Hi all,
I finally fixed the problems I was having on the 160m alignment. I
could not get 10W no matter how I tried. Thanks go to Don, W3FPR and
Bob, G3VVT for their ideas. In the end, I did not seem to be getting
any joy when tuning L3 and L4. L4 I could peak but nothing seemed to be
happening
Agree that the 60db/6db shape factor is an essential indicator of a filter's
selectivity performance. But the filter's rsponse above the 6db points is
also very important if you want a good sounding SSB signal, or a Rx's SSB
filter that can really dig in a pile-up. If the filter's skirts come up
Glad you found it Ian.
That again substantiates the advuse to builders who encounter a problem -
check soldering, and then re-check soldering. Then when you have finished,
check the soldering!!! Remember, the circuits do work as designed and
component failure is rare.
73,
Don W3FPR
-
We all need to say in which manual something is or is not found.
I was searching (with Adobe) K2 manual rev E.pdf, Don references, and you
were building using, K2 manual rev F.pdf. The great thing about these
manuals online is that they are vector rather than graphic so the search
works even on
First of all sorry to all for the incomplete email. Somehow, not all my
message was being sent the last two times.. I think I got it straightend out now
I finaelecraftelecraftlly got a zero beat on the www 10mhz signal and the K2
display reads 1000 at the beat tone.
I had some problems
On: Saturday, November 13, 2004 6:20 PM
W3FPR - Don Wilhelm [EMAIL PROTECTED]
wrote:
...
Don't throw that resistor away yet!!! Yes, I agree that Acrobat Reader is
useful for stuff like that, BUT ...
Check the 3rd step on page 15 of your Rev F manual - you will see that R22
82k is placed
Dan,
Set the power at 6 watts, then adjust the audio drive so you get 5 watts
output. You can also watch the ALC, with the ALC/RF on ALC. It should
just begin to flicker on the far right hand side. Press and hold ANT 1/2
and TUNE to read power forward power/reflected power. The display
Most of the issues you address are seen in the sweep. The problem that
all the content and implications of the sweep can't be put in a 42 or
45 character item name in a catalog. Where there is a picture in a
catalog, the sweep curve would be more meaningful than a picture of
the filter itself.
In a painfully slow, round-about way, I'm getting a Cebik 44' doublet
put up. I'm curious if anyone is familiar with the ICE brand of
lightning arrestors
(http://www.arraysolutions.com/Products/ice/impulse1.html#2)?
I'm familiar with PolyPhaser products, too, but the ICE equipment sounds
Hello again Guy,
Fair comment. As far as the commercial issues are concerned I could not
agree more. I would add to the wish list the supply of real impedance
information especially around the bandpass edge frequencies where the
filter's port impedances will gyrate like mad, and not just the
Mike and all,
The Wireman www.thewireman.com lists both the ICE balanced line arrestor and
their CQ brand. I have used the CQ brand for some time now - it is a simple
spark gap type (like the gap on a spark plug - in fact, this arrestor does
use 2 spark plugs). You COULD build your own with
I haven't used that arrester but looking at the specs I see that it's
designed for an impedance range of 300 to 600 ohms. That is, a typical open
wire line working at a low SWR. That is NOT the case with a Cerbik
doublet. Your Cerbik doublet will show impedances at various points along
the feeders
Mike:
I've had an ICE model 309 for just about 9 years now. It's been outside
all that time and, other than the label getting faded, it looks as good
as new. I have it attached to a 64 ft. doublet with ladder line and
have put up to 100 watts through it many times, but not since I finished
Folks,
I don't think LB would be happy with that extra 'r' in his name G.
For those interested in the 44 ft. doublet and its radiation patterns, go to
LBs website www.cebik.com - you will find a LOT of good information on
antennas there. Also look at his article in the December issue of QST
Hi,
I finally decided how to divide the inside of my Pelican model 1500
carying case for the K2 purpose.
Everything is there... ready to go... !!!
See my photos for more details:
http://homepage.mac.com/jfmenard/PhotoAlbum29.html
I use the K2 PA top instead of the standard top I'm be
Starting at 2354z with NE5DL there were a number of folks stopping by
ECN/1. The band was not too bad because I worked a KX1 from Hawaii. But
some of the folks in the Eastern part of the Midwest were tough to
extremely tough. I did get a partial on KI8JM until the QSB dragged him
up. I am
Thanks for the replies, fellas. I had overlooked the impedance range of
the arrestor; LB's figures show 2, possibly 3 bands out of range of the
arrestor with his computer model. With my luck, it would be more like 5
or 6 bands ;-)
I may instead go with a simpler spark plug model, just to
Good Evening,
It was fun to hear from you all again this evening. I am very curious
about what Bill is up to but I'll get more later :) 2 inches of snow
definitely had my interest piqued. Propagation was unpredictable. Tom in
Missouri was weak but Dan in Georgia was much better than he
I've come to the Alignment and Test, Part II. I think I'm having a problem
under the BFO test.
Following the instructions, I switch to 40m, hook up the frequency counter
to TP2, and get a reading of 4913.52. The manual says I should get
something between 4908 and 4918. So far, so good.
Jason,
Yes, 2456 kHz IS way too low - in fact it is quite out-of -bounds - and is
close to only half the frequency that it should be.
First thing to check is soldering, then re-check the soldering, and when you
are finished, check soldering again. Use the schematic to identify those
It looks like the counter is only registering half the frequency and it's
really at 4912 kHz.
I don't think it's physically possible for the BFO to oscillate down there.
Certainly not under crystal control. C22 won't vary your counter time base
enough to cause anything like that sort of error.
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