Howdy fellow Elecrafters.
Would like to get in contact with anyone out there who has interfaced a Cumbria
Designs X-Lock VFO stabilizer with a K1.
73, Joe W2KJ
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Joe,
I have not tried it, but Davbe G4AON has written a paper on his
installation. You can see it at
http://www.cumbriadesigns.co.uk/images/X-Lock%20K1/X-Lock_K1.pdf.
It looks straightforward enough to me. I would think you would have to
adjust the VFO range after installation, but that is
Oh no -- I'm not yet done with my K1, it appears.
I wondered why the pdf file below showed no photos
with the mounting of the board in the K1; then I
read For the time being it is working perfectly
while wrapped in bubble wrap! :-)
73, Phil W7OX
On 10/17/14, 7:21 AM, Don Wilhelm wrote:
Phil,
Scroll down a bit and you will see the photos - unless you have
something lacking in the .pdf viewer in your browser - in that case,
download the link by right clicking and choose save file as then open
it with Adobe Reader.
73,
Don W3FPR
On 10/17/2014 11:12 AM, Phil Wheeler wrote:
I noticed the same thing that Phil did. Three photos show up. Not one of
them shows the X-Lock in or out of bubble wrap. The hookup photos were
less interesting to me at this point than how he was able to stuff it in
the K1.
Eric
KE6US
On 10/17/2014 8:28 AM, Don Wilhelm wrote:
Phil,
Scroll
Hi.
I have noticed that the K1 and Sierra rcvrs are very similar (as 602 based
designs). The main difference is imo that the Sierra has a MC1350 IF amp
(as has the K2 btw) followed by an LM386, but the K1 seems to do all
amplification after XFIL on AF frequencies using LM386+LM380.
Could/have
Since you consider yourself as an RF tinkerer, it sounds like an interesting
experiment. Since the technology in the K1 predates my interest in Elecraft,
probably the up to date inclusions in the Sierra were not available when the K1
was designed 20 years or so ago. The K3 design is not
I assume anyone interested in this topic is reading all the
post...so, I randomly chose Brian's post to reply to:
First off, I read a lot of theorizing about the K3 TCXO's and The
K3EXREF. I was a field tester of the EXREF and have had it in
operation continuously since installing it...what
... probably the up to date inclusions in the Sierra were not available
when the K1 was designed 20 years or so ago...
The Sierra predates the K1. The NE602 mixer and MC1350 IF amp was in common
use long before the Sierra was designed and even longer before Elecraft was
formed. Elecraft used
Just moved and my K3 needs a new antenna. My only option is to run a wire
antenna over my roof--I have about 110-120 feet to play with and I can get one
end up off the ground 25 feet and the center and other end about 35 feet. Any
ideas? Or references to an antenna group that can help? Thanks
A doublet. Center fed with either 600 ohm or 450 ohm ladder line, a 4:1 balun
close to your shack and as short a length of coax from the balun to your K3 as
possible. Using a tuner (either the K3 internal or an external), you will be
able to work 80 through 10 meters, and possibly six meters.
Alpha Delta LB-PLUS. they are tough and work great
George, W6GF
On Friday, October 17, 2014 1:45 PM, david beckwith david.beckw...@att.net
wrote:
Just moved and my K3 needs a new antenna. My only option is to run a wire
antenna over my roof--I have about 110-120 feet to play with and
Dave,
I have a K3 (#7360) with ATU and 347 ft. long wire 30 ft height. It
tunes up ok but performance is questionable. This same antenna performs
better with my external MFJ tuner.
Larry W7IN
On 10/17/2014 20:45, david beckwith wrote:
Just moved and my K3 needs a new antenna. My only option
Dave,
Make it a balanced dipole antenna (equal lengths on either side of the
feedpoint) for best efforts in keeping RF off the feedline. The actual
length does not matter a lot, but it should be greater than 80% of the
half wavelength for the lowest band of interest.
Use open wire line or
Thank you for the explanation.
From: Edward R Cole kl...@acsalaska.net
To: Elecraft@mailman.qth.net
Sent: Friday, October 17, 2014 3:17 PM
Subject: Re: [Elecraft] A new Elecraft product?
I assume anyone interested in this topic is reading all the
post...so, I randomly chose
Don pretty much described my low band antenna. Full Disclosure: I live
on 5 acres and have a 70' tower. That said, it is a Sloping V [I'd call
it an inverted V except is isn't resonant on any band], about 210' on a
side from the top of the tower. 450 ohm window line to the bottom of
the
...were not available when the K1 was designed 20 years or so ago.
That's a pretty fanciful date to just pick out of thin air! :-)
There wasn't anything that was Elecraft 20 years ago. The K1 was shown
first at Dayton 2000, after which many of us ordered one. The first
deliveries to the mass
More history - Elecraft was formally created July of 1998. (We began working on
the K2 design well before that.)
We shipped the first 100 K2 Field Test Units January and Feb. of 1999. We took
orders for production K2 kits at Dayton in May of 1999.
We followed that with the K1, then the KX1,
Fred is right about the 450-ohm stuff getting funky in wet weather. Cause my
tuners to do the clicky-click dance whenever it rains here, although we've been
pretty dry the past few years. Because of this, I plan on replacing my 450-ohm
line with 600-ohm ladder line in a couple weeks. I had the
In a dry climate, ladder line is fine, but good coax has low losses, too, and
is less fussy about being run next to the gutters.
It is rare for a dipole to be perfectly balanced (thanks to near field objects
like houses), so a high-quality current balun at the antenna can really help
reject
Well ... Thanks for the history. One can also look at Elecraft's website
http://www.elecraft.com/about_elecraft.htm
But my question remains: Why did the (very early) Sierra and the (first
Elecraft product) K2 have IF amp (MC1350 - and of course the standard AF
amp LM386), but the K1 was
Roy,
I think one of the reasons for the change from the MC1350 to the NE612
followed by the LM386 was due to the fact that when the K1 was designed,
the MC1350 in its DIP format was not to be used for current designs.
Yes, the MC1350 is still available in SMD format, and Elecraft has
Yep - the K2 uses LM380, but the Sierra uses only an LM386 as headphone
amp. My ill formulated sentence. But it doesn't matter - its all AF dBs.
My point is that the Sierra and the K2 uses an IF amp MC1350 before the
product detector 602 (612, NE, SA ...), and gets a 'proper' AGC. The K2 is
of
Hmm .. so where is the KX2, Eric? :-)
73, Phil W7OX
On 10/17/14, 6:34 PM, Eric Swartz - WA6HHQ,
Elecraft wrote:
More history - Elecraft was formally created
July of 1998. (We began working on the K2 design
well before that.)
We shipped the first 100 K2 Field Test Units
January and Feb. of
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