While on a business trip to Lake Havasau City, AZ I made my first ever QRP
contact this evening, and with my newly assembled KX3 # 5607 with W1AW/4 in
Georgia. Using 5 watts and received 59 - nice signal for QRP from out
west. Of course he has a beam pointed to the west so that helped a great
Try these frequencies as a starting point. These are the popular CW QRP
frequencies for the HF bands.
1.843MHz or 1.836MHz
3.560MHz
7.030MHz
10.106MHz or 10.116MHz
14.060MHz
18.096MHz
21.060MHz
24.906MHz
28.060MHz
There may be others as well.
Dave (G0DJA)
- Original Message -
To:
Hi all.
Yes Jim you right.
Even with some difficulties, i.e. re-key each time the call sign of
the correspondent, it work better with an external keyboard. THis
using the K3/P# combo without a PC.
On the other side, using even a Net PC with just MMTTY,
But also the old and trusted MMTTY may work
This is why when I operated from the beach in Punta Cana as HI/K8MR in the
2014 ARRL and CQ CW DX contests, I took care to tape over all unused
connectors, the seam where the two halves hinge together, and the speaker (I
was using ear buds). While I did not do so, it might also be good to put
I installed the 4.81 beta firmware and I am able to change the crystal filter
offset as described in the firmware notes. I can hear slight differences in
a CW signal between 0.1, 0.2, and 0.3 KHz. What I don't understand is what
does it mean. Previous to this release I would have assumed that the
Hello,
Just update mine s/n #6552 and for my surprise he lost power on the upper
bands (18-28mhz). Instead of 100 watts he has 55 watts, more or less.
I revert the previous version ( 4.67) and the power back again.
Does anyone have the same issue ??
73
Rodrigo
ct1bxt
--
A utilizar o
I've had good luck with the CW freqs Dave listed below. Some of the
QRP SSB freqs include:
1.910
3.985
7.285
14.285
21.385
28.885
73,
matt W6NIA
On Wed, 5 Feb 2014 08:46:33 -, you wrote:
Try these frequencies as a starting point. These are the popular CW QRP
frequencies for the HF bands.
There are lots of hangouts, but they are kind of limiting. They are
handy when you are rockbound, or when you're collecting paper for QRP
club awards. But why restrict yourself to a few channels when you have a
rig that isn't restricted. That's where QRP signals belong--from one end
of the
ELECRAFT K3 items for sale:
Roofing filters:
KFL3A-250
KFL3A-1.8K x 2
KFL3A-6K AM
KFL3B-FM
$105 each
KPA3 100 watt module
$400
KAT3 Internal ATU with 2nd Ant. Jack
$240
K144XV-K Internal 2 M 10w Module
With K144XV Reference Lock Board
$315
KDVR3 Digital Voice Recorder
$105
KTCXO3-1
Guys,
I ran a sweep of the filter response with a 400 Hz filter at nominal 0.2
and 03.
I have the plot but can't post here.
In short the left side of the filter response is moved to the right.
The right side moves slightly inward as well.
The net effect is a narrowing of the filter -6db
On 18/12/2013 09:58, Rick Bates wrote:
In the event that there is a power failure, someone has to have physical
access to the station to turn the K3 power back on. I'm working on this
(use an alarm or tickle the ACC line for now). That someone also makes a
pass through the house to water
I should also point out that his shows no measurable effect on the 250
and 200 Hz filters. 400Hz and wider are impacted.
On 2/5/2014 14:37, Brian Alsop wrote:
Guys,
I ran a sweep of the filter response with a 400 Hz filter at nominal 0.2
and 03.
I have the plot but can't post here.
In short
I wasn't suggesting that they were the only places where people used QRP,
but they are the places that you are likely to hear other QRP operators, so
they aere good places to start.
Likewise, I usually tune up and down the band looking for whoever is around,
QRP or not. I also look out for
On 2/5/2014 9:55 AM, Brian Alsop wrote:
I should also point out that his shows no measurable effect on the
250 and 200 Hz filters.
It will if you choose a 300 Hz offset and Pitch less than 425 Hz for
the 250 Hz filter or a 300 Hz offset and pitch less than 400 Hz for
the 200 Hz filter.
One
The center of the passband to the nominal pitch value only occurs at
higher pitches and/or narrower passbands.
Think about the case where you have 1.5 kHz width selected and a pitch
of 500 Hz. You defintely do NOT want the center of the filter and the
pitch to be equal,or you'd have terrible
This just establishes the low-pitched rolloff by adjusting the filter position
relative to zero-beat.
Setting it to 0.1 or 0.2 (the default) will have the least impact on the CW
passband. 0.1 provides better low-end audio. 0.3 is for cases where you have
such extreme signals that you need to
Stewart,
See page 44 of the manual. You cannot simply strap between ACC pins 5
and 8 - that connection must be removed after the power off command is sent.
73,
Don W3FPR
On 2/5/2014 9:49 AM, Stewart Bryant wrote:
I have a K3 that I wish to operate remotely.
I am happy to leave it running
Hi Don
That is at odds with the FAQ
http://www.elecraft.com/K3/K3FAQ.htm#auxbus
I understand that if I short two pins from the ACC connector on the
back I can turn the rig on. When shorting those two pins is it
momentary or constant?
Momentary (at least 0.5 second). Or you can leave it on
I have a clean working XV50 no problems that I would like to trade for an
XV432.
Anyone interested? 73, Mike K0AZ k...@centurytel.net
K0AZ
Mike Sanders
EM37cd SW Missouri
www.k0az.com
__
Elecraft
Hi Don
True(ish) I tend to leave the rigs running for weeks on end
doing things like WSPR monitoring in their spare time.
However I do have access both local and remote access
to the power supply.
Stewart/G3YSX
On 05/02/2014 16:18, Don Wilhelm wrote:
I don't think it is at odds with the
I don't think it is at odds with the FAQ. Notice the part that says at
least until you want to turn the rig off.
I think you *would* want to turn it off at some point.
73,
Don W3FPR
On 2/5/2014 11:05 AM, Stewart Bryant wrote:
Hi Don
That is at odds with the FAQ
We just posted the following KXPA100 shipping status update to our shipping
status page at:
http://www.elecraft.com/elecraft_shipping_status.htm
(We updated the shipping time to 2-3 weeks on new orders, and updated the
notification date through January 1st orders. Also added the company phone
Thanks Jim,
Yes salt is more of an issue. Fortunately it was dry.
I seem to have cleaned it up but still got an issue with the rotary
control on far right the switch doesn't always switch.
72
Dom
M1KTA
On 05/02/2014 13:24, jimk...@aol.com wrote:
This is why when I operated from the beach
The latest KXPA100 firmware can be found at:
http://www.elecraft.com/KXPA100/KXPA100_software.htm
Changes:
- ATU TUNE low-power threshold was adjusted so that ATU tuning doesn’t get
stuck if the KX3's power output folds back (reduced due to SWR or high
current). In prior versions, the
I use the PicKit3 usb dongle for in circuit programming and some
debugging. Software is MPLab-X. The PicKit3 is about $45.00 and the
software (including C compilers) is free.
Works for me.
Mark AD5SS
On Wed, Feb 5, 2014 at 11:20 AM, Lee Buller k...@swbell.net wrote:
I know there are a lot
The latest KPA500 firmware can be found at:
http://www.elecraft.com/KPA500/kpa500_software.htm
NOTE: Please also install the latest KAT500 firmware, if applicable. This is
the subject of a subsequent email.
Changes:
1. Attenuator fault deferred to allow KAT500 to interrupt amp key line
It may seem that I'm bragging, but I can't help letting this thread pass
without a comment in the hopes that I can convice other
hams that they don't need any more that 5 Watts.
First, let me say that QRP and QRPp works. All it takes is a little
determination, patience and of course a good rig
Be sure to look at FlashForth from Mikael, OH2AUN especially for PIC18F .
Info, files and help are at the web page for FlashForth on SourceForge.
Pete
AG7C
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Home:
This weekend is the Orlando Hamcation, Friday 12-6, Saturday 9-6 and
Sunday 9-2.
Eric and Lerma will be attending again this year and could use some
customer help in the booth.
If you are available and willing to help out, please email me directly
(l...@elecraft.com) and let me know
what
Same feeling here. I run a K3/KPA500 at the home QTH (in Colo.) but built a
KX3 (s/n 5411) to take with me for the few weeks when I am working away from
home (in NY). With the simplest low dipole it's a kick to work the world with
5 watts - and even more so to sneak through a pile-up. As a
I know there are a lot of you people who are into PIC programming and I am
looking at doing so.
After reading for many hours in the Internet, I have become awash in PIC
programming hardware and software. I need someone who is knowledgeable to
recommend something to me to get into this
The latest KAT500 firmware can be found at:
http://www.elecraft.com/KAT500/kat500_software.htm
NOTE: Please also install the latest KPA500 firmware, if applicable. See
previous email.
Changes:
- Frequency counter improvements and related bug fixes
- Improved integration with KPA500
Already noted. See the footnote here:
http://elecraft.365791.n2.nabble.com/Ref-Osc-Cal-Method-4-tc2595451.html
On 2/5/2014 8:35 AM, Lyle Johnson wrote:
Zero beat has to do with frequencies, not filter responses, and changing the
filter edge should have no practical effect on whether or not
I have been running QRP for years and never look for QRP hangouts. You will
be surprised how folks you work will be surprised that you are running QRP.
DXCC is not only possible but not that difficult with a good QRP rig like
the KX3. Just ham and enjoy. Welcome to the QRP fold.
Bob
W1IS
I think a good way to test whether QRP actually works or not is to establish
a contact with someone say using 100 watts and get a signal report (RST) and
then drop your power output to 1 watt or maybe 2 or 5 watts and then ask for
a signal report again. I am always surprised at how good the
Hello,
Has anyone connected the K3 to the LDG Auto Tuner 600 Pro II? If so
how did you do it(i know with a cable :) )
73
Rob WB2OMW
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Help:
Don,
Thanks you for this tip, and yes, I now realize my windings on T4 are not
exactly as shown in the manual. However this realization raises a broader
concern.
Here is what happened. I wound my toriods using a winding tip I'm sure I
picked up on the Elecraft list some time ago. To wind the
Sorry for this: I used to have miniature cheat sheet manuals for my
Yaesu VX-5R and VX-6R HTs. I am NOT referring to Nifty. These were more
to my liking. They were yellow, multipage booklets that fit in a shirt
pocket. I think a VE ham published them.
Can anyone guide me to the source? I am
On 2/5/2014 10:58 AM, W1IS wrote:
I have been running QRP for years and never look for QRP hangouts. You will
be surprised how folks you work will be surprised that you are running QRP.
DXCC is not only possible but not that difficult with a good QRP rig like
the KX3.
Sorry to be a wet
Not being as technically savvy as many here on the reflector, can someone tell
me the benefits and theory behind the differences in using these two IF freqs.
in the XVTR?
thanks in advance
todd
WB2ZAB
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Hi Rob,
Up until a few months ago I had been using my K3, going into an Ameritron
AL-811 amp, through the LDG AT-600 ProII, and then to an external 4:1 balun,
110 feet of 450 ohm ladder line, and an 88 foot long doublet. I also had the
M-600 analog meter connected to the AT-600 ProII.
Nothing
Thanks. It was VE3AYR who publishes these.
I am all set. No more needed, 73 de Brian W3BW
--
70 is the new 40.
Brian F. Wruble, C.F.A.
1107 Key Plaza, PMB 447 Key West, FL 33040
Summers: P.O.Box 57, 7400 Augustine Herman Highway, Georgetown, MD 21930
eFax 305.768.0278 Skype bwruble
Friends,
Tonight I managed to work FT5ZM using the KX1 at 4 watts output.
Okay the Yagi is a big help but boy does this add zest to the hobby.
This is 1940 miles per watt; what a sweet wee radio. It made it through
the pile up.
73 Doug EI2CN
Indeed Don, that change has helped a lot. Now I can tune the
vast majority of SSB signals on 160, 80, 20, 15, and 10 meters
while in coarse mode.
I have noticed that some of my tuning problems seem to be slow
response from the K3 - P3 - SVGA link. I usually tune SSB
looking at the waterfall
Sorry to point out the obvious, but that could be said of any power
level. And add band conditions at any particular point in time. There's
nothing magic about 5 watts out and there's no more magic at 100 watts
out. 100 watts will get out some times when 5 watts won't, but 5 watts
(or far
Hello Aptos Dudes,
SOTA is exploding in popularity and your product line started with a radio
named after one the highest.
How about a KX2, through hole, 7 to 24 MHz CW / SSB 20 W. SOTA radio?
I love my KX3 on summits.
Good Wishes,
Glen VK1FB
Actually, many QRPers seem to be saying that it's /easy/ to work the
world with 5 watts and a crummy antenna, and it's sinful to use more
power, or, God forbid, a beam.
It is /hard/ to work DX with 5 watts and a low dipole (or worse, a
Buddipole or similar antenna). This can be very
1-5 days after we notify you its ready to ship. If we have not contacted you
about final billing and shipment and you ordered before or on January 1st (PST -
CA time), plesse email sales @elecraft.com of call our sales group at
831-763-4211 and they will get everything going for you. We have
[typos corrected!]
1-5 days after we notify you its about ready to ship.
If we have not contacted you about final billing and shipment and you ordered
before or on January 1st (PST - CA time), please email sa...@elecraft.com or
call our sales group at 831-763-4211 and they will get everything
Good idea! But I want 80 m and 10 m included as well!
A kit in the tradition of the K1, K2 and KX1, a KX1 form faktor with built in
antenna tuner, but with SSB would be a welcome adition to the Elecraft line!
Martin Storli
LA8OKA
Oslo, Norway
ARCTICPEAK's Radio pages!
For you KX3 signal processing experts and the algorithms implemented for the
KX3?
Is there any work to clean up an actual SSB signal to make it more intelligible
in cases of various phase changes or interference via reflections (ionosphere).
I mean, a slightly warbled signal cleaned up to
Hi Glen,
I don't think we'd design a different portable SSB rig just to make it a
through-hole-components kit. We'd either have to make it a lot larger than the
KX3 or greatly reduce the number features and level of performance. We did this
calculation a few years ago and the KX3 is the right
Of course I meant in the face of noise or interference…. Not sure how
reflections snuck in there.
Wayne
On Feb 5, 2014, at 2:59 PM, Wayne Burdick n...@elecraft.com wrote:
Hi Phil,
The KX3 (and K3) both provide several ways to make speech signals more
intelligible in the face of noise
There's no particular benefit to an 18-MHz I.F. But 10 MHz can be useful for
VLF/LF transverters (e.g., 500 kHz) because very high-stability 10-MHz
oscillators (OCO's, or oven-controlled oscillators, etc.) are available at low
cost for use as the mixer injection oscillator. This combined with
Coax from the K3 to the LDG tuner, coax from the tuner ANT 1 output to
the balun (running a doublet). 12v to the tuner. Change freq on the K3,
TUNE on the K3, and let the LDG do its job. No control cables or
anything special needed.
73, Dennis NJ6G
On 2/5/2014 11:27 AM, Robert Biamonte
Hi Phil,
The KX3 (and K3) both provide several ways to make speech signals more
intelligible in the face of noise or reflections, including NR (stochastic
noise reduction), NB (impulse blanking), and passband shift/width adjustment.
I'm not sure that compensation for multipath distortion is
Wayne,
Thanks for the quick reply. My friend and I were discussing ways of doing this
(that is, sending/receiving clear voice with DSP helps) and then I decided that
it has been done. Well, not by the K3 because it does not digitize the actual
signal being sent but I was thinking of D-Star
You're right of course. It takes some time to get comfortable with QRP and its
limitations, and you're right, that it can be a source of frustration for many
new hams. Your are also absolutely right that when you ad a crappy antenna to
the mix, it can be very frustrating indeed. But that's the
Just to expand a big on what Wayne states:
Operation on the upcoming (but not yet established by the FCC) new
600 meter ham band on 472-479 KHz, K3 use is enhanced by this upgrade
in the firmware. It allows operating the K3 on 10.472-10.479 MHz as
the IF input to a transverter which can use
It is, look up FreeDV and the open source CODEC being used with it for
HF applications. I think there was some discussion of all this on this
reflector a couple months back, you might want to do a search for it.
73,
Lyle KK7P
...I was thinking of D-Star and its use with repeaters. I
Ed,
Your transverter idea sounds like a nice addition to the K3. (Such a
transverter could be also used with the KX3. But due to size constraints, of
course, the KX3 uses a different synthesizer technology that can't provide 1-Hz
stability.)
Wayne
N6KR
On Feb 5, 2014, at 3:59 PM, Edward R
Eric,
What timing. I just found Dean's note letting me know my number is up. Thanks
for taking the time.
73,
Barry
K3NDM
- Original Message -
From: Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com
To: Barry LaZar k3...@comcast.net, elecraft@mailman.qth.net
Sent: Wednesday,
It does effect what CW skimmer sees. At least it does here. I have to set .1 to
get skimmer to decode.
73 Doug N3QW
Wes (N7WS) w...@triconet.org wrote:
Already noted. See the footnote here:
http://elecraft.365791.n2.nabble.com/Ref-Osc-Cal-Method-4-tc2595451.html
On 2/5/2014 8:35 AM, Lyle
Yes, there are many QRPer's who also frown on beams and other efficient
antennas, but I disagree with that philosophy. Why 'shoot yourself in
the foot' with a compromise antenna unless your physical conditions
dictate that compromise as a necessity (HOA restrictions, portable
operation, etc.)
Wayne,
Did you mean to post that beta firmware in hex format?
thanks, Brian, K1NW
-
Brian, op K1NW
--
View this message in context:
http://elecraft.365791.n2.nabble.com/New-KAT500-beta-firmware-now-available-rev-1-52-tp7583698p7583735.html
Sent from the Elecraft mailing list archive at
Oh scratch that - I remembered I have to use the utility - DOH!
-
Brian, op K1NW
--
View this message in context:
http://elecraft.365791.n2.nabble.com/New-KAT500-beta-firmware-now-available-rev-1-52-tp7583698p7583736.html
Sent from the Elecraft mailing list archive at Nabble.com.
Beta firmware is published in a zip archive that contains firmware (in hex
format) and the associated release notes.
instructions for installing beta firmware are the same as for our beta K3
firmware. See http://www.elecraft.com/K3/k3_beta_release_instructions.htm
73 de Dick, K6KR
I don't understand how this could affect Skimmer. This is a shift pertaining to
the CW passband that the operator hears.
Wayne
N6KR
On Feb 5, 2014, at 4:17 PM, Doug Alspaugh dalspa...@comcast.net wrote:
It does effect what CW skimmer sees. At least it does here. I have to set .1
to get
I used the K3 utility to set all 4 CW memories. M1 has my call. I’ve been using
that one extensively lately. Today, after an hour of calling W1AW/KH6, suddenly
pressing M1 gives me this:
Main display: uC 04.67
VFO B display: FW REV5
The other 3 memories still work fine. I went into the utility
It might be possible to decompose speech into a constellation of formants and
filter out frequency and time components that didn't match human speech
patterns, a bit like a Viterbi decoder for speech. You'd have to be careful not
to overfit the training vocabulary and to allow for different
I understand that the stuff I’m seeing when I press M1 is information about the
firmware. But why is it coming up when pressing M1??
Carl Yaffey K8NU
Banjo, guitar, bass, mandolin, dobro.
recording studio.
cyaffeyno_s...@gmail.com
614 268 6353, Columbus OH
http://www.carl-yaffey.com
On 2/5/2014 5:07 PM, Carl Yaffey wrote:
I understand that the stuff I’m seeing when I press M1 is information
about the firmware. But why is it coming up when pressing M1??
Don't know your K3 S/N, but I'm having some problems with S/N 642 doing
similar things. Pressing switches sometimes
I don't remember if I ordered the TXCO-1 option for my SN 1210 K3. Is it
obvious if I open the unit? What would I look for?
Is the TXCO option necessary if the External reference is used?
Thanks
jim ab3cv
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What is needed is complete digital voice transmission. Of course you would
lose the personal touch on SSB but one could make weak signal operation
somewhat better. With encryption keys, you could talk to your buddies in
complete confidence. Gee what would the guys on 75 and 20 do if they
There are two banks of 4 memories, and you switch between them by a HOLD of
the REC button.
Maybe you've somehow switched banks by holding the REC button?
See page 30 of the owner's manual, CW Message Record/Play
73 de Dick, K6KR
-Original Message-
From:
Maybe somehow M1 has been assigned as a program function key. Try tapping
REC and then tap M1 to reassign M1 to its memory function.
Dick, K6KR
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Carl Yaffey
Sent: Wednesday,
Hi Carl,
This has come up before on the reflector. It was caused accidentally as
follows. Somebody held the MENU button such that the K3 displayed uC 04.67
and FW REV5. Next they pressed the M1 button. That's all it takes to assign
a M key to a configuration function.
73,
Mike K2MK
Carl
I've shot myself in the foot like this before
if you are in the CONFIG menu
and you hit the M1 button
then what ever CONFIG entity that you were looking at
is placed in that M1 button
if I remember correctly..
to get out of it
tap REC
then tap M1
then use ur key to send what ever you wanted
You must have checked few version and then pressed M1 and thus set M1 to check
version.
Done that
...bill nr4c
Sent from my Verizon Wireless 4G LTE DROID
Carl Yaffey cyaf...@gmail.com wrote:
I used the K3 utility to set all 4 CW memories. M1 has my call. I’ve been
using that one
I think he just reprogramed the M1 button as another pf buttonTo
display fw rev.
...bill
Sent from my Verizon Wireless 4G LTE DROID
Dick Dievendorff d...@elecraft.com wrote:
There are two banks of 4 memories, and you switch between them by a HOLD of
the REC button.
Maybe you've
And that's an important point, Don. A poor antenna hooked to a 5 watt
rig is no different than a poor antenna hooked to a 100 watt rig...in
receive. Power sometimes gives you an advantage on transmit under
marginal conditions, but it does nothing on receive as you mention. Then
you run into
Just a heads up to all on the list, someone is posing as me, William H. Ross at
k6mg...@aol.com and listing a K3/P3 station with all equipment for $2950.
I don’t have a P3, but do have a K3 which is not for sale now, around Christmas
time, I did post an ad on QRZ listing my K3 for sale, and per
Here are the results from last Sunday’s SSB net. A lot of KX3s checked in, but
they aren’t all QRP now. We had 37 participants in 33 minutes.
Here is the list:
Station NameQTH Rig S/N
N6JWJohnCA K3
Nigerian scammer. These clowns have discovered ham radio, unfortunately.
Be very cautious on the Internet. Trust no one and thoroughly vet your seller
before sending money.
I am seeing more and more of this stuff on eham. I manage the classifieds there.
I had a recent case where a ham had his
Thanks for all the responses. It seems I reprogrammed M1 inadvertently.
Probably by pressing something (like MENU) and pressing M1. I used REC and
keyed in my call to M1 using the paddle and all is well. Funny though. I tried
to redo M1 via the utility and that didn’t work.
Thanks again and 73,
Of course I just thought of the phraseology, I am looking for a control cable
like the ones made for Yaseu and Kenwood. This cable would reduce the K3 power
to Tune level and return the power to normal when the Tune button is released
on the K3. Operating like the built in antenna tuner on the
I've got the Inrad 710 6000 Hz in the main Rx, its center frequency
is 8215.
Any issues my ears will be able to tell if I put a 6000 Hz KFL3A-6K
in the sub for diversity?
Thanks,
Gary
KA1J
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is active.
Rob,
Take a look at the manual for CONFIG: TUN PWR - that will set the power
level used for a TUNE.
If set to NOR, it will follow the power knob, but otherwise will TUNE at
the power set in the menu.
ATU TUN is different than TUNE.
73,
Don W3FPR
On 2/5/2014 10:18 PM, Robert Biamonte wrote:
Hi Wayne and all,
Thanks for the explanation which makes a lot of sense.
I wonder if the KX2 could be a CW no solder SOTA rig in a KX1 form factor.
Here in VK SSB is much more popular than CW for SOTA and this is a subject
of discussion on the VK SOTA group.
I am determined to do CW and would
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