Wayne N6KR wrote:
...what you
described won't work very well, because both wires need to be about 33
feet long at this frequency. By cutting one 33-foot piece of wire in
half, you've made a 20-meter antenna :)
A modeling program like EZNEC predicts that a 33-foot center
Dear all,
I ran through the K2 filter aligment considering all your tipps and
tricks. I also adjuest the reference oscillator
on the control board again. My filter bandwidths are 1.5 kHz, 700 Hz,
500 Hz and 200 Hz (Filter FL1 to FL4).
I have used Spectrogram to align the filters. The settings
In a message dated 6/17/05 2:12:37 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
Wayne N6KR wrote:
...what you
described won't work very well, because both wires need to be about 33
feet long at this frequency. By cutting one 33-foot piece of wire in
half, you've made a 20-meter
Martin,
There are 2 parameters to consider when making the filter settings - 1) the
width of the filter, and 2) the BFO setting.
It is the BFO setting that will change the position of the passband. You
apparently have the BFO setting incorrect.
Use a noise source rather than a signal when
Matt,
If tuning L1 and L2 do not procuce peaks within about 3 turns from the top
there is something wrong. The most probable thing is that the capacitors in
the bandpass circuit are the wrong value. Check C5 and C7 (100 pf - 101),
C4 and C8 (820 pf - 821) and C6 (4.7 pf). My first guess is
Martin:
The Elecraft K2 CW filters are a bit unusual in that, as you 'narrow' the
passband, only one side of the xtal passband moves much. Thus, as you
narrow the passband, the center freq will shift inward a bit with each
narrowing of the passband.
Take a look at the illustration of the
The issue only seems to present itself when I power off
the KX1 then later power it on. It also seems to only
happen when I am running on external power, but leave the
power plug plugged in with both the KX1 and the power
supply off. If I turn off the KX1 but leave the power
supply on, it
Ha! Matt, now that you've added the statement about turning power off, I
think I know what you are experiencing. See
http://qrp.kd4ab.org/2004/040101/0036.html . If you tap the BAND switch
once before powering off, I expect your KX1 _will_ remember the frequency.
Cheers,
Frank
PA4N
KX1 #1166
Jim N2EY wrote:
On 40 meters, the feedpoint impedance will look like a resistance of a few
ohms and a reactance of several hundred ohms or more. Will the matching
network
be able to handle that, and do it without undue loss?
The impedance at the center of a 33
Mike,
I would like to point out 2 things - first as others have indicated, a 33
ft. wire will be resonant somewhere near 20 meters - for 40 meters, it
should be about twice that long, and if you do not have a tuner, it should
be pruned to resonance because the KX1 will not perform well unless the
Ah ha! That sounds like exactly what is happening. Good
sluthing! I will check it out more fully in a bit, but I
believe that you have pointed me to the solution.
Thanks a million.
Matt - K7OE
On Fri, 17 Jun 2005 17:00:35 +0200
Frank R. Oppedijk [EMAIL PROTECTED] wrote:
Ha! Matt, now
Tim, NZ8J writes:
Due to circumstances beyond my control I find myself with 5 or 6 weeks of
VERY idle time on my hands. I've pretty much decided to order a K2 with
some accessories in the next day or so and work my way through it.
Tim:
I'll assume to speak for others on this reflector, and I
We must have over 1000 KX1's out there now and
i am not seeing an increase in the number of Pedestrian Mobiles on the air.
Mike VE3WMB is on frequently... but we need you too...
The Fox logs are not showing any increase either...
How about it KX1 guys Start walking.
Get an old CB whip,
K2 #1568 v2.01f firmware,
KAF2 Audio Filter / Real Time Clock
KSB2 SSB Adapter, wired for Yaesu mic. using wire wrap
KIO2 RS-232 Adapter w/cable
KNB2 Noise Blanker
100 w amplifier in top.
Manual for both K2 and Elecraft 100 amplifier.
Microphone not
Tim,
Congratulations on your decision.
I am not familiar with either one of those solder designations, but I would
believe that you will do better on the K2 with a smaller diameter solder - I
use 0.020 or 0.015 diameter. With the thinner solder, you can more easily
control how much solder is
Your email has inspired me! I will try to get out this weekend and see if I
can make any contacts. I do have an old CB antenna and will try to make it
work. I use my KX1 mostly when I travel. Guess I need to change my thinking.
Thanks for the push
Aron
NN1F
Bedford, NH
FP#122
-Original
Just to add my .02c...
I was on the air on my KX1 last night, with a 25' longwire
and 16' radial. Didn't hear a thing from Washington
State(re: the Fox).
Matt - K7OE
On Fri, 17 Jun 2005 13:34:50 EDT
[EMAIL PROTECTED] wrote:
We must have over 1000 KX1's out there now and
i am not seeing
How about it KX1 guys Start walking.
Get an old CB whip, stick it in your pocket
Paul,
I'm with you -- in fact I may even try a pedestrian mobile FD effort
this year.
But I've been meaning to ask you to clarify how you put the antenna in
your pocket. What comes to mind is a
Connecting to your ant with coax.
True story. (maybe a little too long. You can jump
way down to the paragraph labeled - The Practical Lesson):
I built the KX1 (20/40m) and the ATU per the manual. Then
built the vertical that Wayne suggest in the ATU manual;
about 30ft vertical (some
How about some photo's Paul, so we can all see how it's done!
Aron
NN1F
Bedford, NH
FP#122
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of wayne burdick
Sent: Friday, June 17, 2005 2:59 PM
To: [EMAIL PROTECTED]
Cc: elecraft@mailman.qth.net
Subject:
[EMAIL PROTECTED] wrote:
I rummaged around in my junque box and found a 42ft length
of coax with BNC connectors on each end. I made up an
Replacing 15ft of coaxial with 42ft typically reduces SWR due to coaxial
line losses. Putting 420 ft instead of 42 ft makes situation better when
But I've been meaning to ask you to clarify how you put the antenna in
your pocket. What comes to mind is a whip that easily flops over
while you're walking. Which pocket? How deep is it? How do you keep it
secure?
Wayne
N6KR
my importantly, how do walk around dragging a ground
With Paul and Eric on KX1's this FD I don't stand a chance of
duplicating my success from last year -- I was #2 in the whole Pacific
Division in category 1B1B!
Here's how it happened: After helping out at PAArA's FD setting up PSK31
at the GOTA station, I came home, went out with my KX1,
Hello guys,
When I connect my K2 to a dummy load, the S-meter will lit up with one
LED but *only* on USB mode when in receive.
The SSBA is set to 2
I did go through the S-meter alignment procedure but it didn't help.
Any suggestions what this could be?
Second
How good is the Elecraft
Pretty good explaination. I'll only add that the formula of 468/f already has
a correction factor involved as the real formula is 492/f (for lenth in feet
of a half wavelenth with frequency given in MHz). So, using 492/f and the
proper velocity factor depending on type of dielectric you
Hi Wayne.
i am going to be up on Pikes Peak for field day, hiking the trail
It should be great... i will have my KX1 along too...
i have my whip attached to a thin board, (a free paint stirrer from H. Depot).
The thin board goes in my rear pocket and i usually wear a vest and the
antenna
goes
The pedestrian mobile drag wire actually stays directly behind you and never
gets in the way.
When i am trying to work DX, i will stop and sling the drag wire around and
point it
at the DX station to decrease my antenna loss.
The single drag wire counterpoise is directive.
Paul w0rw
On Fri, 17 Jun 2005 [EMAIL PROTECTED] wrote:
But I've been meaning to ask you to clarify how you put the antenna in
your pocket. What comes to mind is a whip that easily flops over
while you're walking. Which pocket? How deep is it? How do you keep it
secure?
my importantly, how do walk
i think there are some KX1 photos on the PRC319 Yahoogroup, under photos
w0rw,
'KX1'.
or send me a request and i will send you a pix of me and the KX1.
Paul w0rw
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Post to: Elecraft@mailman.qth.net
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Thanks, Don. I've checked the capacitors and they are all correct
(doesn't mean I didn't cook one though).
I've ordered the N-Gen noise generator and the XG-1 oscillator from
Elecraft. Looks like I'll get a chance to work with Spectrogram and
see what the signals look like.
The Marines trained
I plan to operate from a local summit this Saturday evening/night (18th) using
my K2 #2724.
This mountain is called Pen Llithrig y Wrach (hill of the slippery witch!)
and qualifies for the summits on the air programme (www.sota.org.uk) as
GW/NW-013. Its location is in the Snowdonia
When i am trying to work DX, i will stop and sling the drag wire around
and
point it
at the DX station to decrease my antenna loss.
The single drag wire counterpoise is directive.
Paul w0rw
---
This guy is dangerous! Hope I hear
Evert PA2KW asked:
When I connect my K2 to a dummy load, the S-meter will lit up with one
LED but *only* on USB mode when in receive.
The SSBA is set to 2
I did go through the S-meter alignment procedure but it didn't help. Any
suggestions what this could be?
Second
How good is the Elecraft
Evening Paul:
Thanks for the really nice photo. I am hoping to spend several hours
tomorrow afternoon working on getting some /PM contacts with my KX1. I may
head over to the park down the street where my son likes to go on the jungle
gym stuff. I will try to post before I head over there.
Thanks
Only a comment on the NB
I can only get my NB to make a difference when certain kinds of noise are
exposed to it. The click igniter on my gas stove makes a noise that the
blanker can noticeably reduce. However a stick blender and a sewing machine
do not. I am convinced that the blanker works
Ladies and gentlemen,
I proudly announce my first contact (SSB) with K2 serial number 4950.
I have been playing around with it this afternoon, familiarizing myself
with the rig, and had answered a few CQs with no contact resulting, when
I heard SV9CVY on 20 Meters working them one after the
Greetings to the list,
I have been given the privilege to build a KX1 for a friend of mine and will be
monitoring this list for hints, suggestions, etc. for the build. Two years ago
I built a K2 kit and was very pleased with the results and look forward to
building this kit.
The serial number
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