I agree with Bob, but as 45-years experience has taught me.
Properly crimped bright new copper wire is fine. Take a look several
years later (also compare contact resistance; probably best measured
as voltage drop under load). If you live in the desert where
humidity never rises above 25%
Glad it works, but this is strange. I always do firmware updates with the P3 in
line.
Vic 4X6GP/K2VCO
On Aug 22, 2015, at 2:46 AM, pastor...@verizon.net wrote:
Well, it seems that the prolific cables do work with windows 10 and the K3.
Evidently you can't connect the cable to the P3 and
I got great info including some actual measurements from W4BQF that jived
with mine, once I took corrective action by shortening the power lead and
eliminating the dual fuses. Findings:
- starting T/S by eliminating the simplest (and most notorious) suspect is
still a great idea
- I was
When I need to know accurate power readings my best instrument is
either scope and good 50-ohm termination, or using my HP432A mw power
meter. Its about 1/2 dB accurate. But +10mw is the highest scale so
you need several high power coaxial attenuators to measure
power. 40dB will permit
Thanks for all the suggestion on and off list. It is not an issue of not know
which file or where to find it, rather I am not able to get to the Elecraft
ftp site. Clearly the problem is on my end of it. Only recent change here is
upgrading to Windows 10. I will have to look closer as to why my
On Fri, Aug 21, 2015 at 11:19 PM, Edward R Cole kl...@acsalaska.net wrote:
When I need to know accurate power readings my best instrument is either
scope and good 50-ohm termination, or using my HP432A mw power meter. Its
about 1/2 dB accurate.
Isn't 1/2 dB accurate the same as 12 percent
Maybe really precise is a stretch when you're using scalar instrumentation.
Considering the money we put into rigs and antennas, the ~$500 price of the
DG8SAQ Vector Network Analyzer is affordable.
I can remember the days when I had to have some precision attenuation
measurements made on a
Guys, there may be new/better information out there, and I’m agreeable to be
wrong.
I just know that our Government spends millions/billions to over research
everything. What follows is excerpts from the US Navy Electricity and
Electronics Training Series, Module 4, Chapter and page is
The firmware version in my KX3 is MCU 02.33, DSP 01.33. The AGC (menu)
parameters are at their default values. If you turn off AGC (menu AGC MD) the
audio is fine. If you turn AGC on the audio is very clearly distorted on
signals stronger than about S7. The stronger the signal the worse the
Juhani,
I've encountered this as well. It's particularly noticeable with some of
the wide ESSB sig's which tend to use less compression and no doubt have a
higher peak to average ratio than most other signals on the band.
I've found that reducing the RF gain control to about -10 to -12, helps
Seems that I somewhat stirred the pot on this topic with my suggestion
of using a Bird 43P or LP-100a.In this regard with a Bird 43
instrument, proper choice of a slug is necessary. Thus if one wishes to
measure 10 watts or so then a slug of the proper full scale range, both
in power and
Fair enough Tom :) ,
I've not had the pleasure of doing microwave other than
fixing/troubleshooting radar (APS 180/APS 80). My Navy training didn't
include soldering/crimping for radar other than cannon/other connections.
It's been a long time and I don't recall the magnetron connection types as
Anyone who has purchased a used K2 needs to take notice, lest it happen
to you too.
That connector is marked AUX I/O for exactly that reason, it is not a
computer RS-232 connector even though it contains TXD, RXD and signal
ground. As a result, one must always use the special cable that is
Hi Don. I'm sure you're aware that the RS232 spec includes the
description of voltage levels, and if you're going to refer to an
interface as RS232 (as Elecraft does in many places) then you're
implying that the normal RS232 signal levels will be used. A user
shouldn't be required to read a
On 08/22/2015 02:49 AM, Vic Rosenthal wrote:
Glad it works, but this is strange. I always do firmware updates with the P3 in
line.
The one time that doesn't work is if the K3 is in manual
firmware-download mode, perhaps due to a failure of a previous download.
For that, the P3 should be
Just wondering what DXers who have the K3/K3s think. My main mode will be CW
with my objective being DX primarily. With this in mind it's been suggested
that the P3 would be more useful than the SubReceiver. I'm starting to
rethink that and just wondering which is the most useful for DX? I won't
Jerry,
If you are used to a single receiver without a panadapter, then you are
used to using your ears.
So, I would suggest that the SubRX would be the first choice for DX
operation. You can monitor the DX frequency in one ear and the pileup
in the other - tuning a bit should reveal the
You say Tomato, I say Tomatoe.
73, Dick, W1KSZ
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim
Brown
Sent: Saturday, August 22, 2015 9:15 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K2 - KPA100 RS232 interface repair
On
Menu, Cursors, knob press
What you are probably experiencing is that when you first press the menu
button the first thing to come up is FW Rev. You have to turn the knob
counter clockwise before you see Cursors.
73,
Mike K2MK
N5GE wrote
The K3S is great! , but now I'm having trouble setting
Pictures or website? Little r if more appropriate.
Jer
On August 22, 2015 at 5:09 PM GRANT YOUNGMAN n...@tx.rr.com wrote:
I know this is old news for a lot of you, but after a long time (ser 2090 -
about) with a K3, I’m finally going to take my K3/P3 on the road. Just got a
set of cases
Thank you all for your suggestions. Wayne got back to me immediately (even
with a 9 hour time difference) and in two emails
Had the problem diagnosed and I was able to make a repair. Issue was 2M
module I had just installed. I operated with a swiss
army knife and am back in business!
I
Hi Jim. Well, when this incident occurred, I was deep into working on
an associated software problem and needed to quickly try the PC serial
port directly. I agree with you comment about reading the manual and in
fact I did so just a couple of weeks back when I acquired this unit.
From here for me as a sample of one, it's a winner to actually listen
to my split transmit frequency leaving the main RX tuned to the DX.
Using diversity on 160/80/40 to hear really weak ones is remarkable.
So I'd go with the SubRX first. But that's just MY answer, there are a
thousand variations.
It seems to me that using a DB-9 connector for non-RS232 uses is taking the
Easy way out.
There are numerous other connectors that could be used to alleviate any
Misunderstanding.
Not everyone goes through manuals with a fine tooth comb to locate the
gotchas.
73, Dick, W1KSZ
-Original
The RJ-45 connector is now defined in the RS-232 standard, as is the
DE-9 and DB-25.
Of course, Ethernet also uses the RJ-45 connector, as do multi-line
telephone sets. Those are *not* interchangeable functions. You would
not want to plug an RJ-45 RS-232 cable into your RJ-45 ethernet router
Hi Floyd,
I've owned and operated a pair of K2s, both of which I bought used.
Elecraft makes it very clear that the DB9 connector on the K2 is NOT an
RS232 interface, that it is not RS232 compliant, and that a standard
RS232 cable should NOT be used. Rather, the DB9 connector provides both
The K3S has a RJ-45 connector for the RS-232 communications. Now that's
different! Of course they supply a cable with a RJ-45 on one end and a
DB-9F on the other. And then to keep everybody happy, there is what
appears to be a 15 pin VGA connector that is the ACC connector to
provide band
RJ45 is commonly used for RS232C. Millions of Cisco routers and switches built
over the past 20+ years use this arrangement, as do many other devices. I have
a half dozen of these cables - they once were shipped with the router. Although
I don't know for sure, I'll bet the pinout is the same as
OK - many thanks, Don. I'll get busy looking at those things.
73, Floyd
On 8/22/2015 6:33 PM, Don Wilhelm-4 [via Elecraft] wrote:
Floyd,
You say the voltage at U4 pin 5 is -15.4 volts, and that *may* be a
perfectly valid voltage - that is a MARK.
It should not be constantly that way, so
Turns out it was my Xfinity hardware firewall. Didn't know it had changed.
All is good now. ;) ..mike AI6II
--
View this message in context:
http://elecraft.365791.n2.nabble.com/P3-1-34-SVGA-1-21-BETA-Firmware-available-tp7597133p7606586.html
Sent from the Elecraft mailing list archive at
I got the SubRX first as a must item for DXing with K3, because I have another
TRX with dual receiver capability. One of my friends got P3 and has repeatedly
talked about P3 how it has excellently and effectively worked on chasing DX
stations. Almost one year from having got my K3, I decided to
Not to flog this horse any further, but I direct you to page 85 of the K2
Manual where the DB-9 connector is labeled ...RS-232 and AUX I/O... .
Is it RS-232 or not ??? Is it mis-labeled
73, Dick, W1KSZ
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On
I know this is old news for a lot of you, but after a long time (ser 2090 -
about) with a K3, I’m finally going to take my K3/P3 on the road. Just got a
set of cases from Rose Kopp — K3 DXpedition, and standard P3 case. They are
just exquisite.
If you have a K3, or are a newbie with a
Hello Thaire,
Could you share this fix please ?.
73's Peter VK4JD
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Thaire
Bryant
Sent: Sunday, 23 August 2015 8:30 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KX3 help
Thank you all for your
Most of us built our K2/KPA100/KAT100 way back;
that was the only way you could buy them, not
factory-built nor factory-assembled. That did
require that we apply the fine tooth comb
approach to the manual, since we soldered every
connection to every part. As a result I'm still,
12 years or
The below are ham radio test results, NOT engineering test lab results.
(This is what an inquisitive ham does on a Saturday to keep from going out
in the 96 degree/84% humidity to cut grass.)
I have been doing some 'informative' test on my P3 TXMON verses my LP-100A
Vector wattmeter. As we all
All,
The weekly Elecraft SSB net will take place Sunday, August 23, at 18:00
UTC, on 14.3035 +/-. I will be net control from the suburbs north of
Atlanta, GA. Hopefully band conditions will be better than they've been the
last couple of weeks.
Talk to everyone tomorrow.
73 de,
--Ian
Ian Kahn,
On Sat,8/22/2015 5:17 PM, Richard W. Solomon wrote:
It seems to me that using a DB-9 connector for non-RS232 uses is taking the
Easy way out. There are numerous other connectors that could be used to
alleviate any Misunderstanding.
I see it quite differently. The K2 was a kit, designed to be
On Sat,8/22/2015 9:28 PM, Richard W. Solomon wrote:
You say Tomato, I say Tomatoe.
My Dad, who was from Ipswich, MA, said tomatoe. :)
73, Jim K9YC
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Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
Bob,
Crimped connections are superior to soldered connections in a high
vibration, high stress environment.
The solder will fracture after exposure to vibration and/or temperature
cycles. With a proper crimp tool
(not the one from Harbor Freight!) the resistance of a proper crimped
connection
Go to Elecraft’s home page and scroll down to the bottom or ..
http://www.smugmug.com/gallery/7058736_hZbo4/1/452236459_Bc3aF#!i=452236478k=W8SXP2M
http://www.smugmug.com/gallery/7058736_hZbo4/1/452236459_Bc3aF#!i=452236478k=W8SXP2M
Grant NQ5T
On Aug 22, 2015, at 4:22 PM, Jerry Moore
Floyd,
You say the voltage at U4 pin 5 is -15.4 volts, and that *may* be a
perfectly valid voltage - that is a MARK.
It should not be constantly that way, so check U4 pin 12 - if it is
zero, then the MAX1406 is behaving properly in response. That line
originates from the MCU (Control Board
I had been using an Elecraft USB/serial cable with my recently acquired K2
and the PC communications worked properly. In debugging a software problem,
it was suggested that I try using a real serial port, which I did.
Unfortunately, I was unaware that I wasn't supposed to use a standard RS232
The K3S is great! , but now I'm having trouble setting up the P3.
I hooked the P3 up with the cables furnished with the K3S and now I'm
having some issues with the P3.
1. I didn't change on the P3 settings, except loading the latest
non-beta firmware.
2. Now I can't get the U shaped cursor to
Just curious if anyone knows the insertion loss for the W2 or P3TXMON
directional couplers? The manuals don't specify. Part numbers are
different but they sure look the same!
73, Ian N8IK
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Elecraft mailing list
Home:
Nice NASA geek type reading on connections and such. I'm sure the
information is largely out of date but still has a ton of really good info.
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19750010203.pdf
-Original Message-
From: Elecraft
Howdy Gang:
I have a like new Palm Code Cube in like-new condition (used only a couple of
times) that I would like to trade for an Idiom Press CMOS4 keyer in like
condition.
The Palm Code Cube is the one that plugs into the Palm mini paddle.
Or I will sell it outright for $75 shipped.
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