You are right, Grant.
Only this mail landed in my KX2 folder that normally when read, is
emptied for I have no KX2... You typed inadvertently XK3 in the subject
line. I have created filters that scan for types of Elecraft products
and sorts them in the proper folders.
This mail from Wayne, h
Bruce,
I had the same problem a while ago, but instead of just replacing the
diodes, I installed some machined IC socket pins in the PWB (i.e. pins from
a Mill-Max IC socket), then put the diodes in those. That way, if they
have to be replaced again, it's a "no-solder" job that can be performe
I'm looking at this splitter to set up diversity for my K3s. It will only
be connected to RX paths.
https://www.minicircuits.com/WebStore/dashboard.html?model=ZSC-2-1BR%2B
It goes down to 100Khz and up to 400Mhz.
BNC connections and a rear bracket make it fit well with my setup.
Anyone see a pr
Jim,
I don't understand how that will help with diversity.
You need two antennas that are oriented differently - usually one for
horizontal polarization and the other for vertical polarization.
One is connected to the subRX AUX antenna connection and the other
connects to the main RX. If the
I'm selling my K2. Has the following installed:
KAT2 - Automatic Antenna Tuner
KIO2 - AUX I/O Module (with serial cable for CAT control)
KSB2 - Single Side Band
K160RX - 160m and 2nd Antenna Option
KNB2 - Noise Blanker
KAF2 - audio filter and real-time clock (clock needs a battery)
Kenwood MC-42S M
Jim may be wanting to use a RX antenna (to use as an RX antenna connected to
the RX ANT input) at times plus wanting to use it at other times for diversity
connected to the AUX RF BNC input.
I can't tell you anything about that splitter, though.
Cheers,
Fred KE7X
For all KE7X book, see www.k
Hi Jim.
I have the PSC-4-6+ which I put in my own enclosure. I use that together
with the DX-Engineering preamp.
Before that I was using the DX-Engineering 2-port splitter but I needed
more ports, i.e. this one https://www.dxengineering.com/parts/dxe-rsc-2 .
The MiniCircuits one works fine.They a
Don,
As always, thank you for that detailed information. I do have a set of
2.04r firmware to install as I go through my A-to-B mod list.
Best regards,
Mike M.
KU4QO
On Fri, Nov 3, 2017 at 9:39 AM, Don Wilhelm wrote:
> Mike,
>
> Order the SMT1B - PIN diode on carrier board p/n E120014 from Elecr
WOW ! More than 10 thousand... incredible !
Mine is only 2767 :-)
Congrats and welcome to the club!
Have fun !
Ciao, Graziano IW2NOY
> Il 5 novembre 2017 alle 1.33 JT Croteau ha scritto:
>
>
> I know this doesn't mean much to anyone but me but I've wanted one for
> so long. Just received KX
Hi All:
It looks like we took an EMP hit at home from nearby lightning just last
night. The XYL was up with the baby and said the whole house lit up
sometime after midnight. So far, it appears I've lost a TV, laser printer,
the shack PC, all the outdoor security cameras, and my internet service.
I get no diversity benefit from using the same antenna. I get huge results
using a full wave 160mtr loop, and a sloper antenna.
Leroy AB7CE
-Original Message-
From: Yngvi (TF3Y)
Sent: Monday, November 06, 2017 8:47 AM
To: Jim Miller
Cc: Elecraft Reflector
Subject: Re: [Elecraft] Min
When I post to the Elecraft list I get the line
[This sender failed our fraud detection checks and may not be who they appear
to be. Learn about spoofing at http://aka.ms/LearnAboutSpoofing]
added to the start of the email.
My list subscription has my correct email address. Anybody know what
On Nov 6, 2017, at 5:13 AM, Jim Miller wrote:
I'm looking at this splitter to set up diversity for my K3s. It will only
be connected to RX paths.
No splitter necessary. Just "wire-or" the RX-IN and AUX-RF-IN together.
RX-ANT > OFF + SUB > HOLD to turn Diversity ON.
This assum
I'll try this first. Block diagrams are a bit confusing. I'll study.
Thanks
jim ab3cv
On Mon, Nov 6, 2017 at 11:20 AM, wrote:
>
> On Nov 6, 2017, at 5:13 AM, Jim Miller wrote:
>
> I'm looking at this splitter to set up diversity for my K3s. It will only
> be connected to RX paths.
> -
HiEmail spam and fraud detection is getting more and more intrusive. You may
feel that your email address is immune but it's not the address that causes the
issue but the underlying MX records that the recipient system is detecting and
then based on reputation, processing according to its algori
Several (MANY) years ago I had a similar occurrence. A nearby strike. A desk
side computer, printer, and external disk drive, that were NOT ‘plugged in’,
damaged beyond economical repair by the currents induced in the interconnecting
cables of the three units. The “look and smell test” gave n
An interesting factoid - the 12v rail on the K3 finals is powered even
when you turn the radio off. Thus, a power spike on the mains could get
into the radio.
Best practice is to disconnect everything when not in use.
Buck, k4ia
Honor Roll
8BDXCC
EasyWayHamBooks.com
On 11/6/2017 10:59 AM, Ch
Based on the serial number series of my K3S, I think the series' starts
with 1. Mine is an early one which is s/n 10163. I would be
surprised if they started with serial number 1.
73
Bob, K4TAX
On 11/6/2017 9:58 AM, Graziano Roccon wrote:
WOW ! More than 10 thousand... incredible !
M
Mini-Circuits is a very good, well-established US company based in
Brooklyn, I think. For many years, I specified their 1x4 75 ohm
splitters to distribute RX antennas for the wireless mic systems I
designed for large performance spaces. I'm using some I found at a
hamfest flea market to distri
And that rule on disconnect everythingincludes not only
antennas, but any ground path to the outside world.
Remember, all lightning protection MUST be implemented outside of the
structure. AND all driven grounds MUST be bonded together on the
outside of the structure. This is per NEC
I'm just guessing, but the K3S probably started at 10K (or some value
above ~ 8K) to avoid any confusion with the existing K3.
Mark AD5SS
On Mon, Nov 6, 2017 at 11:05 AM, Bob McGraw K4TAX wrote:
> Based on the serial number series of my K3S, I think the series' starts with
> 1. Mine is a
On 11/6/2017 8:54 AM, Buck wrote:
Best practice is to disconnect everything when not in use.
NO, best practice is proper bonding of all equipment, AND to avoid the
use of shunt-mode (MOV) surge protectors to protect equipment. Study
N0AX's new ARRL book on the topic, or download and study the
That is correct Mark. K3S serial numbers started at 1 to avoid confusion
with the K3.
Mark, WB9CIF
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Bayern
Sent: Monday, November 6, 2017 5:17 PM
To: Bob McGraw K4TAX
What does a KX3 serial no. have to do with where the K3s numbers started? :-)
> On Nov 6, 2017, at 12:16 PM, Mark Bayern wrote:
>
> I'm just guessing, but the K3S probably started at 10K (or some value
> above ~ 8K) to avoid any confusion with the existing K3.
>
> Mark AD5SS
>
>
> On Mon, No
John,
You should have gotten an e-mail confirming your order. I did.
The website says shipment will start mid-November. This could change of
course. It has already changed twice.
73,
Mark, WB9CIF
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qt
As someone who ran a good-sized mail system for over a decade, I would
argue that the best way to stay clear of fraud is to avoid large mail
systems, GMail, AOL, Yahoo, GoDaddy, etc.
The vast majority of the trash I see comes from free accounts on those
services. Second is poorly secured corp
All of our products normally start with S/N 1 and go up one at a time. So
there really are over 10,000 KX3s in existence, for which we thank our loyal
customers.
The K3S was an exception to the S/N rule. We were up to S/N 9950 or so on the
K3 and decided to make the jump to 1 to highlig
On 11/6/2017 10:54, Buck wrote:
Best practice is to disconnect everything when not in use.
I agree. While good bonding and protection devices can help, a large
enough or close enough strike can still damage equipment.
I set up my station with a panel at which all antennas and control
cable
I tried to set up the N3FJP logging program to use with Sweep Stakes this
past weekend and was unable to make the software key the radio (i.e.
Win4K3Suite). Do I need a keying interface between the computer and the K3S
or do I have an incorrect software setting?
Thanks from a not too computer
Hi,
Yes you need a keying interface.
This link gives a few options. IMHO, having a WinKey is best
http://www.n3fjp.com/cwschematic.html
73
-Original Message-
From: marvwhee...@nwlink.com
Sent: Monday, November 6, 2017 2:46 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] N3FJP log
Hi Marv,
Try N1MM Logger Plus. It's an excellent program, it's free, and it keys
the radio just fine. Just be sure to study the "Getting Started" part
of the manual, and refer to the more detailed parts of the manual for
questions.
From a 76 year-old who's been using computers since the ear
I looked at the link and opened the Data Sheet.
Splitter loss goes from about 3.2 to 4.0 dB in each arm (if
terminated) depending on frequency. Assuming use only on HF up to
30-MHz, 3.2 dB. Isolation of ports is above 25.99 dB which should
not result in any crosstalk problems (more an issue i
On 11/6/2017 11:58 AM, Jim Brown wrote:
was unable to make the software key the radio (i.e.
Win4K3Suite).
Just saw this. Is it possible that Win4K3Suite is getting in the way?
Contest loggers generally want to be the only software talking to the
radio.
73, Jim K9YC
Is that any different than your basic cable splitter other than it has BNC
and not F connectors?
Mike
On Mon, Nov 6, 2017 at 3:02 PM, Edward R Cole wrote:
> I looked at the link and opened the Data Sheet.
> Splitter loss goes from about 3.2 to 4.0 dB in each arm (if terminated)
> depending on
Win4K3 virtual ports do not support DTR and RTS keying.
However there are many other ways to do so, including software PTT (if the
software supports it), a serial port keyer, or WinKey.
73 Tom
va2fsq.com
-Original Message-
From: Jim Brown
Sent: Monday, November 6, 2017 3:12 PM
To: ele
Yep, the K3S did start at 10K, I think they jumped about 1000 units to start
with the new MSD, AND like the subject says, the KX3 is at 10k+ units, but I
don't think they skipped any numbers, I could be wrong though, but itlooks to
be the highest produced radio of the Elecraft line!
73 - Arni
Sorry for bandwidth. I think the failure message is originating in the univ
system here. Thanks for all the replies and advice, though.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman
I have to brag a little, I have KX3 SN 00020 (matches my K2 and K3).
It was the first one shipped from the production line. Elecraft had a
choice of sending me a prototype or my KX3 for the Raleigh, NC hamfest,
and they chose to send mine.
73,
Don W3FPR
On 11/6/2017 10:58 AM, Graziano Roccon
Hi,
Well yes. I would not trust the Cable TV splitters to be any good below
30MHz. They are not designed for frequencies that low. Specs are typically
unavailable. As Jim says, Mini-Circuits is a very very reputable US brand
that has been around, well, forever. They cost a lot more but there are
p
Hi Don,
KX3 SN 6 here, though I'm more excited about over 10,000 units shipped!
SN 6 is NOT a production unit, but was used for Field Test as the KX3
matured...
73,
Matt W6NIA
On 11/6/2017 12:36 PM, Don Wilhelm wrote:
I have to brag a little, I have KX3 SN 00020 (matches my K2 and K3)
No -- the Mini-Circuits splitters provide significant isolation between
the ports so that, for example, a local oscillator on one port isn't fed
to the other port(s). The degree of this is the dB spec for isolation.
73, Jim K9YC
On 11/6/2017 12:21 PM, Michael Walker wrote:
Is that any differe
I'm going to sweep one just to see what it looks like below 30mhz.
Mike
On Mon, Nov 6, 2017 at 3:42 PM, ab2tc wrote:
> Hi,
>
> Well yes. I would not trust the Cable TV splitters to be any good below
> 30MHz. They are not designed for frequencies that low. Specs are typically
> unavailable. As
OK, I'll bite: Why not?
On 11/6/2017 10:22 AM, Jim Brown wrote:
... AND to avoid the use of shunt-mode (MOV) surge protectors to protect
equipment.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
When tuning using a KAT500 from an ICOM via an AH-4 interface what is the
actual radiated power out the antenna? I was reading that ICOM's AH-4 tuner
itself takes the input power and splits it into an internal dummy load and only
radiates something like 300mW out the antenna, is the KAT500 comp
On 11/6/2017 12:42 PM, ab2tc wrote:
would you really like to use "F" connectors in the
shack? I wouldn't.
Actually, F connectors are widely used with RX antennas and RX antenna
products, and are the best method to terminate the CATV cables widely
used for our RX antennas. It IS, however, impo
On 11/6/2017 1:17 PM, Wes Stewart wrote:
OK, I'll bite: Why not?
See the Power and Grounding stuff on my website.
73, Jim
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/m
We could use a few volunteers to help test the latest KX3 firmware. Please
email me if you’re interested.
See release notes below.
73,
Wayne
N6KR
* * *
KX3 MCU 2.82 / DSP 1.52, 11-6-2017
* SIDETONE VOLUME CAN BE SET LOWER: MON=1 is now about 12 dB lower in volume
than it was originally. MO
Erik,
The KAT500 relies on the transceiver power being reduced when tuning.
I am not certain how (or if) that happens with an Icom transceiver, but
the KAT500 needs about 20 watts for reliable tuning.
That can happen automatically with the K3/K3S/KPA500 combination, but I
don't know what the Ic
I understand the requirements, and the ICOM IC-7300 puts out 12.5W by default
(can be adjusted via service menus). I'm looking for a definitive answer as to
the actual radiated power. Like I said, the ICOM AH-4 tuner specifies its
actual radiated antenna power but the KAT500 does not so that's
Erik,
I don't know the workings of the Icom tuner, but the KAT500 needs 20
watts input to tune. All of that goes to the antenna.
If part of that signal would be shunted to a dummy load, I don't think
it would be tuned to the correct antenna impedance.
I would have to know more about the conf
I’m sure there are others with more expertise on this subject then me, however
several texts including the new ARRL grounding book say it may be dangerous to
disconnect antenna coax in the house. It should only be done outside.
My daughters vertical was hit by lightening and the lightening leap
N3FJP will not use a com port for more than one function. Either keying or CAT
control.
Sent from my iPhone
...nr4c. bill
> On Nov 6, 2017, at 2:46 PM,
> wrote:
>
> I tried to set up the N3FJP logging program to use with Sweep Stakes this
> past weekend and was unable to make the software
Use n1mm+
Sent from my iPhone
...nr4c. bill
> On Nov 6, 2017, at 2:51 PM, Tom wrote:
>
> Hi,
> Yes you need a keying interface.
> This link gives a few options. IMHO, having a WinKey is best
> http://www.n3fjp.com/cwschematic.html
> 73
>
> -Original Message- From: marvwhee...@nwlin
I haven't looked at Jim's web site recently enough to remember
his reasons, but here is mine.
We had a shunt mode MOV "protected" power strip at our family
house in New Hampshire. My cousin was using a high power vacuum
while painting. The power strip started smoking and he quickly
threw it o
My KAT500 [when I still had it] put out variable power levels while it
was tuning. When it was tuned, it put out the TUNE power [25 W] into
the antenna. More than once, someone called QRZ? after tuning in a
clear spot. They probably saw my little signal on a fairly dead band on
a panadapter.
And don't forget that the isolation spec assumes a perfectd 50-ohm
termination on all ports. For example if one of the ports is seeing a
load with a 10 dB return loss, then the isolation will be no better than
10 dB.
Alan N1AL
On 2017-11-06 13:06, Jim Brown wrote:
> No -- the Mini-Circuits sp
I'm old enough to remember, as a kid, people of my grandparent's age worried
that the electric "juice" would leak out of unused sockets.
73, Ron AC7AC
-Original Message-
This whole incident didn't help in my campaign to convince my cousin that
electricity is really safe and you don'
I can get and hook up a power meter, still looking for a definitive answer
maybe from Wayne and Eric. If it puts out the full tuning power that is going
into it (e.g. 10-20W) then I want to shift away from any signals I’m trying to
tune to (rude to step on conversations), but if it’s using a lo
Nearly every direct strike will fry something (or manythings), connected
or not. An arc that could involve a kilometer or two probably isn't
going to be deterred by a meter or so of disconnected coax. The
grandson of my Elmer in the early 50's [who now holds his Grandpa's
call] became a light
Assuming your antennas are stable, you should only need to go through the tune
process once. The KAT500 will remember the proper settings for each frequency
segment (see the manual for the size of the segments on each band) and will
instantly return to those values at the first hint of rf. So
Ken K6MR wrote:
> The KAT500 will remember the proper settings for each frequency segment
> (see the manual for the size of the segments on each band) and will
> instantly return to those values at the first hint of rf.
Does it remember one set of settings for each segment or does it remember
d
OK, Let's talk about the isolation charteristics of just transformer splitters
and REAL HP/LP duplexers. With splitters, I think you are subject to mismatch
isolation problems if the loads are not matched. Same with Duplexers, but most
desighs allow for some matching, at least the ones I desig
Right. Or 75 ohms for 75 ohm splitters and systems. I always specified
low loss CATV RG6 for wireless mic systems, and most ham RX systems are
designed around 75 ohms. The reason is simple -- we can buy much better
75 ohm cables at much lower prices than what we would have to pay for 50
ohm ca
I've trained my KPA500 to remember the solutions at 20 KC increments across
each band, starting at 10 KC from bottom. Works well.
Sent from my iPhone
...nr4c. bill
> On Nov 6, 2017, at 7:52 PM, E T wrote:
>
> I can get and hook up a power meter, still looking for a definitive answer
> maybe
I know the training process, have done it many times on all my tuners, the KX3
and KX2 built-in, KXPA100, also an MFJ-993B and KAT500. And no, I currently do
not have the K3 and the cables to transmit band switching. But even after
training I find that all of these will occasionally perform a
Must be some magic going on in the AH-4. It specifies “Tuning power required:
5-15 watts”.Would be interesting to know where the other 14.7 watts is
going. I’m pretty sure the KAT-500 doesn’t have anything like that.
The other thing you can do with the KAT-500 is specify when a tune sequen
I agree that disconnecting the coax from the antenna inside the house is
a bad idea. All my cables from antennas are permanently connected to a
well-grounded and bonded panel in the shack. I disconnect the coax and
control cables from that panel to the radio. Now, if the tower takes a
direct
Yep, 1000ft of RG11 direct burial for $100 on Amazon. Good enough for HF
on any day.
Mike va3mw
On Mon, Nov 6, 2017 at 8:24 PM, Jim Brown wrote:
> Right. Or 75 ohms for 75 ohm splitters and systems. I always specified
> low loss CATV RG6 for wireless mic systems, and most ham RX systems are
This was the reason I originally dropped N3FJP for any sort of contest
use many years ago. The software won't allow you to key the rig and
control other functions via the same port, and N3FJP refused to even
consider addressing that. Best thing that ever happened, though,
because after I sw
A technique that works well using a dummy load to adjust a tuner is to
set up a bridge configuration where the dummy load absorbs the power and
the tuner is used to balance the bridge. Once done the dummy load is
switched out and rig drives the tuner. Electric Radio use to sell a
bridge like
Sorry to hear, Chuck. I had a similar indirect hit in September and I'm
still recovering. My K3 lost its serial port, as did the P3. They seem to
be working fine now after replacing those boards. A big issue in lightning
damage repair is complete testing. If you aren't using your serial port (or
AC
Hi Group:
Well, now and then I'm disappointed that I don't have a permanent shack.
However, after hearing some of those lightning stories there's certainly an
additional plus side to being a portable-only QRP operator. All my gear is
disconnected from the AC mains, don't have any antenna
I know personally (not FOF) of one death due to a hanging RF cable, in
this case a cb antenna. Don't just leave the lead to your antenna
hanging. I use very inexpensive switches from epay that have a grounded
off.
MOV devices only absorb a finite, unpredictable, number of hits. In
other words
Erik, I think your question has been answered, several times ... as I
said once, and will tell you once more, my KAT put 25 W into the antenna
connector when it had finished tuning. While it was tuning, the power
varied. Note: 25 W in with it tuned yielded 25 W out [less losses my
power meas
Yes I would like to try it.
nagra...@comcast.net
Sent via the Samsung GALAXY S®4, an AT&T 4G LTE smartphone
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post:
The AH-4 inserts an internal 16 dB attenuator between the radio and the
tuner network during the tuning mode. After the match is resolved the
attenuator is switched out of the signal path. This assures the radio
will always see a near 50 ohm load.
73
Bob, K4TAX
On 11/6/2017 7:52 PM, Ken K
Another thing to consider when trying not to QRM others while the ATU is
tuning: The signal can be pretty broad when the relays are switching.
73,
Scott K9MA
--
Scott K9MA
k...@sdellington.us
__
Elecraft mailing list
Home: http://
Don't set to auto tune. Use semi or manual whatever your ATU calls it so the it
doesn't retune on its own.
Sent from my iPhone
...nr4c. bill
> On Nov 6, 2017, at 8:52 PM, Ken K6MR wrote:
>
> Must be some magic going on in the AH-4. It specifies “Tuning power
> required: 5-15 watts”.Wou
I'm trying to avoid taking anyone's side on this discussion. I wanted to say
that I worked for a company that had towers throughout the state which were
several hundred feet tall. Over the years, I only saw one that took a hit.
The company was so certain their grounding specs had not been fo
I had a direct lightning strike this summer in July. It has also caused
fire that created more damage then lightning itself. The interesting
thing is that lightning hit not the 20 m tall grounded telescopic mast
that had no antenna (it was down for service), but rather metal roof of
a shed that
Bummer. I have been disconnecting and
unplugging for years. Thought I had it
covered when I saw storms coming in on the
radar. The next day the radio and the P3
was dead when I plugged the power strip in
although the PS was working and everything
else fired up.
Couldn't get TV and I couldn'
I have several series mode surge protectors. They are big, heavy and
more expensive but have none of the limitations of MOV sacrificial shunt
devices.
I would get rid of any older MOV-based surge protection devices that are
lying around. They have been known to burn. The newer ones are suppose
82 matches
Mail list logo