Greetings.
I have barely used my K2 going on about two years now. It seemed to work
well when I first got it off the person who had assembled it. I got
occasional comments about good audio when operating on SSB. I then
started applying the mods to bring it in line with the post 3000 serial
Hi elecrafters,
I would like to have some advise about powering the k3 while I am portable.
can not be very heavy because what I realy like is to go out to the mountain
with a small backpack.
73 de Manolo EA7LL
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(why the OT label?)
For backpacking use, you might want to look into the K3's little
brothers, the KX1 and the K1.
Mark AD5SS
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Kevin,
It is normal to see a higher response touching a random, wire to C6
compared to touching the same wire to W6. The C6 location is a high
impedance point while the W6 and D6 locations are low impedance - the
capacitive dividers (C7,8 and C4,5) reduce the impedance.
The end of a random
Manolo,
Choose the largest 12 to 14 volt battery that you are willing to carry
along - if the sun is shining, you may want to extend the operating time
by adding a solar panel to the battery to keep the charge level up.
The K3 draws about 900 ma. on receive, and the current will be more when
I am looking for a source for good advice to set up a panadaper, software etc
for the K2. Best to get/build, how to set it up etc.
Thanks in advance for your help!
Dean
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Hello,
BH is shipping right now the CM500.
I did my order December 11th, today I received an email telling me that was
shipped.
73,
Jorge
CX6VM
-Mensaje original-
De: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] En nombre de w...@w5ov.com
Enviado el:
Just to further clarify, after lowering LO CUT to zero, the bottom two EQ
bands have activated!
Even so, it is indeed interesting that little energy exists at those low
frequencies - even in an AM broadcast signal.
This kind of EQ is a very powerful tool. I wish I had the free time to fully
Dean,
The plan for the P3 as I have heard it is to also support the K2 IF, and
I cannot recall if the LP-PAN is available with an IF input to match the
K2 IF. You would need a buffer amplifier added to your K2 to bring the
IF signal out. There is a version of Jack Smith's Z1 buffer
check here for softrocks.
http://www.kb9yig.com/
they are still in high demand so you may have to check daily to see
when more are added.
Matt
W8ESE
On Tue, Jan 12, 2010 at 9:12 AM, Don Wilhelm w3...@embarqmail.com wrote:
Dean,
The plan for the P3 as I have heard it is to also support the
Don and All,
Your last post raises a question in my mind--it probably has been discussed
before, and if so, I missed it. I must admit that the number of posts on
this reflector is often overwhelming, and I'm sure I get too quick with the
delete key.
Here's the question--I bought the 6 khz
Dave,
The 6 kHz filter is mandatory for AM and/or ESSB *transmit*.
For AM receive only, the 6 kHz IF bandpass reduces to a maximum AF
frequency of 3 kHz after de-modulation of both sidebands.
The 13 kHz FM filter can certainly be used for AM receive, and the K3
audio response can go as high as
I received notice this morning, Jan. 12, that BH shipped mine which I
ordered around Dec. 5 or so.
/Rick N6XI
On 1/10/10, Bob Naumann w...@w5ov.com wrote:
For some additional info, I placed an order with BH for these headsets on
December 4 and they are still on backorder.
Don't hold your
In my experience with this, the five watt calibration of the K3 was
incorrect. The gain required to set the fifty watt cal was then
incorrect. This can cause various problems, including burning out the
low power amp, and not getting 100 watts out when 50 is calibrated.
Note that a Bird wattmeter
You bring up the interesting question of configuration for the narrow
filter -- i.e., where do you set it to kick in? I opted for 1.9 kHz, you
opted for 2.1 kHz. I'm curious as to where others have configured the 1.8
kHz SSB filter to kick in -- and why.
Bill W5WVO
Does anyone know a good way to read the digests from this reflector. I do
not want to receive 50 emails a day to get 2 or 3 that are of interest to
me. The K3 digest is getting ignored here because of all the repeat
information I have to wade through.
There must be a better way.
-Robby
Hi Bill,
One reason for the 1.8 kHz roofing filter is the male voice. If you
set Fc to around 1 kHz and reduce the BW to 1.8 kHz, you get just
enough voice components in speech to leave it intelligible, but will
also eliminate almost every trace of signals to the sides. This is
excellent for
We're looking into this.
73,
Wayne
N6KR
On Jan 11, 2010, at 7:20 PM, je1...@a1club.net wrote:
Hi folks!
Thank you for suggestions.
In my previous post, I forgot to say that my K3 works without hi-temp
alarm after warming up (about 30min or so without transmit just
receiving
status).
Well it look like BH is receiving this week all the backup orders,I just
called and was informed my order from November will be shiped today.
AD4C
For a refined ham it is compulsory to own a k3
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Hector, AD4C
Check ur yahoo email
Phil K8MBY
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On Mon, 11 Jan 2010 20:05:10 -0700, Bill VanAlstyne W5WVO wrote:
The RFI is almost certainly common-mode and is being radiated by the AC
power cord -- and, by extension, the house AC wiring.
Yes, this is most common.
Your typical
store-bought AC line filter is a differential-mode device and
robby robertson wrote:
Does anyone know a good way to read the digests from this reflector. I do
not want to receive 50 emails a day to get 2 or 3 that are of interest to
me. The K3 digest is getting ignored here because of all the repeat
information I have to wade through.
There must
Good news! Do these come with a connector that will work with the K3,
or do they have to be rewired, etc.?
Dave, W8OV
On 1/12/2010 10:32 AM, Hector Padron wrote:
Well it look like BH is receiving this week all the backup orders,I just
called and was informed my order from November will be
Never mind. I looked them up.
W8OV
On 1/12/2010 12:01 PM, Dave, W8OV wrote:
Good news! Do these come with a connector that will work with the K3,
or do they have to be rewired, etc.?
Dave, W8OV
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My Yamaha CM500 came with a 3.5mm stereo plugs for microphone and headphone
audio, which plug right into a computer sound card or the back panel
connectors of my K3.
Yamaha also provided a 1/4 screw-on adapter that slips over the 3.5mm stereo
plug.
There was also a small bias battery case for a
Back in stock, Ordered mine today
http://www.inrad.net/product.php?productid=299cat=140page=1
WZ0O wrote:
Good news from Inrad. They are cooking up another batch of the 1,5khz SSB
filters. So those that were looking it won't be long. They said they would
email me when there ready and I
I am trying to verify the output at the IF OUT jack on the back of
the K3. I have it connected to my K2 with the VFO set for 8215.00 and I see
or hear no signal at all. Shouldn't I see the output from the K3? Is the
signal that low that I won't even get a blip on the K2 receiver? Am I
A resource for those who are undecided as to whether to build their K3 or
have it factory assembled would be a viewing of N5NA's 7 minute YouTube
video.
http://www.youtube.com/watch?v=DfUMZcwtIyw
It's a masterpiece of time lapse photography. And very enjoyable as well.
73,
Mike K2MK
--
View
You should hear whatever signals the K3 is tuned to. I'm assuming you
are connected to the IF OUT jack of the KXV3 or KXV3A.
If you haven't done the IF output mod:
http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf
then the signal level will be lower than at the K3 antenna
I don't think you'll hear much of anything on a K2 at 8.215 MHz.
That's well outside the 40m passband. The K2 does not have general
coverage RX.
73
--
Joe KB8AP
On Jan 12, 2010, at 1:05 PM, sr...@swbell.net wrote:
I am trying to verify the output at the IF OUT jack on the back of
Stan,
The K2 cannot receive that frequency - the dial may say so, but the
VFO/PLL has maxed out at about 7400 kHz (if you are tuning from 40
meters) and although the dial continues to increment, the actual
frequency will not go any higher. Even if it did, the bandpass filters
would probably
I thought about that and I guess that must be the case.
Stan Rife
W5EWA
-Original Message-
From: Joe Planisky [mailto:jp...@jeffnet.org]
Sent: Tuesday, January 12, 2010 3:57 PM
To: sr...@swbell.net
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] IF output
I don't
My K2 will tune to 8125 and I can hear the IF signal of the K3. It is weak,
but audible. I have the IF mod installed in my K3
AJ9Q, Burl
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: sr...@swbell.net
Cc: elecraft@mailman.qth.net
Sent: Tue, 12 Jan 2010 16:06:55 -0600
Hi all
During the Christmas holidays I finally decided to assemble my XV144, and
XV432 too. Much to my surprise the XV144 design does not come with an LO
adjustment possibility. This is relevant for me as I do not use it with an
Elecraft or other display trick capable radio.
Has anyone
If you have an oscilloscope you can connect it and see the output. I have a
K3 which has the modified IF with higher output. I have a 5 MHz (-3 dB)
oscilloscope in my shack for monitoring. Even at 8.215 MHz it indicates up
to +/- 50 mV in the 40 m band (no ATT, no PRE). In other bands it is
Don, can I use the SUB receiver in the K3 to do that? I have the KBPF3 in the
sub receiver.
Stan Rife
W5EWA
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: sr...@swbell.net
Cc: elecraft@mailman.qth.net
Sent: Tue, 12 Jan 2010 16:06:55 -0600 (CST)
Subject: Re:
I wonder if I could do the same with my HP 3403C True RMS meter?
Stan Rife
W5EWA
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Sverre Holm (LA3ZA)
Sent: Tuesday, January 12, 2010 4:18 PM
To:
Burl,
Some will do that, but most will not - it all depends on the exact value
of the capacitors in the VFO Range Select circuit - a few pF one way or
another makes a big difference. BTW, that is what setting the L30
adjustment to get the voltage at the left end of R30 is all about.
Yes, the
Stan,
I should think you can - although you will have to be careful to listen
to the correct audio channel - it would be wierd to hear the real K3
received signal in one ear and the sub receiving the IF output signal in
the other.
73,
Don W3FPR
sr...@swbell.net wrote:
Don, can I use the SUB
Hi
Has anyone done daisy chaining of the Elecraft transverters without using an
Elecraft radio?
I acknowledge that the AuxBus is used and intelligent communication is
needed from an additional microcontroller.
Initially I thought, without taking a closer look at the diagram, that it
was
I was expecting to hear a carrier, but after I thought about it that
can't be the case.
With the IF connected to the Subreceiver I can tune around either
side of 8215 and hear QSO's. I have to have the Preamp on by I can hear
them. Would that be considered adequate? I have done
Bo,
You certainly are welcome to try pulling the crystal frequency with a
small parallel or series capacitor, but the stability may suffer - I
have not tried it, this is a theoretical guess.
Remember the crystal in all except the XV50 are overtone crystals - the
XV50 uses a fundamental mode
You can also try borrowing an Icom Pro series (or presumably their larger
radios as well), and hook the if out to the antenna input on the Pro, which
will then act as a bandscope for the K3 when tuned to 8215 kHz.. I do this
at P49Y (an idea from W0YK) and it works very well.
73, andy, ae6y
It's working. I tuned around and got some really loud signals even
without the preamp on. So I can move forward now trying to get the LP-Pan
working.
Thanks everyone,
Stan Rife
W5EWA
-Original Message-
From: elecraft-boun...@mailman.qth.net
Bo,
The XV transverters can be daisy-chained for the key line and the IF
coax cables - see the diagram on page 12 of the Owner's manual.
I would think it would be easier to select the proper transverter by
merely pressing the power on/off switch of the one you want rather than
trying to
Hello:
I want use a FC-4 headset with the k3.
What settings are you using?
MIC.SEL Menu? Do i have to select H or L?
and Bias?
I think it is H and Bias Off.
Is ok?
Thank`s a lot.
--
Rubén Navarro Huedo - EA5BZ
http://www.palotes.com
I've noticed that I am unable to operate the NR NTCH independantly
on the main sub receiver. If I turn either control on, it's on for both
receivers. Can't turn it on for one receiver and have it off for the other
like you can for the Preamp the NB. I installed the 2nd DSP for the Sub
I am a new owner of a K3 and still learning...
Today, for some strange reason my sidetone in CW on the 20 meter band seems to
be producing two notes and not a single pure note. That is, it sounds more
like the button tones of a push button phone then a pure sinewave tone.
This is only 20
Phil,
There is no normal and reasonable explanation for that, the sidetone
generation is not band dependent.
Is there a possibility that you have an RF Feedback problem on 20 meters
- that is the only thing I can think of.
73,
Don W3FPR
Phil Hystad wrote:
I am a new owner of a K3 and still
Don,
No RF feedback -- 20 meters is my most perfect antenna (40 meters is my worst).
However, I plugged the headphones in again and this time the tone was clear and
normal. I unplugged the headphones and again now the tone is clear and normal.
Is there a possibility that such behavior of
I have need to place a remote 120 watt rf power measuring device out at the
antenna site some 450 feet from the shack. I have
RS-232 wireless connectivity at the remote location and would like to use the
W1 to provide the measurement.
Does anyone have experience using the W1 with the GUI
Ruben,
MIC.SEL is FP.L (front panel), rP.L (rear panel) and LINE IN. This is for
selecting where you plugged the microphone in.
The HC-4 DOES NOT use Bias.
73,
Tom N2CU
K3 #3582
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I almost hate to bring this up since my flame suit is out at the cleaners but
before I sell my Ten-Tec 715 RF Speech Processor that is left over from my
previous radio I am wondering if anyone has done a comparison between it and
the built in RF processor on the K3?
I have mine wired up for
On Tue, 2010-01-12 at 17:05 -0800, K6LE wrote:
I almost hate to bring this up since my flame suit is out at the
cleaners but before I sell my Ten-Tec 715 RF Speech Processor that is
left over from my previous radio I am wondering if anyone has done a
comparison between it and the built in RF
On Tue, 12 Jan 2010 17:05:05 -0800, K6LE wrote:
I am hoping there is no advantage
I haven't tried it, nor have I seen anything from anyone who has.
BUT -- the speech processing in the K3 is VERY good and VERY
flexible, so it's hard to imagine anything you could add outboard
that could improve
I am hoping there is no advantage so I can rid my desk of one more little
black box. The one thing that I can see on it that would be nice is the
ability to shift the passband.
In the case of the K3, the Tx EQ can be used to tailor the ultimate
sound, and the MON fuinction lets you hear
What is the best way to solder X7-X11 crystals? The instructions say to
solder two ground leads on the side. The ground leads on the left are
between the crystal and the resistor packs.
I think I should solder the ground leads onto the crystals before
soldering the leads onto the crystal case
Conway,
Use a hot soldering iron - 800 deg F - to heat the crystal cases
quickly. Use a flat bladed screwdriver to form the ground leads up
against the crystal case. Then apply the soldering iron (out a bit of
solder on the iron tip to aid heat transfer). Hold the solder on the
crystal can
Thanks much! I just bought 2.
~Brett(KC7OTG)
On Tue, 2010-01-12 at 11:44 -0800, Jim Balls - M0CKE wrote:
Back in stock, Ordered mine today
http://www.inrad.net/product.php?productid=299cat=140page=1
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Thank you Don, and Tom, for your replies.
Don Wilhelm wrote:
It is normal to see a higher response touching a random, wire to C6
compared to touching the same wire to W6. The C6 location is a high
impedance point while the W6 and D6 locations are low impedance - the
capacitive dividers
125.95 + shipping new. But I'd like to get $100 shipped.
Any takers? Please reply directly so that I don't miss it.
Thanks much gentlemen.
~Brett (KC7OTG)
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Don,
The issue is that the ground leads on the left side of the case is between
a resistor pack and the crystal case. There isn't the room to solder the
ground lead after soldering the crystal in place.
Should I solder the ground leads onto the case BEFORE I solder the crystal
onto the PC
Thanks for the suggestions guys. I have come to the conclusion that the
audio is probably where it should be and that there is nothing amiss within
the audio circuitry. I just installed the Ksb2 today and have that to play
with. Listening with the ssb filters does make a fair difference in
Conway,
There is space to solder them. Solder at about the height of the top of
the RPaks, and clip the leads off just above that point so the KSB2
option will fit. Hole the soldering iron tip so that is lots of contact
with the crystal case to maximize the heat transfer.
The solder does
Garry,
To get the best filter alignment (both SSB and CW), use Spectrogram.
Take a look at the K2 Dial Calibration article on my website
www.w3fpr.com as well as the information provided by Tom Hammond on
aligning the K2 filters using Spectrogram at both www.n0ss.net and the
Elecraft
Hi Bill,
Just do a test, it is so easy to modify with the Elecraft utility.
In my severe environment, I've noticed a slight difference at 2.1 when using
the 2.8 or the 1.8, so I decided to use the 2.1 with the 1.8 it's more sharp
but it is my own pereception and others can have different feeling
Bill,
Where you set the kick-in point is largely up to your ears. The slope
on the crystal filter is more gentle than the steep sided DSP filters -
as a result, the crystal filter actual width will vary depending on
whether you refer to the -3 dB point, or the -6 dB points or even the
-10 dB
--- On Tue, 1/12/10, Jim Brown j...@audiosystemsgroup.com wrote:
All of which is why we've not heard much about folks trying RF
speech processing. :)
73,
Jim K9YC
I built one years ago, but personally, I'm partial to split-band processing
:-)
So were the Kenwood engineers that designed
Yep! I got an email saying mine had been shipped also. Guess the ship
finally came in!
Dave W7AQK
- Original Message -
From: Jorge Diez - CX6VM cx6vm.jo...@adinet.com.uy
To: 'Elecraft List' elecraft@mailman.qth.net
Sent: Tuesday, January 12, 2010 6:57 AM
Subject: Re: [Elecraft]
Anyone have any info on this?
I've noticed that I am unable to operate the NR NTCH independantly
on the main sub receiver. If I turn either control on, it's on for both
receivers. Can't turn it on for one receiver and have it off for the other
like you can for the Preamp the
On Tue, 12 Jan 2010 21:16:15 -0800 (PST), Wes Stewart wrote:
I built one years ago, but personally, I'm partial to split-band
processing :-)
That's the sort of sophisticated broadcast stuff I was referring
to. Not cheap, makes rock and roll radio stations LOUD! The Aphex
Dominator is a
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