On Sun, Jan 13, 2019 at 9:15 AM K9MA wrote:
> I've found that during some contest operation, it's handy to call CQ on
> VFO B, while using VFO A to search and pounce. (Known as Single Operator
> 2 VFO mode, SO2V.) That way, when unassisted, I can use the P3 to locate
> promising signals.
On 1/14/2019 6:32 PM, Wes Stewart wrote:
You do realize that if the common-mode current on the line is due to
asymmetry between the antenna and the line, then choking at the
feed-point reduces the CM current at that point, but just like your
example said, a quarter wave *down* the line you
oops. The Elecraft 500 Hz 8 pole filter is discontinued...
http://www.inrad.net/product.php?productid=316=140
73
Frank
W3LPL
- Original Message -
From: "Mark Musick"
To: "Rich" , donw...@embarqmail.com, "Elecraft"
Sent: Tuesday, January 15, 2019 12:17:05 AM
Subject: Re:
I know nothing about the TR7, but I searched the web for "drake tr7 output
power adjustment” and found this useful-looking page, with photos.
http://www.wb4hfn.com/DRAKE/DrakeArticles/TR7_ALC_Control/TR7%20ACL%20Control.htm
I hesitate to answer to this, it's been so
long since I had a TR7 (My 2nd rig) and my
memory of it is not clear.
Given this disclaimer, I believe you'll
find an adjustable piece, two wafers with
a rectangular key hole in the center part
to turn it. Cap or resistance, I don't
recall what it
Hello,
I need a spare KIO2 board …
Reply off list please.
Cheers,
Alan D. Wilcox, W3DVX
570-916-9590 (cell, text)
https://WilcoxEngineering.com
http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments
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Elecraft mailing
On 1/14/2019 19:55, j...@kk9a.com wrote:
Is the issue the way the P3 is used to move in on a signal?
Yes, that is exactly the issue. When unassisted, using the P3 is the
best method I've found for finding new contacts. However, the span has
to be 10 kHz, or it's too hard to resolve cw
https://www.youtube.com/watch?v=FrVDL_-HOds starting at 41 minutes.
Particularly at 1 hour 3 minutes.
On 1/12/2019 9:51 AM, David Woolley wrote:
Do you have a reference for an algorithm that will do this?
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Elecraft mailing list
You do realize that if the common-mode current on the line is due to asymmetry
between the antenna and the line, then choking at the feed-point reduces the CM
current at that point, but just like your example said, a quarter wave *down*
the line you have a CM peak. If asymmetry isn't an issue
If you have a K-Pod it is just as easy to tune with VFO B while running on
A. Is the issue the way the P3 is used to move in on a signal? I have K-Pod
buttons to turn RIT on and off and also to clear the offset.
John KK9A
K9MA wrote:
I've found that during some contest operation, it's handy
Joseph,
Get yourself a *new* #1 phillips screwdriver (if your screwdriver tip
looks shiny, it is worn, throw it away). If you are trying to use a #2
(the most common phillips), then get a #1. You may be wise to replace
the stripped screws. Consider the Stainless Steel screw kit from
Don,
Dummy load is OK, I tested it with another radio (IC-7300) which shows 1:1
SWR.
Thanks for advice about Support. I will certainly contact them.
73,
Dragan, 4O4A
--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft
KAT3A and KIO3B installed! Had a scare as I couldn't remove the bottom
center screw on the right side panel, it started stripping. I had this
issue on one of the front panel screws about a year ago when I was trying
to replace my VFO B encoder. I was able to get the KAT3A installed without
Dragon,
Just to eliminate the dummy load from questions, have you checked that
dummy load with an antenna analyzer on 40 meters? If not, please do
that just to keep it above suspicion.
I certainly don't know the answer. If you cannot identify the problem
source, an email to
Thanks, Gernot. I came to the same conclusion. I also tried using
"BSET", but it doesn't enable the RIT on VFO B. Maybe a firmware update
could fix that?
73,
Scott K9MA
On 1/14/2019 19:01, g...@gmx.net wrote:
Scott,
I looked at the programmer ref manual and realized there is only one
Scott,
I looked at the programmer ref manual and realized there is only one
RIT/XIT, which is controlling VFO A. I guess there are two choices left:
- either you press A/B to switch to your CQ VFO.
- or you try to mimick RIT of VFO B via FBxxx; commands with the help of
an external control
Hi Don,
Thanks for prompt reply.
No KAT3 installed.
I'm aware that it is not a big deal, it's just annoying.
However, I would like to understand what caused it and how to fix it - if it
is a simple solution.
--
Sent from: http://elecraft.365791.n2.nabble.com/
Dragan,
Can I assume that you first tuned the KAT3 to the dummy load on 40 meters?
If you did not, then the L/C combination for the last antenna TUNE you
did are still present, and will show an SWR with a dummy load.
Actually 1.3:1 is quite a workable load on any band. The SWR does not
Try: < http://ftp.elecraft.com/K3S/K3S_comparison1.pdf >
73,
Dale - WA8SRA
On Mon, Jan 14, 2019 at 7:14 PM Robert G Strickland
wrote:
> I can' get this, latest link to work either.
> ...robert
>
> On 1/14/2019 04:11, John Hiatt wrote:
> > It appears to be linked from the K3S Transceiver
Hello all,
Well, I cannot say that it is a high SWR, but when I connect my K3 to dummy
load it shows 1.3:1 SWR on 40M. All other bands 160-10 are OK, 1:1. Other
rigs shows 1:1 on 40M.
Where to start to fix this?
Regards,
Dragan, 4O4A
--
Sent from: http://elecraft.365791.n2.nabble.com/
INRAD has 500Hz 8 pole filters for the K3/K3S.
I have one in the main receiver and one in the sub-receiver.
Mark, WB9CIF
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Rich
Sent: Monday, January 14, 2019 23:56
To: donw...@embarqmail.com; Elecraft
Subject: Re:
I can' get this, latest link to work either.
...robert
On 1/14/2019 04:11, John Hiatt wrote:
It appears to be linked from the K3S Transceiver Product page, on the Manuals
tab toward the bottom of the page, but here is the current link:
ftp://ftp.elecraft.com/K3S/K3S_comparison1.pdf
John,
Page 48 in the K3 manual-Real Time Clock Battery Replacement. It is a CR2032,
BR2032, or equivalent. Maybe it is time to check the one in my K3.
K3
Howard/WX7HS
> On Jan 14, 2019, at 3:59 PM, Bob W7AVK wrote:
>
> What is the battery number for the B/B in the K3?
> Mine needs replacing and
What is the battery number for the B/B in the K3?
Mine needs replacing and don't want to take apart the K3 twice.
Tnx
73 Bob W7AVK
On 1/14/2019 2:10 PM, David Ferrington, M0XDF wrote:
I’ve seen a number of B/Bs leak (not in the K3), at least once corroding the
terminals.
73 de David,
Thanks all. I did read the manual, but it would help if I had read the
entire paragraph and not just one sentence.
In this case they sent me all matching offsets, so they are all the same.
I was surprised that they do not have 500hz 8 pole.
Oh well, back to putting the radio back together
Rich,
Wrong - you must enter the offset frequency.
Related - what is true is that you do not need matched filters in the
main and the subRX for Diversity reception with the new synthesizers.
There are plots on the Elecraft website showing the filter response. I
don't recall if the 500 Hz
This has to do with the synthesizer boards. I believe the answer is that you
don’t need to match them with the new synthesizers. You may need to still enter
the offsets, however.
73!
Jack, W6FB
> On Jan 14, 2019, at 2:30 PM, Rich wrote:
>
> I just received my 500hz filters from Elecraft.
I meant without RIT on.
73,
Bill
K9YEQ
https://wrj-tech.com/
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Bill Johnson
Sent: Monday, January 14, 2019 5:24 PM
To: Kenneth Christiansen ; Wayne Burdick
Cc: Elecraft Reflector ; k...@yahoogroups.com
Subject:
It looks to me like you still have to set the offsets. See manual. It
doesn't appear there is any difference between the K3 and K3s as far as
filter offsets.
When I set up my K3, I tried to get the 200 Hz filter offset "just
right", so the noise would sound exactly the same in USB or LSB (CW
I use spot on KX3 without spot on. Am I missing something?
73,
Bill
K9YEQ
https://wrj-tech.com/
-Original Message-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Kenneth Christiansen
Sent: Sunday, January 13, 2019 7:15 PM
To: Wayne Burdick
Cc: Elecraft Reflector ;
Many thanks to all who replied. My ISP had set spam filtering to "extreme" and
was blocking all of my list servers. All of the messages were still there in
quarantine on my webmail server which I never use. My normal client is
Thunderbird which is clueless in this case.
Supposedly they've
Well they used to be difrentisted from the 8 pole filters haven’t looked for
them on new site.
Eight pole filters have a metal can enclosing them. The five pole filters are
just exposed PC boards.
I think I have offsets set on my K3S for the 200 Hz filters.
Sent from my iPhone
...nr4c.
How about a “K3”?
That’s what it is. My K3 was a K3 when I bought it with 10 watts and no ATU.
It was still a K3 when I had the KDVR, the sub-receiver and 5 filters plus the
BCB mod and a P3.
Sent from my iPhone
...nr4c. bill
> On Jan 14, 2019, at 6:01 PM, JOHN POWELL wrote:
>
>
>
>
How about K3X (XTRA) ?.
Just had my K3, SN 1621, updated at Watsonville HQ with 2 Synths
(have Sub Rx)., plus installation of following upgrades -DSP Upgrade
(K3DSPUPGD-F Mod.), Rx Ant, IF Out, Preamp, Transverter Interface
(KXV3B Mod) ,in addition a full.service. Turnaround
I just received my 500hz filters from Elecraft. I guess I assumed they
were 8 pole, however they are 5 pole. The web page does not specify 5
or 8 pole, or I did not navigate the webpage properly.
So now that I have 5 pole filters, I seem to recall that entering the
offset freq is not
Saw it!
No answers...
Jim Finan
AB4AC
Sent from my BlackBerry - the most secure mobile device
Original Message
From: wes_n...@triconet.org
Sent: January 14, 2019 5:06 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] Testing
I've been having a problem were my posts are either not
I have seen two. My Kenwood TS-850 and TS-50 both had leaky button cells.
73 - Mike - K9JRI
> On Jan 14, 2019, at 5:05 PM, Bill Frantz wrote:
>
> I got a private message asking me how often I had seen button batteries
> leaking. I seem to remember only once, and no damage to the
I’ve seen a number of B/Bs leak (not in the K3), at least once corroding the
terminals.
73 de David, M0XDF (K3 #174, P3 #108)
--
If a man will begin with certainties, he shall end in doubts; but if he
will be content to begin with doubts, he shall end in certainties.
-Francis Bacon, essayist,
I got a private message asking me how often I had seen button
batteries leaking. I seem to remember only once, and no damage
to the equipment it was in. Leaking button batteries may be a non-issue.
73 Bill AE6JV
On 1/14/19 at 10:03 AM, indi...@xsmail.com (Petr, OK1RP/M0SIS) wrote:
Ups, Bill
I've been having a problem were my posts are either not making it to the
reflector or are not coming back to me as a copy, even though they always have
and that is my preference in settings.
Will someone let me know if they see this post. One person will be plenty.
Thanks Wes N7WS
Some have said that the coin cells don't leak...maybe not often but I know of
one that leaked in a Kenwood 850 and ate away some of the circuit board traces.
So regular maintenance is in order for any battery.
Chuck Hawley
Amateur Radio, KE9UW
From:
Jim,
Your comment about hams not being limited, " Huh? We're hams --
we're not limited to products we can buy! And we can build far better
than we can buy.". you may be correct, but from what I see, the majority
of hams, at least around here, buy what they need. Even of our more
serious
Bill,
Certainly not - any firmware changes to the K3S are applicable to the K3
as well. But the K3 is now 10 years old, and there is now not much new
engineering effort going on to make improvements. If problems develop,
they will certainly be addresses - perhaps even with top priority
On 1/14/19 at 5:19 AM, jstengrev...@comcast.net (John Stengrevics) wrote:
Given the increased noise levels most hams face, I emailed Wayne to
ask if improved noise reduction & noise blanking were on their
project list. He said no. So, any improvements are apparently a
long way off.
I agree. And I maintain that the problem is exactly the same with the
common solution of a single-ended tuner feeding a balanced line through
a balun. If there is a big mismatch the choke will get hot.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 14
On 1/14/2019 9:02 AM, Barry wrote:
The simple answer is that the common mode chokes available to hams are
of the unbalanced type.
Huh? We're hams -- we're not limited to products we can buy! And we can
build far better than we can buy. In 2010, I published the design for a
common mode choke
Johnny,
Since any builder can upgrade a K2 by installing the A to B Mod plus any
other associated mod kits, you will have to determine the level by
inspection.
Download the K2ATOB instructions and look at all the associated upgrade
kits listed on the first page - then download the
I bought a older K2 today.
Serial number below 1000.
Which upgrades are recommended by the group?
Thanks
73
Johnny AC0BQ
--
Check out the 4SQRP website at 4sqrp.com
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Elecraft mailing list
Home:
Ups, Bill you scarred me with leaking the cell inside of my K3...:)
OK, OK, OK, I will check it tonite...
-
73 - Petr, OK1RP
"Apple & Elecraft freak"
B:http://ok1rp.blogspot.com
G+:http://goo.gl/w3u2s9
G+: http://goo.gl/gP99xq
--
Sent from: http://elecraft.365791.n2.nabble.com/
Yes, perhaps the RIT knob could be employed to step the NR selection
between F1, F2, F3, etc. The RIT control is not used for anything while
the NR display is engaged.
73,
Drew
AF2Z
On 01/14/19 12:42, Bill Frantz wrote:
The NR change I would like is "just" a UI change. If I could temporarily
The NR change I would like is "just" a UI change. If I could
temporarily set up two knobs to change the two parameters it
would be a lot easier to play with the settings and find the
best combo. Having one knob means having to remember how well a
setting several twists away works; much harder.
I don't use the RTC for much, so I let it get way off NIST time.
What I most worry about is the battery running down and leaking
inside the K3. I suppose on the rare times I run the utility, I
should check to see if the clock is still running. If it runs
out of juice, the replace the battery.
I got this unbalanced common-mode choke from Amateur Radio Supplies. It
completely clobbered all of the "bite" I was getting in the shack, and is
keeping stray RF out of my bench computer. I got it when I was having
trouble with the keyboard I had connected to my PX3 -- when I transmitted
CW or
Vic,
The simple answer is that the common mode chokes available to hams
are of the unbalanced type. That means they are designed to be
unbalanced in to unbalanced out. Some companies make baluns that are
both current baluns that act for choking common mode currents and
transform a
http://k9yc.com/ChokesTLData.pdf gets a 404 not found error. I'd be
interested in seeing the document. Bob - W3DK
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
elecraft-requ...@mailman.qth.net
Sent: Monday, January 14,
Given the increased noise levels most hams face, I emailed Wayne to ask if
improved noise reduction & noise blanking were on their project list. He said
no. So, any improvements are apparently a long way off.
John
WA1EAZ
> On Jan 14, 2019, at 7:29 AM, Wes Stewart wrote:
>
> Lyle is retired
It is one hell of a nice read Jim, THANK YOU for publishing it.
73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
Award Manager, 30MDG Grid Contest
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL OOC for Oregon
On 1/13/19 9:24 PM, Jim Brown wrote:
I'm not going to go beyond this on the
Lyle is retired here in Tucson.
Wes N7WS
On 1/14/2019 3:00 AM, Bill W4ZV wrote:
David Gilbert wrote
Yes, I agree that the computation needs to be done in the frequency
domain with an FFT. I have no clue whether or not the K3 and K3s have
enough computational power to do so, but Lyle
I find the NB in the K3 is very versatile and can usually make a difference.
I rarely use the NR, never found it much use, that goes for other rigs
too, might just be me.
The APF was a great addition to the K3 firmware but I feel it could
stand some enhancement, adjustable BW would be very
On 1/13/19 11:24 PM, Jim Brown wrote:
>> The instrument used to measure this is quite simple.
> I'd be very interested in how you're measuring the current at the
> antenna feedpoint. :) That is NOT so simple.
The common mode current can be measured 1/2 wavelength from the
feedpoint. Here is an
Hello all, Hello Wayne,
following Mike KF6KXG suggestion, i would like to have a more intuitive
Noise Reduction (NR).
I used several last Icom or Yaesu model and their NR are more intuitive
and easy to use, without loose efficiency and without ruin the signal
audio and strenght.
Especially
Good idea
Sent from my iPhone
...nr4c. bill
> On Jan 14, 2019, at 3:54 AM, Petr, OK1RP/M0SIS wrote:
>
> Hi,
>
> finally it means that RTC lithium cell low voltage status is not alerted at
> all, right?
> So I should check it or better replace it after 11yrs, right? :)
>
>
>
>
>
>
I have a nice K2/100, it is setup as the twins with the amp and tuner in
the EC2 case.It is packed and ready to go,who ever buys it.
This is for sale as is with no returns, because of parts swapping.
$1050 I will pay for shipping.
Derek/KD3GZ
David Gilbert wrote
> Yes, I agree that the computation needs to be done in the frequency
> domain with an FFT. I have no clue whether or not the K3 and K3s have
> enough computational power to do so, but Lyle (Elecraft's DSP guru)
> briefly discussed this idea with me when I suggested it
Hi,
finally it means that RTC lithium cell low voltage status is not alerted at
all, right?
So I should check it or better replace it after 11yrs, right? :)
-
73 - Petr, OK1RP
"Apple & Elecraft freak"
B:http://ok1rp.blogspot.com
G+:http://goo.gl/w3u2s9
G+: http://goo.gl/gP99xq
--
Sent
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