Hi Eric
Do you have any transmitter IMD numbers yet?
Craig
VK3HE
--- Eric Swartz - WA6HHQ, Elecraft
[EMAIL PROTECTED] wrote:
Hi Bill,
The reference on-channel signal for past ARRL BDR
testing has typically
been set between -110 and -80 dBm, well above the
MDS. te interfering
signal
Thank you Chris, from Amazon.co.uk :
http://www.amazon.co.uk/Grip-Liner-Multi-Purpose-150cm-30cm/dp/B000V1QPY8/re
f=sr_1_23/026-5812468-6916424?ie=UTF8s=home-gardenqid=1190361451sr=1-23
(Grip Liner in Home Garden)
On 20/9/07 18:36, Chris Kantarjiev [EMAIL PROTECTED] sent:
Anyone in the UK
wayne burdick wrote:
We turned all of the drawings in the quick-start guide into JPEGs to
JPEG and drawing generally don't go together, and, in spite of a few
gradients in this case, I think it is true here.
Moreover, the actual PDF file has the equivalent of PNG's (FlateDecode)
embedded.
They sell at Wal-Mart, for use in RV's to keep things from sliding
around. Tones of uses around the house. I had one under my HexKey
until a recent trip. Now will have to track down that roll again and
get another piece
David Wilburn
[EMAIL PROTECTED]
K4DGW
K2 #5982
FP#-1751
[EMAIL
Hello again,
thanks for Phase noise data and discussion.
What I am now looking for are some other informations important for
using K3 as I/F for serious VHF/UHF/SHF contesting/DXing.
First question is about display readout in transvertor mode - is there
possible some offset - for example
On 9/21/07, Bill Tippett [EMAIL PROTECTED] wrote:
Not to worry...I'm going to set up a company to sell phase noise
offsets to non-K3 users. :-)
Any discounts being offered to those of us who live in the first hop zone of
Eu 40m BC stations, and who use 7130 - 7200 kHz?
Number of stations
Hallo,
Second question - maybe more general - is about TX possibilities outside
standard HAM Bands. For example if my 2m transvertor is built for 26MHz
(26MHz/144MHz instead of stadard 28/144).
I've also asked, a long time ago, about using non-standard IFs for
transverters with the K3; my
I read the new K3 Quickstart Guide and noticed that with QSK button, I believe
that you can only select SEMI or FULL, but no OFF. Why would I want an OFF
function? I got in the habit of switching the breakin on my radio to OFF when
it is unattended for a couple of reasons. One, I usually
Hi Everyone,
When I could not get the VCO to lock despite changing the number of
turns on the red winding of T5, I got discouraged, and left the assembly
of my K2 in abeyance for a couple of years. However, recently I resumed
work on it.
I started checking voltages and found that line 4V
Tree wrote:
http://www.kkn.net/~tree/160/3b7cQSO.mp3
MP3 is probably not a good choice for critical evaluation of the audio
of a DSP based system, as it involves heavy additional DSP to produce
it. In particular, MP3 works by limiting close in dynamic range
(because the ear cannot hear
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Charles Harpole
Elecraft designers had K2-its thinking they were mostly evolving a
K2 Big mistake as I said in an earler message The K3 has jumped
Elecraft into the areana of the ORION 2,
Hi Everyone,
Success at last!!
I could not wait until tomorrow to adjust T5. I checked everything in
the advice received from Gary Surrency, removed the 17th turn on the red
winding of T5, and then found the locking voltage could be adjusted by
L30 at 4.000 MHz. I have noted the voltage at
Exactly. Human factor=Flashy knobs. How else could you impress
a shack visitor if your radio had precious few knobs? Big seller
for off shore rigs..panel full of knobs the majority of which one
never touches after that first day when the radio arrived and there
was lots to play with.
FINALLY, something negative about the K3. Sounds odd, but I'm glad to
hear it. My fear is that this rig will be so good and so desirable that
demand will far outstrip supply for some time leading to shortages (I
won't be able to get one) and the possibility of lower quality due to
growing pains
In many rigs the VOX control will perform the OFF function you're looking
for. With VOX off you'll need to push a Transmit button or supply an
external PTT signal to activate the transmitter. I haven't read the manual
yet but I bet the K3 works the same way.
OFF is a very good idea when you're
Ahoj Lexa,
I do not believe that there is many such requests for having ...
I agree with you that most standard rigs will not go above 30MHz and often do
better on 14MHz or 21MHz than they do on 28MHz. I would hope that the K3 does
show major differences in its performance from band to band. I
Being relatively new and not having a rig with two receivers, please forgive
stupid question:
Once I have my K3 with the KRX3 - working split, listening on the Rx freq in
1 ear and the Tx in the other should be a breeze - right?
And to ask 2 questions in 1 here
If 3B7C is working on 14.150
In many rigs the VOX control will perform the OFF function
you're looking for. With VOX off you'll need to push a
Transmit button or supply an external PTT signal to activate
the transmitter. I haven't read the manual yet but I bet the
K3 works the same way.
The K3 QSK button has two
I guess hams in general are impressed by a lot of knobs and buttons and
lights. I think that if we want to utilize any radio the best way possible
we need to forget some of our biases and try to adapt to the features of the
radio. This is why many hams derive so much pleasure out of some well
Hello Craig,
For LF work I am using a Wandel Goltermann selective level meter.
The tuning knob measures a meagre 22 mm / 0.86 inch.
Nevertheless this has never bothered me as the tuning rate adjusts itself to
the tuning speed.
The tuning speed can be set to a step of either 1 Hz / 100 Hz.
Can anyone comment on how robust the internal ATU for the K3 is? Is one
better off with an external ATU?
I'm not sure what you mean by robust. The KAT3 internal ATU handles the
full power of the K3 and matches a wide range of load impedances. It
adds little to the weight of the radio, and
Well...you can set it for full QSK and plug in a footswitch.
Then the footswitch will switch the K3 into transmit. Of
course, hitting the key without pressing the switch will
still cause it to transmit, but you
*can* use the footswitch (or PTT output of a computer logging
program).
This
Having never touched one, I'd agree that a 2.5 VFO knob would have been
a better choice than 1.5.
The Main VFO knob is 1.9 (4.8 cm) in diameter, not 1.5 (3.8 cm).
I find it every bit as comfortable to use as the VFO knobs on my other
base station targeted rigs.
73,
Lyle KK7P
This was an issue with the early Orion also. As I understand it, PTT in CW was
eventually implemented on the Orion.
Some of the contesting software will raise PTT and delay a user specified time
before keying to let the T/R switching settle. Also, on all the YaeCOMWood
rigs I have used,
Ed Muns wrote:
Well...you can set it for full QSK and plug in a footswitch.
Then the footswitch will switch the K3 into transmit. Of
course, hitting the key without pressing the switch will
still cause it to transmit, but you
*can* use the footswitch (or PTT output of a computer logging
Bill Coleman N2BC wrote:
This was an issue with the early Orion also. As I understand it, PTT
in CW was eventually implemented on the Orion.
Some of the contesting software will raise PTT and delay a user
specified time before keying to let the T/R switching settle. Also,
on all the YaeCOMWood
In both contesting and DX'ing, whether CW or 'phone ... IMO ... a
footswitch is the ONLY way to go. The K3 DOES have this capability,
doesn't it?
73! Ken Kopp - K0PP
[EMAIL PROTECTED]
or
[EMAIL PROTECTED]
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Post to:
On Fri, Sep 21, 2007 at 04:31:46PM -, Ken Kopp wrote:
In both contesting and DX'ing, whether CW or 'phone ... IMO ... a
footswitch is the ONLY way to go. The K3 DOES have this capability,
doesn't it?
Yes. I use it that way all of the time.
There is a phono jack input for PTT and a
YES
On 21/9/07 17:31, Ken Kopp [EMAIL PROTECTED] sent:
In both contesting and DX'ing, whether CW or 'phone ... IMO ... a
footswitch is the ONLY way to go. The K3 DOES have this capability,
doesn't it?
73! Ken Kopp - K0PP
[EMAIL PROTECTED]
or
[EMAIL PROTECTED]
--
Don't look forward
Vic,
Other than those who just like to use a footswitch, CW PTT function
(inhibiting the onset of RF) is a requirement with many VHF/UHF
stations, and is used as the transceiver steering mechanism for some
SO2R stations. I created a CW PTT circuit to add that capability to the
K2. I
Don Wilhelm wrote:
Vic,
Other than those who just like to use a footswitch, CW PTT function
(inhibiting the onset of RF) is a requirement with many VHF/UHF
stations, and is used as the transceiver steering mechanism for some
SO2R stations. I created a CW PTT circuit to add that capability
No, QSK must be off for the paddle to not be live. The
PTT/Footswitch works fine with QSK on. I just tried it.
Why isn't this useful?
Because you cannot control transmit with PTT/footswitch. Hitting the paddle
puts the rig into transmit. You cannot gate (prohibit) transmit with
Let us be clear. There are two questions in this discussion.
#1. Can you use external PTT to put the rig in CW transmit mode, bypassing
both the full and semi QSK? This has been resoundly answered Yes!
#2. Can you arrange for the CW key to be disabled when the foot switch is
NOT pressed? I don't
My current understanding is that if QSK is set to OFF, the paddles do
*not* initiate transmit - the footswitch can start transmit
and then the paddles will function. If it does not work that
way, please clarify how it does work.
No. There are two states for CW on the K3:
1. QSK.
2.
I've only done footswitch PTT on phone. Interesting idea to do it on
CW. I like the paddle disable concept.
So if the footswitch controlled a relay that was inserted between the
paddles and the rig, then you could use the footswitch to disable and
enable the paddles. The actual TR switching
On Fri, Sep 21, 2007 at 12:58:52PM -0400, Don Wilhelm wrote:
Other than those who just like to use a footswitch, CW PTT function
(inhibiting the onset of RF) is a requirement with many VHF/UHF
stations, and is used as the transceiver steering mechanism for some
SO2R stations. I created a
Charles said:
Elecraft designers had K2-its thinking they were mostly evolving a
K2 Big mistake as I said in an earler message
This is incorrect. The K3 designers had a clean sheet of paper. As I said
in my NCJ article,
Not at all an upgraded K2, this is an entirely new radio
I've been studying the block diagram of the K3,
and have a question about the 100w PA block.
There is a bypass relay shown in in the PA I/O
block which would provide the receive path.
Is this really a relay or some bypass circuit?
I wouldn't be happy with a relay flapping away, trying
to follow
N6TR:
This is an important point that I should have made before. We need an option
to ignore any input on the paddle input (or CW input) unless PTT is asserted.
Amen! Rather than using a Spot button, I send
a few dashes from my key to hear my sidetone when zero
beating someone. Less
While in the CW Mode here is how I would like the K3 to operate:
1. Change the firmware to add a 3rd state (OFF) to the QSK and SEMI-BREAK-IN
CW modes. When in the OFF CW Mode hitting the paddle, or key, WILL NOT
cause the rig to go into CW Xmit (but you will still hear the sidetone if
...wondering if there'll be some good reading material posted for our
weekend.
Regards,
Dick - KA5KKT/4
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There is a bypass relay shown in in the PA I/O
block which would provide the receive path.
Is this really a relay or some bypass circuit?
There are no T-R relays, Bob. The block diagram is indicating a
switching arrangement. Trust me, the T-R switching is not mechanical at
QRP or QRO
On Fri, Sep 21, 2007 at 10:36:24AM -0700, Robert Tellefsen wrote:
I've been studying the block diagram of the K3,
and have a question about the 100w PA block.
There is a bypass relay shown in in the PA I/O
block which would provide the receive path.
Is this really a relay or some bypass
There is a bypass relay shown in in the PA I/O block which
would provide the receive path.
Is this really a relay or some bypass circuit?
I wouldn't be happy with a relay flapping away, trying to
follow keying. Hate the clicking noise from them.
T/R switching is done with semiconductors.
Thanks, Lyle.
I thought that would be the case, but
good to have it confirmed.
Not ready to operate QRO yet, but when
I buy my K3 it will have the 100w PA in it,
just in case :-)
Thanks and 73
Bob N6WG
The Little Station with Attitude
- Original Message -
From: Lyle Johnson [EMAIL
The K2 TEST mode inhibits TX in CW, but it doesn't affect SSB or RTTY
modes, only CW and TUNE. I see the K3 has a TEST button which in the
quickstart is listed under SSB mode as alowing off the air
adjustments. I hope it applies to all modes, including CW. For me,
an across the board TEST
I too vote for a QSK OFF state to accomplish this -- it seems the most
convenient way that I can think of
My ICOM 735 uses VOX for this - it becomes KOX in CW mode. But I don't
like that very well because when I switch to phone the VOX will be on and I
dislike VOX. I guess that using VOX would
Joe, aa4nn wrote:
Exactly. Human factor=Flashy knobs.
NEW Q SIGS:
QKN? How many knobs does your radio have?
QKK? How many of them do you actually know how to use?
I find that my KLR [knob learning rate] on a new radio is about 1 K/M
[knob per month]. I would like to finish the learning
Hi Rick.
Just read your post to the Elecraft list.
I hope your comments have reached who I feel is the intended recipient.
With regard to your NCJ article I would love to read about your
impressions of the K3
Would it be possible to forward me a copy of the article.
I realise this may not be
Dear Don
My K2/100 is working again
I replaced D16 and D17, resoldered all components of the wattmeter
circuits, and all problems with swr and power readings were solved.
Many, many thanks for your help.
I was not so happy with the ATU/100.
When you try to tune, relays switch, swr leds do not
David Ferrington, M0XDF wrote:
Being relatively new and not having a rig with two receivers, please forgive
stupid question:
Asking a question automatically makes it non-stupid :-)
Once I have my K3 with the KRX3 - working split, listening on the Rx freq in
1 ear and the Tx in the other
I'm not certain if it's because it's recorded in 2
channels or not, but this audio is distinctive and
pretty exciting. Especially the 75m demo. Thanks Tree!
[Elecraft] More K3 Audio Files
Tree tree at kkn.net
Thu Sep 20 23:18:54 EDT 2007
Previous message: [Elecraft] Fwd: K3 and phase noise
Thanks Ed on both counts. I am glad test works, and indeed I was
confused about the PTT/QSK mode issue being discussed.
Leiogh/EA5ZNU
On Fri, 21 Sep 2007 11:20 am, Ed Muns wrote:
The K2 TEST mode inhibits TX in CW, but it doesn't affect SSB
or RTTY modes, only CW and TUNE. I see the K3 has a
Radio Off brings back memories. A few years back,
a good ham friend of ours, with whom we had a daily
ragchew on the Baltimore Beltway, told us this
story:
Following our sometimes long ragchew on 2 meters,
on one of Baltimore's famous repeaters - he drove
a little farther north on his 58 mile
Concerning TX/RX out of ham bands:
Maybe there is some way thanks to firmware - allow general coverage ONLY
in transvertor mode.
Maybe some wish-list is there...
About offset - if it is the same as on K2 it is +-9,99kHz so sometimes
it is enough. Maybe it is not the same as on K2, who knows...
N6TR:
This is an important point that I should have made before. We need an option
to ignore any input on the paddle input (or CW input) unless PTT is asserted.
Amen! Rather than using a Spot button, I send
a few dashes from my key to hear my sidetone when zero
beating someone. Less
Well, the response to this was rather positive for having the ability to turn
off QSK. I, like Tree, should have included the point about having PTT input
for CW. Since I rarely use an amp or full breakin, I previously didn't have a
need for a footswitch in CW. But I now will consider it's
FWIW, a good friend of mine and super CW OP/Contester/DXER (past-pres of
NCCC) was a strong advocate of the CW PTT, esp if running the linear.
WA6VNN Al
** See what's new at http://www.aol.com
___
Elecraft
For super fast contesting I don't see how one
could beat the combination of a QSK amplifier
and a QSK rig. I must be missing something.
de Joe aa4nn
-Original Message-
From: [EMAIL PROTECTED]
Sent: Sep 21, 2007 7:12 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 and QSK
Rick, I too want to watch Elecraft evolution as a company. Niche marketing
is especially interesting to me.
I know it is a personal factor, but I want a separate mode switch, and
separate instant selection band switches. Leaving these off a high end rig
has no excuse and altho die hard
That's true. But if you don't have a QSK amp,
using PTT to switch the radio from RX to TX,
send the memory (CQ, Exchange or QRZ) and
immediately back to RX is the next best thing.
No VOX delay hang time.
73HankK8DD
Joe, aa4nn wrote:
For super fast contesting I don't see how one
Between the broadcasters, and band plan conflicts between countries, 40m
here on the east coast, to me at least, has been practically worthless.
Down to about 25KC of useful air.
David Wilburn
[EMAIL PROTECTED]
K4DGW
K2 #5982
FP#-1751
Geoffrey Mackenzie-Kennedy wrote:
On 9/21/07, Bill
Also meant to say, sorry to hear about your location, sounds worse than
what we have.
David Wilburn
[EMAIL PROTECTED]
K4DGW
K2 #5982
FP#-1751
David Wilburn wrote:
Between the broadcasters, and band plan conflicts between countries, 40m
here on the east coast, to me at least, has been
Its been five or six years since I built my K2/100, and I don't remember what I
would need to do to increase my vox gain. R14 on the KSB2 is 5.6K. I want to
use the Heil Goldline GM-5 dynamic mike. Should R14 be increased or decreased
to keep the vox from dropping out between words? If vox
It's that time of year, again! Time for the Fall edition of the NJQRP
Homebrewer Sprint. It will be held this Sunday night (Monday morning UTC
time). So put on your headphones, grab your key and come join us for a
spell. Work a half-hour, work an hour, work all four! The point is to
join
Question please - is the hardware AGC preceeding the
DSP active only in excessive signal scenerios to keep
the DSP from becoming overloaded, or can the hardware
AGC be activated at normal signal levels by the K3
firmware to work in conjunction with the AGC algorithm
in the DSP stage?
Question please - is the hardware AGC preceeding the
DSP active only in excessive signal scenerios to keep
the DSP from becoming overloaded
Delete the word only and change DSP to ADC you've got that part
correctly understood :-) It is used to protect the IF Analog to Digital
converter from
Thanks very much Lyle!
I see (said the blind man).
So if you connected a meter to the hardware AGC you
would normally see no voltage at typical received
signal levels and that ADC might see increasing
voltage all the way up to it's tolerance before the
hardware AGC would jump in at with some
So if you connected a meter...
Let's just say the the hardware AGC does what it needs to do in a
carefully crafted way to protect the A to D. The DSP observes and uses
this information as it performs its AGC and S Meter duties, and may
intervene.
There will be some detail in the service
I've heard this before. Sounds like I could tell you
but then I'd have to kill you. ;-) ok tnx...
[Elecraft] K3 AGC Design Question
Lyle Johnson kk7p at wave.com
Sat Sep 22 00:38:01 EDT 2007
So if you connected a meter...
Let's just say the the hardware AGC does what it needs
to do in a
The K2 TEST mode inhibits TX in CW, but it doesn't affect SSB
or RTTY modes, only CW and TUNE. I see the K3 has a TEST
button which in the quickstart is listed under SSB mode as
alowing off the air
adjustments. I hope it applies to all modes, including CW.
Yes, the TX/TEST feature in
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