Re: [Elecraft] KX3/PX3 Combo PX3 Decodes Text fine, but No Spectrum/waterfall displayed

[Matt Maguire]

You need to turn on the RX I/Q outputs in the KX3 menu.

-- 
73 de Matt VK2RQ

On 15 décembre 2015 at 3:50:20 PM, Mark Tosiello (tkddr...@gmail.com) wrote:

Hi,  

Just built my KX3 and connected to PX3. Initially, powered up fine (smoke  
test) after build with waterfall (blank) and minimal spectrum peaks as  
you'd expect if it wasn't connected to a transceiver. Now connected to my  
KX3 and listening to W1AW code file, and the spectrum is blank (no yellow  
trace at all), waterfall area is black. Text is decoding well.  

Is there some setting I'm missing? I vaguely remember reading about this  
somewhere, and some setting was missed. I reset the PX3 using the menu, but  
no help.  

Thanks!  

Mark  
KD8EDC.  

--  
  
*"The Gun Lobby's interpretation of the Second Amendment is one of the  
greatest pieces of fraud, I repeat the word, fraud, on the American People  
by special interest groups that I have ever seen in my lifetime. The real  
purpose of the Second Amendment was to ensure that state armies - the  
militias_ would be maintained for defense of the state. The very language  
of the Second Amendment refutes any argument that it was intended to  
guaruntee every citizen an unfettered right to any kind of weapon he or she  
desires*" - *Supreme Court Justice Warren Burger*  
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[Elecraft] PX3 Not Showing Spectrum/Waterfall

[Mark Tosiello]

And as so many others have done, as soon as I posted I found my problem. I
need to learn to plug stuff in the correct port...

Thanks anyway!

Mark
KD8EDC
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[Elecraft] KX3/PX3 Combo PX3 Decodes Text fine, but No Spectrum/waterfall displayed

[Mark Tosiello]

Hi,

Just built my KX3 and connected to PX3. Initially, powered up fine (smoke
test) after build with waterfall (blank) and minimal spectrum peaks as
you'd expect if it wasn't connected to a transceiver. Now connected to my
KX3 and listening to W1AW code file, and the spectrum is blank (no yellow
trace at all), waterfall area is black. Text is decoding well.

Is there some setting I'm missing?  I vaguely remember reading about this
somewhere, and some setting was missed. I reset the PX3 using the menu, but
no help.

Thanks!

Mark
KD8EDC.

-- 

*"The Gun Lobby's interpretation of the Second Amendment is one of the
greatest pieces of fraud, I repeat the word, fraud, on the American People
by special interest groups that I have ever seen in my lifetime. The real
purpose of the Second Amendment was to ensure that state armies - the
militias_ would be maintained for defense of the state. The very language
of the Second Amendment refutes any argument that it was intended to
guaruntee every citizen an unfettered right to any kind of weapon he or she
desires*" - *Supreme Court Justice Warren Burger*
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Eric Swartz - WA6HHQ, Elecraft]

If you need to block the TX lines from the amp to the K3 (or from the amp to the 
P3's computer connection if that is also in the system) making a custom cable or 
taking a M-F 9 pin adapter with the proper pins broken off can make it easy.)


The key thing to remember with RS-232 is that while you can usually have 
multiple devices listening to a path, only one can transmit.


73,

Eric
/elecraft.com/

On 12/14/2015 5:13 PM, Josh Fiden wrote:

Charles,

At this point, it seems like a silly question. BUT... have you tried 
connecting it as the manufacturer (OM-POWER) suggests? If so, what happened?


So far we know that you have tried using some Y-splitter on the RS-232 line. 
It didn't work, and Don provided a clear and detailed explanation why that was 
the case.


Serial data is echoed bidirectionally through the OM2500A. There is no "listen 
only" mode that I'm aware of. RTS and DTR are hardwired straight through.


73,
Josh W6XU
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Josh Fiden]

Charles,

At this point, it seems like a silly question. BUT... have you tried 
connecting it as the manufacturer (OM-POWER) suggests? If so, what happened?


So far we know that you have tried using some Y-splitter on the RS-232 
line. It didn't work, and Don provided a clear and detailed explanation 
why that was the case.


Serial data is echoed bidirectionally through the OM2500A. There is no 
"listen only" mode that I'm aware of. RTS and DTR are hardwired straight 
through.


73,
Josh W6XU
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Don Wilhelm]

Charles,

As Fred Cady said in a recent post, it is "all mixed up" and the safest 
way to check is to look at the schematic.
It all depends on whether you are a DTE or a DCE device.  Prior to the 
IBM PC, all was well defined and an RS-232 interface used a DB-25 connector.
AFAIK the IBM PC was the first to use the DE-9 connector for the serial 
port connector, and they initially envisioned the PC being used as a 
terminal device connected to a large mainframe - so the mix-up began 
there - thus the PC is a DTE device, and when things are run from a PC, 
the signals are "backwards".

This state of affairs was adopted

In any case, pin 2 is the DE-9 signal line for data *TO* the PC.  So the 
proper check is for a driver on pin 2 in your amplifier.   If your 
amplifier also implements other RS-232 signals that use drivers in the 
amp, it is likely that those should be disabled as well - check for 
drivers on pins 1, 6, 8 and 9 of the DE-9 connector.


And just another twist on the connector designation - the 9 pin 
connector commonly used is properly a DE-9.  References to it as DB-9 
anre quite common, but are incorrect.  If you look at the general 
category of D-sub connectors, the first letter is properly "D", but the 
2nd letter refers to the shell size - "B" is the long connector 
typically seen in computer parallel ports, "E" is the smaller shell 
commonly used in PC serial ports.
It is usually not important until you get to the typical 15 pin video 
port on computers - that is properly a DE-15HD connector. DB-15 
connectors also exist, but it is longer and has 2 rows of pins rather 
than the 3 rows of the DE-15HD.


Standards are standards, but many manufacturers do not conform to those 
standards.  Never make the mistake of thinking "it looks like a computer 
serial connector, therefore it should be one" - that thought can lead to 
damaged equipment.  Check the equipment manufacturer's manual.  If it is 
not marked RS-232, it is not likely to be RS-232.


73,
Don W3FPR

On 12/14/2015 2:50 PM, char...@k5ua.com wrote:
  


Thanks for the detailed explanation Don. It seems like that is what is
happening, the OM2500 may be sending info back on the line into the "Y"
connector, confusing Na3P on the computer end on making the OM2500 jump
frequency rapidly back and forth between the correct frequency and the
out-of-band phantom frequency. From the responses, there may be 3
possible solutions:

(1) I read N8LP's comment under a different thread heading than this
one. I am using his LP-Bridge program and LP-Pan hardware. Larry said
that I could use one of the extra serial ports in LP-Bridge to send data
to the OM2500A. I think that will work if I put a Serial to USB
converter coming out of the RS232 port on the OM2500A going back to a
USB port on the computer.

(2) If all else fails, I have used DDUTILl in the past to talk to the
OM2500A using the CI-V format into the CI-V port of the OM2500A. I don't
really want to use two virtual serial port programs (DDUTIL and
LP-Bridge), but I might have to try that.

(3) I will email OM Power to ask if I can put the OM2500A into "passive
listener" mode only. I thought that I might be able to accomplish the
same thing by removing the wire in the DB-9 cable that would carry
signals from the OM2500A back to the "Y connector, thereby making it a
"passive listener" by default. If you look at the K3S DB-9 wire
definitions in the manual, one of the wires is RX and one is TX. I was
thinking that if I removed the Line 3 TXD OUT pin from the cable going
to the OM2500A, any signals coming from the OM2500A would never get back
to the "Y" connector to confuse the computer that is listening on the
same line.

On page 18 of the manual there is a table of the DB-9 pin-out. Although
the names of the pins seem counter-intuitive to me.
Pin 2 (RXD IN) is used to _SEND_ data from the K3 _TO_ the PC and the
OM2500A.
Pin 3 (TXD OUT) is used to _RECEIVE_ data _FROM_ the PC or the OM2500A.

I'm thinking that removal of Pin 3 from the side of the "Y" splitter
that goes to the OM2500A will allow the OM2500A to _RECEIVE_ signals
from the K3S/PC _BUT NOT SEND_ signals to the K3S/PC. Does that make
sense? Would like to receive comments on these three possibilities.

Thanks for all who responded.

Charles K5UA

  
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Eric Swartz - WA6HHQ, Elecraft]

Hi Charles,

When the K3S is using the USB comm port for talking bi-directionally  to the 
computer, is is also echoing the K3S reply data out the RS232 port for 
Amplifiers, Steppir antenna controllers etc to listen to for band and frequency 
information.


73,

Eric
/elecraft.com/

On 12/14/2015 2:24 PM, char...@k5ua.com wrote:
  


How easy this would have been if Elecraft had made it possible for the
K3S to communicate with the computer through the USB port _AND_
communicate to the amplifier through the RS232 Port at the same time. As
I understand it, you can use the RS232 port, or the USB port, but not
both.

Thanks everyone.

Charles

  
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Re: [Elecraft] K3s USB audio

[Barry N1EU]

I have it working now, thanks for the helpful suggestions.  I don't
know why it's suddenly working, I didn't change anything.  I'll keep
an eye on it.

73, Barry N1EU

On Mon, Dec 14, 2015 at 10:01 PM, Cady, Fred  wrote:
> Hi Barry,
> Have you tried using the K3s regular Line In port with another sound card?  
> If that works sure sounds like something amiss with the USB in the KIO3B.
> Cheers,
> Fred
>
> 
> From: Elecraft  on behalf of Barry N1EU 
> 
> Sent: Monday, December 14, 2015 2:52 PM
> To: elecraft
> Subject: Re: [Elecraft] K3s USB audio
>
> Everything was properly configured - I could see the levels rising and
> falling in the Windows Sound Playback under the USB Audio Codec device
> as N1MM Logger+ keyed the voice message.  The rig was in transmit.
> Line level was at maximum and Mic+Lin was on. But the audio didn't get
> from computer to transmitter.
>
> 73, Barry N1EU
>
> On Mon, Dec 14, 2015 at 9:33 PM, Cady, Fred  wrote:
>> No problem here with N1MM+ playing wav files through the USB audio codec. Or 
>> with WSJT or MMTTY.
>> In N1MM+ you have to (or can) have the wav files in a directory 
>> ../wav/{operator}/...wav where {operator} is the call or name of the OPON 
>> operator.
>>
>> I think the USB CODEC works great.  What you can't do, though is switch 
>> audio streams in SO2R, at least with the YCCC SO2R box.  At least I haven't 
>> figured out how to do that yet.
>> Cheers,
>> Fred KE7X
>>
>> For all KE7X Elecraft books, see www.ke7x.com
>>
>>
>>
>> 
>> From: Elecraft  on behalf of Ed Muns 
>> 
>> Sent: Monday, December 14, 2015 1:23 PM
>> To: 'Barry N1EU'
>> Cc: 'elecraft'; wa...@elecraft.com
>> Subject: Re: [Elecraft] K3s USB audio
>>
>> That sounds like a N1MM problem.  The K3 Codec shows up fine as a Windows
>> sound device.  And, it works well with Win-Test and WriteLog.  I haven't
>> tried it with N1MM Logger+.
>>
>> Ed W0YK
>>
>> -Original Message-
>> From: Barry N1EU [mailto:n1eu.ba...@gmail.com]
>> Sent: 14 December, 2015 11:27
>> To: e...@w0yk.com
>> Cc: wa...@elecraft.com; elecraft
>> Subject: Re: [Elecraft] K3s USB audio
>>
>> It doesn't work with N1MM Logger+, probably the top application for
>> using SSB audio through the USB codec.  I believe the N1MM team is
>> investigating.
>>
>> 73, Barry N1EU
>>
>> On Mon, Dec 14, 2015 at 2:20 PM, Ed Muns  wrote:
>>> The Codec deals with digitized audio of LINE IN and LINE OUT, independent
>> of
>>> mode.  It works fine for me in RTTY and I don't see why it wouldn't work
>> for
>>> SSB and other modes.
>>>
>>> A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
>>> spectrum.  Since most of the time that was not the case, I assumed it was
>>> intermittently coming from somewhere else.
>>>
>>> Ed W0YK
>>>
>>> -Original Message-
>>> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
>> Barry
>>> N1EU
>>> Sent: 14 December, 2015 02:28
>>> To: elecraft
>>> Cc: wa...@elecraft.com
>>> Subject: [Elecraft] K3s USB audio
>>>
>>> The K3s manual p18 makes no indication that USB digitzed audio is not
>>> supported in SSB.  Can anyone confirm that USB audio is actually NOT
>>> supported in SSB?
>>>
>>> On another note, I'm seeing a huge amount of 60hz hum being passed on
>>> the USB codec playback device, rendering it unusable for rig
>>> recording.  Has anybody else tried this?
>>>
>>> Thanks & 73,
>>> Barry N1EU
>>>
>>> On Mon, Dec 14, 2015 at 12:44 AM, Chris 
>> wrote:
 Have you set your mode to digi my k3 only tx audio when I use it in digi
>>> mode not lsb or usb or cw

 Sent from my iPad
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>>
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[Elecraft] K3S RS232 "Y" Connector causing port conflict

[charles]

 

How easy this would have been if Elecraft had made it possible for the
K3S to communicate with the computer through the USB port _AND_
communicate to the amplifier through the RS232 Port at the same time. As
I understand it, you can use the RS232 port, or the USB port, but not
both.

Thanks everyone.

Charles

 
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Re: [Elecraft] K3s USB audio

[Cady, Fred]

Hi Barry,
Have you tried using the K3s regular Line In port with another sound card?  If 
that works sure sounds like something amiss with the USB in the KIO3B.
Cheers,
Fred


From: Elecraft  on behalf of Barry N1EU 

Sent: Monday, December 14, 2015 2:52 PM
To: elecraft
Subject: Re: [Elecraft] K3s USB audio

Everything was properly configured - I could see the levels rising and
falling in the Windows Sound Playback under the USB Audio Codec device
as N1MM Logger+ keyed the voice message.  The rig was in transmit.
Line level was at maximum and Mic+Lin was on. But the audio didn't get
from computer to transmitter.

73, Barry N1EU

On Mon, Dec 14, 2015 at 9:33 PM, Cady, Fred  wrote:
> No problem here with N1MM+ playing wav files through the USB audio codec. Or 
> with WSJT or MMTTY.
> In N1MM+ you have to (or can) have the wav files in a directory 
> ../wav/{operator}/...wav where {operator} is the call or name of the OPON 
> operator.
>
> I think the USB CODEC works great.  What you can't do, though is switch audio 
> streams in SO2R, at least with the YCCC SO2R box.  At least I haven't figured 
> out how to do that yet.
> Cheers,
> Fred KE7X
>
> For all KE7X Elecraft books, see www.ke7x.com
>
>
>
> 
> From: Elecraft  on behalf of Ed Muns 
> 
> Sent: Monday, December 14, 2015 1:23 PM
> To: 'Barry N1EU'
> Cc: 'elecraft'; wa...@elecraft.com
> Subject: Re: [Elecraft] K3s USB audio
>
> That sounds like a N1MM problem.  The K3 Codec shows up fine as a Windows
> sound device.  And, it works well with Win-Test and WriteLog.  I haven't
> tried it with N1MM Logger+.
>
> Ed W0YK
>
> -Original Message-
> From: Barry N1EU [mailto:n1eu.ba...@gmail.com]
> Sent: 14 December, 2015 11:27
> To: e...@w0yk.com
> Cc: wa...@elecraft.com; elecraft
> Subject: Re: [Elecraft] K3s USB audio
>
> It doesn't work with N1MM Logger+, probably the top application for
> using SSB audio through the USB codec.  I believe the N1MM team is
> investigating.
>
> 73, Barry N1EU
>
> On Mon, Dec 14, 2015 at 2:20 PM, Ed Muns  wrote:
>> The Codec deals with digitized audio of LINE IN and LINE OUT, independent
> of
>> mode.  It works fine for me in RTTY and I don't see why it wouldn't work
> for
>> SSB and other modes.
>>
>> A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
>> spectrum.  Since most of the time that was not the case, I assumed it was
>> intermittently coming from somewhere else.
>>
>> Ed W0YK
>>
>> -Original Message-
>> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Barry
>> N1EU
>> Sent: 14 December, 2015 02:28
>> To: elecraft
>> Cc: wa...@elecraft.com
>> Subject: [Elecraft] K3s USB audio
>>
>> The K3s manual p18 makes no indication that USB digitzed audio is not
>> supported in SSB.  Can anyone confirm that USB audio is actually NOT
>> supported in SSB?
>>
>> On another note, I'm seeing a huge amount of 60hz hum being passed on
>> the USB codec playback device, rendering it unusable for rig
>> recording.  Has anybody else tried this?
>>
>> Thanks & 73,
>> Barry N1EU
>>
>> On Mon, Dec 14, 2015 at 12:44 AM, Chris 
> wrote:
>>> Have you set your mode to digi my k3 only tx audio when I use it in digi
>> mode not lsb or usb or cw
>>>
>>> Sent from my iPad
>>> __
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>
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Re: [Elecraft] High SWR below 40 meters

[Jan Ditzian]

George and Jim,

8 minutes after my post hit the reflector, I received the following two 
e-mails.



George: "Now that you have a KAT-3, you have 2 antenna ports. Is there 
any chance that the wrong one is selected for those bands?"


Jim:  "Antenna selection is per band. Perhaps you have the wrong antenna 
selected for those bands."



There ya go!  New dipole tunes up.  Probably did nothing for the RF 
feedback on the vertical, though, hi.


Thanks to both.

73,

Jan, KX2A
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Re: [Elecraft] K3s USB audio

[Barry N1EU]

Everything was properly configured - I could see the levels rising and
falling in the Windows Sound Playback under the USB Audio Codec device
as N1MM Logger+ keyed the voice message.  The rig was in transmit.
Line level was at maximum and Mic+Lin was on. But the audio didn't get
from computer to transmitter.

73, Barry N1EU

On Mon, Dec 14, 2015 at 9:33 PM, Cady, Fred  wrote:
> No problem here with N1MM+ playing wav files through the USB audio codec. Or 
> with WSJT or MMTTY.
> In N1MM+ you have to (or can) have the wav files in a directory 
> ../wav/{operator}/...wav where {operator} is the call or name of the OPON 
> operator.
>
> I think the USB CODEC works great.  What you can't do, though is switch audio 
> streams in SO2R, at least with the YCCC SO2R box.  At least I haven't figured 
> out how to do that yet.
> Cheers,
> Fred KE7X
>
> For all KE7X Elecraft books, see www.ke7x.com
>
>
>
> 
> From: Elecraft  on behalf of Ed Muns 
> 
> Sent: Monday, December 14, 2015 1:23 PM
> To: 'Barry N1EU'
> Cc: 'elecraft'; wa...@elecraft.com
> Subject: Re: [Elecraft] K3s USB audio
>
> That sounds like a N1MM problem.  The K3 Codec shows up fine as a Windows
> sound device.  And, it works well with Win-Test and WriteLog.  I haven't
> tried it with N1MM Logger+.
>
> Ed W0YK
>
> -Original Message-
> From: Barry N1EU [mailto:n1eu.ba...@gmail.com]
> Sent: 14 December, 2015 11:27
> To: e...@w0yk.com
> Cc: wa...@elecraft.com; elecraft
> Subject: Re: [Elecraft] K3s USB audio
>
> It doesn't work with N1MM Logger+, probably the top application for
> using SSB audio through the USB codec.  I believe the N1MM team is
> investigating.
>
> 73, Barry N1EU
>
> On Mon, Dec 14, 2015 at 2:20 PM, Ed Muns  wrote:
>> The Codec deals with digitized audio of LINE IN and LINE OUT, independent
> of
>> mode.  It works fine for me in RTTY and I don't see why it wouldn't work
> for
>> SSB and other modes.
>>
>> A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
>> spectrum.  Since most of the time that was not the case, I assumed it was
>> intermittently coming from somewhere else.
>>
>> Ed W0YK
>>
>> -Original Message-
>> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Barry
>> N1EU
>> Sent: 14 December, 2015 02:28
>> To: elecraft
>> Cc: wa...@elecraft.com
>> Subject: [Elecraft] K3s USB audio
>>
>> The K3s manual p18 makes no indication that USB digitzed audio is not
>> supported in SSB.  Can anyone confirm that USB audio is actually NOT
>> supported in SSB?
>>
>> On another note, I'm seeing a huge amount of 60hz hum being passed on
>> the USB codec playback device, rendering it unusable for rig
>> recording.  Has anybody else tried this?
>>
>> Thanks & 73,
>> Barry N1EU
>>
>> On Mon, Dec 14, 2015 at 12:44 AM, Chris 
> wrote:
>>> Have you set your mode to digi my k3 only tx audio when I use it in digi
>> mode not lsb or usb or cw
>>>
>>> Sent from my iPad
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Re: [Elecraft] Frequency Memory Editor Software

[Stephen Shearer]

Its the K3/KX3 Frequency Memory Editor Software I was asking about.
The K3 utility program doesn't like the KX3... now; 1.15.8.25 btw.
It doesn't seem to have the capability to edit the Frequency Memory, either.

Steve WB3LGC

On 14-Dec-15 3:22 PM, Al Lorona wrote:

Hi, Steve,

I ran into that bug about a month ago. Dick Dievendorff sent me to elecraft.com 
to get a new version with the fix. You want to find version 1.15.8.18, bottom 
of the page.


http://www.elecraft.com/K3/k3_software.htm


R,

Al W6LX



From: Stephen Shearer 
To: ELECRAFT reflector ; k...@yahoogroups.com
Sent: Monday, December 14, 2015 11:20 AM
Subject: [Elecraft] Frequency Memory Editor Software


V 1.4.9.29  Win10
OK, it reads and writes from my KX3.
I can open/save from/to disk.
I can copy/cut from the data but can't paste.
Am I doing something wrong?

Steve WB3LGC
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Cady, Fred]

You gotta love the RS232 "standard" :-)

In addition to Don's explanation below, you can't rely on any manufacturer to 
label the signals according to the standard DTE/DCE nomenclature.  Some folks 
think it is just plain wrong to label a signal TXD (transmit data) when it 
really is a receiving signal line.   Or RXD when it is actually transmitting 
data. That is what pin 3 and pin 2 on the RS232 connector on your K3 are.  

About the only sure way to figure out what is an active source is to look at a 
schematic or measure the pins with a volmeter/scope or get one of the RS232 
blinky boxes.

For some more information, have a look at 
http://www.ke7x.com/home/miscellaneous-k3-information/unexpected-agc-behavior/rs232-interfaces-1

For even more fun and games, read up on the history and use of the handshaking 
signals RTS, DTR, CTS and RTS.

Cheers,
Fred KE7X




From: Elecraft  on behalf of Don Wilhelm 

Sent: Monday, December 14, 2015 1:25 PM
To: char...@k5ua.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

Charles,

You should find the amp has a driver connected to pin 2.
To make sense of the signal directions, you have to know whether the
device is configured as DCE or a DTE.  Data Communications Equipment or
Data Terminal Equipment.  The 'transmit' and 'receive' signals are
relative to the DTE.  In other words, the signal on pin 2 (RXD) will
have a receicver in the DTE and a Driver in the DCE.  The PC is the DTE
and devices like the K3 and your amplifier are DCE type.

I know that the DTE/DCE designation for the PC does not make sense, but
the serial port of the PC started out to be a port which allowed the PC
to behave as a terminal.

73,
Don W3FPR


On 12/14/2015 2:50 PM, char...@k5ua.com wrote:
>
>
> Thanks for the detailed explanation Don. It seems like that is what is
> happening, the OM2500 may be sending info back on the line into the "Y"
> connector, confusing Na3P on the computer end on making the OM2500 jump
> frequency rapidly back and forth between the correct frequency and the
> out-of-band phantom frequency. From the responses, there may be 3
> possible solutions:
>
>

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Re: [Elecraft] Compatability of K3 EZ and the K3s

[Jim - KE8G]

Hi John,
Yes, I use the K3_EZ V2005 with Win7, 64 bit and it works perfectly fine.

73 de Jim - KE8G


 johnpierce  wrote: 
> Has anyone used the K3 EZ software on a windows computer with the K3s?  Is
> it compatible?
> 
>  
> 
> John, AD2F
> 
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Re: [Elecraft] High SWR below 40 meters

[George Dubovsky]

Now that you have a KAT-3, you have 2 antenna ports. Is there any chance
that the wrong one is selected for those bands?

73,

geo - n4ua

On Mon, Dec 14, 2015 at 4:27 PM, Jan Ditzian  wrote:

> My K3 has been having RF feedback problems with an 80 meter antenna.  In
> order to resolve things, I built an 80-meter dipole to use as a test
> antenna.  While all this was happening, over the past few months, I also
> added a used KAT-3 tuner and a KXYN3A to replace the original synthesizer.
>
> After building the dipole, I was puzzled that it would not tune up on 80.
> I do not know why it took me a week, but I finally checked out the rig on
> my dummy load.  It shows a high SWR on the dummy for all wavelengths
> greater than the 40-meter band--60, 80, and 160. The rig works just fine on
> 14 mHz. and up, and I can certainly tune it up on 40 meters.  Further
> checking shows that there is no output on 60-160, whether using the Tune
> mode at 5 watts or CW mode at 70 watts.
>
> I have no idea when or why this happened, but I really need to know the
> how it happened, so I can fix it.  Can someone give me some guidance on
> what to look at to figure this out?  It is possible that resolving this
> problem will also result in a resolution of the RF feedback problem,
> although I won't count on that.
>
> 73,
>
> Jan, KX2A
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Re: [Elecraft] K3s USB audio

[Cady, Fred]

No problem here with N1MM+ playing wav files through the USB audio codec. Or 
with WSJT or MMTTY.
In N1MM+ you have to (or can) have the wav files in a directory 
../wav/{operator}/...wav where {operator} is the call or name of the OPON 
operator.

I think the USB CODEC works great.  What you can't do, though is switch audio 
streams in SO2R, at least with the YCCC SO2R box.  At least I haven't figured 
out how to do that yet.  
Cheers,
Fred KE7X

For all KE7X Elecraft books, see www.ke7x.com




From: Elecraft  on behalf of Ed Muns 

Sent: Monday, December 14, 2015 1:23 PM
To: 'Barry N1EU'
Cc: 'elecraft'; wa...@elecraft.com
Subject: Re: [Elecraft] K3s USB audio

That sounds like a N1MM problem.  The K3 Codec shows up fine as a Windows
sound device.  And, it works well with Win-Test and WriteLog.  I haven't
tried it with N1MM Logger+.

Ed W0YK

-Original Message-
From: Barry N1EU [mailto:n1eu.ba...@gmail.com]
Sent: 14 December, 2015 11:27
To: e...@w0yk.com
Cc: wa...@elecraft.com; elecraft
Subject: Re: [Elecraft] K3s USB audio

It doesn't work with N1MM Logger+, probably the top application for
using SSB audio through the USB codec.  I believe the N1MM team is
investigating.

73, Barry N1EU

On Mon, Dec 14, 2015 at 2:20 PM, Ed Muns  wrote:
> The Codec deals with digitized audio of LINE IN and LINE OUT, independent
of
> mode.  It works fine for me in RTTY and I don't see why it wouldn't work
for
> SSB and other modes.
>
> A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
> spectrum.  Since most of the time that was not the case, I assumed it was
> intermittently coming from somewhere else.
>
> Ed W0YK
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Barry
> N1EU
> Sent: 14 December, 2015 02:28
> To: elecraft
> Cc: wa...@elecraft.com
> Subject: [Elecraft] K3s USB audio
>
> The K3s manual p18 makes no indication that USB digitzed audio is not
> supported in SSB.  Can anyone confirm that USB audio is actually NOT
> supported in SSB?
>
> On another note, I'm seeing a huge amount of 60hz hum being passed on
> the USB codec playback device, rendering it unusable for rig
> recording.  Has anybody else tried this?
>
> Thanks & 73,
> Barry N1EU
>
> On Mon, Dec 14, 2015 at 12:44 AM, Chris 
wrote:
>> Have you set your mode to digi my k3 only tx audio when I use it in digi
> mode not lsb or usb or cw
>>
>> Sent from my iPad
>> __
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[Elecraft] High SWR below 40 meters

[Jan Ditzian]

My K3 has been having RF feedback problems with an 80 meter antenna.  In 
order to resolve things, I built an 80-meter dipole to use as a test 
antenna.  While all this was happening, over the past few months, I also 
added a used KAT-3 tuner and a KXYN3A to replace the original synthesizer.


After building the dipole, I was puzzled that it would not tune up on 
80.  I do not know why it took me a week, but I finally checked out the 
rig on my dummy load.  It shows a high SWR on the dummy for all 
wavelengths greater than the 40-meter band--60, 80, and 160. The rig 
works just fine on 14 mHz. and up, and I can certainly tune it up on 40 
meters.  Further checking shows that there is no output on 60-160, 
whether using the Tune mode at 5 watts or CW mode at 70 watts.


I have no idea when or why this happened, but I really need to know the 
how it happened, so I can fix it.  Can someone give me some guidance on 
what to look at to figure this out?  It is possible that resolving this 
problem will also result in a resolution of the RF feedback problem, 
although I won't count on that.


73,

Jan, KX2A
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Re: [Elecraft] Frequency Memory Editor Software

[Dick Dievendorff]

This is fixed in the beta 1.5.7.20 version, which should soon be moved to 
production. Today you can get it from 

ftp://ftp.elecraft.com/tmp/FrequencyMemoryEditor/beta/

73 de Dick, K6KR

Sent from my iPhone

> On Dec 14, 2015, at 11:20, Stephen Shearer  wrote:
> 
> V 1.4.9.29  Win10
> OK, it reads and writes from my KX3.
> I can open/save from/to disk.
> I can copy/cut from the data but can't paste.
> Am I doing something wrong?
> 
> Steve WB3LGC
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Re: [Elecraft] K3 - No RX/TX

[Colin Thomas]

Thanks for that Alan,

I have reseated the board itself and the TMP connections but no difference.

73

Colin, G3PSM


On 14 December 2015 at 21:08, Alan Sewell N5NA  wrote:

> I had a similar problem a month or two ago.  I had upgraded my synthesizer
> back in February.  It turns out I had not fully seated all of the TMP
> connectors on the new KSYN3A.  It worked great for months, even running
> mobile for several QSO parties, before I had the problem.
>
> So, check those TMP connectors on your synthesizer board.
>
> 73, Alan N5NA
>
> On 12/14/2015 2:15 PM, elecraft-requ...@mailman.qth.net wrote:
>
>> Message: 12
>> Date: Mon, 14 Dec 2015 11:56:13 +
>> From: Colin Thomas
>> To:"elecraft@mailman.qth.net"  
>> Subject: [Elecraft] K3 - No RX/TX
>> Message-ID:
>> > nmvjupga_9jk7zwrxd+zldecb_+m...@mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> Hi all,
>>
>> Before I bother the good people at Elecraft support I would like some
>> thoughts on the above problem.
>>
>> I have bulit and used K3 s/no 8943 for the past 8 months or so but a
>> couple
>> of days ago it stopped both transmitting and receiving.   Yes I do have an
>> antenna on it and my old FT1000MP works fine.
>>
>> I have updated the firmware and carried out all the usual tests without
>> success.   A reset and a check through both the Menu and Config reveals
>> nothing obvious and TX Test shows TX normal.   Pressing TUNE shows 0 W.
>>
>> Keyer works, sidetone works, I have AF but no RF.
>>
>> Ideas please.
>>
>> 73
>>
>> Colin, G3PSM
>>
>
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Re: [Elecraft] Compatability of K3 EZ and the K3s

[Barry N1EU]

Yes

73, Barry N1EU

On Mon, Dec 14, 2015 at 8:15 PM, johnpierce  wrote:
> Has anyone used the K3 EZ software on a windows computer with the K3s?  Is
> it compatible?
>
>
>
> John, AD2F
>
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[Elecraft] K3 - No RX/TX

[Alan Sewell N5NA]

I had a similar problem a month or two ago.  I had upgraded my 
synthesizer back in February.  It turns out I had not fully seated all 
of the TMP connectors on the new KSYN3A.  It worked great for months, 
even running mobile for several QSO parties, before I had the problem.


So, check those TMP connectors on your synthesizer board.

73, Alan N5NA

On 12/14/2015 2:15 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 12
Date: Mon, 14 Dec 2015 11:56:13 +
From: Colin Thomas
To:"elecraft@mailman.qth.net"  
Subject: [Elecraft] K3 - No RX/TX
Message-ID:

Content-Type: text/plain; charset=UTF-8

Hi all,

Before I bother the good people at Elecraft support I would like some
thoughts on the above problem.

I have bulit and used K3 s/no 8943 for the past 8 months or so but a couple
of days ago it stopped both transmitting and receiving.   Yes I do have an
antenna on it and my old FT1000MP works fine.

I have updated the firmware and carried out all the usual tests without
success.   A reset and a check through both the Menu and Config reveals
nothing obvious and TX Test shows TX normal.   Pressing TUNE shows 0 W.

Keyer works, sidetone works, I have AF but no RF.

Ideas please.

73

Colin, G3PSM


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[Elecraft] K3 - No RX/TX

[Colin Thomas]

Thanks to everyone that has responded.   It looks like the KSYN3A has died
a death so time to contact Elecraft support.

73

Colin, G3PSM
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Don Wilhelm]

Charles,

You should find the amp has a driver connected to pin 2.
To make sense of the signal directions, you have to know whether the 
device is configured as DCE or a DTE.  Data Communications Equipment or 
Data Terminal Equipment.  The 'transmit' and 'receive' signals are 
relative to the DTE.  In other words, the signal on pin 2 (RXD) will 
have a receicver in the DTE and a Driver in the DCE.  The PC is the DTE 
and devices like the K3 and your amplifier are DCE type.


I know that the DTE/DCE designation for the PC does not make sense, but 
the serial port of the PC started out to be a port which allowed the PC 
to behave as a terminal.


73,
Don W3FPR


On 12/14/2015 2:50 PM, char...@k5ua.com wrote:
  


Thanks for the detailed explanation Don. It seems like that is what is
happening, the OM2500 may be sending info back on the line into the "Y"
connector, confusing Na3P on the computer end on making the OM2500 jump
frequency rapidly back and forth between the correct frequency and the
out-of-band phantom frequency. From the responses, there may be 3
possible solutions:




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Re: [Elecraft] K3s USB audio

[Ed Muns]

That sounds like a N1MM problem.  The K3 Codec shows up fine as a Windows
sound device.  And, it works well with Win-Test and WriteLog.  I haven't
tried it with N1MM Logger+.

Ed W0YK

-Original Message-
From: Barry N1EU [mailto:n1eu.ba...@gmail.com] 
Sent: 14 December, 2015 11:27
To: e...@w0yk.com
Cc: wa...@elecraft.com; elecraft
Subject: Re: [Elecraft] K3s USB audio

It doesn't work with N1MM Logger+, probably the top application for
using SSB audio through the USB codec.  I believe the N1MM team is
investigating.

73, Barry N1EU

On Mon, Dec 14, 2015 at 2:20 PM, Ed Muns  wrote:
> The Codec deals with digitized audio of LINE IN and LINE OUT, independent
of
> mode.  It works fine for me in RTTY and I don't see why it wouldn't work
for
> SSB and other modes.
>
> A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
> spectrum.  Since most of the time that was not the case, I assumed it was
> intermittently coming from somewhere else.
>
> Ed W0YK
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Barry
> N1EU
> Sent: 14 December, 2015 02:28
> To: elecraft
> Cc: wa...@elecraft.com
> Subject: [Elecraft] K3s USB audio
>
> The K3s manual p18 makes no indication that USB digitzed audio is not
> supported in SSB.  Can anyone confirm that USB audio is actually NOT
> supported in SSB?
>
> On another note, I'm seeing a huge amount of 60hz hum being passed on
> the USB codec playback device, rendering it unusable for rig
> recording.  Has anybody else tried this?
>
> Thanks & 73,
> Barry N1EU
>
> On Mon, Dec 14, 2015 at 12:44 AM, Chris 
wrote:
>> Have you set your mode to digi my k3 only tx audio when I use it in digi
> mode not lsb or usb or cw
>>
>> Sent from my iPad
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Re: [Elecraft] Frequency Memory Editor Software

[Al Lorona]

Hi, Steve,

I ran into that bug about a month ago. Dick Dievendorff sent me to elecraft.com 
to get a new version with the fix. You want to find version 1.15.8.18, bottom 
of the page.


http://www.elecraft.com/K3/k3_software.htm


R,

Al W6LX



From: Stephen Shearer 
To: ELECRAFT reflector ; k...@yahoogroups.com 
Sent: Monday, December 14, 2015 11:20 AM
Subject: [Elecraft] Frequency Memory Editor Software


V 1.4.9.29  Win10
OK, it reads and writes from my KX3.
I can open/save from/to disk.
I can copy/cut from the data but can't paste.
Am I doing something wrong?

Steve WB3LGC
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[Elecraft] Compatability of K3 EZ and the K3s

[johnpierce]

Has anyone used the K3 EZ software on a windows computer with the K3s?  Is
it compatible?

 

John, AD2F

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[Elecraft] K3S RS232 "Y" Connector causing port conflict

[charles]

 

Hi Steve,

I had just sent my last post before reading your post. I think you are
right, I failed to consider signals going from the PC back to the K3S,
they would go directly to the OM2500A as well. I guess using a different
virtual serial port under LP-Bridge as suggested by Larry N8LP is the
most promising solution since I am using LP-Bridge anyway for Na3P.

Thanks for your post. 

Charles K5UA

 
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[Elecraft] K3S RS232 "Y" Connector causing port conflict

[charles]

 

Thanks for the detailed explanation Don. It seems like that is what is
happening, the OM2500 may be sending info back on the line into the "Y"
connector, confusing Na3P on the computer end on making the OM2500 jump
frequency rapidly back and forth between the correct frequency and the
out-of-band phantom frequency. From the responses, there may be 3
possible solutions:

(1) I read N8LP's comment under a different thread heading than this
one. I am using his LP-Bridge program and LP-Pan hardware. Larry said
that I could use one of the extra serial ports in LP-Bridge to send data
to the OM2500A. I think that will work if I put a Serial to USB
converter coming out of the RS232 port on the OM2500A going back to a
USB port on the computer.

(2) If all else fails, I have used DDUTILl in the past to talk to the
OM2500A using the CI-V format into the CI-V port of the OM2500A. I don't
really want to use two virtual serial port programs (DDUTIL and
LP-Bridge), but I might have to try that.

(3) I will email OM Power to ask if I can put the OM2500A into "passive
listener" mode only. I thought that I might be able to accomplish the
same thing by removing the wire in the DB-9 cable that would carry
signals from the OM2500A back to the "Y connector, thereby making it a
"passive listener" by default. If you look at the K3S DB-9 wire
definitions in the manual, one of the wires is RX and one is TX. I was
thinking that if I removed the Line 3 TXD OUT pin from the cable going
to the OM2500A, any signals coming from the OM2500A would never get back
to the "Y" connector to confuse the computer that is listening on the
same line.

On page 18 of the manual there is a table of the DB-9 pin-out. Although
the names of the pins seem counter-intuitive to me.
Pin 2 (RXD IN) is used to _SEND_ data from the K3 _TO_ the PC and the
OM2500A.
Pin 3 (TXD OUT) is used to _RECEIVE_ data _FROM_ the PC or the OM2500A.

I'm thinking that removal of Pin 3 from the side of the "Y" splitter
that goes to the OM2500A will allow the OM2500A to _RECEIVE_ signals
from the K3S/PC _BUT NOT SEND_ signals to the K3S/PC. Does that make
sense? Would like to receive comments on these three possibilities.

Thanks for all who responded.

Charles K5UA

 
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Re: [Elecraft] K3s USB audio

[Barry N1EU]

It doesn't work with N1MM Logger+, probably the top application for
using SSB audio through the USB codec.  I believe the N1MM team is
investigating.

73, Barry N1EU

On Mon, Dec 14, 2015 at 2:20 PM, Ed Muns  wrote:
> The Codec deals with digitized audio of LINE IN and LINE OUT, independent of
> mode.  It works fine for me in RTTY and I don't see why it wouldn't work for
> SSB and other modes.
>
> A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
> spectrum.  Since most of the time that was not the case, I assumed it was
> intermittently coming from somewhere else.
>
> Ed W0YK
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Barry
> N1EU
> Sent: 14 December, 2015 02:28
> To: elecraft
> Cc: wa...@elecraft.com
> Subject: [Elecraft] K3s USB audio
>
> The K3s manual p18 makes no indication that USB digitzed audio is not
> supported in SSB.  Can anyone confirm that USB audio is actually NOT
> supported in SSB?
>
> On another note, I'm seeing a huge amount of 60hz hum being passed on
> the USB codec playback device, rendering it unusable for rig
> recording.  Has anybody else tried this?
>
> Thanks & 73,
> Barry N1EU
>
> On Mon, Dec 14, 2015 at 12:44 AM, Chris  wrote:
>> Have you set your mode to digi my k3 only tx audio when I use it in digi
> mode not lsb or usb or cw
>>
>> Sent from my iPad
>> __
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Re: [Elecraft] K3s USB audio

[Ed Muns]

The Codec deals with digitized audio of LINE IN and LINE OUT, independent of
mode.  It works fine for me in RTTY and I don't see why it wouldn't work for
SSB and other modes.

A couple times, I did see spikes at 60 Hz intervals in the RTTY audio
spectrum.  Since most of the time that was not the case, I assumed it was
intermittently coming from somewhere else.  

Ed W0YK

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Barry
N1EU
Sent: 14 December, 2015 02:28
To: elecraft
Cc: wa...@elecraft.com
Subject: [Elecraft] K3s USB audio

The K3s manual p18 makes no indication that USB digitzed audio is not
supported in SSB.  Can anyone confirm that USB audio is actually NOT
supported in SSB?

On another note, I'm seeing a huge amount of 60hz hum being passed on
the USB codec playback device, rendering it unusable for rig
recording.  Has anybody else tried this?

Thanks & 73,
Barry N1EU

On Mon, Dec 14, 2015 at 12:44 AM, Chris  wrote:
> Have you set your mode to digi my k3 only tx audio when I use it in digi
mode not lsb or usb or cw
>
> Sent from my iPad
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[Elecraft] Frequency Memory Editor Software

[Stephen Shearer]

V 1.4.9.29  Win10
OK, it reads and writes from my KX3.
I can open/save from/to disk.
I can copy/cut from the data but can't paste.
Am I doing something wrong?

Steve WB3LGC
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[Elecraft] K3/K3S FS: K3/Navigator Interface Cable Set

[Terry Schieler]

I have the factory-built K3 Navigator sound card Interface Cable set that I no 
longer need.  It is like new.  Current price from Timewave is $54.95 +$7.50 
shipping.  I am selling it for $30 shipped (US).  Please contact me directly if 
interested at: mycall at arrl dot net.  Thanks.

73,

Terry, W0FM



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Re: [Elecraft] K3 EZ

[Chuck Milam, N9KY]

On Sun, Dec 13, 2015 at 5:51 PM, Jerry  wrote:

> My advice, stay away from the "free" stuff on the internet. It
> is not like the young lady says in the commercial "They can't lie on the
> internet, can they?"
>

Beware painting with too broad a brush.  There's "free" and there's
"free."

https://opensource.com/life/15/12/dear-parents-let-your-kids-use-open-source-software

-- 
Chuck Milam, N9KY
n...@arrl.net
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[Elecraft] My KX3 and PX3 Kits Have Arrived

[Mark Tosiello]

Hi,

I'm extremely excited. My KX3 and PX3 kits and assorted goodies arrived 2
days ago. I have to build 2 computers before I got to open the boxes, but
last night I build the KX3. It was a pleasure to build, the instructions
were excellent, and save for having a minor bit of trouble making SURE the
4 pin connector of the ATU was seated, I had no issues. Bending the toroid
under the antenna connector was a challenge, but I did it with a small
hemostat, and it worked well. One of the windings seemed a little loose
after I did so, but I don't think there will be an issue.

Smoke test was fine, fired it up and enabled the autotuner. Not much on the
bands, but I was able to confirm reception of some CW that my IC-746 Pro
could barely hear.  All in all, a fun nite.

Tonight, I build the PX3!

Just thought I'd share.

Mark
KD8EDC

-- 

*"The Gun Lobby's interpretation of the Second Amendment is one of the
greatest pieces of fraud, I repeat the word, fraud, on the American People
by special interest groups that I have ever seen in my lifetime. The real
purpose of the Second Amendment was to ensure that state armies - the
militias_ would be maintained for defense of the state. The very language
of the Second Amendment refutes any argument that it was intended to
guaruntee every citizen an unfettered right to any kind of weapon he or she
desires*" - *Supreme Court Justice Warren Burger*
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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Josh]

The OM2500A has 2 serial ports. It is designed to be patched inline between a 
computer and the K3. 

73,
Josh W6XU

Sent from my mobile device

> On Dec 14, 2015, at 5:11 AM, Don Wilhelm  wrote:
> 
> Charles,
> 
> I don't know the specifics of your OM2500A amplifier, but I do know about 
> RS-232.
> First, RS-232 is a point to point system.  The use of "Y" connectors is not 
> the norm and are applicable only under certain specific conditions.
> Those conditions are that the device added by the "Y" connection has no 
> active drivers on the RS-232 signals - only line receivers are permitted.
> 
> Think of it this way - a driver on an RS-232 line can have a negative voltage 
> of up to -25 volts, and a positive voltage of up to +25 volts.
> Imagine that one driver is trying to produce -25 volts while the other driver 
> is trying to produce +25 volts.  In other words, they 'fight' with one 
> another, and the result is 'confusion' because the receiver listening on that 
> RS-232 signal line will not respond to a voltage that is less than 3 volts 
> positive.
> 
> In other words, use a "Y" connector only when the added device is capable of 
> being put into a "listen only" mode (with its drivers disabled).
> Look at your amplifier information carefully to see if it can be placed in a 
> "listen only" mode.  If not, you cannot use it with a "Y" connector.
> 
> The SteppIR is one example of a device that can be placed in listen only 
> mode, so the use of a "Y" connector is possible, but that is not the general 
> case.
> 
> Bottom line, you can connect only *one* RS-232 device to another in the 
> general case.  Introducing a 3rd RS-232 device (with a "Y" connector) 
> requires special conditions be present in that 3rd device - it must only 
> listen to the data traffic and not attempt to transmit data.
> 
> 73,
> Don W3FPR
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Re: [Elecraft] K3 EZ

[Don Wilhelm]

If you are using Norton, then things like that are to be expected.
Norton uses a "useless" algorithm - if it has not had experience with 
the files, it flags them as possibly having malware.


73,
Don W3FPR

On 12/13/2015 1:32 PM, Jim Lowman wrote:
I received a warning when I downloaded all three Zip files, about 
their possibly containing malware.


Did anyone else experience this?



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Re: [Elecraft] A KX3 oddity????

[Don Wilhelm]

Jerry,

It is good that you have contacted the station.  I would suspect that 
the station is using an IF frequency of 435kHz and that is being radiated.
Things like that happen - I would not suspect that it is any fault of 
the KX3.


73,
Don W3FPR

On 12/13/2015 6:43 PM, Jerry wrote:

Good Sunday evening,

  


I was playing around with my KX3  on the AM band this morning and moved the
receiver down to 435 Khz where I picked up an extremely loud signal. This
signal  turned out to be a radio station WiQO which broadcasts on 100.9 and
is located about 12 miles from my home.

  


The station does not have an AM presence and here are some of the
specifications of the FM radio station WIQO;



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Re: [Elecraft] K3S RS232 "Y" Connector causing port conflict

[Don Wilhelm]

Charles,

I don't know the specifics of your OM2500A amplifier, but I do know 
about RS-232.
First, RS-232 is a point to point system.  The use of "Y" connectors is 
not the norm and are applicable only under certain specific conditions.
Those conditions are that the device added by the "Y" connection has no 
active drivers on the RS-232 signals - only line receivers are permitted.


Think of it this way - a driver on an RS-232 line can have a negative 
voltage of up to -25 volts, and a positive voltage of up to +25 volts.
Imagine that one driver is trying to produce -25 volts while the other 
driver is trying to produce +25 volts.  In other words, they 'fight' 
with one another, and the result is 'confusion' because the receiver 
listening on that RS-232 signal line will not respond to a voltage that 
is less than 3 volts positive.


In other words, use a "Y" connector only when the added device is 
capable of being put into a "listen only" mode (with its drivers disabled).
Look at your amplifier information carefully to see if it can be placed 
in a "listen only" mode.  If not, you cannot use it with a "Y" connector.


The SteppIR is one example of a device that can be placed in listen only 
mode, so the use of a "Y" connector is possible, but that is not the 
general case.


Bottom line, you can connect only *one* RS-232 device to another in the 
general case.  Introducing a 3rd RS-232 device (with a "Y" connector) 
requires special conditions be present in that 3rd device - it must only 
listen to the data traffic and not attempt to transmit data.


73,
Don W3FPR

On 12/13/2015 10:52 AM, char...@k5ua.com wrote:
  


I have an OM2500A amp that works perfectly with my K3S when it is the
only thing connected to the RS232 of my K3S.

I am using LP-Bridge and Na3P to create a panadapter and this works
perfectly when the computer is the only thing connected to the RS232 of
my K3S.

The manual shows how to use a RS232 "Y" splitter so that two devices can
share the RS232 port of the K3S, but when I use the "Y" splitter (one
side to the OM2500A amp and one side to the computer) the following
malfunctions occur:

1. The OM2500A display rapidly changes from the correct VFO frequency to
an out-of-band frequency over 2 Mhz away.
2. The pandapter frequency readout ceases to function.

I assume there is a port conflict, and I wonder if anyone knows the
correct pin-out of the RS232 line to the OM amp so that it will be a
passive listener on the DB9 cable?




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[Elecraft] K3: HRD help

[kg9hfr...@gmail.com]

Off line response please to fr...@electronicinstrument.com 

I am trying to figure out how to implement the PS0 command.

Have been using HRD now for years with a TS-590 and want to migrate completely 
to the K3.
I have the latest HRD as well as a K3 / RS-232 and Windows 7 Professional 64 
bit.


Frank KG9H

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Re: [Elecraft] RFI in audio chain

[Jim Bolit]

Uglies DON'T WORK WELL

Use ferrite

Jim
W6AIM



.



 Original message 
From: Jan Ditzian 
Date: 11/22/2015 4:33 PM (GMT-08:00)
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] RFI in audio chain

In response to the balun recommendation from several hams, I apologize
for forgetting to mention that the vertical has an "ugly balun" both at
the antenna and near where the feedline enters the house.

Part of the reason I put the question to this group, after first
thinking that the amps group could help, was the fact that the IC-730
shows no RFI, while the K3 shows extreme RFI.

Thanks,

Jan, KX2A

On 11/22/2015 6:36 PM, John Kramer wrote:
> Jan
>
> The easiest, quickest and cheapest method is to wind yourself an “ugly balun” 
> in your coax cable line.
> It must be located OUTSIDE your shack to choke the common mode currents from 
> entering the shack.
> Wind about 15 - 20 turns of your coax on a 6” PVC pipe. This will give you 
> about 2500 ohms choking
> impedance.
>
> If there is still RFI getting in the shack, then purchase a commercial choke 
> either from
> http://www.balundesigns.com/model-1115d-max-choking-1-1-balun-1-54-mhz-5kw/
> this will provide about 10 - 12 000 ohms of choking impedance, or buy one from
>
> http://myantennas.com/wp/product/cmc-130-3k/
> This one will give from 12 000 - 15 000 ohms of choking impedance.
>
> These common mode chokes merely get plugged inline in your coax cable. Always 
> better to locate
> them outside the shack
>
> 73
> John
>
>
>
>
> On 23 Nov 2015, at 1:02 AM, Jan Ditzian  wrote:
>
> I have a problem that appears to be changing, but I could use some help.  The 
> problem is RFI in the audio input (microphone input) when I use my vertical 
> antenna on 40 meters.  Here is a rundown of what has happened:
>
> I have a 67-foot elevated vertical that I can use on 80 and 40, and it works 
> fine on CW.  However, on SSB, both bands, there clearly is feedback; there is 
> no feedback on the other bands where I use a C3 yagi.  Initially, the 
> feedback was so bad that the rig would go into oscillation, and I had to turn 
> the amp to standby.
>
> I recently purchased the new KSYN3A and decided to install it.  I replaced 
> the K3 with my IC-730 backup, using the hand microphone that came with the 
> 730.  The 730 did not have any RFI.  I finished the modification and returned 
> the K3 as the operating rig.  Now, the RFI on 40 seems to have diminished 
> substantially or disappeared, but it still happens on 75/80.  However, it 
> seems to be much less there as well.  I do not suspect that the KSYN3A had 
> anything to do with this, but perhaps I tightened connections better when I 
> returned the rig to service.  I also redid some ground connections.
>
> The microphone for the K3 is an Audio-Technica that works well everywhere 
> else.  It has a long cord, though.  I put a few toroids on the cord near the 
> microphone connector and that has possibly reduced RFI a little, but it is 
> still there.
>
> Is there a possibility that a bypass capacitor is bad, or has someone else 
> had the problem and solved it externally to the K3? For instance, has anyone 
> found that a long string of ferrite beads has cured this problem?
>
> Despite decades of operating, I am hardly a troubleshooting hotshot, and I 
> would appreciate guidance.
>
> Thank you,
>
> Jan, KX2A
>
>
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Re: [Elecraft] RFI in audio chain

[Jim Bolit]

Ugly baluns are a P O O R  choice. Don't waste ur time with one.  Use a ferrite
choke with a min of 3k ohms resistive at freq of interest.

Jim
W6AIM

.



 Original message 
From: John Kramer 
Date: 11/22/2015 3:38 PM (GMT-08:00)
To: Jan Ditzian 
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] RFI in audio chain

Jan

The easiest, quickest and cheapest method is to wind yourself an “ugly balun” 
in your coax cable line.
It must be located OUTSIDE your shack to choke the common mode currents from 
entering the shack.
Wind about 15 - 20 turns of your coax on a 6” PVC pipe. This will give you 
about 2500 ohms choking
impedance.

If there is still RFI getting in the shack, then purchase a commercial choke 
either from
http://www.balundesigns.com/model-1115d-max-choking-1-1-balun-1-54-mhz-5kw/
this will provide about 10 - 12 000 ohms of choking impedance, or buy one from

http://myantennas.com/wp/product/cmc-130-3k/
This one will give from 12 000 - 15 000 ohms of choking impedance.

These common mode chokes merely get plugged inline in your coax cable. Always 
better to locate
them outside the shack

73
John




On 23 Nov 2015, at 1:02 AM, Jan Ditzian  wrote:

I have a problem that appears to be changing, but I could use some help.  The 
problem is RFI in the audio input (microphone input) when I use my vertical 
antenna on 40 meters.  Here is a rundown of what has happened:

I have a 67-foot elevated vertical that I can use on 80 and 40, and it works 
fine on CW.  However, on SSB, both bands, there clearly is feedback; there is 
no feedback on the other bands where I use a C3 yagi.  Initially, the feedback 
was so bad that the rig would go into oscillation, and I had to turn the amp to 
standby.

I recently purchased the new KSYN3A and decided to install it.  I replaced the 
K3 with my IC-730 backup, using the hand microphone that came with the 730.  
The 730 did not have any RFI.  I finished the modification and returned the K3 
as the operating rig.  Now, the RFI on 40 seems to have diminished 
substantially or disappeared, but it still happens on 75/80.  However, it seems 
to be much less there as well.  I do not suspect that the KSYN3A had anything 
to do with this, but perhaps I tightened connections better when I returned the 
rig to service.  I also redid some ground connections.

The microphone for the K3 is an Audio-Technica that works well everywhere else. 
 It has a long cord, though.  I put a few toroids on the cord near the 
microphone connector and that has possibly reduced RFI a little, but it is 
still there.

Is there a possibility that a bypass capacitor is bad, or has someone else had 
the problem and solved it externally to the K3? For instance, has anyone found 
that a long string of ferrite beads has cured this problem?

Despite decades of operating, I am hardly a troubleshooting hotshot, and I 
would appreciate guidance.

Thank you,

Jan, KX2A


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[Elecraft] K3 - No RX/TX

[Colin Thomas]

Hi all,

Before I bother the good people at Elecraft support I would like some
thoughts on the above problem.

I have bulit and used K3 s/no 8943 for the past 8 months or so but a couple
of days ago it stopped both transmitting and receiving.   Yes I do have an
antenna on it and my old FT1000MP works fine.

I have updated the firmware and carried out all the usual tests without
success.   A reset and a check through both the Menu and Config reveals
nothing obvious and TX Test shows TX normal.   Pressing TUNE shows 0 W.

Keyer works, sidetone works, I have AF but no RF.

Ideas please.

73

Colin, G3PSM
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Re: [Elecraft] K3 EZ

[NZ0T]

I have  MS.Net installed but I think it may be that I am 64 bit but K3 EZ is
32 bit.  I'll keep working on it.



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[Elecraft] K3s USB audio

[Barry N1EU]

The K3s manual p18 makes no indication that USB digitzed audio is not
supported in SSB.  Can anyone confirm that USB audio is actually NOT
supported in SSB?

On another note, I'm seeing a huge amount of 60hz hum being passed on
the USB codec playback device, rendering it unusable for rig
recording.  Has anybody else tried this?

Thanks & 73,
Barry N1EU

On Mon, Dec 14, 2015 at 12:44 AM, Chris  wrote:
> Have you set your mode to digi my k3 only tx audio when I use it in digi mode 
> not lsb or usb or cw
>
> Sent from my iPad
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