There is/was one in central Puerto Rico ... flew over it on
way to DX-pedition on Desecheo Island (KP5) a few years ago.
73! Ken Kopp - K0PP
[EMAIL PROTECTED]
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I, too, have been thinking of an enclosure so it is easy to pack and haul
around in the "field". As others pointed out, this is one 'minimodule' that
won't spend all of its time on the workbench.
The next time I'm out and about where small plastic boxes are sold, I'm
going to look for a shallow r
There used to be an elephant cage at Skaggs Is., northeast of the top of
San Pablo Bay in the N. SF Bay area. It's gone now. There was also one
at Clark AB in the Philippines in the mid-60's. Don't know what
happened to it, but if it lasted after the US left Vietnam, it likely
succumbed to M
I really have to agree with this. I would really love to have the W1
configured to fit in a K1 enclosure. I had contemplated buying one but
the lack of an available enclosure stopped me. Also, the board layout
just doesn't lend itself to an easy custom enclosure. I think
configuring the led ban
Howdy Jeff,
If you get on 20 meters in the morning, while you are in the early
morning hours and the operator with whom you are working is in an area
later in the day, you will find some odd occurrences. Some days you hear
better than the other op and some days it is the reverse. The io
Hi Jim,
Making mistakes in building kits are common. When I built my 10th K2, I
still make mistakes. However, tbe beauty of making mistakes is that you
will learn something.
On the other hand, each time you talk to Gary, you will learn more about
the circuity. It is a well rewarding exer
At one point we were talking about loading up the
array in the 'Bullring' at FOSIF Rota, Spain.
Cooler heads prevailed.
73 de W1USN
Mike
-Original Message-
From: Glenn Maclean [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 30, 2006 9:03 PM
To: Elecraft@mailman.qth.net
Subject: [E
Hi Guys,
A friend of mine told me about this and thought I would share it with
the group. Point your Google Earth program to these coordinates:
61.264375
-149.851108334
You will be looking at one of the last remaining
Wullenweber Arrays in the world.
"What is a Wullenweber Array" you migh
Hi Brian,
You do have your grounds in your argument. However, W1 could be a piece of
often used tool in our radio hobbies and highly likely to be used in the
field.
There is still a sector of builders like myself - would like to have a
customised enclosure. I would like to spend more time in
I just put some pictures of a failed K2 headphone jack on my web page,
with a brief explanation of what I think happens.
They can be seen here:
http://www3.ns.sympatico.ca/ppike/k2jack.html
73, Paul -ve1dy-
On 11/30/06, TMorton <[EMAIL PROTECTED]> wrote:
We
changed headsets and that did not
Hey, All.
I put the KAT100 in line this evening and that completes the build. A K2 with
KDSP2, KNB2, K160RX, and KSB2, a KPA100, a KAT100, an XG2, and a DL1. All
working FB. Boy, that little rig is nice. My compliments to the owners and
staff at Elecraft. Special thanks to the marketing fo
Kevin, KD5ONS, wrote:
"One way propagation is not unheard of..."
Is there really such a thing as one-way ionospheric propagation? My intuition
says no, but I don't have the physics knowledge to back it up. On the other
hand, sometimes it sure seems that stations who ought to be able to hear my
Gregg,
If the power display does not indicate any output, it is quite possible that
VRFDET is being pulled down (which will cause the K2 to develop full power
output, and hence your Hi-Cur message).
Check the DC voltage on the ALC THR signal (on the KSB2 board U2 pin 5.
That should remain at a hi
Hello,
I came across this site that has a theory section plus a parts section.
OpAmp Electronics
http://www.opamp-electronics.com/
72 and Thanks,
Ron Polityka
WB3AAL
www.wb3aal.com
www.n3epa.org/
K1 - SN 01011
K2 - SN 01392
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Keith,
I have to agree with you. You hit the nail on the head.
Mike
AI4NS
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First I'd like to thank all of u guys fer pitching in to help me with this
problem. That said, hereis an update. Power out set to 5w, CW mode. K2 works
fine with no SSB brd intstalled. When SSB brd in, on CW xmit, the bar graph
reads no power, the power out at the ant reads abt 10 w, high curre
Richard,
Those numbers are in the ballpark - the exact voltage at U4 pin 1 will
depend on the power output as well as the position of trimmer R1 - if your
R1 is not quite to the center position, that would explain having less than
3 volts. The bridge null is sharp, and if you have a DMM that resp
Kieth,
Certainly one could mount a headphone jack on the back panel - right next
to the extenal speaker jack, but if you want to wire in the resistors and
capacitors and still have the ability to use either a mono or stereo jack,
then the switch that removes the speaker cannot be the normal type
That's what I use on my K2 and my K2 has the original jack from when it was
built in 2000.
My adapter has a right-angle plug that goes into the K2, which serves to
keep it out of my way when reaching for the Audio Gain as well as preventing
side-force caused by bumping the plug. A short length of
I have a question about the KAT2. I just finished building one and am
testing it. The voltage at U4 pin 1 is 2.74 at 5 watts 1.04 at 1 watt and
3.95 at 10 watts. The null dips to a count of 5. Are these numbers good
enough? Or do I need to rewind T1?? I have not installed R6 yet, I was going
to wai
Could the headphone jack be remote? Could a jack be mounted to the back
panel and wired to the headphone jack pads on the circuit board?
That would open up the possibility of using some more robust open frame
switchcraft shorting jacks.
- Keith -
-Original Message-
I just though of a 'c
I wonder how many headphone jack failures are the result of hitting the
headphone plug when the AF Gain control is rotated - the two are quite
close, and yes that jack will not tolerate a lot of lateral motion before
failing.
I just though of a 'cure', wire up a short extension with flexible wire
-Original Message->
From: Ron D'Eau Claire
I surprised that you'd consider my recommendation to read Don's comments
as coming down hard on the RE product.
Don spends a lot of time working with builders here on the reflector who
have problems and I've noticed that a number of those pro
Tom,
Glad to hear the K2 is working good for you otherwise.
The normal problem is the other way around, the speaker does not come on
after removing the headset plug.
Although it could be that the headphone jack contact had failed to open, I
would consider that to be rare. You may want to check
I am on my 3rd jack. I read a suggestion that overheating during
soldering weakens the jack so I was extra careful this time. But I
recently saw a new, profesionally-built K2 that had a broken jack. I
think this problem is more common than was thought.
73,
Leigh/WA5ZNU
__
Hello Tom,
In the CQWW cw contest I operated with K9VV as VP2VVV with K2/100 and
wire antenna. On Saturday afternoon while Fred was operating, I suddenly
could hear the K2 receiver even though Fred was using a headset. We
changed headsets and that did not mute the speaker. I vaguely remember
Hello,
In the CQWW cw contest I operated with K9VV as VP2VVV with K2/100 and
wire antenna. On Saturday afternoon while Fred was operating, I suddenly
could hear the K2 receiver even though Fred was using a headset. We
changed headsets and that did not mute the speaker. I vaguely remember
readi
Actually, folks, you have a couple of options when building the W1 for
packaging.
The on/off switch and LEDs could all be mounted on the back side of the
board, which then becomes a very flat front panel. Or, mount the
battery holder, BNC connectors and binocular toroid on the back, leave
of
> The pin jumpers are available from places like All Electronics for 50
> cents for a 40 pin header. Cut the header into appropriate lengths
> and solder jumper wires and caps/resistors across the correct pins.
> Put the jumpers for the each mod in a small envelope appropriately
> marked and
Keith N1AS wrote:
Wow Don & Ron, I'm shocked.
Such heavy hitters coming down so hard against the Rework Eliminators (RE).
-
I surprised that you'd consider my recommendation to read Don's comments as
coming down hard on the RE product.
D
-Original Message-
From: wayne burdick
> - If the notion of plug-in substitutes for future options
> strongly appeals to you, and you don't mind *carefully*
> following the additional set of instructions that comes with
> them, then by all means consider this method.
This is a KEY point.
The pin jumpers are available from places like All Electronics for 50 cents
for a 40 pin header. Cut the header into appropriate lengths and solder
jumper wires and caps/resistors across the correct pins. Put the jumpers
for the each mod in a small envelope appropriately marked and ready for u
Gary and company have done a very professional job on the
"Eliminators." Some builders will find them useful. On the other hand,
Elecraft's documentation and staging of construction is consistent and
carefully planned, so they are not a necessity.
It's clear that builders can successfully comp
We most definitely use matched sets, Doug. This is required to keep
even-order harmonic content low.
73,
Wayne
N6KR
On Nov 30, 2006, at 7:42 AM, Doug Person wrote:
When comparing prices on the 2SC1969 final transistors (Elecraft's
price is good), I found that RF Parts sells matched sets at a
Wow Don & Ron, I'm shocked.
Such heavy hitters coming down so hard against the Rework Eliminators
(RE).
As a novice builder, I built a bare-bones K2 with full RE. I spent the
time going through the RE instructions and writing changes into the K2
manual prior to beginning the kit. Then I just fo
KPA100 for sale, built and tested, high quality build. I bought it new roughly
a year ago. Works perfectly but I rarely use it - now I'm mostly QRP. $350
shipped within U.S. Includes all docs.
--Andrew, NV1B
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When comparing prices on the 2SC1969 final transistors (Elecraft's price
is good), I found that RF Parts sells matched sets at a bit of a
premium. I was wondering if there is any advantage to matched pairs,
or, why is it that Elecraft doesn't use matched sets of 2SC1969's ?
73, Doug -- K0DXV
Hakan,
You could try
Amidon Associates, INC.
240 Briggs Avenue,
Costa Mesa,
California 92626,
U.S.A.
[EMAIL PROTECTED] Tel + (714) 850 - 4660 FAX +
(714) 850 - 1163
I have bought a fair amount from them and delivery to Scotland or Luxembourg
has always been quick. So
I've been pondering this also. I love Elecraft kits and will no doubt be
purchasing a W1 because it seems that it should have good performance, is
reasonably priced, and I will enjoy building it. That said, I have a BIG
question mark about why they did the packaging design the way they did. It
s
Don wrote:
"... the K2 manual tells you when to install the 'hooks' for these options".
Fully populating the K2 with options following the K2 assembly manual,
results in the need to remove 13 parts (seven jumper wires, three caps, and
three resistors). In six cases other parts (three SIP
According to John/KI6WX
http://www.ac6rm.net/mailarchive/html/elecraft-list/2000-05/msg00781.html
you can get better output on 10 meters by substituting
the regular core of T2 by an Amidon BN-43-302 binocular core.
It does not seems to be possible to get such a core in Sweden.
Does anyone know wh
Tim Raymer's comment is correct. The most common mistake made by a soldering
apprentice is try to have one tip perform all soldering -- that will shorten
tip life. Match the iron's thermal MASS and profile to the joint size.
Hakko, in fact, also adds that placing heavy pressure on the solderin
I have no idea if he's using Elecraft equipment or not, but here's a
chance to work Iraq with yours :-) Forwarded by request--
Forward by request:
From: Mitch Gill [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 28, 2006 4:22 AM
To: [EMAIL PROTECTED]
Subject: QRP Amateur Radio Club Internatio
Agreed. Very different from other mini module kits from Elecraft, W1 is
more often used and mostly likely for portable use in the field.
Therefore, a customise carrying case or enclosure will be very handy and
has market demand.
If any group member has any good suggestions, please enlighten m
To Don and Ron and others:
When I wrote my last post, I was unaware of Don's latest post giving some of
the caveats with regard to the Rework eliminators.
Certainly this is a very timely topic for me-- in the midst of my first K2
build, and following my latest goof (forgetting to install W6 a
This looks like a super accessory, but I am a little concerned about carrying
the bare board around for field use. Is a case for the W1 in the works, or are
there any 3rd party cases you know of that might fit?73,Mike N2HTT
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I just had a very similar problem at a customers K2: Without SSB board but
jumpers and C167 set, all is ok. With build in SSB board ALC sometimes
worked, sometimes not.
The failure was caused by a reversed Diode D2. Even if your Diode is not
reversed, it may have a thermal failure. Also check tra
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