~~~
N2CQ QRP CONTEST CALENDAR
August 2004
~~~
Summer FOX Hunt - CW:
Every Friday (UTC) through August 20 (UTC) 0100z to 0300z
(9 PM - 11 PM EDT Thurs evening US/Canada)
Elecrafters
I'm at the alignment part III for my K2 #4155. The first step, on 40
mtrs setting Power control for 2 watts and adjusting L1 and L2 for
maximum power out in Tune mode gives me 3 watts. When I change Power
setting first to 5 watts then to 10 watts in Tune mode I get about 6+
and 12+
I've read several responses indicating that verticals are more noise-prone than
dipoles, cf zepps, etc.I live on an average city lot with power lines at
the back, and my experience has been a little different. I've used a Butternut
HF-2V with 16 radials for many years. I've also
I just took #609 along with an old Bencher paddle and the Elecraft balun for a
week of antenna rigging at 9H3BW's Bugibba apartment. I also took enough
wire, ladderline and tools to make a G5RV style dipole on the apartment roof.
Nobody asked to look inside my hand baggage or inside the holdall
Parker, what did you think of the EZNEC gain predictions for verticals?
Compared to wire dipoles at a modest height?
73, George W5YR
Fairview, TX
[EMAIL PROTECTED]
http://www.w5yr.com
- Original Message -
From: Parker Buckley [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent:
Hello all,
Take a look at the two qsl cards I've made to date. If you worked me on
my Delaware Lighthouse Tour, please send a SASE with #10 envelope for
these and the other qsl cards.
Go to my website at www. WA3WSJ. com/files/WA3WSJevents.html to view the
lighthouse qsl cards I've made so far.
I got my K2 for this year's FD, ended up using my
homebrew 3KW transmatch for the balanced-line
antennas.
Felt kinda dumb, this tiny radio on a battery and a
HUGE transmatch, external VSWR bridge, cables..
So, I rushed to build the ATU for the K2 just in time
for the Flight of the Bumblebees
I have a K1 with all options including the 40, 30, 20, and 15 meter four band
board (with blue trimmer caps) and also has a extra two band board set up for
80 and 17 meters. It includes the noise blanker, internal automatic antenna
tuner and internal battery option. It also includes the tilt
One of the amateur radio elders in the UK, Dick G2DYM puts forward the
theory that buildings and presumably power lines are surrounded by an envelope
of
electronic smog. To clear this noise you have to have your antenna mounted
above this noise source or presumably if on the ground well
The rule of thumb is that verticals are noisier because QRN (lightning
crashes, etc.) are generally vertically-polarized. In my experience this is
true on the lower frequency bands (e.g. 160 and 80 meters).
But there are a lot of other types of noise and noise sources. QRN that is
propagated and
George, W5YR writes:
Parker, what did you think of the EZNEC gain predictions for verticals?
Compared to wire dipoles at a modest height?
==
The free space gain of a vertical is about the same as that of a dipole
(2.14 dBi). However, over real ground the horizontal antenna benefits by
Earl,
I agree that's what the model shows and what the theory says. You're
probably assuming the dipole is at least a half wave above ground, which can
be a challenge at lower frequencies. I'm just relating my real world
experiences, and suggesting that the vertical not be dismissed too soon in
Hello Ron,
Your AGC threshold has a huge effect on the range of adjustment of the
RF gain control. If the AGC threshold is set too high - meaning that you
are generally operating with very little AGC action - your RF gain
control will have very little effect. If you lower your threshold,
Elecraft K1 Mods that I am aware of:
(refers to the 2-band K1 several years ago)
VFO linearization--
Attenuator on/off pop
QSK thunk from Andy Wallace and Elecraft Appl. Note.
Sidetone mod from AG5Q and Elecraft
K1 illumination to LCD
These mods were saved text files from Wayne Burdick,
I live in an apartment building in a large city, and I have decided
that basically the only realistic option (besides operating with
stealthy wire antennas) is to mount some form of vertical HF antenna --
and I need to pitch the idea to my landlord, who will obviously have a
few concerns. I'm
Received my 'FingerDimple' kits today for both of my K1's and after
reviewing the 3 instruction steps, clearing a workplace, breaking out
the alcohol (as described in step 1) I began the installation. This has
got to be the most straightforward kit I have ever assembled. No toroids,
no solder
Has anyone tried the 12V 1A linear regulated wall wart from Jameco (part #
170245CL) as a hotel room power supply for the KX1? It is cheap and sounds
like it would work-i.e. not a switcher and regulated.
TNX and
73,
Eric
N0HHS
___
Folks,
I'll be in Hope Town, Abaco, Bahamas from July 30 through Aug 6. BOLO for
NN4CW/C6A.
It's a fishing, lobstering, etc. family trip and I'll try to get on the air
when I can in the evenings and early morning around the qrp watering holes
on 20, 30, and 40.
73/Gil
NN4CW
K2 #3104
KX1 #53
I've got a Rev A K2 (#529) that a friend brought to me to upgrade to all the
Rev B mods ect. Before I did the mods I fixed some problemslow audio
out (bad solder joint) and other minor probs. So before I started the
upgrades it was working.
Here's the problem now. The radio works great
I regret that in my Socratic approach. I failed to make the point I was
trying to make. Specifically that while vertical antennas may have a low
takeoff angle their gain is usually less than that of an isotropic antenna.
For example, look at vert1.ez in EZNEC and you find that its gain is -0.04
Gregg Lengling wrote:
I've got a Rev A K2 (#529) that a friend brought to me to upgrade to all the
Rev B mods ect. Before I did the mods I fixed some problemslow audio
out (bad solder joint) and other minor probs. So before I started the
upgrades it was working.
Here's the problem now.
Ron,
The 'RF Gain' in the K2 is actually an IF gain control and it only controls
the gain after the selective elements. All the stages ahead of the IF
amplifier operate at fixed gain levels.
In many receivers where the RF stage is gain controlled, my experience is
that the gain can be made
Hello Per,
I live in an apartment building in a large city, and I have decided that
basically the only realistic option (besides operating with stealthy
wire antennas) is to mount some form of vertical HF antenna ...
I had the same situation in my apartment. So I solved the problem with a
Here's one that's perfect.
http://www.mtechnologies.com/cup/index.htm
73, Steve WB6RSE
On Jul 28, 2004, at 2:19 PM, Eric Ward wrote:
Has anyone tried the 12V 1A linear regulated wall wart from Jameco
(part #
170245CL) as a hotel room power supply for the KX1? It is cheap and
sounds
like
Gregg,
I would suggest looking carefully in the IF filter area. You found one bad
solder joint, so another one is quite likely. The last one I worked on with
similar problems had a bad solder joint on the SSB board at one of the 3 pin
headers - which reduced the signal getting to the IF
'll be listening on 20 I'm in St. Thomas, Virgins from aug 4 to aug 7th,
on 32 foot yacht , The Morning After, KB7DPC
- Original Message -
From: Gil Stacy [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Wednesday, July 28, 2004 5:48 PM
Subject: [Elecraft] KX1 in the Bahamas
Tom, N0SS, and I are trying to copy KI6WX on 10108 kHz now (0200Z),
then 14062 at 0215Z, then 7040 at 0230Z.
Any help?
tnx
Wayne
N6KR
---
http://www.elecraft.com
___
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Post to: Elecraft@mailman.qth.net
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wayne burdick wrote:
Tom, N0SS, and I are trying to copy KI6WX on 10108 kHz now (0200Z), then
14062 at 0215Z, then 7040 at 0230Z.
I arrived in time for the 0230 sked and heard Tom, but I did not hear John.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
I would approach it in the same way as mounting a large TV antenna on a
chimney stack, though the method used may vary from country to country how to
achieve this.
In the UK, traditionally we use a galvanised stranded steel band (lashing
wire) that passes around the chimney stack which is
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