If transmitters are not allowed then arrest everyone carrying a
cellphone or laptop with wifi. Batteries? ditto. Those devices
don't work very well without a battery. Loose battery might have a
question asked. There are sealed batteries that have certification
for air travel, but I suspect
I chose the stock 2.7k, the 400 Hz and the 200 Hz. I'm a casual CW-only op
- mostly ragchews, but occasional DX, QRP and QRQ.
I wanted each filter to have a (more or less) dedicated purpose. The
thinking was:
- 2.7k for listening in the background, tuning around, before a QSO
- 400 Hz when
As you say your are a casual CW operator. Perhaps some feedback from a
nearly 100% CW operator of 50+ years would be useful too.
1) Tuning 400 Hz
2) When things get tough 200 or 250 Hz. The utility of the 200 Hz
signal has been especially good for pulling out really weak ones on 15-6M.
3)
Dear Group,
I have determined that the majority of my RF shack problems were related
to RF on the power lead to the K3. Winding 7 turns thru a 1 clamp on
#31 ferrite has cured the symptoms. With this choke in place
everything is even happy on 160m.
So let me explain how I power the
Sent an email Wed evening to the Parts dept @ elecraft, had one of the original
RF concentric knobs on my K3, # 758, May of 2008 finally split open...Received
a email Thursday am that Elecraft would send me replacements, NO CHARGE. They
were shipped USPS on Thursday and I checked the tracking #
I had a similar experience a few months ago.
They sent me free replacements for all six sets of knobs in the lower
left-hand quadrant of the front panel.
You think I would now buy from any other ham transceiver
manufacturer/reseller/kit-maker (apart from Doug Hendricks)?
Just waiting for the KX3
100% agree
OZ1CCM
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian Alsop
Sent: 4. februar 2012 14:32
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 CW filter choices
As you say your are a casual CW operator.
Has anyone had experience in tying pin 3 to pin one in an XLR connector to
enable the transition from a balanced microphone to the unbalanced input of
the K3? In this regard I have used this arrangement to attach an
Electrovoice RE50B to my K3 and, although I have made satisfactory
RE50b is a low z dynamic mic that is well suited to voice and is an
excellent mic should work well for K3. To use this unbalanced you
are correct to connect pin1 to pin3 (cold to ground) do not
connect the XLR connector body to the ground it should be left
floating. I have used many
My solution for CW is by using a manual PTT on the sequencer when
using CW mode sent by hand. This always on VHF or higher with
transverters, preamps, ext TR relays and Tx amplifiers
involved. When CW is generated by computer (keyboard) the sw I use
has built-in TR delay in the PTT command.
The red cable on the foot switch is for keying an amplifier and plugs into the
amps PTT or relay. This allows the foot switch to key the amp ahead of the K3
on transmit. Keeps you from talking into a dead amp.
On Feb 4, 2012, at 1:21 AM, N6SC roned...@msn.com wrote:
I have looked on the
Well, I'm in for a K3, and I need to pick some CW filters. I've read all
the threads, checked the graphs, and now would appreciate some
experiential reports/advice. I operate almost exclusively CW, mostly
chasing DX, contests, and some occasional rag chewing. SSB only if no
other
On 2/4/2012 8:42 AM, David Moes wrote:
E50b is a low z dynamic mic that is well suited to voice and is an
excellent mic should work well for K3.
Yes. An RE11 or RE16 is even better, because they are directional and
reduce background noise pickup (fans, room noise, etc.)
To use this
Issue has been resolved. After digging deeper into my settings I found that I
had somehow turned the bias on. Upon turning this off and setting the mic
gain to High I immediately had what appears to be normal ALC indication. I
suspect this happens when you operate mostly CW and data modes...
Adrian,
The Linux, Mac and Windows versions of the K3 Utility Terminal all work the
same way. As Dick mentioned in his previous response to this same question, the
K3 itself will not allow lock on indefinitely:
I could remove the code that cuts off diddle upon running out of input
buffer,
Now I'm really confused. I thought I had it straight in my head, after
slogging through all the info in the ARRL posts, etc., that we would NOT
be able to have more than one PSK (or CW) QSO going on in a given
channel, because we are required to always put the one PSK or CW signal
at the same
You want to keep pin one separate ...
Connect pin 3 to the microphone return in the transceiver
(pin 7 in Elecraft/Kenwood transceivers)
Connect pin 1 to the chassis - the *SHELL* of the Foster mic plug
in most transceiver.
If you do it right, you will use shielded twisted pair cable
I am looking for a K3 filter, 700hz. If anyone
has one for sale please contact me off-list. Thanks!
tu...@zoominternet.net
73
Keith N8CEP
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Help:
I think we all need to be careful. In the case of USB, we put our
suppressed carrier [i.e. dial reading on a K3] 1.5 KHz below the
authorized center frequency. The USB energy is above that and fills the
2.8 MHz channel, and it's one QSO per channel.
For CW, we are told to put our keyed RF
- Original Message -
From: Paul VanOveren p...@nf8j.com
To: elecraft reflector elecraft@mailman.qth.net
Cc:
Sent: Saturday, February 4, 2012 5:51 PM
Subject: [Elecraft] WHAT GREAT SERVICE
Sent an email Wed evening to the Parts dept @ elecraft, had one of the
original RF concentric
Fred,
I am glad you stated the their RTTY = our PSK as I had realized that it
wasn't RTTY as we know it but did not know it was PSK which I had assumed
was allowed but with the question of one signal vs. many.
I have the same questions and understandings, but... One item you didn't
Sorry, I should have stated the CW signal you are receiving should be
exactly ON the CENTER frequency of that channel as would be your transmitted
signal.
73, de Jim KG0KP
- Original Message -
From: Jim Miller KG0KP jimmil...@stl-online.net
To: k6...@foothill.net;
--
Robert G. Strickland, PhD, ABPH - KE2WY
rc...@verizon.net
Syracuse, New York, USA
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Post:
Jim,
With Elecraft gear, set the VFO frequency to the center channel
frequency for CW - the note you will hear from the other station should
be at the setting of your sidetone pitch, and you will transmit at the
channel center frequency.
Yes, that is different than the suppressed carrier
I have recently assembled KPA500 serial number 641. When testing into a dummy
load I find that I get a large variation in the DC power input when driving for
500W CW when I go from band to band. My worst band is 21MHz, where I get the
highest current (lowest efficiency). The drive was
120 or 240 volts supply?
On Feb 4, 2012, at 2:27 PM, david park contrast...@yahoo.com wrote:
I have recently assembled KPA500 serial number 641. When testing into a
dummy load I find that I get a large variation in the DC power input when
driving for 500W CW when I go from band to band. My
Sandy wrote:
I am planning on trying CW for the first time on 60 meters on the new
channel 3 on 5358.5. Just hope the PACTOR stuff doesn't jump on that
channel and claim it.
That channel will likely become the favorite 60 meter frequency for the
several military and vintage commercial
I guess the only thing not specified is where the PSK-31 signal shows
up above the carrier frequency. Don't most PSK-31 transmissions use
something around 1000 Hz?
In the discussion part of the Report and Order, the Commission made it
clear that the PSK31 signal *must* be located on the
Juan
You will also have to have a logging program running to poll the radio for
frequency as the cable to
the sd100 only has the receive line.
This prevents collisions at the rs232 port.
73 Larry K1ZW
Juan:
The SteppIR picture here shows the connections:
First off, I'm not a lawyer (and reading it provided a headache) but my
interpretation is:
If USB, select the suppressed carrier on your display (K3).
If CW, go to the CHANNEL CENTER (up 1.5 KHz from suppressed carrier).
If PSK (RTTY) or PACTOR III, set as per USB; the suppressed carrier.
*BUT*
See remarks included below...
-Original Message-
From: Dave New
Sent: Saturday, February 04, 2012 11:55 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] FCC 60m Band Change Rules Published
InFederalRegister On 03 February 2012 - Correction
Now I'm really confused. I thought I
All correct! It makes no difference what frequency you use on PSK! As long
as the pair of tones are within the 2.8 Khz bandwidth of the Channel.
There is a 100 Hz. guard band at the top and bottom edges of the Channel
therefore the channel is only 2.8 Khz wide.
Sandy W5TVW
-Original
Hi, I just started using RTTY on the K3 and I have some questions that I hope
someone can answer.
I am using MMTTY and so far I have done the following:
Set the radio to LSB and tuned into the signal. This works well, but I
can't as yet figure out the frequency I am using especially if I use a
On 2/4/2012 4:52 PM, Sandy wrote:
All correct! It makes no difference what frequency you use on PSK! As
long as the pair of tones are within the 2.8 Khz bandwidth of the
Channel.
WRONG! WRONG! WRONG!
*Read* the FCC's Report Order - it is far more complete than the
rules changes printed in
BTW, most of the transceivers today offset the Receiver to a 600-700 Hz
difference from the dial reading, other wise there would be no tone just
silence received when the station that keys his rig up on the frequency
your dial reads. Read your transceiver manual! This is sometimes a
I had forgotten that the K3 will transmit PSK31 and RTTY without an
external computer. So,
MODETX FREQ
---
CW What the dial reads
USB Supp Carrier at the dial, energy up
LSB Supp Carrier at the dial, energy down
RTTY???
PSK31 ???
I
I would presume that the reason they didn't include conventional RTTY is
because of the excessive bandwidth. You can do the same thing with PSK-31
and MORE and with less power output. Add to that multiple simultaneous
users of the same channel! It’s a natural for channelized bandplan
Joe,
Did you see this indicated anywhere in the information that was in the
Federal Register? I saw no indication that the PSK signal MUST be on some
specific location within a channel. I do remember some random discussion
about there being one user per channel at the same time, but this
Given that the poster is in the UK can probably assume 240Vac.
Regards,
Mike VP8NO
On 04/02/2012 17:31, Jack Berry wrote:
120 or 240 volts supply?
On Feb 4, 2012, at 2:27 PM, david parkcontrast...@yahoo.com wrote:
I have recently assembled KPA500 serial number 641. When testing into a
To all,
I no longer have the RO that was issued a few months ago. Can't locate it.
Joe you must be RIGHT! My humble apologies!
I say its absolutely Stupid but I guess Stupid is as stupid was as that
movie saying went!
In the Federal Register posting, the new 97.303 (h) states: 60 m. band:
Did you see this indicated anywhere in the information that was in
the Federal Register?
Among other places it is in the ARRL's report dated 21 November 2011:
the requirement is to transmit “only on the five center frequencies
specified”. In simple terms, that means the RF emission must be
Who is the referee determining the channel is empty? Propagation being
what it is, two stations may have QSO's going on and none of the group
of 4 thinks hears the other pair. Another observer might hear both
QSO's at the same time. Thus a violation has occurred.
There is no avoiding
Fred,
PSK31 (or any other DATA A modes - the signal frequency is the carrier
frequency (indicated by the VFO readout) plus (or minus) the audio
frequency on the waterfall display.
RTTY will be the same if you are using DATA A mode - if you are using
AFSK mode, the displayed frequency will
I would believe that the purpose of that requirement is that the primary
user can take over the channel without undue effort - contact one user
and cause that user to cease and desist will get the task done.
73,
Don W3FPR
On 2/4/2012 5:56 PM, Joe Subich, W4TV wrote:
Did you see this indicated
If you are using the K3's CW to data (or data using the KY command),
your frequency for PSK31 will be the dial frequency and for RTTY
your mark will be the dial frequency.
Not that it matters since traditional FSK RTTY is apparently not
permitted on 60 meters but if one were using CW to DATA
http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/
52963362/1
http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/5
2963362/1
73,
Dick - KA5KKT
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http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/
52963362/1
http://www.usatoday.com/tech/news/story/2012-02-04/nashville-sound-quality/5
2963362/1
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Hmm.I don't know why the link is broken and why it appears twice.
The article is actually about developing digital technology that better
replicates analog as I understand it.
If interested, you can probably paste the link back together.
73,
Dick - KA5KKT
Apologies to those who prefer top-posting- in this case, makes more sense to
respond in line.
Who is the referee determining the channel is empty? Propagation being
what it is, two stations may have QSO's going on and none of the group
, of 4 thinks hears the other pair. Another observer
So, then, this begs a question. I have a K3 with an Ameritron AL-811H.
I key the K3 with a Heil foot switch connected to a Heil ProSet 5. When
I tried keying my amp off the red cable on the foot switch, I didn't get
any amp keying. When I connected an RCA phono cable between the K3's
key
On Sat, Feb 4, 2012 at 6:43 PM, Ian Kahn - Ham km4ik@gmail.com wrote:
So, then, this begs a question. I have a K3 with an Ameritron AL-811H.
I key the K3 with a Heil foot switch connected to a Heil ProSet 5. When
I tried keying my amp off the red cable on the foot switch, I didn't get
Thanks Dick:
The digital revolution has brought us many fantastic capabilities, such as
this machine I'm using to compose this reply or the K3 on my operating desk.
But all engineering is a study in compromise. Everything comes at a cost.
73
Ron AC7AC
-Original Message-
Hello Don:
If you have cured your RF problems I'm not sure why you are asking your
questions.
In general adding a choke or capacitors to your power lead shouldn't hurt
anything so give it a try. I will add detail to your questions below. BTW
you should indicate how much power you are running and
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