Ed,
There is a FAR better way. Check out the design by VK4YB on his QRZ
page. It's a brilliant design, and works great, enabling him to set the
distance record on the band (in 2017, I think). The key element of the
design are dimensions that carefully place the current maxima in the 120
ft
On 3/7/2023 7:38 PM, AB2E Darrell wrote:
Are there any issues using this with a K3?
Not that I know of, Darrell, although there are a bunch of options
covered in the manual. Should be on the website. W6GJB and I have been
using a pair of KRC2s that N6RNO built to switch filter sets in his
Couple comments:
Vertical radials: I put up a top-loaded (very) short vertical for 630m
(475-KHz). Top "hat" was two parallel 130-foot horizontal wires and
vertical was three parallel wires 43-foot long (inverted-L). Used a BIG
base loading coil but needed radials that normally would be
From: Jim Brown mailto:j...@audiosystemsgroup.com> >
I think one of the the half-wave designed verticals Jim is thinking of is
the Cushcraft R8 and/or R9. MFJ now manufactures these antennas, but I have
one of the "original" models, and it worked very well for me -considering it
was
Hi all,
I picked up a KRC2 Band Decoder.
Are there any issues using this with a K3?
Does the stock DB9 cable to the rig need to be rewired for the K3?
I want to hook it up for FD with a bandpass filter set.
If anyone is using it with a K3 please email offlist.
Thanks and 73,
Darrell AB2E
> Regarding the question about KX3-->KXPA100-->KPA1500: Be careful. All
> amplifiers generate some distortion that wasn't present at the input. Each
> succeeding amplifier amplifies that distortion.
There are a couple of interesting articles here that discuss the design,
construction and
Hi,
In anticipation of the upcoming (warmer) POTA season, I'm looking for a T1
Tuner that some generous soul might be willing to part with. It looks like
it's going to be a long wait to purchase one from Elecraft, so if you have
one you'd like to sell, please let me know. You can contact me
Speaker has sold pending funds.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 3/7/23 10:50, Dave (NK7Z) wrote:
Hello,
Sold my K3, and got a K4, so I have an Elecraft SP3 for
AF5LQ wrote, "Unable to call anyone, especially on Elecraft 80 m Sunday
nets."
In mild dissent to several of the replies ... from very savvy folks ...
one of the truly enlightening things that J. C. Maxwell worked out back
in the 19th century was, "If you can get alternating current to flow
Hello,
Sold my K3, and got a K4, so I have an Elecraft SP3 for sale, 8 to 9 out
of 10 for condition, 100% working. Slight scratching at rear top of case.
See photos at:
https://www.nk7z.net/sp3-sale/
$225.00 shipped to your CONUS address via USPS.
First person that says I'll take it via
I still haven’t received contact yet about the items I had ordered in April
2020 other than the original purchase confirmation.
I had ordered both a new synthesizer upgrade and a general coverage bandpass
filter.
Could the delay in hearing anything be waiting on both kits to become available
6 replies in minutes. Thanks guys.
Don
At 08:44 AM 3/7/2023, Don Greenbaum wrote:
Got the SP4 for my K4D today. So I can put the SP3 in the closet for the
rest of my life (next to other elecraft radios and accessories) or put it
out for sale since Elecraft no longer makes them.
$125 plus
Hello Elecraft Owners.
I have earlyer som failure with the RS232 port on my old K3 with KIO3
board.
The K3/0- mini runs in TERM mode when the K3 is ''cold'', in room temp
it works ok.
At U1,, pin 8 the voltage runs from +0.4vdc to - 2.4 vdc in approx 5
minutes.
REPLACED THE Q1 WITH
I wish I had waited. I ordered a SP4 to add to my K3S so I could
use the split capability and DIVERSITY with mine.
It would not work with one speaker.
And now you have to wait to get just about anything; but, I did
get mine. And it was not cheap.
Enjoy
"ZUT"
de John Paul // AB4PP
On Tue, Mar
Got the SP4 for my K4D today. So I can put the SP3 in the closet for the
rest of my life (next to other elecraft radios and accessories) or put it
out for sale since Elecraft no longer makes them.
$125 plus shipping.
Don
N1DG
Duxbury, MA 02332
On 3/6/2023 2:08 PM, Jim Brown wrote:
Most (but not all) verticals need radials to transmit a decent signal. A
vertical that needs radials is a lousy TX antenna without them.
To expand on this -- the BTV-series, the Butternut and a few others use
various forms of traps and resonators that
On 3/6/2023 9:27 PM, Eric Norris wrote:
ON4UN's book, Guide to Low-Band DXing, has an excellent chapter on
verticals.
Yes, another quite useful resource on many topics. Its focus is 40-160M.
In addition to antennas and radial systems/counterpoises, it sheds a lot
of light on topography, as
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