Ok so I've never done RTTY via true FSK only audio modes... I have to
put in a fence this weekend so I won't be able to play this weekend but
I'm trying to get ready for FD...
So I've made an interface that consists of a couple opto couplers (one
for FSK and one for PTT)... I've got the radio
:
Brett
Go into device manager and change the COM number to something unused and
other than 3. As you know, many computers reserve or use COM3 in the
background for such things as modems.
73
Greg
AB7R
On 6/11/2010 3:54 PM, Brett Howard wrote:
Ok so I've never done RTTY via true FSK
by how simple it is, and
less complicated to set up. AFAICT, FSK offers no advantage.
73, Mike NF4L
Brett Howard wrote:
Ok so I've never done RTTY via true FSK only audio modes... I have to
put in a fence this weekend so I won't be able to play this weekend but
I'm trying to get
Its not more difficult just more fun cause I got to pull out the screwdriver
and soldering iron. That and it was harder for me cause that method I'd not
used before. I like using fsk and made a few contacts with it last night so
I can now say Ive make both ways work successfully.
~Brett (N7MG)
I tried it over the weekend when the RTTY contest was going on and used
FSK for the first time... Was able to get a few to come back to me then
had to rush back out and get back to work on the fence...
~Brett (N7MG)
On Mon, 2010-06-14 at 15:45 -0700, Julian, G4ILO wrote:
Has anyone tried the
This is very interesting! I'd not heard about this board but I did
see all the extra connection holes in the K144XV shield! I'm very
interested to get the feature to be able to use the subRX on 2M while
the main is not! This is one of the things I was hoping to be able to
do with the unit.
When you say that it didn't work what did it do? If you have an
RX_ANT_IN on the back of your K3 then you do have the KXV3 or KXV3A
installed in your radio. When you pressed the button did you get an
RX on the display? Also make sure that you have enabled the KXV3 in
the config menu. If you've
Ok so I just got an idea on how to make my FSK interface cleaner... I
ended up with something very similar to the W3YY interface on my first
attempt. You can see their interface here:
http://www.w3yy.com/fsk.htm
Anyway I had a box and two cables coming out of it with a DB9 on one
and a DB15 on
So you bought the TCXO because you wanted to be able to say that it
was further temperature compensated by firmware? Because what was
promised was that it would get to 0.5PPM via additional firmware
correction. Well it turns out that the oscillators already do that
out of the box. Thus
the world is being run by smart people who are
putting us on or by imbeciles who really mean it.
-Mark Twain, author and humorist (1835-1910)
On 17 Jun 2010, at 19:37, Brett Howard wrote:
So you bought the TCXO because you wanted to be able to say that it
was further temperature compensated
Actually the K3 can sell a LOT less than 100Million and be on par with
the number of IKY's sold. While Elecraft is a Ham Radio only
organization IKY make a lot of money selling communications products
to completely unrelated sectors.
~Brett
On Thu, Jun 17, 2010 at 12:32 PM, w...@w5ov.com
Yep just get the Kenwood adapter cable and it'll plug right in and
work like a champ!
~Brett (N7MG)
On Thu, Jun 17, 2010 at 1:55 PM, Robert Mitilieri rc...@yahoo.com wrote:
Has anyone used a Heil Goldline mic with a K3? I would like to use the Heil
with my soon-to-arrive K3. It works great
sleep, so life well used brings happy
death. -Leonardo da Vinci, painter, engineer, musician, and scientist
(1452-1519)
On 17 Jun 2010, at 21:46, Brett Howard wrote:
You can input the information via the K3 utility. It is then stored in the
radio...
~Brett
On Jun 17, 2010 1:16 PM, David
Thats a feature. No matter what you enter you'll always get the
0.5PPM that you paid for. ;)
~Brett
On Thu, Jun 17, 2010 at 2:27 PM, Grant Youngman n...@tx.rr.com wrote:
The current OS X version of Utility does not have the feature. YOu have to
use the Win(doze) version.
The RADIO -- you
comments, they have helped me understand this better.
73 de M0XDF
--
It is not how old you are, but how you are old. -Jules Renard, writer
(1864-1910)
On 17 Jun 2010, at 22:13, Brett Howard wrote:
You said you wanted to be able to calibrate it via the data that came
with the device. You can
I had the pleasure of helping out at the Elecraft booth at SeaPac
recently and I also took a bit of time to go and listen to how Icom's
booth was going...
The Icom booth guys seemed to be marketing guys who don't really do a
lot of ham stuff. The Elecraft booth was being assisted by customers
No you're just able to have the dummy load on either port when you do
so.
~Brett (N7MG)
On Fri, 2010-06-18 at 20:35 -0400, Gary Lee wrote:
Must I do this for each antenna port?
__
Elecraft mailing list
Home:
Perfect! The higher the frequency you use the better!
~Brett (N7MG)
On Fri, 2010-06-18 at 21:12 -0400, Andrew Moore wrote:
I ended up using WWV at 20.0 MHz.
Works great.
Problem was that the freq must really be known -- i.e. the XG2 won't cut it,
unless I know its exact frequency...
So why exactly are you selling a K3 to buy a K3? Is it just that you
didn't build this one and you want one that you built?
~Brett (N7MG)
On Sat, 2010-06-19 at 13:58 -0400, NZ8J wrote:
I have a K3/100 (serial no. 2255) with many options I would like to
sell.
It has the following options
Do you have mono plugs on any of your speakers?
~Brett (N7MG)
On Sat, 2010-06-19 at 11:13 -0700, K3PIN wrote:
I just upgraded the firmware in my k3(#2453) and now there's no audio from
the internal speaker or the external speaker I have. I can get sound from
the phone outputs. I think the FW
Huh... I'd have never thought to use a PIC for something like this... I
swear one of these days I really should look into PICs but I've always
been the type to solve things with programmable logic or to go all the
way to an ARM based solution. Recently did a project where cost was
king and was
Hold down DATA MD and make sure that you are in a AFSK mode.
~Brett (N7MG)
On Mon, 2010-06-21 at 20:01 -0700, Brandon673 wrote:
Is there something I'm missing? I am unable to setup my K3 to use VOX anytime
its in digital mode without it changing my SSB modes also over to VOX. I
only use VOX
I'd have to go check but I'm pretty sure that VOX is remembered per
band/per mode so you just have to set it that way and it should remember
it.
~Brett (N7MG)
On Mon, 2010-06-21 at 20:36 -0700, Brandon673 wrote:
So no solution? I want VOX to be on no matter what band im on when i select
Data
I need to find an adapter to allow me to use a really low loss cable
that I have...
The cable has one male and one female RP-TNC connector and I need to get
PL259 (UHF) connectors. So I need male-RP-TNC-UHF and
female-RP-TNC-UHF adapters from a place that can 2nd day air ship...
I'm hoping to
I'm trying to find the specs on this chunk of coax that has the RP-TNC
connectors on it... I'm not having a lot of luck but perhaps someone is
more familar with it than I... Its just says Amphenol TWO 6001 9G
Then the box just says its a Cisco Systems Ultra Low Loss Coax
Assembly... And being
I think I found a sheet that says its LMR600 or at least its in a
grouping that makes me think it might be LMR600.
OD on the stuff is .591 by my measurements.
From my calculation a 5:1 mismatch on 100 feet of LMR-400 would still
get me 75watts out the antenna at 30Mhz and things only get better
I know I'm about to sound completely nuts to everyone but I'm just doing
all this stuff for FD... ;)
I'll probably end up using the 100' or 50' chunk of LMR400 that I have
laying around here depending on how far away the antenna has to be from
the tent... Being that I'm going to be running 40
, Jun 22, 2010 at 9:16 PM, Brett Howard br...@livecomputers.com wrote:
I'm trying to find the specs on this chunk of coax that has the RP-TNC
connectors on it... I'm not having a lot of luck but perhaps someone is
more familar with it than I... Its just says Amphenol TWO 6001 9G
Yea I know I'm going way overkill and I was doing all the calculations
by hand of total loss and at a 7:1 SWR (which is entirely possible on
this 43 ft vertical) the loss at 30Mhz can get kinda ugly... I've not
modeled it fully but on all bands but on 20 meters its 7:1 and on 40
meters its 3:1...
I was starting to look at connectors when comparing getting adapters to
use the LMR600 that I have to that of using LMR400 that I have with the
right connectors on it already...
From what I've seen in other models I'm expecting 7:1 SWR on 20 and 3:1
SWR on 40 with the 4:1 UNUN that DX recommends
.
Sam kf4yox
--
From: Phil Kane k2...@kanafi.org
Sent: Wednesday, June 23, 2010 12:10 AM
To: Brett Howard br...@livecomputers.com
Cc: elecraft elecraft@mailman.qth.net
Subject: Re
Couldn't hurt as its going to have all the latest mods.
That is a stiffener and not really a shield. Go to the mod kits and parts
section on the elecraft website and you can read the installation
instructions on that stiffener and even buy one to upgrade your other synth
if you wish...
~Brett
.
~Brett (N7MG)
On Jun 23, 2010 7:22 AM, Radio Amateur N5GE n...@n5ge.com wrote:
On Wed, 23 Jun 2010 00:19:03 -0700, Brett Howard
br...@livecomputers.com wrote:
Ditch the 43 foot vertical! The 43 foot vertical craze is a joke, as
you can see by the figures, Tom, W8JI, gives you in his post
Actually I did one better... I found a great power point presentation
and read that whole thing... Really dug being able to see the SWR
plot that you had in there and that gave me a lot more confidence that
I was going to be able to use my internal ATU in the K3 to get enough
swing to get the job
So I know I'm going to shoot for as wide as I can get things... But for
two main antennas on a k3 one being a Carolina Windom and the other
being a 43 foot vertical.
How much separation would one expect to be needed in order to prevent
the COR's from switching during TX @ 100Watts?
~Brett (N7MG)
, 2010 6:00 AM
To: Brett Howard; elecraft
Subject: Re: [Elecraft] Antenna Separation for Diversity
Brett,
No one can answer that question for you, because both antennas are
unpredictable in nearfield performance. Also the layout of the antenna and
what is around, under, and between the antennas
, 2010 7:30 AM
To: Brett Howard
Cc: Tom W8JI; elecraft
Subject: Re: [Elecraft] Antenna Separation for Diversity
Huh... Broadside to the vertical provided minimum coupling?
Apparently so. See the article by K6STI in the Sept. 1995 QST A
Receiving Antenna that Rejects Local Noise for an explanation
This just gave me a great idea... If any of you have a LP-100A you
can connect an antenna directly into the back of the unit (where the
couplers normally connect) and the unit can then be used as a field
strength meter and it will give values in dBm... Thats totally how
I'm going to determine if
I feel cheated! The 18,000 dollar Agilent scope I have on my bench
doesn't have a clock in it... However the 60,000 dollar Agilent scope
we just bought has windows on it and that syncs up over the net so that
one remains fairly accurate... ;)
~Brett (N7MG)
On Thu, 2010-06-24 at 18:05 -0600,
I've not looked for too long but things were working earlier...
However now even though I have PWR set to 100 Watts I only get about 8
out and the K3 PWR meter only shows 1 bar being highlighted.
~Brett
__
Elecraft mailing list
Home:
Ok well I'll provide a bit more information. I've pulled the PA and
taken a look at things and nothing looks like its gotten hot at all.
Nothing is obviously wrong at all.
I've checked all my filter settings (which hadn't changed since it was
working a few minutes ago) and they all still seem to
, GQRP 9838, FISTS 14077 | K3 #455
http://www.amateurradiotraining.org
On 26 June 2010 09:11, Brett Howard br...@livecomputers.com wrote:
Ok well I'll provide a bit more information. I've pulled the PA and
taken a look at things and nothing looks like its gotten hot at all.
Nothing
Check your filter settings... Being that you are receiving narrower
signals ok but not wider ones I suspect that you have a problem with a
filter offset setting (make sure you put in the - if you have a negative
offset)
Let us know if you figure anything else out or have any further
questions.
I will say that its not implemented yet or even announced but if you've
been lucky enough to see a P3 at a hamfest there is a port which can
allow one to plug in a W2 coupler.
~Brett (N7MG)
On Sat, 2010-06-26 at 17:55 -0700, juergen wrote:
Hi
A friend emailed me this link for a new product
You may look into checking Q8 and Q9 in the post amplifier. You can see
what I'm talking about in the top right section of page 8 on the
schematics (here):
http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf
Also check the resistors around that area for stuff that looks like it
got hot...
I should also add that you can find these components if you pull the
bottom front cover off (the one with the bail on it) and look toward
the right side when the radio is sitting on its top...
~Brett (N7MG)
On Sun, Jun 27, 2010 at 5:35 PM, Brett Howard br...@livecomputers.com wrote:
You may
Actually the K3 can do this!
You just have to setup the K3 to not do delayed memory updating.
Go into the CONFIG:MEM 0-9 menu entry and press the 1 button to select
MV NOR. Now when you're in the memory mode you can turn the VFO and
the memories will be gone to in real time. MV DLY is
I just bought a rigrunner from HRO and also bought some extra APP
connectors... The APP's that came with the rig runner did not have roll
pins but the HRO branded extras that I bought did have them. So there
are still places where you can get your hands on them.
~Brett
On Mon, 2010-06-28 at
When you're displaying Date or time or whatever (there are several other
things that can be shown in DISP mode). Simply turn the VFO B knob to
change to the other values...
The K3 is VERY consistent in that if something is displayed in the top
line of text the VFO A knob adjusts it and if it is
How are you selecting to enable your PR6? Are you using the DIGOUT
line? If so you should be able to see what is going on by looking at
the DIGOUT line.
You will need the RX ant enabled in order to use the PR6. The PR6 is
inserted into your RX_ANT loop when its enabled. Otherwise it simply
Yes this is correct as long as PTT is applied you won't switch back into
RX mode between elements. Its working on VOX is how things should go!
~Brett (N7MG)
On Mon, 2010-06-28 at 13:22 -0400, Mike wrote:
When I send CW from the computer, I don't hear anything until the string
of characters
I actually had a similar experience however our guys were using the K3
an LP-PAN and PowerSDR I/F. They'd go to enter the callsign and the
number of the call would send you off to that frequency. Not to
mention that we were in a white automotive tent which made it quite
bright inside there and
it in Seaside
but there weren't a lot of signals all over just the 4 that were in
the recorder...
~Brett (N7MG)
On Mon, Jun 28, 2010 at 12:54 PM, Brett Howard br...@livecomputers.com wrote:
I actually had a similar experience however our guys were using the K3
an LP-PAN and PowerSDR I/F. They'd go to enter
Mode is off, the displayed panadapter signal amplitude
will not decrease as you tune the band. The displayed signals are real-time
with a display frame rate adjustable to 50 frames per second. Just click
the AVG Button off.
73,
Frank - W6NEK
- Original Message -
From: Brett
Hold the MON button (on the PWR knob) then turn the MON level up and
try it again...
~Brett (N7MG)
On Mon, Jun 28, 2010 at 5:28 PM, Jed Barton j...@jedbarton.com wrote:
Hey guys,
Alright, trying to figure out why i can not hear the recording when i record
with the dvr.
Here's what i do.
Hold the bottom left knob of that quad pack and when you get into that
mode adjust the knob to set the value where you want it to be...
~Brett (N7MG)
On Mon, 2010-06-28 at 20:37 -0400, Jed Barton wrote:
Hey guys,
Alright, got the power thing figured out.
Here's a question, how do i set the
and be able to switch back
and forth to transmit on any 160-6 meter freqs.
Bill
K9YEQ
-Original Message-
From: Brett Howard [mailto:br...@livecomputers.com]
Sent: Monday, June 28, 2010 1:35 PM
To: Bill K9YEQ
Cc: Elecraft
Subject: Re: [Elecraft] PR6 SubRec and two bands
There is an application called K3EZ that will allow you to do just that
if you wish...
~Brett (N7MG)
On Mon, 2010-06-28 at 21:05 -0500, Robert Mitilieri wrote:
Ok, it's only been a few days since I've built my K3 #4411 and I have
something for the wish list.
I would like to see multiple TX
frequency changes. So you see an un-averaged signal immediately after
tuning and then the signal smooths out as the averaging memory is
refreshed. But at least the signal never goes away.
Alan N1AL
On Mon, 2010-06-28 at 12:57 -0700, Brett Howard wrote:
I should add though that they so
would want.
73,
Larry N8LP
Date: Mon, 28 Jun 2010 12:54:03 -0700
From: Brett Howard br...@livecomputers.com
Subject: Re: [Elecraft] Fwd: [FlexEdge] Field Day, Focus and Contest
Skins?
To: Lyle Johnson k...@wavecable.com
Cc: Elecraft Group elecraft@mailman.qth.net
Message-ID
I really wanted to try and trace out what was going wrong with my KPA3
but I was kinda low for time to put into it and the first thing I was
going to need was some ribbon cables made up that would allow me to
remote the KPA3 so that I could trace it while its outside the K3... I
figured I'd move
You may need to update your manual... You should be shooting for only
5-7 bars of ALC. Also make sure that you have compression off when
trying to adjust these settings.
You can find a copy of the latest manual here:
http://www.elecraft.com/manual/K3_Owner%27s_Manual_Rev_D7sm.pdf
Once there
So I've done a few searches and I'm finding all sorts of people
wanting to sell me an adapter cable... But what I'm trying to find
online is a place that gives the pinout for Heil's 4-pin XLR mic's...
I'm also trying to find a local source for the connector and seem to
be striking out so if
Reminds me of the first time a friend of mine asked if they could borrow
my rubber and promised to give it back when they were done... ;)
BTW a rubber is an eraser...
~Brett
On Fri, 2010-07-02 at 17:51 -0700, Lyle Johnson wrote:
Not to mention the use of stick it rather than sell it
We
I finally found some online... And after calling around for a bit I did
find 2 shops that had 4 pin XLR connectors. One shop only had panel
mount versions and the other shop only has right angle versions.
Neither had more than 2 or 3 of them though.
I'm going to go get one of the right angle
Interesting point! I talked to a lot of people at Seaside who decided
that the K3 wasn't their radio because it didn't have a built in fish
finder as many of them called panadapters... This was usually said
by people who were seeing the P3 for the first time and were finally
considering the K3
Doesn't look like it'll fit... Where as the Tamura has 3 possible pins
on a side at .01 spacing the Bourns part has 4 possible pin locations
per side at the same .01 spacing... So they aren't going to be pretty
drop in replacements.'
~Brett (N7MG)
On Sat, Jul 3, 2010 at 4:48 AM, Paul
You need to fully recall the memory into the VFO before hitting scan...
~Brett (N7MG)
On Sat, 2010-07-03 at 16:36 -0400, Jack Colson wrote:
I am unable to enable the scan function. I have stored two frequencies
in memory locations 90 and 91. According to the manual(version D4 page
40)
I find that using M1-M4 as band segment memories works quite well for
me... I'll use M1 as a CW band segment, M2 as an SSB band segment, M3
as a data modes segment...
Then I can quickly recall them and start scanning that segment. They
also make for a quick way to get where I want to be...
Here are the files that Andy has put together. I'm sure they'll prove
useful to some:
Elecraft Low Freq. Mods 2010_1
Elecraft Low Freq. Mods 2010_2
Elecraft Low Freq. Mods 2008_1
Elecraft Low Freq. Mods 2008_2
~Brett (N7MG)
__
Heck a lot of the current quality DMM's will take this in stride... One
of the tests we do when demoing meters (and I've seen it done commonly
from reviewers) is to run a meter through the different feature settings
while connected to the mains. Often we'll just dump the probes into the
wall at
I got a used Fluke 179 for a pretty dang reasonable price that I use for
home use. I don't see them as all that much more extravagant than say a
K3 purchase. Its one of those things that can be seen as one of the
best of breeds and will last you a long time.
~Brett (N7MG)
On Sun, 2010-07-04 at
Its only been released to some of the field testers at the moment. It
has been getting put through its paces so that its truly ready for prime
time once it drops...
~Brett (N7MG)
On Sun, 2010-07-04 at 19:46 +, d_jo...@sympatico.ca wrote:
Has the K3 Frequency Memory Editor been release
And don't forget you also improve value by not having to pay for
features that you won't use. Don't need a tuner? You don't have to pay
for one... Don't want two receivers? You don't have to pay for both of
them...
Then on another note... Want two receivers but don't have the money to
pay
://tinyurl.com/2bbgev7
Hopefully one of these forms works for people...
-- Forwarded message --
From: Brett Howard br...@livecomputers.com
Date: Sun, Jul 4, 2010 at 3:32 AM
Subject: Re: [Elecraft] K3 DSP Board Upgrade Info
To: Andy Wood vk...@woodtech.net.au
Cc: elecraft
Ok not sure if I am understanding this wrong or not... But I've
configured my M1-M4 as follows:
M1 = 14.0 - 14.15 - CW mode - width 350Hz
M2 = 14.15 - 14.35 - SSB mode - width 1.5K w/ a shift of .95
M3 = 14.03 - 0.000 - Data Mode (FSK D) - width 500Hz Dual PB
M4 = 14.03 - 14.06 - Data Mode (PSK
Ok so I'm looking for an auto band pass filter to use with the K3...
Would be slick if the filter could be interfaced directly to the K3 but
I'm planning on needing a band decoder/smart switch for different
widgets later in life that I've been planning on starting so this may be
the opportunity
Ok so I'm looking for an auto band pass filter to use with the K3...
Would be slick if the filter could be interfaced directly to the K3 but
I'm planning on needing a band decoder/smart switch for different
widgets later in life that I've been planning on starting so this may be
the opportunity
Heck I guess I'll stop doing that... I've just kinda learned from
listening to the bands. I'm finally getting my speed up fast enough
that actually carrying on a QSO is possible. At 8WPM your RST, Name,
QTH, RIG and ANT is a 30 to 40 minute conversation. ;) However at
13WPM I've been able to
Ok so I've been looking at setting up a set of bandpass filters that
are automatically selected based on the K3's VFO. I'd like later
flexibility to grow this into a much more complicated system with
possible antenna switches and amplifiers... I know that everyone has
a different setup with
not be as ambitious.
73,
Don W3FPR
Brett Howard wrote:
Ok so I've been looking at setting up a set of bandpass filters that
are automatically selected based on the K3's VFO. I'd like later
flexibility to grow this into a much more complicated system with
possible antenna switches
No the K3 already has transformer isolated line in and line out
connections. These make for very simple connections to onboard sound
cards and if you need an outboard sound card with just two 3.5mm audio
ports these can be had for less than 20 bucks online.
Keeping things in this fashion keeps
I've got a sound good sound card that I just installed into the computer
and it already is very easy to use digital modes with the K3 without an
external device.
~Brett (N7MG)
On Sat, 2010-07-10 at 12:48 -0700, oe9fwv wrote:
I don't trust the quality of an external soundcard of this price. It
I had this going on too and a really slick way to fix the problem is
with an RF limiter...
http://www.iceradioproducts.com/reconly.html#rflimiter
I.C.E. makes a very cost effective unit that gets the job done very
well... I ordered the 196 unit and then I didn't want to have it with
RCA
You're still not going to get access to both IFs at the same time though...
~Brett (N7MG)
On Wed, Jul 14, 2010 at 4:40 PM, Edward R Cole kl...@acsalaska.net wrote:
I have kind of ignoring this thread, but just realized that it
addresses a long-term desire of mine. I would like to tap the IQ
The main reason why most devices take DC in rather than bringing in
direct AC is because they can pass all the safety work on to the brick
manufacturer and it saves them a lot of money in the regulatory end.
~Brett (N7MG)
On Fri, Jul 16, 2010 at 9:08 AM, Paul Christensen w...@arrl.net wrote:
I don't think there is currently a way to do this. Your best bet is to
email Wayne and ask that it be added to the list.
~Brett (N7MG)
On Fri, 2010-07-16 at 20:41 -0400, Gary Dezern wrote:
Anyone?
On Jul 10, 2010, at 4:05 PM, Gary Dezern wrote:
I just installed the DVR module in my K3,
Ok figured I'd ask here and see if someone had some input on the
differences here. Hopefully someone has done more design with these
than I...
My application is that I'm looking for connectors to install on some
high end home made band-pass filters.
83-1R;
frequency, low power (200w) work which I
presume your bandpass filters will be.
High-End? What design?
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard
Sent: Thursday, July 22, 2010 8:22 AM
To: elecraft
Rene put in a few weekends to get things down to that... The guy's
dedicated! Fun guy to talk to... But you end up finding a lot of guys
like that in this hobby!
Thanks Rene!
~Brett (N7MG)
On Thu, 2010-07-22 at 14:34 -0400, w0...@aol.com wrote:
This week I sent my K3 for a factory update
While this is true I still feel that any KEY_IN source be it PTT or VOX
or the paddles it should interrupt the memory keyer.
~Brett (N7MG)
On Fri, 2010-07-23 at 02:53 -0500, Bob Naumann wrote:
The paddle is the most logical device to use to stop the CW from the radio's
memories.
In a
I'll preface this by explaining that I'm a digital guy and I've lately
decided I want to get a little better understanding of magnetics and
RF... Thus why I'm taking on making my own W3NQN band pass filters and
I've also been interested in building a Balun...
So I've looked at a few sites
This sounds really similar to a lot of plans that I've seen... One
other piece that I've noticed on many of these that no one seems to
ever mention is that the two 1:1's are usually wound in opposite
directions on each half of the core... I'm assuming this helps to
reduce the coupling between the
I ended up getting the commercial version of the connector. There
was the cheapest one the commercial one that was only a very small
amount more and then the top one which was quite a lot more... All
three were Amphenol connectors and I'd already gone to buy Amp but it
was just coming down to
Ok I was referring to a design that was using one core to make a
4:1... I think the caveat that was being used was that they felt they
could do this and be safe enough with it still being a balun as long
as the load was floating (but I'm not 100% sure thats really the
case)...
So is a multi
I've heard a lot of really great things about balun designs
products... And in looking at their 4:1 for dipoles and yagi's it
looks like they are simply doing 2 1:1 baluns on a single core. Looks
to me like they are even wrapped in the same direction and paralleled
on one side then series on the
Interesting enough his high power one uses two cores and appears to be
made the same as the budget one that is wound on one core... Seems
like stacking them on top of one another is going to just couple them
and hinder your isolation but maybe I'm wrong there
of Elecraft engineering would give me confidence to try one.
Willis 'Cookie' Cooke
K5EWJ
From: Brett Howard br...@livecomputers.com
To: elecraft elecraft@mailman.qth.net
Sent: Fri, July 23, 2010 3:53:42 AM
Subject: [Elecraft] Balun Questions
I'll preface
Is the custom segmented display on the K3 a TN fluid?
~Brett (N7MG)
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Very nice!! Fun test... You're nuts! But hey so am I. I take it you
have the 250Hz 8-pole filter in your radio in order for that to happen?
~Brett (N7MG)
On Fri, 2010-07-23 at 23:34 +, Rick Stealey wrote:
So now we know it wasn't caused by overload. But since I went to the trouble
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