and logger to speak to each other over the headsets, as well as listen to
the QSOs. Hearing both sides of the QSO was accomplished by using the
monitor feature on the K3. However, the operator and logger wanted to
Hi all,
Happy 4th.
I'd like to use an audio mixer to mix computer and mic audio plus have kind of
an intercom between two operators wearing headphones. I know there are audio
experts here so what suggestions might you have?
Thanks and 73,
Fred KE7X
But hams are cheap! I just checked, and you can get 1970’s Shure mixers for $25
on eBay.
wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)
On Jul 3, 2015, at 11:40 AM, Jim Brown j...@audiosystemsgroup.com wrote:
On Fri,7/3/2015 10:43 AM, Cady, Fred wrote:
I'd like to use an audio
I'm thinking this was a late April fools gotcha.
73,
Gary
KA1J
On Jul 1, 2015, at 9:33 PM, Matt Z via Elecraft elecraft@mailman.qth.net
wrote:
KL7AA had two elecrafts at FD, a KX3 for SSB and a K3 for CW, and
interference was a definitely noticed. Each rig was wired to separate 3
On Fri,7/3/2015 7:03 AM, Greg Troxel wrote:
So, I wonder:
When you used the 250 ft spacing (and in the nulls), what kind of
measured coupling did you see?
We never measured anything. Rather, we followed good engineering
practice, worked to find locations on our site where the antennas
Fred,
The ARRL 2012 Handbook has such a design, section 24.15 “An Audio Interface
Unit for Field Day and Contesting.”but I have not built it.
73,
Hoop
K9QJS
On Jul 3, 2015, at 10:43 , Cady, Fred fc...@ece.montana.edu wrote:
Hi all,
Happy 4th.
I'd like to use an audio mixer to mix
Hello All Elecrafters,
I have a KX3 2m; I don't know how to configurate it in order to command
DB6NT microwave transverters needing +TX voltage present on SMA
connector during transmit? KX3 has already last firmware loaded.
Thanks in advance for your explanations. 73's.
Jacques F6AJW /
I have been having problems with my K3 auto tuner using an antenna that has
worked well and been tuning easily for nearly all bands. My first reaction
was to assume the antenna, an 80m horizontal loop, was the problem, but I am
now convinced otherwise. To prove that, I did the following:
- took
That is also in the June 2008 QST, page 39. The PDF is downloadable from
arrl.org.
wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)
On Jul 3, 2015, at 11:32 AM, Jim Hooper k9...@icloud.com wrote:
Fred,
The ARRL 2012 Handbook has such a design, section 24.15 “An Audio
Hello David,
Not singling you out or anything but I've often wondered why you need
separate operator and logger? This seems to be a practice peculiar to
FD but I've never understood why the person operating the radio doesn't
do the logging too??
On 7/3/2015 1:15 PM, David McAnally wrote:
The club I belong to uses a logger op at Field Day stations to introduce
new hams to HF and to contesting. It also provides a way for folks to
participate without feeling they are being pressured into operating in a
manner they aren't used to our don't want to.
73 de,
Ian, KM4IK
On Jul 3, 2015
On 7/3/2015 1:20 AM, Ray Benny wrote:
I'm looking to switch my second monitor between two output sources. First is
the P3, second is the cable from my main logging computer that I run DX Atlas
from, My primary monitor is used for my logging program only.
I do have some old manual switch boxes
Lyle, I seriously doubt that, given the task of having to dupe and cross-check
500 or a thousand QSOs in a contest, that even you would be so nostalgic as to
do it with the paper dupe sheets we used to have to use. These days if you are
logging on paper you have already lost the contest…
73,
Nose, KH6IJ (SK) would just keep the last three or four contacts in his head
then write them down (on carbon copies) while working a slow one.
See: https://archive.org/details/73-magazine-1968-02 page 50.
On 7/3/2015 8:16 PM, James Bennett wrote:
My guess would be for a CW contest station.
Paper logging is pretty common for emergency communications. Unlike contests,
the messages can be anything. It is common to have a net control and scribe
working as a team.
Most of the time, that can be done with a simple headphone distribution amp,
but there are fancier setups.
wunder
K6WRU
My guess would be for a CW contest station. Kind of a PITA to keep moving hand
from keyer paddle to keyboard. Of course, if one could type with one hand and
do CW with the other, that would be great. But I can't, so having a logger op
would help the QSO rate.
On Jul 3, 2015, at 7:52 PM,
Fred and all,
Tnx for your input. I have purchased a foreign made manual 2 position SVGA
switch online. Will give it a try first.
The KVM switches look nice, especially with software that allows assigning hot
keys to do the switching. I did not find a KVM type for monitors only. So I
will go
On Fri,7/3/2015 7:52 PM, Gary K9GS wrote:
Not singling you out or anything but I've often wondered why you need
separate operator and logger? This seems to be a practice peculiar to FD
Yes, this is a practice that goes back to #2 pencil logging and paper
dupe sheets. The first FD I was on,
Or, some guys just prefer to do it with paper and pencil. I have lots
of ebooks, but I often prefer to grab a physical, printed-on-paper book
and curl up on the sofa and read.
Heck, I've even heard some guys are so stuck in the past they actually
use CW on HF
73,
Lyle KK7P (who is
Rob,
I would suggest that on 40 meters and 80 meters, your loop is presenting
a very low impedance to the shack end of the feedline.
Tuners of all types do not work well into very low impedance loads.
Add or subtract somewhere between 1/8 and 1/4 wavelength of feedline at
the problem
Strongly thinking of getting into so2r primarily for cw. With 2 K3's, what
external hardware do I need? I realize this info is out there, but I really
want some practical real world advice.
Thanks,
Joe
AB5OR
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Elecraft mailing
On Fri,7/3/2015 9:19 PM, Joe Moffatt wrote:
With 2 K3's, what external hardware do I need?
Probably the best is the YCCC SO2R Box. It's a club project, sold as a
kit. Reasonably easy to build, lots of soldering, but no SMT. 5-6 hours
by the time you make the cables. They've done a half dozen
Mine arrived five minutes ago. Haven't even opened the box yet. After taking
it out of the UPS guy's hands, I had to wash mine and damp wipe the box. I think
UPS uses their trucks to haul coal after dark.
K3S100 F S/N to follow.
Too bad the line noise is still S9+
Wes N7WS
On 7/3/2015
On Fri,7/3/2015 11:55 AM, Walter Underwood wrote:
But hams are cheap! I just checked, and you can get 1970’s Shure mixers for $25
on eBay.
Yes, but 70s vintage Shure mixers won't do what Fred wants. The product
lines I mentioned should also be available on eBay.
73, Jim K9YC
Here ya go:
When in the 2M/4M menu, tap 2 to toggle between TX 5V- (the default) and TX
5V+. When TX 5V+ is enabled, 5 VDC (± 0.3 v at 0.1 mA) is applied to the
center pin of ANT 2 when transmitting. This can be used to switch or control
external devices such as additional transverters
I heard that exact noise before Wes. I went up and down street
grabbed the guy wire going to electrical poles while shacking the pole I
found an insulator arching. Tracked it down with mobile rig in car.
Gave power company the pole number and had it fixed within a week. Like
the idea of
I'm looking to switch my second monitor between two output sources. First is
the P3, second is the cable from my main logging computer that I run DX Atlas
from, My primary monitor is used for my logging program only.
I do have some old manual switch boxes that switch data (DB9 connector) and
On Thu,7/2/2015 11:20 PM, Ray Benny wrote:
but is there a better or easier way?
Many newer monitors have multiple inputs -- Costco has been selling a
23-in Samsung that is nominally 14VDC but runs fine on 12VDC, draws less
than 1A. It has one SVGA input and two HDMI inputs. I paid $170 plus
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