I had a similar failure several years ago. Don helped me troubleshoot that
little board and the problem turned out to be a few diodes that got blown
due to a lightning strike. I was glad it took out the diodes and not the
K2.
I do not use a KUSB converter with the K2 as I have 'real' RS232
Dave,
Being a little 'tongue in cheek' the answer is -- That depends on what
you mean by "good"!
Seriously, the fact that you can turn it on and off in the menu only
means that there is a response from the KIO2 when it is communicating
with the MCU over the AUXBUS line.
I would suspect the
I agree. I had a strike zap the KIO3 in my K3 because even though all
my other gear was unplugged at the time, my laptop (which interfaces to
my K3) wasn't. at first thought it was the KUSB. I bought a second
one figuring it wouldn't hurt to have a spare if the cable turned out to
not be
On 11/19/2021 1:40 PM, Dave Sublette wrote:
I'm wondering if the KUSB cable is bad(probably due to the strike)?
I would expect damage to electronics rather than cables. But ya never
know. :)
73, Jim K8YC
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I had a lightning strike and am getting things back together. I am
attempting to connect via a KUSB cable with a series adapter to make it a
proper cable for the K2.
The PORT menus says the port is ON and I can turn it ON and OFF as outlined
in the manual.
Prior to the strike, this same radio
Thanks to the several who replied, and especially to Don for the exact
information that I needed.
73,
Paul - N8XMS
100% QRP CW
> On Aug 23, 2021, at 3:25 PM, Don Wilhelm wrote:
>
> Paul,
>
> You must construct the special cable that is specified in the KIO2 manual -
> you can make it a
Paul,
You must construct the special cable that is specified in the KIO2
manual - you can make it a short one if you want.
That cable has a DE9 connector on the PC end which you can plug into a
serial port or into a USB to serial adapter - The KUSB sold by Elecraft
is a good choice -- if you
On 2021-08-23 10:22, Paul Huff wrote:
I am thinking about adding the KIO2 RS-232 serial interface to my K2
but I don’t know very much about computer hardware. Would the KUSB
serial cable that is also sold by Elecraft then be needed to connect
the KIO2 to the USB port on my Mac computer? Or is
I am thinking about adding the KIO2 RS-232 serial interface to my K2 but I
don’t know very much about computer hardware. Would the KUSB serial cable that
is also sold by Elecraft then be needed to connect the KIO2 to the USB port on
my Mac computer? Or is there something else that would be
Problem is fixed. Thanks to very good advice from Geert Jan PE1HZG.
I solved it by putting the old cable in series with the new cable. The
old cable had only the proper three pins in it. I had made it several
years ago, using the information in the manual. In the meantime I had
forgotten the
Richard,
What kind of cable did you use to connect the K2's KIO2 RS-232 port to the
transverter? As Don, W3FPR has reminded us numerous times, one cannot use a
conventional RS-232 (straight thru serial) cable with the KIO2, but one must
instead make up the special cable described in the KIO2
Hello All,
I have a K2 with the KIO2 installed which has stopped working after I hooked it
up to an Electaft 144mhz transverter, the transverter is working as I have used
it with a K3. I have bought a new KIO3 kit, built and tested it as per the
instructions however there is still no voltages
If you look up the data sheet, and under “Absolute Maximum Values” will reveal
a clue. The MAX 1406 shows a maximum value of 7 volts. Wouldn’t hold my
breath on it working if 12V applied. There are other components involved also…
Ben W4SC
Sent from Mail for Windows 10
Don,
Why not replace the regulator and cross your fingers? If it works, all
is well. There is no firmware on the KIO2, but the MAX1406 U1 may have
been damaged.
73,
Don W3FPR
On 11/4/2020 10:09 AM, Don Zank via Elecraft wrote:
HiMy KIO2 interface has stopped working. Voltage checks
Change them both. Even if the unit “worked” ok if you didn’t replace U1, you
would be just waiting for a failure.
Sent from my iPhone
> On Nov 4, 2020, at 10:11 AM, Don Zank via Elecraft
> wrote:
>
> HiMy KIO2 interface has stopped working. Voltage checks indicated that the
> 5 volt
HiMy KIO2 interface has stopped working. Voltage checks indicated that the 5
volt regulator had 12 volts in and 12 volts out. This is the VCC feed for the
U1 processor. So I can replace the regulator but would the processor have been
damaged? Should I just change both for general practice?
Just scored a used K-2 TNX & 73. PAUL. WA6YCA
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Tom,
Do NOT connect a standard serial cable or a USB to RS-232 adapter to the
K2 (KIO2) AUX IO connector. Note that it is labeled AUX IO and NOT
RS-232. It contains internal K2 signals for external Elecraft gear such
as the KAT100, KRC2 or the XV series transverters.
Build the special K2
> for
> Windows 10
>
>
>
> *From: *Jack Brindle via Elecraft
> *Sent: *Friday, February 15, 2019 1:18 AM
> *To: *K2bew
> *Cc: *Elecraft Mail List
> *Subject: *Re: [Elecraft] KIO2 RS-232 to USB?
>
>
>
> Be absolutely sure to use the cable as described in the
Subject: Re: [Elecraft] KIO2 RS-232 to USB?
Be absolutely sure to use the cable as described in the K2’s KIO2 manual to
connect the K2 to the USB adapter. Using a straight-through cable will cause
damage to the K2.
73!
Jack, W6FB
> On Feb 14, 2019, at 7:08 PM, K2bew wrote:
>
> My comp
Be absolutely sure to use the cable as described in the K2’s KIO2 manual to
connect the K2 to the USB adapter. Using a straight-through cable will cause
damage to the K2.
73!
Jack, W6FB
> On Feb 14, 2019, at 7:08 PM, K2bew wrote:
>
> My computer does not have a 9 pin serial port. I have a 9
>From experience I find the units from R T Systems are 100% reliable. Much more
>so than the office supplies, electronics stores, Walmart and such. Plus if you
>have questions, a phone call allows one to speak with a real person in the
>USA.
Bob, K4TAX
Sent from my iPhone
> On Feb 14,
Hi, Tom -
I don't have the specific DB9 to USB adapter that you have, but do this one:
https://www.startech.com/Cards-Adapters/Serial-Cards-Adapters/1-Port-USB-Serial-RS232-Adapter-Cable~ICUSB2321F
which I use with both the KIO2 as well as the DB9 port on the KPA100 and it
works great.
>From
My computer does not have a 9 pin serial port. I have a 9 pin to USB
prolific cable/adapter that I use to connect my Ten-Tec RX320, that also
has a 9 pin serial port, to the computers USB.
The manual for the KIO2 says you can use a 24 pin to 9 pin adapter, but it
does not mention connecting to
I have an unbuilt KIO2 module that I want to sell either in the kit form or
built. Let me know if you have any interest.
73
Alan
W1HYV
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Help:
after many years away, hello again -
I'm trying to get my K2 back online, with a KIO2 in it. (I have a
KAT100-2+K2/100 in a separate box, disconnected for now.) I'm pretty sure all
this worked when I put it away - ten years ago maybe.
I'm using PuTTY in Windows (with a brand new untried
Comtemplating KIO2 together with Apple Macintosh
Where to look for most recent programmes.
Sorry, never owned a PC.
Hans, OZ5RB
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Help:
For general logging on the Mac I use the free Rumlog program (very powerful):
http://www.dl2rum.de/rumsoft/RUMLog.html
For contesting, I use N1MM running under a windows VM on VMWare Fusion for Mac.
73, Matt VK2RQ
On 18 Jan 2015, at 8:11 am, Hans Elfelt Bonnesen hans.elf...@me.com wrote:
I use fldigi for all things digital on the Mac, along with RUMLog and of
course my own rig controller (wizkers.io). This way, all software can run
simultaneously and share the rig frequency and control, works really well!
Ed, W6ELA
On Jan 17, 2015 1:12 PM, Hans Elfelt Bonnesen
Both of my K2s were connected to the same computer and both suffered the
same fate of loss of KIO2 communication. I am not sure of the exact
cause or the exact time it happened.. Several of the USB ports are not
working now and the computer has been taken off line.
I replaced a burned out
Ted,
That 5 volts at KPA100 U4 pin 11 comes from the base K2 - Control Board
U6 pin 24 (and the pullup resistor pins 3 and 4 of RP7).
I suspect CB U6 pin 24 may be shorted.
Since you have 2 K2s, you might try swapping the firmware between them
and see if the problem follows the firmware.
The KIO2 I offered is sold. Thanks. 72!
Jim Stephens, NX8Z
Sent via iPhone
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Dear Mike,
thanks for your help.
I'd like to take a look at your Java program because I want to use Android.
The two languages are very similar and I might be able to get something
useful.
I will try to send you an email as soon as possible.
Sincerely
Enzo, iw7dmh
--
View this message in
Dear Don,
thank you very much for your reply. I wanted to be sure of not having to
reinvent the wheel.
Best regards
Enzo, iw7dmh
--
View this message in context:
http://elecraft.365791.n2.nabble.com/KIO2-commands-for-KDSP2-filter-tp7572197p7572231.html
Sent from the Elecraft mailing list
Enzo,
I wrote a small program in Java to retrieve K2 settings:
http://udel.edu/~mm/ham/elecraft/
On that page click on the link K2 Settings Retrieval to see sample output.
The program is read only does' modify the k2. The only reason I haven't made
the code available is that it isn't
Good evening,
I was wondering if I can change DSP2 filter settings through the KIO2 cat
commands.
Since there are no dedicated commands to control DSP2 filter, I suppose the
only way is to set the emulation mode (SW command) and then use the DS
command to read the filter status on the display.
Enzo,
Yes, there are no direct commands to change the KDSP2. You will have to
do it as you have outlined with the SW commands emulating actual button
taps and holds for the KDSP2 and if you want to see the results, the DS
command is the way to do it.
The KDSP2 was originally designed by a
Seasons greetings all...
I am looking for a KIO2 if anyone has one surplus to requirements.
Replies off list directly to me please.
Thanks... MX ES HNY
73 Marc G0AZS, K1UG
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For sale KIO2 and KAT2 with lid and speaker. Works great. $225. Will take
paypal. Off list markf1...@hotmail.com
T-Mobile. America's First Nationwide 4G Network.
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Hi, Does anyone have a spare KIO2 they will part with?
Bob w7wo b...@kalkwarf.com
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Can I substitute the 78l05 (u2) 5v regulator on the kio2 with a l7805cv?
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This
KIO2 sold pending payment
Thank you,
Jim Douglas K2ZF
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Hi all,
The following items are for sale:
KIO2 $60.00
KAT2 $115.00
Postal money order if interested.
Continental US ONLY!
Thanks, Jim Douglas K2ZF
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Hi,
I have a KIO2 for sale. $60.00
postal money order if interested
Lower 48 ONLY!
Jim Douglas K2ZF
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Post:
I have a KIO2 and K2 top cover for sale. I would prefer to sale them together.
$80 plus shipping or best offer. The speaker and KIO2 have been tested and are
in very good condition. Please contact me directly.
73
Dave KD1NA
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I have one. I also have the K2 case top cover with speaker if you are
interested that I would sell.
73
Dave KD1NA
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I built and installed the KIO2 about 6 or 7 years ago, successfully used it
in one contest and then entered a period of relative inactivity where the
KIO2 was not used.
During the recent CQ WPX, I realized that my old KIO2 - computer serial
cable was relatively useless to me now because my
Ed,
Sorry to be the bearer of bad news, but you should *not* have plugged
that or any other USB to serial cable directly into the K2.
You connected RS-232 level signal to pins on the K2 AUX I/O that are not
intended to have RS-232 levels applied. Only pins 2 and 3 can handle
the RS-232
Hello , just finished my koi2 module for my k2 with rev 2.4p 1.09
Can I finished it by follow the instructions in the manual rev b july 16
regarding the control board
cut trace and jumper
73 Rolf
SM2MZC
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Rolf,
Read the manual carefully. That change is ONLY to be done if your K2
serial number is less than 3000.
SN 3000 and above already have the changes on the Control Board.
73,
Don W3FPR
Rolf Jansson wrote:
Hello , just finished my koi2 module for my k2 with rev 2.4p 1.09
Can I finished
Hello all again , any kio2 for sale
(k2 15w)
Rolf
SM2MZC
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Hello all , any kio2 for sale
(k2 15w)
Rolf
SM2MZC
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I'm writing some code to work with the KDSP2 and have run into what I
believe is a shortcoming in the DS command.
When moving into kdsp2 menus where two numbers can be modified (e.g.,
filter, nr, nt settings) a flashing decimal point indicates which of the
two numbers will be edited. However,
Let me describe better what I'm trying to do. When correctly commanded, the
KDSP2 will first display version info
DSP 3.16
and then 2 seconds later will display
CTL 3.10
(The version numbers are made up - I'm at work now.) What I had hoped to do was
send a DS to retrieve the display
I'm trying to write a snippet of code that will grab the KDSP2 firmware
revisions of the DSP and KDSP2 controller. The problem I have is that I
can't seem to grab both of these strings using a DS command.
After sending the appropriate commands to have the version info
displayed, first the DSP
Hello all,
I'm having problems with my KIO2. The unit was functioning normally until
recently, then suddenly failed to connect to my PC.
I pulled the unit, set the rig to the settings recommended in the manual,
and measured the following voltages:
U1: All voltages within normal range EXCEPT:
Larry,
First remove any connector from the DB9 that may be plugged in and
re-check the voltage at U1 pin 8.
You should not assume that U1 is the culprit (but it may be). Even
though the DC voltages at Q1 may be OK, it could be producing less
oscillation than normal because of a faulty
It's been a while, since I built the module.
When looking at the U1 side, I see two empty holes just under L4.
Do I have a problem ?
Help would be appreciated
73, Allan, OZ8A
--
Jeg beskyttes af den gratis SPAMfighter til privatbrugere.
Den har indtil videre sparet mig for at få 1971
In a recent message, Allan Glasdam glas...@fejoe.dk writes
When looking at the U1 side, I see two empty holes just under L4.
Do I have a problem ?
Help would be appreciated
Have you considered looking at the manual, Allan? Without opening up my
K2 I would RTFM.
Allan,
No problem - those are via holes to carry the signal line from one side
of the board to the other. In the particular case of those two holes,
they connect the DB-9 pin 9 to R1.
73,
Don W3FPR
Allan Glasdam wrote:
It's been a while, since I built the module.
When looking at the U1
Thinking about remoting my K2 (currently QRP with KAT2, one
day with KPA100) via TCP/IP (e.g. with Ham Radio Deluxe), I
would like to know if SWR value is available via
- KIO2 serial interface?
- KPA100 built-in serial interface?
or do I need some external device like W1?
I am going to use an
I would like to know if SWR value is available via
- KIO2 serial interface?
- KPA100 built-in serial interface?
I'm not sure this will help for your situation, but you could determine the SWR
with CAT commands. The K2 will display SWR when in TUNE. So sending SW20; to
enter TUNE and then
David, thanks for your reply!
I gave it a try in a terminal program.
After connection at 4800 baud,
DS; returns the frequency
SW20; enters tune mode (I changed the tune mode to CALS to
have enoogh time for the following command)
DS; returns a ?, although I see the SWR on K2's LCD
Am I doing
, so I
cannot test. Could someone please confirm whether DS; works during transmit on
the K2. If not, this method will not work. :(
David, W4SMT
--- On Sat, 3/14/09, ub5_073_oleg ub5_073_o...@flashmail.com wrote:
From: ub5_073_oleg ub5_073_o...@flashmail.com
Subject: Re: [Elecraft] KIO2, KPA100
Install Serial Port Terminal , this software can setup your serial
ports using a GUI. It also features a terminal.
If you intend to use the commandline,
install a programm to communicate with the ports:
sudo apt-get install setserial
then tryman setserial
Martin
HNY
--
73, DM4iM
K2
My memory of how I connected my K2 to this Ubuntu 8.10 computer has
faded over the last year. Although the Ubuntu version then was 7.04,
the computer was the same.
I have been attempting to configure the com 1 serial port with the
root command:
The command you are probably looking for is 'setserial' and you may
need to install the setserial package using synaptic or apt-get. Try
'man setserial' for syntax. Most Linux programs which can
communicate with the K2 use the hamlib library (install the
libhamlib2 package).
Bob, N7XY
Try using fldigi; it's in the Ubuntu repository, and you can use either
hamlib or (my recommendation) rigcat with the K3 option to control it.
Then you set the serial port via menus.
Leigh/WA5ZNU
My memory of how I connected my K2 to this Ubuntu 8.10 computer has
faded over the last year.
Hello all,
Looking for a KIO2 that someone doesn't need anymore. Can't offer a whole lot
but
let me know what you have.
Thanks,
Ken, W2GIW
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I'm beginning to build the KIO2. Does anybody have pictures of what it
looks like. The photo on the Elecraft Web site shows an older version.
Thanks.
VE2ATD
--
Yves Dussault
Laval, QC, Canada
[EMAIL PROTECTED]
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Hello All
My K2 K2/100 stopped working with the computer I tried just with The K2/100 and
just the KI02 and still nothing. I cannot get the oscillator at 16.289 +/- 10
khz I believe the problem lies in the K2 itself I checked for bad solder joint
on the Aux plug on the control board that
David,
Check the simple things first. Do you have PORT turned on in the
secondary menu? Do you have sidetone on that K2? If not, then that is
the problem.
OK, you don't see a direct relationship between sidetone and computer
communication! It all involves the use of U6 pin 25. It
David, I experinced a similar problem with my K2/100. The problem
was an open rf choke in the data lines from the J8 Aux I/O. Have
forgotten whether it was RFC6, 7, or 8 but checked each for
continuity, found an open and replaced choke. Computer control
resumed. Hope this helps.
73,
Hi All,
My K2, KIO2 quit. I traced the problem to pin 25 on U6. It has 2mV on it,
(should be 5V). Any one have ant idea where to look from there?
The rest of the radio seems to be working properly.
Thanks, Norm
FREE 3D MARINE
Norm,
Do you have CW sidetone? Switch to CW and press SPOT to check. If
there is no sidetone, you likely have the sidetone source incorrect.
Enter the menu for ST L and edit the parameter - then tap DISPLAY until
you hear sidetone, then stop and exit from the menu.
U6 pin 25 used to be
This may seem like a stupid question but I thought I'd ask before I
warm up the slobbering iron.
I'm in the process of building my first Elecraft transverter. I'm
going to need to modify my existing serial cable for interfacing it to
the K2. I'm ultimately planning on interfacing all four
JT,
Yes, you can build up the entire daisy chain for the transverters. That
is what a 'Daisy chain' implies, one connector is just as good as any
other - the signals are sent to all the 'listeners'. If you experience
any problems, it will be with the total cable length and the
On 9/26/07, Don Wilhelm [EMAIL PROTECTED] wrote:
Keep the total cable length to less than 6 feet for reliable
operation - actually try to keep the length to the minimum feasible.
Thanks Don, I hear ya. My longest run will be for PC interfacing
which doesn't use the AUXBUS. I was .planning on
Jack Brindle wrote:
Well, perhaps there is another way. There are many programs that can
generate CW to key a radio. Why not set one up with the messages you
They generally simulate a straight key.
want to place in memory, then for each message, push the K2 buttons to
The K2 rejects the
FWIW I am currently adding the fldigi CW decoder into a HRD program.
ftp://ftp.ham-radio.ch/common/Pictures/What%20is%20this.JPG
I plan to support TX via the KY command and also using K1EL's keyers.
Simon Brown, HB9DRV
- Original Message -
From: Don Wilhelm [EMAIL PROTECTED]
I do
Am I correct in my reading of the programming document in saying that
one cannot program the message memories from the computer, but can only
do so with a paddle key?
--
David Woolley
Emails are not formal business letters, whatever businesses may want.
RFC1855 says there should be an address
David,
I do believe that is correct, but take a look at the KY command. With a
computer connected, you can store many, many CW messages in the computer
as ASCII text and send them using the KY command.
Unfortunately, this command is K2 unique and is not supported by any of
the popular rig
The internal K2 keyer is supported in TRX-Manager. There is a separate
little K2 keyer windows that lets you enter text which is sent to the
K2. I don't remember offhand whether that interface has memories like
the main TRX keyer, but I suspect it does.
Larry N8LP
Don Wilhelm wrote:
8:43 AM
To: David Woolley
Cc: Elecraft Reflector
Subject: Re: [Elecraft] KIO2: Programming message memories
not possible?
David,
I do believe that is correct, but take a look at the KY
command. With a
computer connected, you can store many, many CW messages in
the computer
Don Wilhelm wrote:
I do believe that is correct, but take a look at the KY command. With a
computer connected, you can store many, many CW messages in the computer
as ASCII text and send them using the KY command.
The problem is that I'm antenna restricted where the PC is, so I wanted
to
Well, perhaps there is another way. There are many programs that can
generate CW to key a radio. Why not set one up with the messages you
want to place in memory, then for each message, push the K2 buttons
to program a message, then have the computer send that message. When
it is finished,
Does anyone know if WriteLog supports Virtual Keying of CW/PTT
through the K2 KIO2 interface? I've used N1MM in the past with other
rigs but it doesn't support Elecrafts Virtual Keying.
Thanks
- JT
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On 6/30/07, Philip Carter [EMAIL PROTECTED] wrote:
PTT doesn't go through the KIO2. You would be better off using it
through the KEY line. I don't use writelog, so I don't know your unique
situation.
Thanks for your reply but I do read manuals before I post and it says
I can key CW/PTT
JT,
You are correct, not many applications support the K2 virtual keying.
I do wish that would change, and perhaps it will now that Elecraft has
gotten more attention with the K3 (well, wishful thinking sometimes
produces results G).
I can only believe that it is not supported because the
I use N1MM contest logging program. At present, I communicate between the PC
and the K2 with its KIO2 using a serial cable, and I key the K2 using a
parallel cable with Tom's (N0SS) keyer built into the parallel cable housing.
With parallel ports absent from many laptops, and in the interest
I use N1MM contest logging program. At present, I communicate between the PC
and the K2 with its KIO2 using a serial cable, and I key the K2 using a
parallel cable with Tom's (N0SS) keyer built into the parallel cable housing.
With parallel ports absent from many laptops, and in the interest
Fred,
BE9 pin 7 connects (through the internal cable) to the microprocessor
VRFDET signal for use in detection of the power output level.
As a result it is not available for other uses. You will have to find
another path.
73,
Don W3FPR
cloud runner wrote:
I use N1MM contest logging
Fred - kt5x wrote:
The KIO2 uses pin 2 and pin 3 for RXD and TXD communication with the radio,
and pin 5 for the ground connection.
1) Can I use pin 7, on the KIO2 labeled RF but appears that nothing is
connected to it, to drive transistor keying of the radio instead of the
parallel port?
I wrote previously:
I've done what you're talking about with CT but not N1MM.
I haven't used CT with serial port keying for 6 years so the memory
is a little hazy. Turns out you can't have the rig control and
keying on the same serial port with CT. You can run them on separate
serial ports,
the two communications pins (TxD and RxD) WILL cause
failures in your K2. Thus you want to be very careful about what you let near
your K2...
-Original Message-
From: cloud runner [EMAIL PROTECTED]
Sent: Apr 26, 2007 9:20 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KIO2 and serial
On Thu, 26 Apr 2007 15:03:35 -0400 (EDT), Jack Brindle
wrote:
If you want to break out pin 7
Yes. I use Writelog as a contest logger and have always set
it up to send CW on pin 4 of the computer's serial port. I
break it out of the serial cable, make an inverter/level
shifter for it (a
It looks to me that the KIO2 manual does not tell you which side of P1 (long or
short pins) goes through the holes in the AUX PC board. Since all of the others
in the K2 and KPA100 use the short pins, I am assuming that will work. It is
also a VERY tight fit - maybe the holes are a little too
Don -
Once again I want to thank you for your help in repairing my Elecraft.
I followed your instructions and quickly discovered that pin 8 on the DB9 of the
KIO2 was not soldered. Pressure alone had held it in place and it sure looked
solid, but with magnification I saw it was not the same
Now that my KPA100 is working well, I'd like to return it to the EC2 case
separate from my K2. However, the KPA100 does not want to talk to the K2
through my KIO2. The KIO2 had been working at one time.
To be sure the problem was in the KIO2 and not the KPA100, I tried to use the
KIO2 to
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