from.
73, Val LZ1VB
- Цитат от Tom Doligalski via Elecraft
(elecraft@mailman.qth.net), на 04.01.2021 в 19:57 - Over the last
several weeks I’ve been having problems with the arc fault detector
(AFCI) in my fusebox.This does not control the power to the shack, but to
our garage door
Charlie, how this could work after there is no way the TX Inh inputs
to be pulled down?
73, Val LZ1VB
Roger:
Look at:
http://www.kkn.net/~n6tv/SimpleElecraftK3SO2RLockoutCircuit.pdf
I belive it's different than the one you described in your email.
I've
used this one successfully.
73
Roger,
Check ACOM 2S1.
73, Val LZ1VB
Hi All
I don't like re-inventing the wheel, so I'm looking for a design to
copy!
I'm looking for a circuit to interlock two K3 so they cannot
transmit simultaneously. I am aware of the simple connection cross
linking the PTT out and Inbibit input
Tom,
I am still on K3, but there should be no difference. ACOM 2000A needs
a Y cable too. Or instead of two Y cables make a X cable :). If you
have alredy tried this but not satisfied, just write me directly.
73, Val LZ1VB
I have two K3S connected to two Acom 200A. I am using the USB
Wayne,
Look for Z1 Manual on the Jack's site. The circuit diagram can be
found there.
Some time ago I breadboard this amplifier using junk box parts.
73, Val LZ1VB
I fail to find a parts list or circuit diagram on
http://www.cliftonlaboratories.com.
Does someone else see it? I don't
. That mirrors the pins as you can see on the K3 cable diagram
(Fig. 7-6).
Should you have more questions, please do not hesitate to write to
a...@acom-bg.com
73, Val LZ1VB
I have tried the various configurations shown in the Acom 2000A
manual to
connect the CAT input on the Acom to the RS232
Hi Mike,
I think that actually this is a great feature. The fancy operation
brings a healthy laugh to the DXers and drives the QRMers crazy as
there is no single TX frequency :).
73, Val LZ1VB
Hi,
Occasionally DXpeds lose their split setting which causes chaos when
running a pile
Bill,
According to your description, AUTOINF=NOR is the right setting in
both cases. Either the ACOM 2000A, or PC will poll the K3, hence no
need AUTOINF to be changed.
73, Val LZ1VB
I think I have figured out the connection issues when using a K3 with
an ACOM 2000A. I wrote up
is running, or to the
ACOM when no PC application polls.
73, Val LZ1VB
My cable is store bought, and it is the kind in figure 7.2, i.e.
without the TXD wire. I ohmed it to be sure. Actually, it is a cable
with a separate Y adaptor, but the effective wiring is the same as
figure 7.2
Sorry to disappoint the crowd here, but this time the World Champions
used Icoms.
73, Val LZ1VB
3. But thirdly, it seems that congratulations to Elecraft are in
order! We
do know they used K3s in Moscow last time (WRTC 2010), and earned
the top US team score; #1 in QSOs and #3 overall
7800
Which Icoms?
73,
Scott, N9AA
On 7/15/14, 1:57 PM, Val wrote:
Sorry to disappoint the crowd here, but this time the World
Champions
used Icoms.
73, Val LZ1VB
3. But thirdly, it seems that congratulations to Elecraft are in
order! We
do know they used K3s in Moscow last time
David,
There should be no attenuation if you keep both transceivers on a
same band.
By the way, there is a device used mostly by the contesters who
need to share an amplifier: http://www.acom-bg.com/xvcr.html
Using it with K3: http://www.kotarov.com/projects/k3-and-acom-2s1
73, Val LZ1VB
Kenwood should do the job.
73, Val LZ1VB
Can I connect my KX3 to the SteppIR controller? My controller is old
and supports Yaesu, ICOM and Kenwood only.
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of course), you may
find it more expensive than 3 pcs ACOM 2000A and the due combiner.
73, Val LZ1VB
My thought is that connecting two standalone amplifiers, each with
its own protective circuits, bias supplies, etc. with a combiner is
kludgy and likely to lead to problems.
Now
I wish we had there the CW speed too. There is a place for both values.
73, Val LZ1VB
Hello Elecraft,
Can the K3 Sub Receiver display (without the 2nd receiver installed) be
programmed to show the power setting as a selectable continuous display as
opposed to the power setting flashing when
Igor,
Take a look at ACOM 2S1. This little device is intended to allow two
transceivers to share one antenna (amplifier). Its logic locks out them by
TX inhibit.
73, Val LZ1VB
Don,
I do not think so. Inhibit signal does not disable PTT. Therefore when the
first station starts to TX
May be you are right Rick. The amplifiers there are not QSK capable and the
transceivers should be adjusted accordingly.
73, Val LZ1VB
Ok thanks guys. Must just be my ears.
To me it sounded like a rig on QSK with relays that were too slow
Stewart,
You can make a toggleable macros by SWT/SWH commands that emulate
pressing/holding the switches that normally control the given function. I
don't know what is DIGOUT1 and how is it turned on and off normally, but
TUNE is toggled by SWH16.
73, Val LZ1VB
I need some help from those
Phil,
I modified a 300W ATX PS from my junk box 5 years ago and using it
every day since with my K2 and K3. A lot of dxing and contests, not
a single issue.
The quality of the PC PS differs too much, but a good many of them
are not worse than the other swithers.
73, Val LZ1VB
A shot
Of course it dislikes the spike as every other tube or transistor does.
However some of the GU74B amplifiers have sophisticated protection circuits
that every spike trips , while an unprotected tube amplifier wouldn't notice
it.
73, Val LZ1VB
David, what are you saying? Do the GU74bs
No Ray, there isn't and the last attempt for CW net was a decade ago.
73 Val LZ1VB
Just wondering if there is a UK or European CW or SSB net for K2 or K3
owners if so what frequency does it operate on what day of the week?
73
Ray G3XLG
Oh, there are a lot of them - the native CT17, Rigexperts, Rigblasters
etc...
73, Val LZ1VB
I know of no other products currently on the market capable of
translating serial controls in one format to the CI-V transceive
necessary to control the PW-1.
... Joe, W4TV
On 3/22/2012 12
Connecting of Alpha KEY OUT to K3 TX INHIBIT is a good practice too. A
pull-down or pull-up resistor might be needed.
73, Val LZ1VB
On Sat, Jan 28, 2012 at 10:34 AM, Robert Fanfant rfanf...@hotmail.com
wrote:
My Alpha 86 has three RCA jacks:1) Relay2) ALC3) Key out What connections
And one more question:
After KXUSB terminates in a 3.5mm plug, there is no place for DTR line. Then
how is arranged the CW keying by a computer?
73, Val LZ1VB
The KX3 will ship with the KXUSB interface cable (USB) unless the buyer
specifies the KXSER (RS232) cable instead.
It has been
Well, this means that KXUSB is unusable for CW operation. We will need
full USB adapter, carrying DTR line like KUSB, DB9 socket, than a
transistor key and two 3.5mm plugs - one for the KEY jack and one for the
COM port. How spoiled are we by K3, hi.
73, Val LZ1VB
I would think that whatever
I got them on 20m and 17m with K3/10 and vertical. Not pure 5 W really, but
this is one of the hardest locations for QSO from here.
73, Val LZ1VB
If it was too easy, try 5 W next time :)
73,
Wayne
N6KR
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there are IC7000,
hi.
And this is T32C DX expedition, which container (full with Yaesu gear) is
stuck somewhere in the middle of Pacific. Anyway, they must start today with
FT450s, hi.
GL working both expeditions!
73 Val LZ1VB
The 3D2R expedition has been on for the past couple of days with
basically
update is not deadly for K3. (At least for SN 516, switched off only by the
PS since March 2008)
73 Val LZ1VB
I understand the K3 don't like it when shutdown other than the front
panel. Maybe a battery between the power
suppley and the K3?(or is there a better way
also
have embedded computers and they usually don't fear of a PS interruption
too.
73 Val LZ1VB
I would not have thought that this is recommended, Val. The K3 is a
'computer'. Do you also switch your computer off at the supply without
closing Windows down?
73 de David G4DMP
In a recent
Doug,
In the config menu change SPLT SV to YES. The split will be memorized per
band. Vy useful when chasing DXpedition
73 Val LZ1VB
- Original Message -
From: Doug Turnbull turnb...@net1.ie
To: elecraft@mailman.qth.net
Sent: Sunday, July 31, 2011 1:39 PM
Subject: [Elecraft] [K3
Rick,
This usually happens when the cable between the computer and K3 gets some
HF. Have you tried some turns on a ferrite ring or a clamp?
73 Val LZ1VB
My K3 (ser.no. 2994) has suddenly started behaving strangely: When
CW-keyed
by N1MM (and sometime also by Logger 32's CW-machine
May I suggest another macro:
SWT13;UPB5;SWT11;BW0100;SWT11;SWH13;
And it's toggleable - you turn the split on and off by tapping the same key.
73 Val LZ1VB
My preferred way of doing this is a macro:
SWT13;SWT13;FT1;UPB5;RT0;XT0;
I have this assigned to my PF1 key and when a station
Wayne,
It seems that something like FA(FA;+10) wouldn't work now, but do you
have plans to make possible SET(f(GET)) commands in the future?
73, Val LZ1VB
A macro to go up 100 kHz would be pretty long: UP7; repeated 20
times. Macros can have up to 120 characters, so this will easily
Poul-Erik,
I have here K3 PTT-KEY as OFF-DTR and N1MM as 38400, N,8,2, DTR-CW,
RTS-Always Off.
73 Val LZ1VB
What are the correct settings of the K3 and of N1MM for keying (CW) the K3
from N1MM?
Sorry if this has been answered in the past - if so pse just a link.
Poul-Erik, OZ4UN
Tom,
I am using SD contest logger, where 2 stop bits were set by default for K3.
That's why now I set N1MM on my second computer the same way. Actually
K3-N1MM connection works fine here with 1 or 2 stop bits set, no difference.
73 Val LZ1VB
Val -- That is good information, but why 38400/N
I'm looking for SoftRock RX but it is not available at KB9YIG. Do you have a
spare one? Or now, with P3 in your shack, maybe your Softrock will stay
unemployed? Why don't you give it in good hands, where it will be
appreciated very much.
73 Val LZ1VB
Dick,
Do you keep a wish list for future releases? I found that the CW memories
editor is too rough for me. The half space is not sufficient to make my
call sign to sound perfectly. Could you add quarter space, please.
73, Val LZ1VB
I'm dying to see it.
73 Val LZ1VB
Just found the june 2020 K3 shematic.
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Yes John, it's easy to replace. Even more, it's easy to test if the encoder
is the problem. By swapping the VFO A and VFO B encoders.
73 Val LZ1VB
Hi, Stan - I guess that explains why when the K3 was out at Elecraft, Dale
ran it thru 24 hours of temperature cycling. But that didn't
-
there is a place for 17 original keys. It could be mounted on the top and
secured to the top-front 2D fasteners. I would buy such an accesory. Or
similar side mounted key box with 3 x 7 = 21 keys.
73 Val LZ1VB
After ownning K3 from the beginning, my request would be
for an armchair version of K3
Yes Jim, If we have 21 programmable keys, we cold make 11 band keys, 5 mode
keys and 5 other macros. But I think not everybody needs all bands and
modes. That's why a narrower box with two columns of 7 keys = 14 key could
be produced too.
73 Val LZ1VB
These 21 - dedicated macro keys ??
73,d e
, who
need this.
73 Val LZ1VB
Would 33 buttons be enough?
Or maybe 24?
We use these in a museum to play back videos from a RS232
controlled server, and they are very rugged and easy to
program. You program them using the supplied software in
english, then when you press a button, the serial
not permanently, but on tapping the
speed control knob.
A shortcut from the wpm meter, already embeded in the text decoder, toward
the internal keyer would add some artificial intellect to K3, and would
contribute to more courtesy on the bands :).
73 Val LZ1VB
I second that. There are a lot of turning to bring the notch from 2000 Hz to
near my pitch of 390 Hz. I would suggest the manual notch to be parked just
outside of the used AF band. I.e. when the width is 200Hz and pitch is
400Hz, the notch may wait comfortably on 550Hz.
73 Val LZ1VB
Dean,
K3 is QRP compared to K2. 12W only!
73 Val LZ1VB
I presently have a K2 with 15 to 17 watts out. When I need QRO it runs my
AL-811H amp up to a few hundred watts so I have never needed the 100 watt
finals.
I am thinking that I will be able to do the same thing with the K3 as long
.
73 and Happy Holidays, Val LZ1VB
Did I miss something? When was the price for the K3DSPUPGD raised?
A couple of days ago it was still $69,95 and today I saw it is $89,95.
Too bad there was no announcement about. I would have placed an order
before.
For one who think stop whining please
filter, tracking the width of the IF DSP filter?
73 Val LZ1VB
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, there are some switches ( like REV, RX ANT, ATU TUNE,
ANT...) that I never use, because of my opperation habbits, or because I
don't have the accessories installed. How about making them programmable
too?
73 Val LZ1VB
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supply.
Dick- K9OM
We already have heard the same words 6-7 years ago. However the
discussed rig was K2 and the dreamed one - K3. Now we have K3
bigger than K2. I'm sure that there will be voices for K5 bigger than K4
too.
73, Val LZ1VB
For Sale in Europe QRP CW transceiver K2 SN 2745.
290 Euro plus shipping.
73 Val LZ1VB
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bands are only 90 dB below the signal.
That's why the real world experiences aren't such as expected from the lab
measurements figures.
73, Val LZ1VB
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Help
And the same for the CW speed. Every time I'm going to call somebody, I
touch the knob only to see if my speed match his speed.
73,
Val LZ1VB
Hi,
What's the chance of adding the RIT or XIT readout on the display in small
numbers next to the RIT or XIT oval?
Although you can see
Congratulations Mike,
How about swapping it for my K3 SN 516? I use to have K2 SN 2745, what a
match :)
73' Val LZ1VB
Built to the 100w stage. 2nd receiver will be installed in the morning.
The
2nd time around is much easier.
Mike W0MU
already on).
5. Disable TX on VFO A frequency until SPLIT is canceled (error trapping
for the A/B, REV and AB buttons).
6. Switch VFO B display to show VFO B frequency if it currently shows some
voltage, temperature, decoded text, etc.
73 Val, LZ1VB
and my TX
frq is up 1.
73 Val, LZ1VB
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.
Julian, the paddle generates only dots and dashes, so the decoding is
necessary anyway. But this is not a problem, after K3 has decoding
capability.
73 Val, LZ1VB
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Hi Lance,
Charles Harpole, K4VUD did the comparision few months ago and posted the
results here in two separate reports - CW and SSB. You could see them in
the archive circa Sep-Oct 2008.
73 Val LZ1VB
Hello! I have a friend who is thinking about getting a rig to use at a
portable/remote
wayne burdick wrote:
SPEAKER AMP: The mod kit includes a very low-resistance RF choke for
use at RFC47
73,
Wayne
N6KR
What is the value? / SM2EKM
Could this be homebrewed? Core, turns, wire? / LZ1VB
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if needed unlink VFO B
for better tuning.
73' Val LZ1VB
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overdriving
your ear drums.
I found that we can go down (even to 0) without risking the ears, if we set
high threshold (AGC THR up to 8). This allows us to crank down AF gain
control (9 o'clock here for 200 Hz BW).
73, Val LZ1VB
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it as a
main rig.
73 Val LZ1VB
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Steve, you missed :)
Krivovato actually means crooked
But the computer translation isn't much closer at all :)
Val LZ1VB
Looks like something krivovato: I'm going to take a wild guess
here, but I'm betting that krivovato means a radio that really
should be larger, with buttons for each
equalizer. With RX EQ you can add up to 16 dB to the desired audio
band, or to the whole AF range.
Val LZ1VB
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Ok settings gurus, What values of K3 AGC parameters will make the K3
most closely mimic the AGC in the K2?
- Keith N1AS -
- K3 711 -
Well, my choice is high threshold, steep slope and low AF gain!
AGC THR 8
AGC SLP 4
73' Val, LZ1VB
K3 516
K2 2745
Hi Mark,
RWM is very strong in EU on 9996 and 14996 kHz.
73, Val LZ1VB
K2 2745
K3 516
Hi all,
Received my K3 kit a couple of days back and will shortly get
round to start work on it. Looking through the manual at the reference
oscillator calibration method 2. It suggests using
From their site:
During the next days we plan a greater focus on Asia openings, which are
presently underrepresented on most bands.
You could send them an email request. Seems they have good connection with
the mainland.
73 and success
Val LZ1VB
Only 1 QSO - 20 m so far with K2/10 and vertical
What are the sizes of the big brown box and the smaller boxes inside?
Thanks 73
Val LZ1VB
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on
With K2 with 200 Hz filter pileups were processed much easier. The stations
stood as pins, you have only to turn the knob and pick them up.
The conclusion is: The expedition equipments sponsors must be changed :-)
Translated by
Val LZ1VB
K2 2745, K3
It's great that K2 can be made CW only. Could K3 be ordered with narrow CW
main filter instead of 2.7k?
Val LZ1VB
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of the The best top-band transceiver competition
on it's expensive stand.
73, Val LZ1VB
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Great entry project for homebrewers. 100W one tube amp:
http://www.xs4all.nl/~pa0fri/Lineairs/Frinear150/fri150eng.htm
73, Val LZ1VB
What are the easy ways of keeping one's K2 a base
QRP driver rig - and having a standalone amplifier
next to it on the table? Nothing power drastic
now on a grid
driven 4xEL509, delivering 400-500 watts. PA0FRI have a great web site for
the amp home brewers. See http://www.xs4all.nl/~pa0fri/Lineairs/Lineairs.htm
73, Val LZ1VB
The Linear Amp kits seem to need a fair amount of drive. I've been
idly thinking about a linear that would allow me
The amplification of the PA is limited by the low only in the USA. Hope
that there will be an overseas edition, who can be made happy by barefoot
K2.
73 Val LZ1VB
Hi Fred,
I fully appreciate the quality of Elecraft products. However, they still
need to have a marketable amplifier
. But very
often if you can hear the DX beacon at all, only the call and the first dash
are coming. That means, that in this moment you can make a QSO with 100, but
can't with 10
73, Val LZ1VB
How does one know your sig is QRP? Unless you send QRP with your
call (I never do).
Receiving QRP
There is no SM since June 28th. 4N5Y QTH is in Serbia. I was also
confused - N1MM logger didn't recognize YT6T as Montenegro ( I downloaded
the latest version just before the contest ). Don't worry, the score
calculated by your logging program doesnt matter, when you send CABRILLO
log.
73, Val
Hi all,
I am in need of several toroids T44-2 and T44-10 for the input band filters
of the PA am going to build.
If anybody who have used the services of the Toroid Guy is willing to part
with his unused K2 toroids, please contact me off the list.
Thanks in advance!
73 Val, LZ1VBK2 2745
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