I am in the process of implementing full diversity reception of 2M CW
EME signals.
I will be using 2 each quad arrays of 2M long yagis, One
horizontally polarized and the other vertically polarized. At and
after the antennas' power dividers, there will be installed equal
gain and NF LNAs,
I also suggest that everyone should consider the other shipping options
available.
I chose USPS Priority Mail, and it was significantly cheaper than UPS
Ground.
It pays to look at all the options.
73, Tony K4QE
I consider that all who offer items to sale direct, and usually over
the
Like Fred my hearing loss is associated to my military career, from
standing near V2 and other large rocket firings at WSPG and a 4'
lanyard firing of a 120 mm AA gun, to the firing of very adjacent
155mm howitzers, and other very loud noises etc.
However when later doing very weak signal
Don't you guys have anything better to do than nit pick over a
negligible warm up drift. I don't think that you will be planning to
do any ARRL Frequency Measurement Tests, within the first 10 minutes
of your K3 turn on !
I have bought several 10 MHz DOUBLE Oven Controlled Crystal
In my previous life as the project manger of an RF Equipment Design
Department, that built racks of equipment for the Military and for
NASA, I would not allow BNCs to be used on interconnecting signal
cables, only TNCs or Type Ns. Chassis mounted BNCs and their
attending cables were only used
Dave, N7AIG,
Please define stochastic resonance, a new term for me, which may
apparently aid in weak signal detection.
When I was very active on 2M CW EME, in order to better detect very
weak signals below the noise, I played all kinds of adjustment games
with the CW BW, tone and IF
GPS stabilized 10 MHz crystal oscillators are really an overkill, to
be references for todays transceivers.
A good DOCXO, double ovenized crystal oscillator, is more than
adequate, some even claiming accuracies of 10 parts to the -11th
. I have purchased several, through Internet
FWIW.
Replenishing gasoline that's been depleted by emergency motor
generators may not be as easy as going down to the local Service
Station. Most often if you have lost power, so have they, and not
only will their pumps not work but neither will their cash registers
or credit card
A bit of Believe It Or Not.
As a very young 17 year old, and couple of years after I was first
licensed, I was approached by a LT in the local Naval Reserve and
asked if I wouldn't like to join his unit. After a hesitation on my
part, he explained that he needed someone to each his Radiomen
For those who might be interested, I do have a ICOM PW-1, a SS 160-
6m, 1KW+ output PA, for sale. It will operate similarly to the
KPA500 and KAT500 combo, with automatic band changing and auto
antenna tuning, with its own built in ATU. The unit can be located
remotely and controlled by
A KX3 or any of the K line is not suitable for use on a vehicle that
requires so much concentration, coordination and attention to all
aspects of its operation. Especially a road bike where all of the
fore mentioned is of upmost importance for safety and staying
uninjured and alive.
As
I'm by no means a QRQ CW operator, mainly I use CW for weak signal or
EME QSOs. I was barely able to successfully copy 20 WPM, to upgrade
to Extra Class. I attribute this to not having good CW capabilities
when first licensed 67 years ago, but after many, many, high
concentration, very
I try and use USPS when ever possible as they certainly need the
business ! We have a very friendly and obliging village PO, best
that I've ever used. They don't delivery to my address either, as
it's probably not cost effective to go up a half mile of rutted dirt
road, but instead, they
I got my license it seems like, even before Col. Sanders was even a
Corporal. At the end of my sophomore year in Tucson High School, I
worked all summer, with my cousin, in the crops in the Salem OR.
area. I managed to save up enough money to buy a new NC 173
receiver, which was a new
With all this complaining and extolling the virtues of both the K3
and the 756P 7600 series I would like to say that I'm downsizing
to only K3s. One for HF and one used for EME and as a transverter IF.
So I have to offer: A 756PI and a companion PW-1 to make a 1 KW+,
160 - 6M, transceiver.
Can this cable be used over a distance of 100+ M ?
W7CS
At 10:03 PM 3/22/2014, Wayne Burdick wrote:
Yes, it is possible, and we're working on a special cable for this.
73,
Wayne
N6KR
On Mar 22, 2014, at 8:46 PM, Gary n6...@cox.net wrote:
Bruce,
Did you get any response from Elecraft
Bill, W0WFH,
For more than 20+ years I have been using various sizes of the heavy
duty shrink tubing with the sticky stuff sealant inside.
I've used it on the back shell to coax joints on up to 1 5/8 Heliax,
as well as smaller diameter coaxes. I use another piece to cover the
type N joint
Tim,
I have a space problem similar to yours. I found some used 15
(diagonal measurement) computer monitors that are only 11, or a bit
less, high, if you remove their stand. I figure that my eyes are
still young enough, so that size screen is large enough, if its
directly in front of me
Vic, have you considered a Spider beam ? They are light and small in
diameter and volume. It might fit within the constraints or your
apartment/shack roof top, and wouldn't have to be raised very
high. DXpedition stations seem to favor them.
GL es 73, Chuck W7CS
At one time, I think that I recall, that there was some reference to
a model of this tuner that could be remotely mounted and would be in
a weather resistant enclosure.
My personal philosophy is that this is the best (only?) way to use an
antenna tuner. Now that automated tuners are being
My first experience hearing local AM stations was using an actual
chunk of geranium crystal mounted in a blob of lead, that you'd
traded some of your best agate marbles for, You used the point of a
fine safety pin to scratch around on that chunk of geranium to find
the sweat spot, where the
Yes it most probably was galena, not geranium (wrong spell check
choice !), and the crystal was about 3/8 in diameter, and height,
and maybe mounted in Woods Metal not lead. Many years later, it
seems, my first experience with a semiconductor device, was with an
IN34, crudely built (by
Hi Don and All
IMHO using a GPS disciplined 10 MHz (Trimble etc.) or a Rubidium
standards are unnecessary , expensive and overly complicated
approaches, to be used as the K3XREF 10 MHz external source.
There are extremely stable (as high as 10 x-12th) Double Oven
Controlled Xtal Oscillators
Since the E team hasn't yet put a P10 or P6/10 out for Beta testing,
and probably won't for some time, might I suggest an excellent alternative.
Advanced Receiver Research produces a whole series of pre-amps or
LNAs from 0.1 MHz to over 900 MHz. If you are in need of a 10M one,
they have a
Keith,
Snow boards are for young kids and slow boomers. I'll be 81 this ski
season, and refuse to put my skis away, I still enjoy a spring day
at Mammoth as well as at Sunrise (a miniature Mammoth) here in AZ,
where my age lets me ski free. Dave McCoy at Mammoth won't give that
privilege
Sorry for getting into this thread so late, but couldn't resist any longer.
Boy when I took my first exam, I don't think that they had cameras,
let alone photo IDs. I don't think that they had them on my USNR ID
card, that I received a few years later when I was 17.
In Tucson the FCC
I think that the external or internal locking to a stable 10 MHz
source is probably of a higher priority for UHF and Microwave users,
as well as JT65 and other EME'rs, than a less than highly stable
internal 2M xvrtr. A small, external phase locked LO, 2M xvrtr box
or module, that can be
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Yes Gary I fondly (?) remember those days ! You also had to carry a
spare fuel pump to overcome vapor lock out here in the dessert, on hot days.
You can still buy those dimmer foot switches in auto parts
stores. They are usually behind the counter and are listed as a
replacement for certain
I concur with W2KJ and AB7E. I served with the military and a second
career as a development engineer and program manger for a large
aerospace company, for almost 45 years. TBD has always been known
as To Be Determined. This has been used, with this meaning, long
before most computer
A big thanks to all who took the time away from speculating when they
would win the KX3 lottery and receive their prize, to help me resolve
my dilemma, and overcome my procrastination.
The response was tremendous both on and off the reflector, and I was
greatly encouraged to learn of so many
Hi Guys Gals,
I'm finally overcoming my procrastination (and ego) and am going to
be getting some hearing aids. Finally the many explosions that my
ears were exposed to, during my military career, from large AA guns
(90 120 MM), experimental large ground to ground and ground to air
guided
Hi Guys Gals,
I can't resist inserting a bit of self depreciating humor.
For those of you who were familiar with and used the Collins A series
receivers, you may also recall the Chrysler Automobile lug
nuts. These had to be turned clockwise to loosen them, counter to
most other
Before Wayne or Eric cuts this topic off, I'd like offer a bit of humor.
In the 70's when the cold war wasn't, between two middle east
countries, i worked for an aerospace company in Silicon Valley that
had a large equipment design and installation contract with one of
them. One of our other
To John and all the Old Timers with their great historical stories.
My three high school buddies and I were studying the code and theory
for our Ham licenses under a great mentor, our AZ SCM. Tucson was in
the never, never land that only got visited no more than twice a year
by the FCC
After the first reading of the installation instructions, I
procrastinated for some time before attempting the installation of
the Sub RX and a couple of other options (K3EXREF KAT3).
It seemed as if one would have take the K3 almost all apart to
undertake this installation. However I'd
Dave and Johnny others interested,
Resending what I sent to this reflector a bit ago. I indicated that
I'd ordered more. These I received in not much over a week, which is
quite good delivery.
For those who are looking for a high stability 10MHz reference for
your K3EXREF K3 modification,
I operated on 6M with my K3/P3 combo several hours this W/E, and
didn't experience any birdies or a drifting wide band one. I was
also using the PR6 preamp.
Could it possibly be that the installation of the sub-rcvr, KXR3, be
causing some K3 instabilities, by its physical proximity over the
Hi All,
Just a little plug for USPS. Their Priority Flat Rate service is
very good and is by far the best rate if, your shipment will qualify.
As an example, just this week I shipped a package in their medium
sized container(box about 12x10x 6) to a S.E. US address that
ended up being quite
I'm old enough that when I learned to drive, there were no automatic
transmissions, and left foot clutch operation was the rule, as well
as on the floor headlight dimmer switches.
I would think that a floor mounted foot switch, preferably one with
alternate action capability, could put the now
For those who are looking for a high stability 10MHz reference for
your K3EXREF K3 modification, I'll recommend, for me has been, a
reliable and cost effective source.
I have a previously purchased a double oven 10 MHz OCXO source, with
an advertised 10 to the -12th short term stability from
It sounds like it may have the possibility to be great VHF/UHF
Microwave IF system. However it would need a true phase lock
capability (option) to be driven by an external high stability 10 MHz source.
Also to have an optional interface box to drive a high resolution
small to medium sized
Wayne, Eric,
I'm referring to some concerns described by inputs to the Elecraft
Reflector, about not only the stability but also L.O. calibration of
the 2 M xvrtr, K144XV and probably the XV144. I wonder if in the
near future you might consider phase locking their L.O.s to a 10 MHz
OCXO. I
Ed's reference to weak signal copying is probably different than any
of you have ever experienced, with or without QRM.
He's concerned about copying off the moon, EME, signals that are just
above but mostly just below ESP level in a sky noise environment.
My experience, in listening for, and
As a recent K3/P3 kit assemblier(4910) and an old timer (licenced in
'47). I'm still trying to understand all the nuiances of the K3
operation. Thank you, the Elecraft Reflector, for all the good ideas and help.
But as I understand it, the quote of the HF DX'rs is Life is too
short for QRP,
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