Can anyone identify why some PL259s do not fit some SO239s ? There is a
distinct difference in thread. I have never known Ns not to fit properly,
but there appear to be 2 types of PL/SO out there.
David
G3UNA
- Original Message -
From: "Ron D'Eau Claire" <[EMAIL PROTECTED]>
To: "'
I'd say that is "cost effective" design as long as the user is aware of the
limitations. If speech compression is used extensively, then the average
current will rise and the psu might fold back to protect itself.
Interesting idea, certainly good for cw. Lightweight is good for
dxpeditions.
On Fri, 20 Apr 2007 19:32:34 -0700
"Ron D'Eau Claire" <[EMAIL PROTECTED]> wrote:
>
> So, in terms of impedance matching, there's no reason to consider the
> "UHF" connector inferior to any newer types for the HF bands, and
> even through 6 meters at least.
>
> Ron AC7AC
>
But in terms of be
Good Morning Group,
I'm beginning the KPA100 and KAT100 build this weekend and have some
questions.
True or False: I must run two power lines from my Astron 35, one to the
KPA100 and another to the KAT100.
True or False: I MAY connect a secondary power supply (turned off) to the
barrel connect
John,
I too have come to the conclusion that working with BNC and N connectors
is actually a lot easier than UHF types.
But I continually hear from hams that look at the K2 and point to the
BNC connector on the QRP unit then comment "THAT would HAVE to be
changed to a UHF type - that is all
Installed the KDSP2 module in my K2 this morning. During initial checkout,
the LED light does not come on upon power up, or at any other time. The
other steps on the initial checkout (p.18) seem to be working as specified.
What does it mean when the LED does not come on? Is there any particu
How tacky -
I forgot to sign my own question...
Thanks es 73,
Tom, KJ3D
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of KJ3D
Sent: Saturday, April 21, 2007 7:46 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] KAT-100
Good Morning Group,
I'm begi
On Saturday, April 21, 2007 at 10:13 AM, John GM4SLV wrote:
Proper N/BNC/TNC/C types, with pressure sleave and "top hat" ferrule for
under the braid are a joy to fit, requiring a knife, a pair of small
sidecutters, a _small_ soldering iron for the centre pin only and a
couple of small spanners t
TRUE to all your T/F questions.
To answer the REAL question, yes the KPA100 will go into bypass if power
is removed from it. The KAT100 does present a problem if it is powered
from the same supply as the KPA100 and that supply fails or is switched
off because the KAT100 does not use latching
Mike,
If the KDSP2 seems to be working properly, I must ask about the
possibility of the LED being reversed.
Shine a light on the top of the KDSP2 and look carefully at the LED -
near the base you will find some reflective metal through the colored
lens - there is a narrow wedge in that meta
I would add that once you have a good crimp tool, such as the
ratcheting type Don mentions, one can install crimp UHF connectors as well.
I switched to crimp-type connectors quite a while ago and find them
superior to solder-type connectors. Some crimp connectors are
double-crimp, i.e., both
Thanks Jack. That begs the question for us lazy types... which supplier
is cheapest?
73,
Larry N8LP
Jack Smith wrote:
I would add that once you have a good crimp tool, such as the
ratcheting type Don mentions, one can install crimp UHF connectors as
well.
I switched to crimp-type connecto
Don,
That was it. Thanks for your assistance as usual! You are so helpful, and
please know it is appreciated by all of us Elecrafters.
Thanks and 73,
Mike
N4JX
- Original Message -
From: "Don Wilhelm" <[EMAIL PROTECTED]>
To: "Mike Geddes" <[EMAIL PROTECTED]>
Cc: "Elecraft"
Sent:
Jack Smith wrote:
I would add that once you have a good crimp tool, such as the
ratcheting type Don mentions, one can install crimp UHF connectors as well.
I switched to crimp-type connectors quite a while ago and find them
superior to solder-type connectors.
snip
uh pardon my ignorance..
Recently there was some discussion about wanting to mount the W!
power meter in a case and several suggestions were offered.
I have just finished mounting mine in a 4" X 2" X 5 1/5" utility box
by making a small pc board to mount the LEDs separately. It turns
out that there is no need to run
Larry,
Try Sharper Concepts . You may have to buy two
crimpers to cover all common coax sizes, but I found their prices less
than a single tool with interchangable dies. I don't know if they are
the cheapest, but I don't usually buy tools just because they are cheap,
cheap tools are usually
Sam,
Crimped connections are superior to soldered whenever the crimp provides
a gas-tight connection.
In a similar manner, wire connections made onto square posts with a
proper wire-wrap tool provide a better connection than one which is
soldered.
73,
Don W3FPR
Sam Morgan wrote:
uh pard
On Sat, 21 Apr 2007 07:42:03 -0500
Sam Morgan <[EMAIL PROTECTED]> wrote:
> Jack Smith wrote:
> > I would add that once you have a good crimp tool, such as the
> > ratcheting type Don mentions, one can install crimp UHF connectors
> > as well.
> >
> > I switched to crimp-type connectors quite a
1. Properly applied, the crimp provides a gas-tight metal-to-metal seal.
2. Also, the ferrule provides a strain relief at least as good as the
braid-clamp in a conventional N or BNC connector.
3. For UHF connectors, double crimp = no heat and thus eliminates the
chance of melting the dielectr
I bought my tool and die sets from RF Parts http://www.rfparts.com/.
I have seen what seems to be the same tool at about half the price
searching around on the internet a while ago, but I can't be sure if it
is exactly the same. RF Connection http://www.therfc.com/ also has an
interchangabl
Hi Don and Jim,
Thanks for taking the time to respond.
The KPA100 will be internal and the KAT100 will be in an EC1.
After re-reading the manuals for the KPA and KAT 100's, maybe this isn't so
hard.
I think that I can connect my secondary supply directly to the K2 and then
power the KAT100
Tom,
Would it not be easier to simply connect the KAT100 permanently to the
secondary power supply?
If you have the secondary supply always connected to the K2 (and powered
on) for backup QRP operation, then I don't understand why you would want
to provide a switch in the KAT100 power line.
Hello all,
Just my 2 cents. I don't own any type N connectors personally, but I do
work on military aircraft and have never seen a UHF connector used.
Crimping is not allowed; soldering is the only option for everything.
73
Brian
N1WNC
-Original Message-
From: [EMAIL PROTECTED]
[mai
Sam Morgan wrote:
seems I have been corrected,
friction contact is better than soldered connections
guess my Navy electronics teacher with his 20+ years of experience was a liar,
but I'll let ya'll tell him that, I wouldn't dare,
I value my life more than that.
--
GB & 73's
KA5OAI
Sam
I have several good tools... just had to respond to that opening ;-)
73,
Larry N8LP
Don Wilhelm wrote:
Larry,
Try Sharper Concepts . You may have to buy
two crimpers to cover all common coax sizes, but I found their prices
less than a single tool with interchangable dies. I don't know if
Hi Sam,
I wouldn't call anyone a liar either, but I remember an instructor at
Destroyer School (also Navy) telling us how to handle a misfire on 5 inch
guns. He said - and I'm not making this up - that if the barrel is hot, we
should NOT attempt to cool it off by hosing it down with cold water fr
I'm surprised to hear that. I understand it was the aircraft industry that
developed crimping as a more reliable way to make joints than soldering, at
least for regular wiring in aircraft.
Having seen a lot of bad soldering and assembly of PL259s done by my amateur
friends, I have a mind to b
You could let NASA argue with him.
GSFC-733-HARN-01, Rev C, July 2003, DESIGN AND MANUFACTURING STANDARD
for ELECTRICAL HARNESSES (GFSC is Goddard Space Flight Center) says:
"4.20 Conductor terminations- The preferred method of terminating
conductors is with a crimp termination. However, wher
Also, MIL-C-39012 has many qualified N crimp connectors.
http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-PRF-39012/prf39012ss1.pdf
for your reading pleasure.
Further these crimp RF connectors appear to be qualified for use on the
International Space Station from what I can tell (lots of re
Wondering how many of you are using the ProSet-K2 boom headset sold on the
Elecraft site? It is a nice microphone solution? Any of you have another
preference for nice sounding microphone for your K2? Any opinions are
welcome!
73,
Mike
N4JX
Brian,
Then there must be a difference between original manufacture and repair
for those connections. The prior information I have from NASA and for
avionics applications is that crimping is the preferred method of
fastening. The only reason I can think of to vary from that in the
field is
Hi
I have a (bad?) habit of re-using uhf connectors on different length
of coax when needed. How would you un-crimp a uhf connector?
Just though I would ask!
Scott N5SM
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I don't know the difference for the K2 version, but I use the ProSet
Plus with adapter for Kenwood microphone as my K2 is wired for Kenwood
type configuration. I've used it for ARRL FD contest as the SSB station
at our FD site during the last two years and we've done quite well.
I've used it
Oak Hills Research offers kits of 2ea BNC female connectors
with nicely pre-punched and finsihed plates that allow them to
be installed in the SO-239 hole pattern. The kits include a
ground lug. I've fitted my OHR WM-2 and Elecraft items with
them.
I was disappointed to find the kits are onl
On Sat, 21 Apr 2007 11:06:08 -0400
Jack Smith <[EMAIL PROTECTED]> wrote:
> Also, MIL-C-39012 has many qualified N crimp connectors.
> http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-PRF-39012/prf39012ss1.pdf
> for your reading pleasure.
>
>
> Further these crimp RF connectors appear to be qu
In a message dated 4/21/07 10:56:31 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
> I understand it was the aircraft industry that
> developed crimping as a more reliable way to make joints than soldering, at
> least for regular wiring in aircraft.
>
In the railroad signal industry, so
Don, et al:
What a great thread ! I have only experience with crimping BNC and SMA
connectors and, strangely enough, LMR-600. Yep, I borrowed the crimping tool
for LMR-600 which is outrageously expensive from a cell telephone outfit
here in town. The owner is a ham friend of mine and he gave me an
Mark J. Schreiner wrote:
I don't know the difference for the K2 version, but I use the ProSet
Plus with adapter for Kenwood microphone as my K2 is wired for
Kenwood type configuration. I've used it for ARRL FD contest as the
SSB station at our FD site during the last two years and we've done
On Saturday, April 21, 2007 at 6:01 PM, Mark NK8Q wrote:
It is a very comfortable heaset and I like the ability to switch the phase
which I do several times during a contest which seems to reduce the amount
of fatigue compared to using my hi-fi stereo headphones.
I did change R14 from 1k to 10
On Sat, 21 Apr 2007 10:57:51 -0500, [EMAIL PROTECTED] wrote:
>I have a (bad?) habit of re-using uhf connectors on different length
>of coax when needed. How would you un-crimp a uhf connector?
>Just though I would ask!
My experience with "uncrimping" a connector of any type is to
cut it off t
On Sat, 21 Apr 2007 10:13:40 +0100, John GM4SLV wrote:
>No messing about with
>soldering guns, blow torches or whatever people use to try and make a
>decent fist of soldering the braid (or usually just relying on pressure
>and the mstical force of gravity to hold the braid in contact with the
>she
On Sat, 21 Apr 2007 09:31:36 -0500, Brian wrote:
>Just my 2 cents. I don't own any type N connectors personally,
>but I do work on military aircraft and have never seen a UHF
>connector used. Crimping is not allowed; soldering is the only
>option for everything.
That's odd. When I worked on
On Sat, 21 Apr 2007 15:55:19 +0100, David Cutter wrote:
>Having seen a lot of bad soldering and assembly of PL259s done
>by my amateur friends, I have a mind to buy a crimper set for the
>club so the members can make quality connections to the plugs of
>their choice.
Excellent Idea! Our ARES/R
On Sat, 21 Apr 2007 11:21:37 -0400, Don Wilhelm wrote:
>For instance, I do not crimp my Anderson PowerPole connections -
>because I do not have the correct tool - I have tried the
>low-priced model, and I have experienced several connector
>failures and have gone back to soldering them.
After u
*That* is where I saw them! Thanks for tickling my memory. I'm building
an HFPacker amp, which has a BNC in and SO-239 out. I hate SO-239s
(probably because I started making my own cables for VHF/UHF, and
my Elmer railed against them), and was going to switch
this to an N. But all my portable anten
OMs;
I've been giving my old Alinco mike a jaundiced look lately, the
remaining part of a HTX-212 rig I got from Rad Shacque many years ago.
The prime question: does anyone have a short answer for me, if this
little electret mike, with up/dwn buttons, keyboard, PTT switch, will
work with
Gil Gibbs wrote:
OMs;
I've been giving my old Alinco mike a jaundiced look lately, the
remaining part of a HTX-212 rig I got from Rad Shacque many years ago.
The prime question: does anyone have a short answer for me, if this
little electret mike, with up/dwn buttons, keyboard, PTT switch
We use crimp only at work.
Loads of BNC connectors on 45 mb DS3 cables, they
get abused and never seem to fail.
We have a very expensive amphenol tool that crimps
the shield and center pins.
We also crimp the 48 volt power wires, 200 amp and so on,
very special tools for that, and the wire has t
A little background info-- my KAT100-1 is grounded, it is connected to a
Carolina Windom 80. It will tune all bands from 80 through 10 meters and give
a 1:1 SWR on all bands except for the phone band on 40 meters. If I go from
the CW portion (7040 Khz for example) straight to the the phone seg
Good Evening,
Another blur of a week. It did not help I was doing volunteer work nor
did it help that I was not feeling at all well. Monday night after I got
home from work I started running a fever and I was pretty hazy by the time
I drove myself to bed at 0 dark thirty. Tuesday morni
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