Aha! Then I did not fully understand the inner workings of the K2.
I just looked att the schematics and noticed the BFO and the mixer. Out of
that I made the conclution that the BFO value must change the pitch.
So what you are saying is:
During filter setup, it is normal for the pitch to change
Pactor III is 2.4 KHz bandwidth, not 5 KHz.
However, various other modes plague of the amateur bands, it is not
confined to Pactor III. I See ROS stations sending out beacon/CQ calls
endlessly in the hope of someone reporting their signals with a link
back via the internet. Even the lowest symbol
I setup LP Bridge and everything working ok without the vga grabber, my PC
P3 external monitors are together and I took some pics of the P3 svga
monitor ;
http://groups.yahoo.com/group/Elecraft_K3/photos/album/1071255895/pic/27
157/view?picmode=large
Erik,
Yes, that is why you cannot use a single signal (tone) when aligning the
filters.
The use of a broadband noise source and an audio spectrum analyzer
application running on the computer soundcard will make K2 filter setup
easy and uncomplicated.
73,
Don W3FPR
On 4/30/2012 2:49 AM, Erik
Riddle me this!
I have strong interferance since installing an air source heat pump. It is
most annoying on 20M. It is also present on 40M and 15M. My 40M antenna is
twice as far from the compressor and the noise on that band is reduced. On
20M is is S3-4. It used to be S1. Here is what I have
I recently downloaded JT656HF by W6CQZ and have on several occasions monitored
14.076 MHZ with my K3/Signalink USB using this software. I am still in the
process of trying to set up the software and gaining an understanding of how to
use it. I experience the following: 1) If I set my K3 in
Thanks to all who replied. I've pretty well decided that the build for me is
as much fun as operating, so I'll probably go the k2 route now. Maybe a kx3
later.
Now comes the hard part - telling the xyl that I'm running up the credit
card for ANOTHER radio!
--
View this message in context:
Your using Pactor to email family and friends. Unless your family and friends
are all amateurs, communicating with them was at one time not allowed.
Really? When? Since the beginning of time Amateur Radio has been used
for third party traffic [in the US]. Ever hear of Heath Welfare
messages
Hi, Robby —
The noise is very likely coming from the pulse-width modulation (PWM) circuitry
that runs the blower motor located in the air handler enclosure (often located
in the attic or on the top floor of a residence). In poorly designed and
shielded circuits the noise can escape from that
This popped up on the KX3 reflector but I thought it should be here
too. Pardon if someone beat me to it.
Here's a neat new device that connects your computer and radio over an
ad hoc wireless network. It is really designed for the iPad and the
maker's program HamLog but I see it having
John,
What are your filter settings?
The default filter settings in DATA A are Fc = 1500 Hz, width = 500 Hz.
The JT65 sub-band is 2 kHz wide, centered at 1270 Hz, so with the
default DATA A filter setting you will only be able to copy a small
fraction of the sub-band and therefore only a
Thread closed.
Folks, in the interest of reducing list overload we are making a new addition
to the official Elecraft list guidelines.
Once there have been more than 2-3 postings on an Amateur Radio policy topic
like this (what's legal, what is, or is not, 'ham radio', no code pro/con etc.)
International third party traffic is illegal unless the US has a
specific agreement with the country involved.
Secondly, third party traffic is limited to *non-commercial* messages
of the type that would not be transmitted by commercial means.
Navigation data, weather charts, supply orders,
S/N 13xx with:
K3/100
K3 100W Xcvr. (Modular Kit)
$1999.95
KAT3
K3 ATU (Modular Kit)
$299.95
KFL3A-400
K3 400 Hz, 8 pole filter
$139.95
KFL3A-6K
K3 6 kHz, 8 pole filter
$139.95
KXV3A
K3 RX Ant, IF Out Xvrtr Intf.
$119.95
About $2700 new, $2400 OBO
I'm not experiencing that here, but there is one of many features I like about
the SVGA image.
When I first got the P3 I did not like the U shaped cursors, but now that I have
a larger display for the P3 I find I like the U shaped cursors better for weak
signal work because they don't hide the
Thank you for the help.
Despite owning the K2 since 2005 its not until now I start to understand
it. :$ :-)
Thanks again and best 73 de SM0RVV
./Erik
Den 30 apr 2012 13:04 skrev Don Wilhelm w3...@embarqmail.com:
Erik,
Yes, that is why you cannot use a single signal (tone) when aligning the
Folks,
Given that inductors on toroid cores are used extensively in autotuners, is
there any reason (assuming I choose the right size core, made of the correct
material for the application and winding it with the right size wire) for not
using one as a base loading inductor on a vertical
If it is slow relay switching, this could be added to the switching ckt.
http://www.w6pql.com/relay_sequencer.htm
Ed K7WIA
--
View this message in context:
http://elecraft.365791.n2.nabble.com/PR-6-issue-when-QRO-tp7511705p7513851.html
Sent from the Elecraft mailing list archive at
Ken:
Toroidal cores have many fine qualities for loading coils. Of course not all
core have the same qualities so be sure you have the right Al rating. You
will want a low rating. Also remember you will lose those fine qualities if
you saturate them so be sure your core is big enough for 250 watts
Ken -
A toroidal inductor should work fine, it is understood that the core
must be of the proper material and size to handle the expected power and
frequency range. Keep in mind that many of the automatic tuners use
toroidal inductors in their design. There is some advantage to
I've just downloaded the latest P3 utility for Linux, version
1.12.4.26, and find that it does not recognize that a newer version of
the P3 firmware is available. From the log window:
07:20:37 Connecting to ftp.elecraft.com. Please be patient, this takes a
few seconds.
07:20:38 .
07:20:38 ..
Here's a program that will let you compare toroid vs air core losses:
http://www.dl5swb.de/html/mini_ring_core_calculator.htm
Phil - AD5X
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
Does anyone know the approximate weight, size (HxWxD) of the KPXA100 for the
KX-3? Are their any actual photos of this option other than the posted
drawing?
Any idea of the price for the amp and optional 100 watt auto antenna tuner?
When will these options become available?
Will there be a
On 4/30/2012 6:13 AM, W2RU - Bud Hippisley wrote:
The noise is very likely coming from the pulse-width modulation (PWM)
circuitry that runs the blower motor located in the air handler enclosure
(often located in the attic or on the top floor of a residence). In poorly
designed and shielded
On 4/30/2012 8:14 AM, Ken Alexander wrote:
Any down side to doing this?
Suitable core material is crucial here. The core materials used for RFI
suppression (including those used for common mode transmitting chokes)
work by adding lots of loss into the common mode circuit because they
are
I haven't read the new part 97 yet, but by the old rules, it seems to me
that internet access via amateur radio, unless there is only selective
websites available, would be illegal, UNLESS it is an emergency!
If someone can afford an ocean going vessel, sail or powered, can surely
afford a
N9AA...per your comments...then since you like cwbut it is an outdated
modegive it up and join the rest of the cb=ers and get on ssb.
Sorry, just venting my spleen. Pactor is in sections of the band normally not
used by cw. I, myself am an avid cw user. Pactor users should, like all
Hi Larry,
Can you send me a screen shot of the P3 and/or a picture of the external
monitor so I can see what it looks like? I believe you have my email
address, if not it's pauls at elecraft .
73,
Paul
N8LP wrote
Thanks for the update Paul. Waterfall bias is a welcome addition. I have
I have seen this topic posted but I guess I missed the corrective measure(s).
My K3 has the latest update and the AGC still just turns off for no reason,
even when it is just sitting there in receive mode. Yes we are using HRD and
the version we have is 5.11 build 3209.
Any additional feedback
Bill,
When it comes out in the next couple of days, download the 5.2x version of
HRD. It should resolve this issue. If not, the new owners of HRD plan to
have it corrected in v6.0, which comes out the week of Dayton.
--Ian
Ian Kahn, KM4IK
Roswell, GA EM74ua
km4ik@gmail.com
K3 #281, P3
I am now up and running on psk31.
I had my power set to 25watts and all is well. If I try to increase it to 30
watts, people say I have side bars. OK not sure what that is, but running 25
watts.
I see stations that say they are running 50 and even a 100 watts.
How are they able to run so much
Sidebars are a visual indication of signal distortion .. not the power
level being transmitted. You have a signal *quality* issue which is
most often caused by overdriving .
Don K7FJ
On 4/30/2012 11:06 AM, KC6CNN wrote:
I am now up and running on psk31.
I had my power set to 25watts and
On 04/30/2012 02:06 PM, KC6CNN wrote:
I am now up and running on psk31.
I had my power set to 25watts and all is well. If I try to increase it to 30
watts, people say I have side bars. OK not sure what that is, but running 25
watts.
you need to read this:
John Bohnert wrote
I recently downloaded JT656HF by W6CQZ and have on several occasions
monitored 14.076 MHZ with my K3/Signalink USB using this software. I am
still in the process of trying to set up the software and gaining an
understanding of how to use it. I experience the following:
Yes, I guess you could say I am a new ham, having only been licensed
since 1977. Despite this, I've sent and delivered a few hamgrams, and
the difference between them and Pactor is that a ham had to be the
intermediary, as opposed to sending a communication directly to someone
who is not
Gerald, Ron and all,
CAUTION: That document's rig setup is incorrect for Elecraft gear.
Following the transmitter setup described in that (and many others on
data modes) will not allow the K2, K3 or KX3 to function properly. and
may (in fact) may create a distorted signal - it is a sure way
Ron,
For what purpose is 25 watts more than enough?
I can tell you it isn't enough to try and work VU's and other Asians
under many conditions from the east coast on PSK.
The are times that no amount of legal power will suffice-- e.g. trying
to break through an EU curtain to some rare one.
Perhaps so if the relays were fast enough already, using the AG6K sb-220
design speedup key circuit (EBS) with Jennings RJ1A or Kilovac HC1 relays,
with the 12v reed input relay works nice at 2mS switch times, good for 35
wpm qsk. I have this setup in one of mine and its very economical to
The problem isn't so much that your signal isn't getting there but rather
that the local noise conditions (and pile ups) make it difficult for the DX.
Rick wa6nhc
I will find a road; or make one.
Hannibal
-Original Message-
From: Brian Alsop
The power you need is the power you need.
Bill
If you install Lpbridge which is a port sharing utility which sits between
the K3 and up to 5 applications wanting to communicate with the radio, then
the problem will disappear! It looks daunting to set up, but in reality
it's easy. Problem solved!
73 Stephen G4SJP
On 30 April 2012
Attempting load of latest P3 FW and get an immediate error message
ERROR: Bad character in BIN file
Latest P3 utility (Mac version 1.12.4.260) indicated latest versions available
for sending to the P3 in agreement with the Elecraft site
Any suggestions?
Thanks in advance
John
Gerald,
You do not say what type interface you're using (i.e. SignaLink, RigBlaster,
etc.). Regardless, sidebars on your signal is indicative of you overdriving
your transmit audio - not too much power. As long as I do not overdrive my
transmit audio, I can run 100W without sidebars and do
Can anyone verify the following?
Headphones: Heil headphones have a 1/4 stereo (200 ohms on the headset)
connected via a straight adapter to 3.5mm stereo jack of KX3 (?? ohms on
KX3)
Mic: 3.5mm mono (HC-4) mic (dynamic?) element - MIC bias set to OFF -
connected to the 3.5mm TRRS tip and
All,
The WINLINK network has been up for years. It has served both the
boaters and emergency/disaster communicators. The FCC does allow this
type of communications as it is considered non commercial. There does
not seem to be anything driving the FCC to overturn their past decision
on
Delete the firmware file you have and fetch it again from the Elecraft file
server by pressing the Copy Files from Elecraft button on the firmware
page.
You might want to view it in the Mac equivalent of Notepad to see what you
have.
The file is supposed to contain characters like 0-9 and A-F,
Folks - this thread was officially ended earlier this morning. Please,
no more postings on this topic.
Eric
Elecraft List moderator
---
www.elecraft.com
On 4/30/2012 1:44 PM, Barry LaZar wrote:
All,
The WINLINK network has been up for years. It has served both the
boaters and
Hola,
K3 is connected to the P3 and P3 goes to USB hub on back of computer for
logging program. How do I include the RS232 to the MkII? Does it require
a Y cable for the RS232 or a hub connection like a Belkin? The reason
for the MkII is to allow MTTY and PSK macros and to use keyboard cw
microHAM interfaces *replace* any other connection to the computer.
With K3/P3, the RS-232 connection from the microHAM interface is
connected to the computer jack on the P3, the radio jack on the
P3 connects to the K3. Set K3, P3 and Router all to 38.400 bps.
73,
... Joe, W4TV
On
Tom,
If you had it working before with the K3, connect things the same way,
except that 'same' connection is to the P3 instead of the K3. The P3
connects to the K3 with the supplied cable.
73,
Don W3FPR
On 4/30/2012 6:05 PM, cx...@4email.net wrote:
Hola,
K3 is connected to the P3 and P3
Just one caveat that Joe has mentioned several times. Do not use the
MicroHam interface for loading firmware - that is when you need your USB
to serial cable connected to the P3 in place of the MicroHam interface
RS-232 cable.
73,
Don W3FPR
On 4/30/2012 6:13 PM, Joe Subich, W4TV wrote:
See message below
- Original Message -
From: Linda and Bob dlrwi...@verizon.net
To: elecraft@mailman.qth.net
Sent: Monday, April 30, 2012 12:40 PM
Subject: KPXA100 amp for KX-3
Does anyone know the approximate weight, size (HxWxD) of the KPXA100 for
the KX-3? Are their any actual
Windows4P3 is now in beta. You can get the latest versions of the software
and documentation at
VA2FSQ.com.
The web site is new, I still have alot of learning to do here!
--
View this message in context:
http://elecraft.365791.n2.nabble.com/Windows4P3-Status-tp7488686p7515283.html
Sent from
Bob,
Sorry, but none of that information is not yet available.
As far as size, I can make a wild guess based on the volume of a typical
100 watt amplifier and 100 watt tuner and say that the total volume will
be similar to that of a KPA100 plus a KAT100 - which fit inside an
Elecraft EC2
Some time last year Eric or Wayne gave an approximate idea of size and
weight they had in mind back then. I am presuming the K2 and K3
amps/tuners are a good volume/weight predictor just need to be re-laid
out for the KX3.
the two together was something like 4 x 5 x 9 and 6 pounds as an idea
Like all zero-I.F. (or nearly zero I.F.) transceivers, the KX3
radiates a small amount of local oscillator (L.O.) energy backwards:
through the mixer, and out the antenna jack.
Normally this is not a problem. However, if you have another rig in
the same location, with the two antennas not
I was going thrugh the manual today, and it seems that a fixed audio output is
missing entirely from the KX3, why?
Fixed audio output is important for us who routinely run digimodes.
There is also a lack of a separate audio input, which is just as important when
running digimodes.
So to run
Why settle for KX3-2M? Why not KX3-2M/70cm?
This pretty much says it I think.
Why settle for only 2 m, why not also include 70 cm in the KX3-2M?
With a 2 m and 70 cm module available the KX-3 will complete replace the
FT-817, at least in my travel kit.
Best regards,
Martin Storli
LA8OKA
On 4/30/2012 12:23 PM, Brian Alsop wrote:
The power you need is the power you need.
Yup. This morning about 11Z I was trying to work a guy in FL on 160M
JT65. His noise level was so high that I had to drive the KPA500 to
500W to make the QSO. I've had similar experiences with many other
Hi Martin,
A 2-m module is difficult enough given how little space is available.
We'd like to do other VHF/UHF bands, but I'm not sure if it's
possible. It would be fun to try.
73,
Wayne
N6KR
On Apr 30, 2012, at 4:35 PM, Martin Storli - LA8OKA wrote:
Why settle for KX3-2M? Why not
Martin Storli - LA8OKA wrote:
It seems that a fixed audio output is missing entirely from the KX3,
why?
Hi Martin,
Our goal was to make the KX3 the smallest, lightest, most portable all-
band/all-mode radio ever. We had to draw the line somewhere on
features, battery size, number of
What a pleasure to assemble and what a joy this rig will be. I Spent a
few long enjoyable evenings last week putting it to together and only
had a few minor moments of confusion mostly due to me being tired.
This is rig is a huge jump from the TS430s and the KW2000b that I was
using
In the Middle Ages, the philosophers debated how many angels could fit in a
space equal to the head of a pin. The ham question for our era is, how many
dimbulbs can transmit within 1 hz of the DX?
Tony KT0NY
--
http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
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