I assume you are inserting the transformer between the jack and the amp in the
mcally amp. Does the lo-impedence end go to the plug and the hi-impedence end
go the the amp, or is it vice-versa?
David, K3TUE
.
--- Leigh L Klotz, Jr. [EMAIL PROTECTED] wrote:
This is a good find...I have never
Hi all, hope someone can offer some advice on this.
I'm building K2 #5551 and was concerned that most of the RF board capacitors
listed as NPO appeared to be ordinary blue resin-dipped ones.
I mailed Elecraft tech support a few days ago to enquire if the caps
supplied were NPO (zero
Steve Kirk/ KW5TX wrote:
Where are the instructions for building the K2FCTR/Frequency Probe ? I
have the kit but can't seem to find how to build.
Appendix E, page 9
--
Nosey Nick Waterman, G7RZQ, K2 #5209.
use Std::Disclaimer;[EMAIL PROTECTED]
I plead contemporary insanity.
David Lankshear wrote ...
Guess I must have done something wrong because I got no reply, so can anyone
who's been there, done that kindly advise, please?
Hi Dave,
I don't have an answer for your NPO question, but I can tell you a little
bit about Elecraft parts support ...
1) Elecraft will
Hi Dave,
Some manufacturers do supply NPO and COG capacitors that are blue
resin-dipped. I have seen other colours but blue seems to be the favourite.
The small blue capacitors that Elecraft supplied for my K2 #3255 RF board
are NPO types, which would be required in the tuned circuits of the
Brian Mury wrote:
Linux use unique jargon or talk related to their software, it is
NOT technical. Even windoze is in English.
Windows uses just as much jargon as Linux does. You just don't notice it
because you have learnt it and become accustomed to it.
Many fields have their own sets of
Hello everyone. I have been following the reflector for about three
weeks now, so I thought I would introduce myself.
I am Oscar, WV1C, formerly WN6NDG in 1969, who returned to ham radio
in March after a 37 year layoff. I found, after a few weeks that I
was just drawn back to CW, my first
Firstly thanks to all who replied to my original post, if I didn't reply
personally..
On closer inspection I have so far found 2 ceramic door knob capacitors that
were falling apart !! These were not in the input coil alignment section,
but near the valves and band-switch in the amp.
For you RF
I'm looking to modify a MFJ-1025 (ala W8JI) and need
to build a couple bandpass filters. My first thought
is to steal the filter from the 160M Elecraft board,
heck it works great. I do not have the parts for that
on hand. I do have the parts for the filter in the
KPA.
Other than power handling,
Peer group pressure. Don't ya' love it! People are struggling to keep
up with 25 to 30 wpm yet we stay there. I've often thought it would be
interesting in a contest to vary the speed depending on the size of the
pile up. Fast for a large pile, slow for no pile. There's just no
benefit in
On Wed, 28 Jun 2006, Nick Waterman wrote:
Many fields have their own sets of jargon, none of them seem that bad to
insiders, most of them sound pointless to outsiders.
AUTOEXEC.BAT, boot.ini, ntldr, regedit, pagefile.sys,
HKEY_LOCAL_MACHINE, Macafee, Symantec, C-colon-backslash, DLL, EXE,
Steve
I also...would like to mount the K2 and EC2 in a rack mount case for
transport in and out of my RV .. I need brackets... any ideas? anyone
done this?
I saw a picture of a rackmounted K2 on the Elecraft website under 'Picture
gallery'. Scroll down to 'More Picture gallery shots' and
Here are three roughly equivilent Linux terms for Macafee AV and
Symantec/Norton AV..
F-Prot
RAV (Reliable Anti Virus)
Clam AV.
First it was the border wars between the Canada and the US and now we are
having religious debates!
Wayne...you better start shipping those KPA-800's soon! We're
Gee, I keep feeling like I have a new K2 but SN 5411 is almost 200
behind the lead runner at this point. By the end of the year we will
probably pass the 6000 mark. Maybe I should start timing it now so I
can get SN 6000?
Come to think of it, who ever decided that keeping track of SNs was a
Hi Oscar, etal,
Welcome to the fold. Excitement is great, but take your time with the
build... enjoy the moments.
You don't need to be frustrated with the new fangled dual lever paddles when
there are
a number of single lever paddles out there. Two very fine paddles to look
at are the
Quick...before Wayne or Eric declare that this thread is over and we keep on
posting about it:
Continue your sparing at
http://www.zerobeat.net/qrp/phpBB2/viewforum.php?f=15
Vent your spleen!
Register for the forum and you'll get a notice when someone challenges your
assertion that the
I am trying to decide.. 1) Build the KPA100 into an EC2 case. 2) Convert my
current K2 to a K2/100. 3) Build a separate new K2/100. Goals are: 100
watts as an option. Maintain portability. Minimum building time. Don't get
me wrong I like building. I have house related projects to do. A Son in
Julius N2WN wrote:
I'm looking to modify a MFJ-1025 (ala W8JI) and need
to build a couple bandpass filters. My first thought
is to steal the filter from the 160M Elecraft board,
heck it works great. I do not have the parts for that
on hand. I do have the parts for the filter in the
KPA.
Other
I suspect option 2) Convert K2 to K2/100 is the simplest way to achieve
your goals. It is the least costly in time and money. The biggest
drawback would be the portability aspect of it but I think the KPA100 is
fairly simple to remove on occasion if you wanted to go back to a wimpy
15 watt K2
Is there a way to use the antenna tuner that is meant for the 100W
k2, with an arbitrary other rig? I mean, it's an Elecraft it's a GOOD
tuner, is there any thought in mind of making an interface box or
something that allows this?
I'm seeing a lot of autotuner complaints on eham etc lately
David Douglass wrote:
On closer inspection I have so far found 2 ceramic door knob capacitors that
were falling apart !! These were not in the input coil alignment section,
but near the valves and band-switch in the amp.
These are probably padders to supply more capacity to either the tune or
.
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Hi David,
The blue resin dipped caps actually -are- the NP0 type. :-) Caps can
appear in a variety of forms and colors and they do not directly
correlate to the type. (Also, the 68 pF cap you think is missing may be
marked either as 680 (68 times ten to the zero = 68pf) or as just
68,
After recently completing a KX1 kit, I wanted to monitor with a speaker and
what I had been using gave me very poor output levels. I bought the recommended
Sony earbuds, which have wonderful volume and reproduction, but still wanted a
speaker because that's the way I operate most of the
Just FYI, my K2-to-be is #5601. Having it built for
me. Hoping to have it somewhere mid-July to a little
after that.
FWIW, will have:
K2 - QRP version
KAF2 - K2 Audio filter and Real Time Clock
KBT2 - K2 Internal 2.9AH Battery Kit
KIO2 - K2 AUX I/O RS-232 Interface
KSB2 - K2 SSB
Richard;
I would opt for the third option (separate K2/100) for just one
reason. As you mentioned below, you have A Son in scouting,
baseball, and band. Is he interested in ham radio yet? When you do
get him addicted, you will want to have a separate station for him to
work with besides
I have often wondered if serial numbers on today's radios run sequential.
Seems like they may skip numbers to make us think they sell more than they
actually do.
I wonder mostly about the Ken,IC and Yaesu.
Al
W4ABW
___
Elecraft mailing list
I have a question for the group. I have recently completed the KX1 with the
30/80 board. The unit is working. Worked OJ0 last Friday night on 30 meters.
The problem I'm having is with the KXAT1. The first problem was reading only
(---) when installed. Problem was fixed with a new MCU for
If memory serves me correctly, the station out in the Carribean that
Bob Patten, N4BP, operates from in some contests has two K2 radios
rack mounted. Maybe Bob could help?
Tim Raymer
73 de KA0OUV
K2 #1383
At 21:42 06/27/2006, Ron D'Eau Claire wrote:
Steve KW5TX asked:
I also...would like
Hi, Dale.
I bought a set of Nexxtech speakers for my KX1:
http://tinyurl.com/l7ql3
They develop a huge amount of audio and they fold together to a package
about the same size as the KX1. Very light and Li-ion batteries last a LONG
time (I'm still on my first set after 6 months...).
I'm very
This is a good find...I have never seen it in the stores...I will look
for one.
Here are a couple more options: depending on your sense of style, you
may also like the Radio Shack 277-1008, which is a $13 mono speaker,
though decidedly Radio Shack looking. A step up (and smallest of the 3)
I found a set of battery-powered, amplified computer speakers at
Dayton for $3/pair. They were designed to use six C cells, three in
one speaker and three in the other. I modified the main speaker to
accept a 9V battery. So, for three bucks, I got a nice speaker to use
with the KX-1 and a
Too bad as it would have been a relatively inexpensive way to get a scope and
spectrum analyzer.
On June 25, 2006 12:30 pm, Alexandru Csete wrote:
What about a PC scope like the Bitscope: http://www.bitscope.com? Anybody
use one of these?
I have one of those and I haven't been able to see
Hi Bill,
First, don't give up! I'd try using a combination of approaches: copy
some W1AW, copy some qsos, practice off-air at your highest sending (not
copying) speed, and of course have qsos at comfortable, but too
comfortable, speeds.
William Moore wrote:
1. Iambic A or Iambic B?
A sends
Do you want to use an iambic key or do you want to do CW? Believe it or
not, you can do a lot of CW without an iambic key. In fact, I've been
using my straight key more than the paddles and have no plans to change.
My CW speed tops out at around 20 wpm. I prefer 15 - 18 wpm for most
QSOs. At
Actually, Iambic operation is a little more complicated than this. I found a
good explanation at
http://www.n9vv.com/k7qo-a-b-keying.html
In this, Chuck says:
In mode A. When the paddle or paddles are released, either during a space
element or during a current element being sent, then sending
Bill, VE2WMA asked:
I made my first CW contacts in 48 years. What a thrill. I was motivated.
It was now time to prepare for FD. I got my code speed up to 100% at 10 wpm
with W1AW sessions but, alas, after what seemed like hundreds of QSO's with
the K2 in the tESt mode, I just could not develop
Hi Bill:
So, before I condescend to selling my Bencher BY-2, retiring the J-38 for
life and start building the K2 SSB board, the 100 watt amp and permanently
retiring up-band, can someone give me some advice on possibly mastering the
Iambic key.
NEVER GIVE UP...!
Questions include:
1.
Hi Keith and all,
My 1999 K2 #402 has never really seemed old to me. Maybe a little before I
upgraded it last year, but it kicked ass back then, and did so again
Saturday night during field day. As a K2/100 it worked so well compared to
the other rigs we were using. Its timeless, and it’s a
I agree with Tom.
NO...! TAKE IT OUT OF TEST MODE NOW!!!
NOW is the time to be OPERATING! GET ON THE AIR and USE your
abilities... use the J-38 as a starting point... you can probably get
up to 18-20 WPM with it yet, all the while improving your abilities
to copy.
There is simply NO
Hi Richard,
I love my K2/KDSP2/KAT2 plus EC2/KPA100/KAT100 combo. To me it’s the ony
way to go. Yes, its got two tuners but they are available for QRO/ QRP when
you need them. Disconnect the cables and go instantly from QRO to QRP.
There are two very good web sites that explain how to do the EC2
One man's nemesis is another man's requirement By pure chance, I
learned to use a keyer with a Mode B machine many,,,many years ago. I
now find that I have trouble leaving off trailing dots if I use a Mode A
machine. So the remark that Mode B allows leaving off a tiny bit earlier
is
I'm just a slap keyer I guess. Never could figure out that Iambic
stuff...when to squeeze, when not to squeeze...so I just flop my digits back
and forth.
- Original Message -
From: Mike Morrow [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Wednesday, June 28, 2006 5:34 PM
That's my technique too.
Doug
W6JD
-- Original message --
From: Brian Murrey [EMAIL PROTECTED]
I'm just a slap keyer I guess. Never could figure out that Iambic
stuff...when to squeeze, when not to squeeze...so I just flop my digits back
and forth.
-
G'day,
Well my set up here is:
Mode B
PdLr
I'm mainly left handed and send dashes with my thumb
Have a Bencher BY-2 or whatever the two paddled horror is called and I
don't like it
Will probably get a single paddle soon, probably Kent kit. My first keyer
was a Samson (sp) ETM-2B which I used
Same story here as Andy...
I completed the first resistance checks on my kx1 over the weekend. My
readings (and confusion) are nearly exactly the same as Andy except my
pin 5 resistance is higher at about 33k.
I had taken a lot of care in putting this together as I haven't built a
kit in
In a message dated 6/28/06 3:06:42 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
I am an 807 generation ham,
I still use them!
Lionel
J-38 key and polished up my rusty fist instead.
Field day arrived and I was on the air as a 1E station with my K2 set to a
very testy 5 watts.
I used a Radio Shack 273-1380, whichi is 1K ohms to 8 ohms. I hooked
the 8 ohm side to the plug on the PodWave and the 1K ohm side to the
audio amplifier PC board. I outboarded it with leads through holes in
the plastic case. I clipped the center tap on the 1K ohm side. I spent
some time
Anyone have a American Morse Paddle gathering dust in their pile of 'I
never use this thing I should get rid it' ~ Steve/n0tu
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Home: http://mailman.qth.net/mailman/listinfo/qrp-l
Help:
Bill, yet another alternative to consider
if you cannot master iambic keying---exchange your
dual-paddle key for a single-paddle key (Vibroplex
Vibrokeyer, Bencher ST-1, Kent SP-1 or Begali
Simplex Mono). They all work fine with the K2 or
any iambic keyer (although you are not actually
Outstanding condition, with TCXO, gold external fan, manual, mike, and
MARS chip installed (open xmit on all freqs). Has V1.07 software and
60M - does not need update for SSB audio - works well as is. Puts out
full 20 watts.
Would like to trade for K-2 with SSB, ATU and 160M.
73,
Steve,
I wrote:
I believe the supposed efficiency
advantage of iambic keying is a myth. Someone
published an analysis of this within the past year
or two but I cannot find it at the moment.
I found the analysis here:
http://www.morsex.com/pubs/iambicmyth.pdf
Summary:
A scope can be used with a demodulator, (detector) probe to bring the RF
signal and modulation into the audio range of the scope.
Sometimes you do not need perfect triggering on the RF; but it is sufficient
to see the amplitude envelope to tell if you have about the right amount of
RF voltage
Mike, in radar as in QRP, there is no free lunch.
Rest assured any broad spectrum signal can be found. For one thing it
inevitably brings up the noise floor and that can be detected. Good
receivers like the K2, could be helpful in noting such effects from new
radars or BPL use in an area.
I used Iambic keying because I found it smooth and easy and it does involve
fewer paddle movements for many things. Sometimes it cuts the hand motions
by half!
For example, sending CQ involves only eight finger movements in Iambic mode
compared to sixteen movements in conventional keyer mode.
Bill,
Congratulations on getting back into CW. I got into ham radio in the 50's
and used hand keys and bugs for 30 years. I even operated comercially as both
a shore and shipboard radio op. Although CW was my thing, the switch to
iambic keying was not easy for me. Finally after many
I have been following the antenna threads since I started building the KX1.
These experiments are based on that thread, the ARRL Handbook 2004, previous
research into commercial verticals and my own experience.
The goals are to find the best antenna for the KX1 under various operating
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