I thought of feeding the coax inputs of two small tuners (like the MFJ16010)
from the output of a 1:1 balun (like the BL1). Use banana plugs to connect
the balun output to the center pin of the input coax connector. Connect the
tuner grounds together and - presto - a balanced tuner! This may work
Thanks to Elecraft for the new mini modules. I will add them to the growing
arsenal of Elecraft test equipment.
I will try not to confuse the Elecraft WM1 with the Autek Research WM-1 that
I also have.
73,
John W2XS.
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Tom Hammond has great instructions on the use of Spectrogram to align
filters. He describes how to make a cable to connect the rig to the
soundcard.
When I first got my K2 (used), I had some initial confusion about the
external speaker jack and the tip, ring, and sleeve connections.
The
The K2 has better overall performance and many more features. But the
Triton can hold its own under most conditions, at least on the non-WARC
bands.
The Triton is fine for rag chewing and some contest work. It helps to keep
the RF Gain control down a bit if the bands are crowded. The CW filters
The first time I saw the term passband tuning was on the Collins 75A4
receiver. It shifted the BFO in one direction and the main PTO in the other
direction. The two were linked together with a mechanical strap. The idea
was that the pitch of the received signal would not change nor would the
The KX1 has a variable selectivity control. Narrowing up the bandpass is a
nice thing to be able to do continuously. Would that be easier to implement
than the IF Shift function? I would like that feature on the K2.
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I have an early K2 and an early KX1. My vote for a one-QRP-rig-only is for
the bare-bones K2 for the following reasons:
More power output when you want it. There is a lot of difference between 2W
and 10W but not that much between 10W and 100W (in my opinion)
All bands 80 to 10.
Not that much
I have an R-4A which is about the same as the R-4B in most respects. I
would say that the performance is very good, but not as good as the K2 in
several areas.
(I also had the original R-4, and it is also about the same in performance.
The differences between the R-4, A, and B are the number of
Just to add my $0.02. I have s/n 1116 and have done only the volume control
mod (which is in all newer units). I do intend to (eventually) make it a rev
B unit but, even as it is, it works great, and I have made hundreds of QSOs
with it on all bands at different times in good and bad band
I had a problem with 17 meters (or so I thought) where the receiver was
deaf. What had happened was that I must have accidentally pressed ant 2
and the K2 remembered that setting on that band. (The KAT2 is installed).
72, John W2XS
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Elecraft
I was thinking about Tom's (K2TA) suggestion about using a K1-9 over a K2.
For battery operation, I might agree. The K1 and the KX1 are more
battery-friendly and really work well.
For portable operation where an AC outlet is available, I think some of the
features of the K2 are so incredibly
I have had excellent results since last summer with the 28-foot Jackite
pole. It has held up the center of a 40m inverted vee fed with twinlead and
has been tied to many wood decks with bungee cords. It takes only a few
minutes to put up and take down and is much stronger than the SD-20 pole
that
I use a small 12V 4A switching supply similar to a laptop supply. I see a
3A version on the BG Micro website for under $8.
www dot bgmicro dot com and look for power supplies.
I cannot vouch for this unit, but the one I use has been very convenient,
especially for portable use. Mine has a small
I bought the BL2 PC board (E100253) and the switch (E640019) and removed the
components from the BL1 and mounted them on the BL2 board. I now have a BL1
with switchable 4:1 or 1:1 operation.
Then I took my K2 out to our vacation house and set up my portable antenna -
a 40 meter inverted vee fed
Telephone: 631-423-3232 x 416
Toll Free: 800-835-3298 x 416
FAX: 631-385-8184
jmeade AT telebytebroadband DOT com
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I also received my hex key paddle cover from Ernesto. It looks nice on the
desk.
73,
John W2XS
John Meade
Telebyte Broadband
270 Pulaski Road
Greenlawn, NY 11740-1616
Telephone: 631-423-3232 x 416
Toll Free: 800-835-3298 x 416
FAX: 631-385-8184
[EMAIL PROTECTED]
I used the Unitrode UC3906-based A A charger.
www dot a-aengineering dot com
They have a QRP special with two switch positions. I put my switch on the
rear panel (set for 1A and 0.25A)
The eHam.net reviews have been favorable and I use it for Gel Cell batteries
from 2AH to 7AH.
72,
John
I bought the Degen 1103 from that supplier on eBay, and it has many nice
features. But I notice a lot of audio distortion, especially at low volume.
Is my radio unique in this regard? The vendor was of no help - he suggested
that I do a reset which did not change anything.
73,
John W2XS
I have been patiently waiting 2 months for my HexKey cover from Ernesto. He
just told me that he will ship it out this week. I hope so!
[EMAIL PROTECTED] (email)
www dot cwkeysdustcovers dot com
73,
John W2XS
HexKey #113
KX1 #15
Balun (2)
XG1
N-gen
BL1
DL1
3 resonate wires mated on 3 banana plugs will eliminate the need for the
KXAT1
I'll add my $0.02 here. If you use a 1/4-wave radiator (33' on 40m) then
you need a 1/4-wave radial system. I say system because you should use
4 radial wires to make effective vertical antenna with elevated radials.
And I hope it can be added to the KX1 firmware as well.
IMHO, once you get used to the auto character space feature, it is hard to
go back to a keyer without that option. That is why I still use the
original CMOS Super Keyer 1 from the 1980's. Like the WB4VVF Accukeyer, it
allows smooth sending
I was by no means criticizing any other auto tuner with the Auto Tuner Wish
List, including Elecraft's. The reason for the wish list in the first place
was to express the desire for a BALANCED tuner - by design - not an
unbalanced tuner by design with a balun on the output. I am sure the KAT100
I forgot to mention that the foam that I used for the 45 degree stand is
antistatic. (I work in an electronics manufacturing environment). Thanks to
Paul W0RW for pointing that out, and for suggesting that conductive foam may
shed small particles.
John W2XS
KX1 #15
Last weekend I had the opportunity to hook up 2 different portable antennas
and try a comparison on the air. The 2 antennas were a 42-foot wire (with
32-foot counterpoise) and a 300-ohm twinlead-fed inverted V for 40m
supported by one of those SD20 fishing poles from World Radio.
The rig was
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