Has anybody tried to build a KX1 for 20 and 15m? Is it even possible? If so,
please contact me off-list and let me know what's involved.
Thanks and 73,
Eric WD6DBM
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Sorry, that is not exactly what the current regulation says. The
following is taken from the Electronic Code of Federal Regulations,
current as of January 06, 2014: Here is a link to that document:
*http://tinyurl.com/lf7qqyk*
Quote:
§97.315 Certification of external RF power
This is spin off of the JARD certification thread. Regarding FCC
type acceptance: CFR-47: 97.315
As a general disclaimer FCC regs are written legalese language which
is almost impossible to completely translate to common language and logic.
97.315, b) Any external RF power amplifier or
Jim,
Thanks for the updated regs. My copy of CFR-47 is admittedly dated.
But comparing the two I do not see a substantial
difference in what the regulations say. The
language has been streamlined a bit and
minimized. I left out some detail to try keeping
the main statements clear. I
As the original poster under this heading I figured you might be interested
to know what I have achieved so far, even though I am not yet ready to send
the white smoke up the chimney. Briefly, my problem was that my KAT500
would go into uncommanded tunes during a QSO, usually on digital modes.The
Hi Ray.
The OCF antennas are know to cause RF in the shack, and RF in the shack quite
often result in strange behaviour from the radio equipment.
A choke balun may work, but a current balun with ferrite is far better.
Try to install 10-12 ferrites snap-ons on you're feedline as close to the
Ray,
Very interesting stuff, thanks. As the user of an off-center fed doublet
myself, I was initially very nervous of running more than my usual 100W.
As it happened, I need not have worried, as I have never experienced the
problems you describe with the arrival of the KPA/KAT500. The reason
Hi.
Interesting comment, from a country that restricts the import of non FCC
certified Ham gear themselves. :)
73.
Dave G0WBX.
PS: The CE mark (for what it's worth) covers the entire European Economic
Area, a huge potential userbase. (And getting huge'er too. But that's another
I don't believe it is an antenna or stray RF problem.
I have memorized tuner settings for the entire 75 meter band at 20 kc
steps. The K-Line is set up per instructions (although the manual
supplied by Elecraft is a little thin).
When I QSY, the KAT500 will click to a memory when I transmit
If I may, I would like to weigh jn here wjth what I have been using.
I put up an OCF of 137ft approximately (memory issue) with the feed point
up about 37ft. I am set at 80/20 offset and I am using the dual core balun
from Balun Designs (usual denials...yada yada yada) and I have very few
issues
It's time to let go my Elecraft KX1 4 bands (S/N:2284)
It has the following options installed:
KXB3080
(80,30 Meters);
Internal tuner (KXAT1);
Morse Key KXPD1 paddle include.
It was build by me in 2012, it's aligned and in fully working condition with
minor use marks.
I am asking 350 EUR
I was wondering the same thing up until yesterday. I'm a nobody, just a
customer, not a field tester or manual writer. If it's any help, I
placed my kit order about 30min after pre-orders started. I received my
order confirmation e-mail last night and it should be shipping in the
next
This is an inquiry I sent to Elecraft, along with their response:
I’ve been considering adding the K3XREF to my K3. Can you tell me if the device
listed in this link is a suitable 10MHz source? (Re: Navsync CW12-TIM GPS
Timing Module. Price and technical details at the link:)
Thank you for follow-up comments.
In case of minor change, the firmware change needs no recertification.
A great improvement in transmission requires the recertification.
For example, KX-3 became allowed to transmit FM and AM after the first lot.
Equipment with ESSB mode over 3 kHz width
On 1/8/2014 3:24 AM, Martin Storli - LA8OKA wrote:
The OCF antennas are know to cause RF in the shack, and RF in the shack quite
often result in strange behaviour from the radio equipment.
Correct. Because they are badly unbalanced, they also pick up lots of
RX noise.
A choke balun may
If Howard is correct on the output level, it's a little low for the
K3EXREF's input. From the manual:
Connect the external 10 MHz signal source to the K3 rear panel REF.
connector. The 10 MHz source should have a signal level between +4 dBm
and +16 dBm, nominal. For square wave sources, 2VDC to
Small correction below.
On Wed, 08 Jan 2014 08:21:37 -0800, you wrote:
If Howard is correct on the output level, it's a little low for the
K3EXREF's input. From the manual:
Quote
Connect the external 10 MHz signal source to the K3 rear panel REF.
connector. The 10 MHz source should have a
For sale K3 S/N 6459.
Includes: ATU Module, RX Ant., IF out and Xverter Interface, and 6kHz 8 Pole
filter.
Like new condition with latest updates.
Original cost $2587.62. Sell for $2200 shipped to conus.
Please reply to wb4...@earthlink.net
Thanks, Don WB4DON
I was one of the beta testers on the K3EXREF. I am using a surplus
OCXO bought for about $45 on e-bay. Its output was a distorted
sinewave (appears to have strong second harmonic). I removed the
harmonic by running the 10-MHz thru a DEMI model 10-4 distribution
amp that uses 10-MHz bandpass
Hi All
Just seen a smart idea at CES 2014, a micro power supply 65W wall plug style
and dream one day to see a 12v/20A (240+W or so) wallplug switching PS
eventually build-in my K3. Yeah I know filtering and harmonics could be an
issue (there are good solutions this days) but when you have to
Greetings to the list. I seem to have a problem with the sub receiver in my
K3. I think the problem is between my ears and I am at wits end.
The sub receiver works fine on several bands (80 40 20) but does NOT seem to
be working on 10 160 15. Haven't checked the WARC bands. I have checked
Here's what I use for travel. Only thing I changed was the output plug to
PowerPoles...
http://www.gammaresearch.net/hps-1a.html
73 Jeff KB2M
- Original Message -
From: VE3GNO Daniel yo3...@yahoo.com
To: Matt Zilmer mzil...@roadrunner.com, Jon Noxon j...@noxon.cc,
Eric wrote:
Has anybody tried to build a KX1 for 20 and 15m? Is it even possible?
It's pretty close to being impossible.
The heart of the KX1 is an AD9834 direct digital synthesis (DDS) chip.
The maximum frequency that DDS chip must generate cleanly is the RF
operating frequency plus the IF,
On 1/8/2014 12:43 AM, Edward R Cole wrote:
This is spin off of the JARD certification thread. Regarding FCC
type acceptance: CFR-47: 97.315
First of all, there no longer is such thing as type acceptance. See
FCC Rules Part 2 Subpart J for current equipment authorization requirements.
External
Hi, I offer my KX3F-2548, KXAT3, KXBC3, KX3-PCT, XG50 kit, Radio Temp Comp
calibrated and WSJT-9 ready. I also have a like new TenTec 405 amp included
ONLY with radio. Offline for negotiations PLEASE.
Bob w7wo
b...@kalkwarf.com
__
Ken has one 700 Hz 8-pole K3 filter remaining, from what may well be the
last production run.
To purchase it, please visit http://www.unpcbs.com/
73,
Gary KI4GGX
(webmaster)
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An OCF is an unbalanced antenna and it must have a choke to keep RF off
the feed line into the shack. I use about ten turns of coax on a 4 inch
PVC pipe right outside the wall where the feed comes into the house. It
might be more or less, I am not at home to look. You can research it.
Other
I have used OCF antennas in the past and currently have on up that is
fed with 600 ohm line and a balun for the coax transition to come in the
house. It is a fine all band - 160-10 - antenna causing no RF problems
in my shack. Although I rarely use this antenna, I hooked it up today
and find
Here is what I use. 12.8 VDC 29A $45.
http://www.lightobject.com/Electronics-C13.aspx
Mel, K6KBE
On Wednesday, January 8, 2014 11:14 AM, k...@comcast.net k...@comcast.net
wrote:
Here's what I use for travel. Only thing I changed was the output plug to
PowerPoles...
For those with interest:
The museum ship USS SLATER in Albany, NY is the very last of 563
destroyer escorts built during World War II that remains afloat in
America. It's been restored to 1945 condition and represents a real
piece of history.
For years, the amateur station has limped
Last week I was working DX quickly mostly on 10/12m going back and forth for
needed bands. After several hours I noticed my gain bar on the amp was to
the bottom of the scale zero power out. I reset the amp (Alpha 9500) and
tried again same then checked the radio zero output but still showing the
My, how nice! I'd be honored to contribute my dust covers for the
stations equipment.
Ken has one of Tony's beautiful ZN9's that I can use as a manikin to make a
cover for it if you'd like.
What other equipment needs covers? Of course Ill need to know what you'd
like in the way of fabric
Stan,
If that K2/100 ever needs repair or servicing, I will make the same
offer I do to blind hams - no labor charge, only parts and shipping.
73,
Don W3FPR
On 1/8/2014 6:04 PM, stan levandowski wrote:
For those with interest:
The museum ship USS SLATER in Albany, NY is the very last of
If you are working the bands 30m and below and have the room you can
use inverted V antennas that all have the same feed point. The power
will be distributed to the the antenna that is resonent at the
transmit frequency.
Until I was able to get room and funds for rotable antennas and
longer wire
Greetings,
I guess this question is more gear towards Don, but I was curious was the
outcome of the wounded warrior ham was? Was he able to get on the air? And
if so, is it possible to get his call? I'd love to work him one day!
73,
Steve KS6PD
KX3 #3604
USMC 1998-2004
Semper Fidelis
Guess I should have included Sent from my iPhone. Please excuse errors and
typos. Guess that's what I get for not proof reading...
73,
Steve
On Wednesday, January 8, 2014, Stephen Selberg wrote:
Greetings,
I guess this question is more gear towards Don, but I was curious was the
outcome
I ordered a KPXA100 kit on June 17th with expectations, at that time, of an
October delivery. I was beginning to think maybe it was October 2014. I love
the Elecraft products and know that they want to get it right the first time.
That seems to happen most of the time, or at least it's close
Steve and all,
The wounded warrior is Sean Hughes KF5WMK. Yes, thanks to the
contributions of several generous hams and Elecraft he was able to get
on the air at the 100 watt level.
He was working on his general class license the last I heard, but if you
hear him on the air (even if only
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