Hello,
When I hold NR button to adjust noise reduction, I get levels F1, 1 to 4, then
F2 1 to 4, up to F4.
Clearly, 1 is least, 4 is most, but what do the F's represent? (Can't find any
reference to this on page 24 of the manual.)
I wondered if F refers to filter, if so then why not 5?
Thanks
I'm not sure where this calibration issue has come from. My K3 has a
very accurate S-meter based on measurements from a Marconi 2018 signal
generator. The firmware is MCU 1.96/DSP 1.73. My K3 has had the hardware
AGC modification done. I have the following parameters and results:
Menu
To all you filter aficionados,
first of all thank you very much for all your detailed answers to my original
question, which roofing filter ist best for RTTY operation of the K3. Lots of
very detailed and informative answers were given and even a general discussion
on this issue among
Chris Meagher-2 wrote:
Hello,
When I hold NR button to adjust noise reduction, I get levels F1, 1 to 4,
then F2 1 to 4, up to F4.
Clearly, 1 is least, 4 is most, but what do the F's represent? (Can't find
any reference to this on page 24 of the manual.)
I wondered if F refers to filter,
One point I forgot to mention, those trying to calibrate the K3 S-Meter
with the Elecraft XG1 will probably find it difficult. I calibrated my
K3's meter at S9 (-73 dBm) and S9 + 40 (-33 dBm).
73 Dave, G4AON
K3/100 #80
___
Elecraft mailing list
Post
Hi folks,
Have recently loaded the latest Beta software (1.96) and all appears
well barring an issue with the AFX (bin) setting. See the text of my
message to Elecraft support below - wonder if anyone can check this
while the Aptos team are perhaps busy at Dayton.
Quote.
Just
I think it is just the difference between books and the real world. I
run AFSK, and with the K3 setup you can make full use of the filters.
If I want to drill into a signal the 400hz works well. You leave a
little drop off on each side. If you get it too narrow, the signal
does not decode
David Wilburn wrote:
It has been talked about before, and I was under the impression it was
off the table as for as future availability. Your discussion with
Wayne indicates otherwise.
The connector is used for testing and equipment interaction when they
build the unit at the
Hello,
Sorry if this is a duplication but I did not see my original message go
thru.
I going out on the Appalachian Trail on 18 May 2008. I have to run into
work to turn pumps off, then I am going to the AT.
I hope to be on the air sometime between 11:00 and 12:00 UTC. I will start
out on
The Elecraft 250 Hz 8-pole crystal filter is 370 Hz at the -6 dB point.
You can run the DSP down as low as 300 Hz with this crystal filter and have
minimal roll-off of the 170 Hz shift RTTY signal.
In practice, I have run 200 Hz DSP in large RTTY pileups with great success
in contests for months
Hello Stewart
I've just checked mine with the same beta software and it appears to
work normally. I've checked with front panel headphones, configured for
the speaker to be disabled when phones are plugged in. Also tried CW and
SSB modes.
73 Dave, G4AON
K3/100 #80
Hi folks,
Hello,
Sorry if this is a duplication but I did not see my original message go
thru.
I going out on the Appalachian Trail on 18 May 2008. I have to run into
work to turn pumps off, then I am going to the AT.
I hope to be on the air sometime between 11:00 and 12:00 UTC. I will start
out on
There are quite a few low-price sub notebooks announced in the last few
months, one which has caught my attention is the MSI Wind PC running Windows
XP (for I am a Windows programmer by choice). The CPU chip is very low
power, performance more than adequate for any current digital mode program.
FWIW the new ICOM IC-7200 has a USB port which supplies a CI-V interface
(serial port for radio control) *and* audio input / output, so for full
radio / digital mode support all that is needed is a single USB cable and
computer :-)
Simon Brown, HB9DRV
To try and answer this question completely, I generated a single Spectrogram
plot showing:
1) A typical dual peak RTTY filter response (expect the K3 looks like
this). It was from a Timewave DSP-559ZX. Receiver IF filter is about 350Hz.
MTTY looks the same.
2) A RTTY signal.
I haven't
As the owner of a new K3 (SN 820), I was looking for a way to protect it while
traveling (by car), so I wrote to Rose Kopp, N7HKW, at [EMAIL PROTECTED],
and she responded by sending me a detailed description of her carrying cases
accompanied by color photographs of different color cases and
The RTTY decoder in fldigi is very good - I use this source in DM780.
Knowing how it works I am sure that a very tight 200Hz or 250Hz filter would
be fine. In fact it would be interesting to compare the K3's RTTY decoding
with external software, I'll do this sometime...
Simon Brown, HB9DRV
I have been tracking my shipment of my K3 from California to Massachusetts
which started last Thursday evening (3 day UPS Delivery).
The package is now sitting in a UPS warehouse about 25 miles away from here and
will sit there until this coming Tuesday.
It is so close but so far away!! ARRG.
Axel
I was the first to respond to your question. I told you that I was listening
to RTTY through the 200 Hz, 5 pole filter and it worked fine. Then the
experts came on here and using many words, explained why it couldn't work
because it is too narrow. Maybe they do not actually have the
Mine sounds perfectly normal in BIN. Levels are the same in any of the AFX
modes.
Steve Ellington
[EMAIL PROTECTED]
- Original Message -
From: Stewart Rolfe [EMAIL PROTECTED]
To: elecraft reflector elecraft@mailman.qth.net
Sent: Sunday, May 18, 2008 4:33 AM
Subject: [Elecraft] K3 MCU
Thanks to the patient assistance from Don, W3FPR K2 6442 was on the air last
night (for the first time) with N7CMJ, Less of Evergreen, MT. We initiated
our contact on 2m to coordinate and then made contact on 10m and 15m.
According to N7CMJ my signal was 5/5 with 5 watts. His frequency readout
Chris,
About your Heil Traveler microphone problem: It is only speculation on
my part, but the Traveler with the Kenwood cable may not be completely
compatible with the K2 (or K3 for that matter).
My thoughts are that the Traveler mic uses an electret element - and
that coupled with the
Used laptops can be very cheap. I would go for a cheap laptop and MIXW.
Ken
http://www.cashcowhunter.com
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub,
Order a 400 cycle filter and be done with it. You won't miss a contact.
Ken
http://www.cashcowhunter.com
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub,
Hello Dave,
You wrote:
I have been tracking my shipment of my K3 from California to Massachusetts
which started last Thursday evening (3 day UPS Delivery).
The package is now sitting in a UPS warehouse about 25 miles away from here
and
will sit there until this coming Tuesday. snip
On the other hand new laptops can have a much longer battery life,
especially some of the new sub notebooks. Only important if you actually
venture out of the shack into the big scary green area :-)
Simon Brown, HB9DRV
--
From: Kenneth Waites
Hi Everyone,
I got back from Dayton late last night after seeing all the sights at
the Hamvention including the 'Three Amigos of Ham Radio' (You have to
have seen them to believe it! Dressed in full Mexican garb!) and Steve
with the 'Helmet Tower'. Lots of fun.
The Elecraft booth was a wall
--
From: David and Dianne on Comcast [EMAIL PROTECTED]
An S9+60db signal on the main receiver is not heard at all on the sub
receiver at all.
Erm - can you give an example? My tired brain doesn't understand.
Simple Simon
I have noticed that when using my computer headset plugged into the rear
connections and SPKR + PH is set to NO, the RX audio into the headset has a
hollow or tin cannish sound to it. However when the feature is turned to
YES, the oddity goes away. Has anyone else noticed this?
Mike N8XPQ
-
Please turn on the K3 dual peak RTTY filter and tell us what you see then.
Brian/K3KO
n4lq wrote:
Axel
I was the first to respond to your question. I told you that I was
listening
to RTTY through the 200 Hz, 5 pole filter and it worked fine. Then the
experts came on here and using many
G'morning Mike:
I notice no difference at all when changing from YES to NO to YES on the
CONFIG:SPKR+PH. I have ear phones plugged into the rear jack.
73,
Ken K3IU
K3 #202
~
Mike N8XPQ wrote:
I have noticed that when using my computer headset plugged into the
Guys
Could this, and other audio problems, be the result of not loading fresh
DSP data tables when upgrading the firmware? Just a thought.
Dave, G4AON
K3/100 #80
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to
An S9+60db signal on the main receiver is not heard at all on the sub
receiver at all.
Erm - can you give an example? My tired brain doesn't understand.
A really strong signal being received on one receiver does not bleed
through to the other receiver, even though they share the exact same
OK, I understand (just)!
I guess I'll bite the bullet and pay for one on Monday - I would like to
monitor two portions of 20m at the same time. Currently using my very
capable TS-480SAT on 20m PSK / RTTY, must crank up the K3 :-)
I assume that I can use the same antenna for both receivers?
At 01:14 AM 18 05 2008, Axel Kaiser, DL3ZH wrote:
This I can confirm also with my current OMNI VI+ which does not
allow me to copy RTTY signals with a 250 Hz filter .
Lieber Axel,
I use the 250 Hz all the time with my Omni VI+. Great performance:
good copy and little interference.
Dave G4AON wrote:
Guys
Could this, and other audio problems, be the result of not loading fresh
DSP data tables when upgrading the firmware? Just a thought.
Dave, G4AON
K3/100 #80
Dave,
As far as my own AFX/BIN 'problem' goes, the first thing I did was to
re-load the data
I would like to monitor two portions of 20m at the same time...
I assume that I can use the same antenna for both receivers?
Yes, at least with the KAT3 installed. I've not looked at a K3 +KRX3
configuration without a KAT3.
73,
Lyle KK7P
___
Dave,
Unfortunately I cannot send e-mails to Comcast addresses.
Do you have an alternate address I can use to respond to
your request?
Rose Kopp - N7HKW
[EMAIL PROTECTED]
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a
I have noticed that when using my computer headset plugged into the rear
connections and SPKR + PH is set to NO, the RX audio into the headset has a
hollow or tin cannish sound to it. However when the feature is turned to
YES, the oddity goes away. Has anyone else noticed this?
Not here.
Has anyone determined what the DL1 is capable of for a short time (say 10
sec) in excess of 20W?
Besides the power dissipation, one would also have to consider the PRV of
the diode. It looks like 50W would stay within the diode's PRV rating.
Tnx, Neal WA6OCP
--
View this message in context:
GW0ETF wrote:
Hi folks,
Have recently loaded the latest Beta software (1.96) and all appears
well barring an issue with the AFX (bin) setting. See the text of my
message to Elecraft support below - wonder if anyone can check this
while the Aptos team are perhaps busy at Dayton.
I used mine to make the 50 watt adjustments, since my watt meter only
goes to ten watts, and had no problems. I limited the key down time
to a few seconds, just enough to read the voltage. I made adjustments
with the key up and then rechecked the voltage on the DL1. The
resistors got
I usually browse the Reflector via the Mailman site
(http://mailman.qth.net/pipermail/elecraft/), it seemed to become
intermittent earlier today and now isn't working at all. Is it time for
Elecraft to move their Reflector elsewhere?
Dave, G4AON
I'm using DATA A mode. Contrary to the manual, the Dual Tone RTTY filter
will not activate in DATA A mode. When attempted, the display shows N/A.
To use the DTF, I changed to AFSK A mode. This allows the DTF to work
however the center frequency of the IF changes from 1500Hz to 1356Hz. I will
There is a Unbuilt heathkiy IT-28 Capicator Checker kit. Check it out.
Ebay Item No. 300225991876
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub
Mine left San Pablo on the 14th and that's the last update on the tracking
information. It's On Time for Tuesday, though. (Regular UPS ground).
73,
John W2XS
David Robertson-6 wrote:
I have been tracking my shipment of my K3 from California to Massachusetts
which started last Thursday
You can change the MARK freq in AFSK A mode to one of four values
ranging from 915 Hz to 2125 Hz by pressing PITCH and rotating the VFO A
knob which, of course, will change the center frequency accordingly.
73,
Ken K3IU
n4lq wrote:
To use the DTF, I changed to
I never got a response to my query about the Flying Pig RTFB so it appears
we will have to deal with a lot of QRM on the 40 meter net. The net time and
frequency was chosen long ago to avoid contests but this new contest started up
right on top of us. I don't want to move the net time but
Yes but it won't change the center fq. to 1500Hz so it will be like DATA A.
I'm not sure what the purpose of changing the pitch is.
Steve Ellington
[EMAIL PROTECTED]
- Original Message -
From: Ken K3IU [EMAIL PROTECTED]
To: n4lq [EMAIL PROTECTED]
Cc: elecraft@mailman.qth.net
Sent:
As far as I know, the reason for having the capability of changing the
Mark freq is for personal preference in what you like to listen to. The
Dual PB filter works at whatever frequency you select. I can think of no
reason why AFSK A and DATA A modes would necessarily have to be the same.
I'm
Bear with me on this KenIt's long but hopefully I can explain.:
By the same tokenI can see no reason why the center frequency of DATA A
and AFSK A should be different.
Most advanced digital mode programs such as MixW have something similar to
an Align macro. You tell the macro what you
Yes but it won't change the center fq. to 1500Hz so it will be like DATA
A. I'm not sure what the purpose of changing the pitch is.
DATA A is a general purpose mode. It is SSB with some features that
could cause distortion (like the speech processor) disabled. It is data
mode agnostic: you
In a recent message, Dave G4AON [EMAIL PROTECTED] wrote ...
I usually browse the Reflector via the Mailman site
(http://mailman.qth.net/pipermail/elecraft/), it seemed to become
intermittent earlier today and now isn't working at all. Is it time for
Elecraft to move their Reflector elsewhere?
Since the original K3 manual was printed, many
important new setups have been added to the K3
firmware that are shown and described in separate
documents.
There is now a wiki page that contains the cumulative
options to date. Each setup option can be expanded on
by users of the K3 reflector. Have
Hello,
just question - is internal additional shield linked only to KPA3
module or is delivered also with KRX3 second RX module?
If not is possible to add to the order of KRX3 by some way?
Suppose K3 is more robust with this shield installed.
But not sure about this idea, please change my mind
Finally, I lobbied Eric about looking at the KPA1500 and KPA800 amp
project once again and while being politely non-committal about their
future, I suspect that those of you harboring any interest in them,
should let Eric know your thoughts as he is listening right now!
Hear! Hear! I've
Kevin,
The Flying Pigs don't own any frequency! Start up the net wherever you
feel you can. We'll work around you! ;)
73 de Larry W2LJ
--
73 de Larry W2LJ
QRP - When you care to send the very least!
http://www.w2lj.qrpradio.com
http://w2lj.blogspot.com/
OK... thanks Steve. I am familiar with MixW... have used it for years
and I see what you are talking about. But let me suggest the
following... Go to AFSK A mode and set the mark frequency to 1445. That
will give you a center frequency of 1530 which would put you within 30
Hz of your align
Hear! Hear! I've been slowly assembling some QRO gear to
go with my K2, and I would love to have something that is completely
integrated with the AUXBUS and works as well as the KPA100/KAT100
combination. I'd be especially keen on a KPA800 that I could drive
with just the barefoot K2; my
Hallo Eric Reflector,
Finally, I lobbied Eric about looking at the KPA1500 and KPA800 amp
project once again and while being politely non-committal about their
future, I suspect that those of you harboring any interest in them,
should let Eric know your thoughts as he is listening right now!
Ok Ken but that's with a BW of 150Hz, not too critical. Soon, I am told,
Elecraft will activate the 50Hz filter so it can be used in Data mode. I
suggested to Lyle that they change the default center fq. in AFSK to 1500 so
it will match Data A then let the user change as desired. Then also
KPA1500 would be nice.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Toby Deinhardt
Sent: Sunday, May 18, 2008 5:17 PM
To: Eric Swartz WA6HHQ - Elecraft; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Re: Elecraft at Dayton
Hallo Eric Reflector,
Thank you!!
Please remember you can call me for a contact. Just give me a moment to
lower my power and I'll send FP# 765 back. Just want folks to listen so we can
all have a good time.
73,
Kevin. KD5ONS
P.S. I'll go up a bit today, say 7047 kHz to give you folks more space
If anybody have any experience modifying the XG1 for higher output levels,
please contact me off the reflector. I would like to build a 2nd XG1 to
better test the receiver at higher signal power levels.
Knut - AB2TC
--
View this message in context:
Hi All,
It's all over except the trek home! I'm in Columbus, Ohio and have a plane out
early in the morning. I'm happy to report that this was another outstanding
FDIM, and my condolences to those who couldn't make the trip.
My email at the FDIM hotel was very erratic. Accordingly, I
Hello,
Today I had a great time even though I had to go into work.
I stopped in at work around 6:15 AM and headed to the Appalachian Trail.
I arrived at the parking area around 6:55 AM. It was a short hike that I had
to make, less than a mile. I got to my site and setup the antenna at the
...I
suggested to Lyle that they change the default center fq. in AFSK to
1500 so it will match Data A then let the user change as desired.
The center frequency in AFSK will be between the two tones selected for
the tone pair. It really can;t be anything else.
DATA A is a general purpose
This site must be the world's capital of Abbrevations or ABBS. Left me in the
dust.
Charles Harpole
[EMAIL PROTECTED]
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr.
The KPA3 shield is a simple installation and offers no advantage when the
KPA3 is not installed. It's only functions are to provide a mechanical mount
for the KPA3 and to reduce the amount of RF energy floating around inside
the K3 enclosure when the KPA3 is in operation.
From all the test data
Dave wrote:
I have been tracking my shipment of my K3 from California to Massachusetts
which started last Thursday evening (3 day UPS Delivery).
The package is now sitting in a UPS warehouse about 25 miles away from here
and
will sit there until this coming Tuesday. snip
Dave,
If you have
It's been my experience with UPS that as soon as the package arrives in my
city, it will go out for delivery the following morning; out for delivery
messages occur as early as 5AM. This is regardless of whether the the
projected delivery date is a day or two later. In my experience, UPS
commonly
Hi All,
Something that I saw at Dayton may be of interest to Elecraft
owners--particularly K3, and possibly K2 folks. Jay Bromley and I visited with
Larry Phipps at his booth for a while. Larry has several very innovative items
that he sells, including probably the most unique wattmeter/SWR
Hi to everyone,
We have a pretty bad problem here
In our VHF club station we decided to go for a new rig, and started to use a
K2+XV144.
On SSB it's all ok, but on CW i can't figure out how to deal with ptt
sequencing
We have a mast mounted LNA and a PA next to the radio.
My idea, in
Just for grins I bought a cheap Cyber Acoustics computer headset to use with
my K3 when it arrives. Others have said they got good reports with their K3
and this headset which uses an electret mic and a 3.5MM stereo mini plug.
Not wanting to cut off the plug which fits into the back of the K3 I
Bill
My warranty only covers use with the K3. :*)
Steve Ellington
[EMAIL PROTECTED]
- Original Message -
From: nz0t [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Sunday, May 18, 2008 7:06 PM
Subject: [Elecraft] Help with cheap headset and K2
Just for grins I bought a cheap
Giulio,
Take a look at the K2 CW PTT article on my website
http://w3fpr.qrpradio.com for something that will work for you. It
prevents keying the K2 until an external signal (PTT or the end of your
sequencer chain) becomes active (ground is active).
How you begin the sequencer is your
Well understood Steve! LOL
n4lq wrote:
Bill
My warranty only covers use with the K3. :*)
Steve Ellington
[EMAIL PROTECTED]
Version: 8.0.100 / Virus Database: 269.23.20/1453 - Release Date:
5/18/2008
9:31 AM
___
Elecraft mailing list
Hi,
First, thanks for reading. Hopefully, it won't be boring for those
lucky K3 guys and gals...
CONFIGURATION
KX-1, 3080 upgrade. ATU currently removed and antenna jumper
installed for testing.Using XG-2 as a signal source. I have confirmed
the XG-2 seems to be working about as
Dave,
Thanks for taking time to write an interesting report for those of us who
wish we were there!
Gill ARCI #11246
--
View this message in context:
http://www.nabble.com/Dayton-and-FDIM---More-tp17308267p17309440.html
Sent from the Elecraft mailing list archive at Nabble.com.
Kurt,
From all you have said, I would believe that the problem is in the
KXB3080 low pass filter.
While I agree that your continuity test indicates no apparent problem
with the toroid lead tinning, check all the connections to be certain
there is a bit of solder on both sides of the board -
Don,
I'll check the LPF board closely.
As far as whether the signal increase, I believe it does. Since,
when I touch it, signals I an hearing on my other receiver become
apparent in the KX-1 also. And, I believe the XG-2 signal is increasing
(only by ear). I say that because the
Hi All:
Looking for some insite on how to get my K3 to transmit PSK31. I did have a
problem with the line out but Elecraft support replaced the I/O board and it
now works fine...But no TX on Line in to the K3.Tried the following
setting PTT to rts-off, rts-dtr VOX on K3 K3
Set coresponding on
I was the first to respond to your question. I told you that
I was listening to RTTY through the 200 Hz, 5 pole filter and
it worked fine. Then the experts came on here and using many
words, explained why it couldn't work because it is too narrow.
Using a excessively narrow filter on
I like those handles on the ends and the built-in front firing speaker.
The handles would be a nice option for the k3.
And a 4 to 5 inch wide (0.5EC-3) cabinet could hold a nice front firing
speaker and a switching power supply. If this could be attached to the K3 side
panel and then add
Somewhere in the past Simon Brown (HB9DRV) wrote his favorite settings for
the K2 for PSK 31 and RTTY. I do not know if he wrote about slow scan
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Stupid thing sent the message without me finishing it.
Somewhere in the past Simon Brown (HB9DRV) wrote his favorite settings for
the K2 for PSK31 and RTTY. I do not know if he wrote about slow scan filter
selections.
I don't seem to be able to find it. Does anybody have those settings? I
have
That's a wonderful idea Henry. It would be a great option for Elecraft or
even a 3rd party. The K3 lends it'self to that kind of expansion since it's
got those machine screws all over it. Actuall, a front firing speaker on
each side for stereo rx would be even better.
Steve Ellington
[EMAIL
Good Evening,
The forty meter net went very well tonight. Asking the Flying Pigs for
advice helped a great deal. I moved to 7047 kHz and was not bothered at all.
The was the normal QRN, QSB, and some voice QRM but nothing untoward. The sun
showed some activity which was mirrored in the
Don,
Okay... Frustrated, but here's what I found
On the LPF1 board, L1, 1 and 4 were reversed and shorted together.
This means that, for all intents and purposes, L1 was a wire. Okay,
well, it's a wire anyway, but with a lot less inductance. You know what
I mean! Hi, hi... This
On Sun, 2008-05-18 at 19:27, Joe Subich, W4TV wrote:
...
Using a excessively narrow filter on RTTY is a balancing act.
If the bandwidth is too narrow the tones tend to become smeared
- the transitions become less easy to detect (in other words,
the eye begins to close). However,
90 matches
Mail list logo
