Thanks for all of the excellent advice.
To sum up, today I measured a 4:1 current balun backwards and Tom was pretty
right on... the high frequency cutoff is so severely lowered that it is
unusable
for my application. I did not test a 4:1 voltage balun.
I think one approach to take is to use
On Fri, 6 Aug 2010 19:57:20 -0700 (PDT), Al Lorona wrote:
Can it be connected backwards
A MUCH better question is, EXACTLY WHAT ARE YOU TRYING TO ACCOMPLISH?
73, Jim K9YC
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I think one approach to take is to use a unun to transform down to 12 ohms
and
then a conventional 1:1 balun following that to transform to a balanced
feed.
I'll try this and report back if it doesn't work.
You will have trouble. Lead lengths will kill SWR (as will lengths through
Anyone know if it's possible to configure all four of the above to
simultaneously run CW Skimmer and SpectraVue? I have tired every possible
iteration to port audio from SpectraVue to CW Skimmer with no luck. I've
also tried VAC and still no luck.
If there's anyone that's successfully tried
Why not publicly? Would be helpful to others, I should think, if it is
possible.
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Paul Christensen
Sent: Sunday, August 08, 2010 8:16 AM
To: elecraft@mailman.qth.net
Subject:
Mark,
That has to be either a firmware glitch (not likely), or the result of
RF-in-the-shack causing it. The internal keyer routines in the firmware
have been in place for a long time, and this is the first report of that
behavior that I have heard. If it were a firmware problem, I would
Hi Larry:
I have a question about hooking up the P3 to the K3 12vdc out.
I'm using a cable of your design and it's been really great.
I'm using that output for the 12vdc sense voltage to turn the Quadra
on and off.
My P3 will be here Monday.
It seems to me the that cable they supply is made
As a long time high speed CW op, let me pass on an few of what I feel are the
keys to learning to receive effortlessly at QRQ levels. The goal is to get to
the point where listening to CW is exactly like listening to a conversation;
that is, there is no conscious translation from dits and
Al, your comments about Jerry's book makes me wonder even more about what you
are trying to do with a backward 4:1 balun. With a BS in Physics and 30 years
as an EE I found the book anything but a cook book. To begin to understand
what
I thought previously to be a simple device I had to drag
Willis 'Cookie' Cooke
K5EWJ
From: Dale Putnam daleput...@hotmail.com
To: ki...@dospalos.org; dstev...@alldata.net; ab...@yahoo.com;
ka5...@hotmail.com; elecraft@mailman.qth.net; safetyboss2...@msn.com;
e...@elecraft.com
Sent: Sun, August 8, 2010 5:18:25
Hi, Ted:
Yes, the LP-Bridge requires one to keep the P3 turned off until the
end.
LP-Bridge is not required, of course, but I had left mine in play
because I originally was running the P3 and the LP-PAN in parallel and
hadn't gotten around to reassigning COM ports to my logging
Hello Elecrafters,
K3 #4518 arrived via UPS last Tuesday afternoon and made the first contact last
night. The inventory and build took me about 11 hours over the course of 4
days with lots of stopping and starting. All the checks and calibrations went
smoothly.
The excellent documentation
Mike,
I have not found this to be critical at all, once the audio and VOX levels
are set. First, using manual keying adjust the level out from the sound
card and the LINE input level on the K3 to just get the required 4-5 bars
of ALC. Then increase the K3's MAIN:VOX GN setting until the output
And turn off all WINDOWS alterts, sounds when operating AFSK!
73 DE Brian/K3KO
Richard Ferch wrote:
Mike,
I have not found this to be critical at all, once the audio and VOX levels
are set. First, using manual keying adjust the level out from the sound
card and the LINE input level on the
Bill...
Good advice. You may be amused to hear MY version of reading some
printed material while listening for phrases. I spent 15 months in
west Germany (before the re-unification) as a guest of their gov't,
and took along my Kenwood TS-520 and a fold-up vertical. All of my
operation
Thanks Gary,
I have an LP-PAN and will continue to use it even though I have the P3.
It is still needed if you want to run CWSkimmer. Even if I weren't
going to use LP-PAN I would still want to keep LP-Bridge running because
it allows multiple programs to control the K3 - one of those things
... Maybe it is a nit on my
part but the RS-232 port on the P3 is supposed to be transparent to apps
connecting to the K3 via RS-232 and it isn't - not strictly speaking
anyway since LP-Bridge hangs while connecting to the K3 if the P3 is
on. I figure now is the time to get Elecraft to
Thanks Rich.
Turning up the vox gain did it, and I was able to turn down the computer sound
card a
bit to get the ALC reading correct. I didn't want to mess with the MIC gain,
because
it's touchy for me to set it for phone. I'd like to turn VOX off for phone
only, but
that's not possible
Ohhh yeah, Been bit by that too.
73, Mike
On 8/8/2010 10:53 AM, Brian Alsop wrote:
And turn off all WINDOWS alterts, sounds when operating AFSK!
73 DE Brian/K3KO
Richard Ferch wrote:
Mike,
I have not found this to be critical at all, once the audio and VOX levels
are set. First,
... Maybe it is a nit on my
part but the RS-232 port on the P3 is supposed to be transparent to apps
connecting to the K3 via RS-232 and it isn't - not strictly speaking
anyway since LP-Bridge hangs while connecting to the K3 if the P3 is
on. I figure now is the time to get Elecraft to
Would anyone be interested in an Elecraft DC power supply? It would look
nice to have a powersupply that matches my K3! Maybe in two models. First a
QRP model super clean DC, the other a 25-30 amp model. Anderson Powerpoles
on the BACK so you dont have wires bent around the back of the
Mike,
On the K3, MIC level and LINE level settings are independent; you can
adjust the LINE level in data modes without affecting the MIC level for
voice and vice versa.
Regarding changing levels in different software, you might take a look at
QuickMix (http://www.ptpart.co.uk/quickmix/) - this
Would it be cheaper and better then my Astron power supplies? My Astron's do
not sit next to my K3 or any of my other equipment. Therefore, whether they
match the look of a K3 (or not) is not important.
But, if a kit version were produced and if it was cost comparable to other
non-kit power
Yes, that would be interesting, especially if the options included solar
charge controller and generator options--a green Elecraft power supply
system useful for various DXpedition, emergency and home uses.
Rich
NU6T
On 8/8/2010 9:24 AM, Nicholas Farrar wrote:
Would anyone be interested in an
I have heard a rumour of a commonly available power supply that was
installed in the back of a P3. Can anyone conform or deny this?
And, if confirmed, publish photos?
I suspect it wouldn't be hard to put a QRP-level PS/charge controller
in the KPA3 space, either.
73, doug
Date: Sun, 8 Aug
I have seen this on occasion with my K2. Occasionally I get a very long DAH
when I key as if I have mis-keyed. Tap the DIT paddle and all is well again.
I only run 5W so I don't think it is RF, I suspect a bug in the firmware.
But so infrequent not to worry about.
73 Dave G3YMC
K2 #2498
--
Rich,
Both use the MIC knob tho, right?
Quickmix looks good, thanks for the link.
This afternoon I'm may run down to the candy store and look at sound cards,
probably
a USB one. When you add another sound device, how do the Windows mixer controls
work?
I'd guess it works for the default
This sounds like the K2's auto-detect feature, which allows connecting
both paddles and a straight key or computer, along with a couple of
diodes, at the same time and sending from either. If the paddles are
squeezed at exactly the same time, it looks like the straight key to
the circuit. If I
Nevertheless, it's not transparent. Maybe we should allow it to be
translucent? :-)
73, Ted, W2ZK
On 8/8/2010 12:22 PM, Joe Subich, W4TV wrote:
... Maybe it is a nit on my
part but the RS-232 port on the P3 is supposed to be transparent to apps
connecting to the K3 via RS-232 and it
The issues in putting a linear supply in the P3 case are both the
size of a transformer capable of handling 25A continuous/30A peak
(or the cost of a special toroidal transformer) and the necessary
heat sink area for the pass transistors.
Switching supplies also have issues with heat sink area
On 8 Aug 2010 at 12:09, Peter Wollan wrote:
This sounds like the K2's auto-detect feature, which allows connecting
both paddles and a straight key or computer, along with a couple of
diodes, at the same time and sending from either. If the paddles are
squeezed at exactly the same time, it
No Fan please Figure out a way to cool it with heat sinks but please no
more fans.
Steve
N4LQ
- Original Message -
From: Nicholas Farrar nfar...@bfpacs.com
To: elecraft elecraft@mailman.qth.net
Sent: Sunday, August 08, 2010 12:24 PM
Subject: [Elecraft] Power Supply
Would anyone
Both use the MIC knob tho, right?
Yes, but the mic knob is an encoder ... changes mic level in SSB
and Line level in Data A/AFSK A if you are using Line In. The
mic /line levels are maintained separately.
When you add another sound device, how do the Windows mixer
controls work?
Depends
Mike,
Both level controls use the MIC/SPEED knob. You can see the current
setting by tapping the knob twice (once for CW speed, once for the level
setting). Right now mine reads MIC 21 when I tap it with the radio in a
voice mode, and LINE 8 when I tap it with the radio in data mode.
Adjusting
On 8/8/2010 12:24 PM, Nicholas Farrar wrote:
Would anyone be interested in an Elecraft DC power supply? It would look
nice to have a powersupply that matches my K3! Maybe in two models. First a
QRP model super clean DC, the other a 25-30 amp model. Anderson Powerpoles
on the BACK so you dont
A big thanks to all the developers of Mac ham radio software and
utilities. I am in the midst of a move (physical) that was proceeded by
a move (PC - Mac). The hold up had been the availability of Mac Ham
software. There are still some holes here (Weather related, like GR
Level 3) but as I
Couldn't agree more!
I've resolved that I simply will not buy another piece of radio
equipment that has fans.
73
--
Joe KB8AP
On Aug 8, 2010, at 10:30 AM, Steve Ellington wrote:
No Fan please Figure out a way to cool it with heat sinks but
please no
more fans.
Steve
N4LQ
-
Anyone going? Bringing your Elecraft products? I might be able to attend,
and have a banner, some literature, etc.
Mike
AI4NS
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Help:
Don't know about anyone else, but I'm perfectly satisfied with the performance
of my 25A MFJ switching PS. It's small, light, cheap, and noise (electrical)
free. The only caveat is its loud cooling fan.
James K2QI
Sent via BlackBerry from T-Mobile
-Original Message-
From: Joe
I believe those little fans are cheaper than a large aluminum heat sink. Did
you ever count how many fans are running in the average shack? With 2 PCs
and my rig, I count 9. I use the Astron linear supply to avoid yet another
one.
Steve
N4LQ
- Original Message -
From:
I find that selecting and then copying my memory list in the editor and
then pasting it into Excel, lets me massage it quite nicely (colors,
fonts, etc.) for printing. It sure is a great way to manage memories.
Thanks Elecraft. 73, Lee (K9CM)
All the fans in my station are overwhelmed by my air
conditioner and heat pump.
Sent from my iPhone
On Aug 8, 2010, at 14:07, Steve Ellington n...@carolina.rr.com wrote:
I believe those little fans are cheaper than a large aluminum heat sink. Did
you ever count how many fans are running in
Nicholas,
That would be a fine addition. Start with 25A
continuous, 30A ICAS, add a *good* front facing speaker, 2-
4 pair of Anderson power pole connectors in the rear, 1
binding post just because, an ammeter and a voltmeter,
adjustable over-voltage protection with indicator, and you
are
On 8/8/2010 8:55 PM, k2qi@gmail.com wrote:
Don't know about anyone else, but I'm perfectly satisfied with the
performance of my 25A MFJ switching PS. It's small, light, cheap, and noise
(electrical) free. The only caveat is its loud cooling fan.
James K2QI
Sent via BlackBerry from
How about auto fail-over to a battery backup, with recharge
upon restoration of commercial power ?
73
K1NR
K2 6k
On Sun, 08 Aug 2010 09:41:41 -0700
Richard Hill reh...@ix.netcom.com wrote:
Yes, that would be interesting, especially if the options
included solar
charge controller and
OK, IMHO, I don't think a non ham device needs to be on the operating
position. I use a linear ASTRON with remote sensing of the voltage at the
radio and a 5 Farad cap under the shelf and then the problem is solved. Good
clean DC and no noise in the shack.
Mel. K6KBE
--- On Sun, 8/8/10,
Now thats what I was thinking. It would be a little expensive but I would
pay a little more for an Elecraft quality design not to mention the
powerpoles. I would want a linear power but I thought that was implied. I
don't mind if it has a fan that is a quiet as the pair on my K3 and only
comes on
Do I need to install the KXV3 RXA board or is that mod already in the
KXV3A?
Thanks in advance, Dave
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I presently have an Astron that does nicely. Like Phil, I don't care if it
doesn't match the K3 because it's on the floor under the operating desk.
It's linear and I have learned (the hard way at times) that other
electronics can be adversely affected by the big magnetic field around the
supply
At the moment there's only about a 4x4x6 space available inside the P3
(unless you want to build something with a very odd form factor to fit
around the pc boards).
And that's at the moment. IMX, Wayne has a habit of eventually occupying
every cubic millimeter of space inside a cabinet with
DBellW6AQ wrote:
Do I need to install the KXV3 RXA board or is that mod already in the
KXV3A?
No, it's in there already!
73, Bill
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View this message in context:
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Sent from the Elecraft mailing list
Thanks, Lee. Print is on my to do list but I wasn't planning to get very fancy.
A spread sheet allows you to play with column sizing, fonts, colors, and remove
columns that aren't of interest.
Dick, K6KR
Sent from my iPhone
On Aug 8, 2010, at 12:40 PM, Lee Trout trou...@gmail.com wrote:
I
Thanks Joe.
This will mostly be on XP, with occasional excursions on Win7. What does
directly
selecting the endpoint mean? I'm real new to Win7.
I saw some 99 cent units on the estore. Maybe a bit TOO cheap. ;-)
73, Mike NF4L
On 8/8/2010 1:36 PM, Joe Subich, W4TV wrote:
Both use the
Rich,
A very good explanation. I got 1.66G a couple of days ago.
It's SO nice when a problem is solved.
73 Mike
On 8/8/2010 2:04 PM, Richard Ferch wrote:
Mike,
Both level controls use the MIC/SPEED knob. You can see the current
setting by tapping the knob twice (once for CW speed, once
Hello Group,
Har! getting old is not for sissies!! I was coping cw with my new (first
ever) hearing aids. When they are out, rx is normal. With the aids in, its
picking up the high pitch. Sorry about the wasted bandwith.
Thanks
Don...w2xb
--
View this message in context:
Astron makes power supplies for the two-way
radio market that have speakers.
73! Ken Kopp - K0PP
elecraftcov...@rfwave.net
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Don,
Have your audiologist give you a program setting with no noise
reduction. You can use it for CW as well as listening to music.
Mine default to that program and stay there until I encounter a
situation where the NR helps - noisy places or if there is a lot of
background noise.
If these
Thanks Don,
will wait serveral weeks and then go in for a tune up..
boy its nice to hear again...
Don...w2xb
--
View this message in context:
http://elecraft.365791.n2.nabble.com/re-cw-recieving-tp5387149p5387306.html
Sent from the Elecraft mailing list archive at Nabble.com.
East coast stations were not very strong today, and we had no California
check-ins. Lyle using his prototype KPA500 was S9+10 into the side of my
quad - not bad for less than 300 miles! The net only ran 20 minutes with 26
participants. No discussion. Here is the list of the participants.
Station
This is a strange long delayed echo. I sent it yesterday morning!
73,
Phil
NS7P
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Phil and Christina
Sent: Saturday, August 07, 2010 9:16 AM
To: elecraft@mailman.qth.net
W2XB wrote:
Hello Group,
Har! getting old is not for sissies!! I was coping cw with my new (first
ever) hearing aids. When they are out, rx is normal. With the aids in, its
picking up the high pitch. Sorry about the wasted bandwith.
I'd normally reply direct but there has been a sporadic K3
Couldn't hear anything but S7 noise in eastern Mass.
Phil and Christina wrote:
East coast stations were not very strong today, and we had no California
check-ins. Lyle using his prototype KPA500 was S9+10 into the side of my
quad - not bad for less than 300 miles! The net only ran 20 minutes
This will mostly be on XP, with occasional excursions on Win7.
What does directly selecting the endpoint mean? I'm real new
to Win7.
When you open the Volume Mixer in Windows 7, the device box
has a drop down box (down arrow to the right of Speakers etc.)
that allows you to select the
Thanks Fred.
Don...w2xb
--
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Sent from the Elecraft mailing list archive at Nabble.com.
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Hi All,
I have a K2 which I bought used. I never really used it on SSB but from time
to time would like to.
The problem is when I transmit (Mic is the Elecraft MH2) I get very hard ALC
action which jumps to full ALC scale reading.
I tried to inject (via the Mic in a quiet room) a constant
On 8/8/2010 11:46 AM, Joe Planisky wrote:
I've resolved that I simply will not buy another piece of radio
equipment that has fans.
There are fans and there are FANS!
I just replaced my main computer which sounded like a vacuum
cleaner when it was running with a brand-new (expensive)
Nevertheless, it's not transparent.
Depends on one's definition of transparent. It appears to work with
every application I've thrown at it except for initializing LP-Bridge.
To me that implies an issue with LP-Bridge - perhaps an excessive
sensitivity to timing - not an issue with the P3/K3.
What are you running with NR, NB, what bandwidth, roofing filters,
etc? 73, Guy.
On Sun, Aug 8, 2010 at 5:56 PM, W2XB haircut...@verizon.net wrote:
hello group,
Noticed the past couple days that when I tune on a cw signal on my K3 (all
updates) and go to the top edge of the signal its tone
Phil:
In this case, may I refer you to the hearing aid thread?
joke
Steve
N4LQ
- Original Message -
From: Phil Kane k2...@kanafi.org
To: Elecraft elecraft@mailman.qth.net
Sent: Sunday, August 08, 2010 8:06 PM
Subject: Re: [Elecraft] Power Supply
On 8/8/2010 11:46 AM, Joe Planisky
Do you know how the P3 is implementing the transparency? Why do you
feel it necessary to prejudge? Oh, right ...
73, Ted, W2ZK
On 8/8/2010 8:07 PM, Joe Subich, W4TV wrote:
Nevertheless, it's not transparent.
Depends on one's definition of transparent. It appears to work with
every
Yep, a few of them are still with me like: CQ and SK and TEST and
RST and NAME...pretty good since the last time I operated CW for any
extended time was in 1958-1959 as a novice!
But you have hit on what my problem is -- No parallel processor!
;-) MY wife can rattle off at length when I am
Watching the P3 while listening to DX operating split and using
the second receiver to listen to the pile-up, for the first time, is a
technique that everyone told me would be nice but I wasn't prepared for how
easy and effective it turned out to be. Everyone knows how to set up the
Sanjin,
What setting do you have for the SSBA menu parameter - for the MH2, it
should be set at 1.
Does your K2 have any additions to the KSB2 board, such as the KI6WX
increased gain mod? If you don't know, open the K2, remove the KSB2
board and check for an additional transistor mounted on
Hello Don,
thanks a lot for taking you time!
I have SSB-A set to 1 but I can get a lot ALC action very easily.
My KSB2 Board is a Revision D with firmware 1.08 and there is no additional
transistor around U5 on the top or the bottom side of the board. I do have
an KPA100/KAT100 in an EC2
There is a repeatable problem in the P3 display of the bandwidth
cursor in AFSK A and FSK D data sub-modes. In both submodes the
VFOs (correctly) display the RF frequency of the MARK (as set by
Pitch). However, the P3 displays the filter limits as if the
mark frequency were always set to 915
Even with the latest version of LP-BRIDGE (9.8), I continue to
experience some rig time outs. All occur during periods of transmitting
where one does not drop back to RX during that period. Direct connect
without LP-BRIDGE shows none of these. They happen even with the K3
throttled back to
Joe Subich, W4TV-4 wrote:
There is a repeatable problem in the P3 display of the bandwidth
cursor in AFSK A and FSK D data sub-modes. In both submodes the
VFOs (correctly) display the RF frequency of the MARK (as set by
Pitch). However, the P3 displays the filter limits as if the
Good Evening,
Twenty meters was fairly quiet yet it provided strong signals. Two CT
stations both of whom sounded very good. However, I wonder where everyone else
has gone? Maybe the long spate of unfavorable propagation has forced them into
other endeavors. Maybe a bit of advertising
Rotary controls in the K3 and P3 increase their parameter as the
encoder is turned clockwise except in two cases.
1) The P3 REF LVL is decreased with clockwise rotation. Maximum
reference level is -10 dBm with the encoder fully counterclockwise
while it is minimum -160 dBm with the
Do you know how the P3 is implementing the transparency?
Only that it appears to implement it with all of the software
I've tested (except for LP-Bridge obviously).
Why do you feel it necessary to prejudge?
Who is prejudging? If other software operates normally while
LP-Bridge which has
Thanks Bill.
73,
... Joe, W4TV
On 8/8/2010 10:14 PM, Bill W4ZV wrote:
Joe Subich, W4TV-4 wrote:
There is a repeatable problem in the P3 display of the bandwidth
cursor in AFSK A and FSK D data sub-modes. In both submodes the
VFOs (correctly) display the RF frequency of the MARK
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