Re: [Elecraft] K3 Firmware 2.10,1.81 problems

2008-06-27 Thread G4ILO


A.K.Forrest wrote:
 
 Dear All.
 
 operating a K3 with latest beta firmware, using PSK on data modes with 
 MixW. The frequency display on MixW now shows incorrect frequencies for 
 the signals received in data mode. On SSB frequencies displayed appear 
 correct. On data they appear about 3KHz low and on data reverse about 
 3KHz high. This tested on 20m band.  Everything OK before update.
 
 Anyone else seeing this behaviour? or is it me that has the problem?
 
 
I don't normally use MixW any more but I just fired it up to check, and it
seems OK to me. With the transceiver set to 14.072.000 MixW is showin
exactly that in its frequency display window, and the waterfall is showing a
chunk of band centered on 14071, which is correct assuming that the K3 uses
LSB in data mode.

The K3 was erroneously reporting the data modes as reversed, and this was
corrected in the latest firmware release. I suspect that this might have
something to do with your problem, but since I can't see the problem myself
I'm not sure what it is. Perhaps you used the options in the CAT setup
screen to compensate for the previously incorrect frequency offset, and now
need to take that settimg out. The CAT correction options are all 0 in my
case.

-
Julian, G4ILO  K3 s/n: 222 K2 s/n: 392
G4ILO's Shack: www.g4ilo.com
KComm for K2/K3: www.g4ilo.com/kcomm.html
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Re: [Elecraft] K3 Firmware 2.10,1.81 problems Update

2008-06-27 Thread G4ILO


A.K.Forrest wrote:
 
 Dear All,
 
 did some more on the problem. With MixW using modes RTTY or RTTYR when 
 controlled by a K3 in data mode
 the frequency scale moves to the right but the signal moves to the left. 
 They should obviously be in step i.e the
 display should show a signal at a constant frequency as the radio is 
 tuned. This works
 correctly in USB and LSB.  MixW thinks the radio mixer frequency is on 
 the opposite side of the signal to reality.
 
 To attempt to solve the problem I reloaded the K3 software; no change. I 
 then went back to the-non beta 2.02 etc
 software; everything now working correctly.  I am pretty sure that this 
 is a real problem but maybe only for MixW
 users using the RTTY modes. It is a problem for us though, because by 
 using USB or LSB modes in MixW
 automatically switches the K3 to the same modes. This prevents use of 
 the K3 data mode features such as prevention
 of compression and other data special settings.
 
 Julian (G4ILO) thanks for your interest. All my CAT corrections are zero 
 in MixW also. Interesting that you say there
 was some change in the last release - K3 was erroneously reporting the 
 data modes as reversed This looks very much
 like the problem but in the case of RTTY it seems it was correct but is 
 now incorrect.
 
 Hope this all gets sorted in version 2.11  Keep up the good work on the 
 software and I agree with the release of beta
 software so that we can test all the nooks and crannies.
 
  73 Andrew M1KAZ
 
 
I think this is a problem with MixW, not the K3 firmware, which may have
inadvertently been correct due to the K3's reversal of its mode reporting.

In my version of MixW the radio type is set to Elecraft K2. There is no K3
option. The K2 option was a derivative of the Kenwood option, in fact it is
listed under Kenwood on the CAT selection dialog.

I was one of the first K2 owners to use MixW, many years ago. Unfortunately
my memory now is not very good, but I seem to recall that I originally had
the exact same problem as you with the K2 and MixW. I think that the K2 used
opposite sidebands to the Kenwood radios (and probably to the K3 as well.) I
emailed Nick, the developer of MixW, about it, and he fixed it in the next
release. So if my supposition is correct, the K2 option in MixW works right
for the K2, but not for the K3.

I think MixW needs to be corrected to work with the current K3 firmware,
which is now correctly reporting the data modes in software to correspond
with what is shown on the front panel. In the meantime, you might find that
switching to the TS-2000 option solves the problem. I very much doubt if
MixW uses any commands that are exclusive to the Elecraft radios, so this is
almost certain to be OK.

-
Julian, G4ILO  K3 s/n: 222 K2 s/n: 392
G4ILO's Shack: www.g4ilo.com
KComm for K2/K3: www.g4ilo.com/kcomm.html
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Re: [Elecraft] K3 Firmware 2.10,1.81 problems Update

2008-06-27 Thread G4ILO

No, the TS-2000 option doesn't work either. I have a feeling that the issue
with the K2 that I referred to affected only certain bands, where the K2
switched the sideband used by default. It only became apparent to me because
I used a macro to bring a selected signal to the center of the passband and
on some bands the signal moved the wrong way.

I can't find an option that works right with the K3 at the moment. However,
the K3 is now correctly reporting the data modes as mode 6 = normal and mode
9 = reversed, as defined in the reference manual. Previously it had them
reversed. I think that rather than redefine the mode values so that they are
the opposite of the K2, MixW needs to be updated. I expect that Simon has
already updated HRD to take account of the change, as he was told about it a
couple of weeks ago.

-
Julian, G4ILO  K3 s/n: 222 K2 s/n: 392
G4ILO's Shack: www.g4ilo.com
KComm for K2/K3: www.g4ilo.com/kcomm.html
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RE: [Elecraft] K3 Firmware 2.10,1.81 problems

2008-06-27 Thread Joe Subich, W4TV

I suspect this is an issue of MixW not correctly interpreting the 
information received from the K3.  When in Data modes, the frequency 
reported by the K3 will vary depending on which data sub mode is in 
use. 

Data  Default
sub-mode  sideband   Reported frequency

 FSK D  LSB  RTTY MARK 
AFSK A  LSB  RTTY MARK 
DATA A  USB  USB/LSB CARRIER frequency 
 PSK D  USB  RF frequency (carrier +/- 1 KHz)

MixW assumes data modes from the K2 are LSB (there is no separate 
K3 driver).  The firmware error prior to the new beta caused 
MixW to get the sideband right for Data A by chance.  Mix W's K2 
setting assumes that the CAT data represents VFO frequency (or 
carrier) instead of 'MARK' as the K3 reports.  If you use FSK D 
and AFSK A with a standard  2125 Hz Mark, set the Digi Cat 
correction to -2125.  If you are using FSK D, set FSK center 
fq to 2210 [(2125 + 2295)/2] ... if you are using AFSK A, check 
AFSK in place of FSK 

With Data A, I’m afraid that the author of MixW will need to  
create a new K3 driver that assumes USB operation in data modes. 
Ideally, before then Wayne will have time to implement separate 
mode get/set commands (on the list) for the digital submodes 
(FSK D: MD6;/MD9;, AFSK A: MD8;/MDC;, and DATA A: MDA;/MDD;) so 
MixW (and other digital software) can tell which mode is being 
used from the IF; response.  Then when the authors of MixW (and 
other software) do K3 specific support they will be able to 
properly need to do a K3 setting to reflect carrier vs. RF and 
sideband for each of the digital sub-modes. 

73, 

   ... Joe, W4TV 
 



 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Forrest
 Sent: Friday, June 27, 2008 6:31 AM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] K3 Firmware 2.10,1.81 problems
 
 
 Dear All.
 
 operating a K3 with latest beta firmware, using PSK on data 
 modes with MixW. The frequency display on MixW now shows 
 incorrect frequencies for the signals received in data mode. 
 On SSB frequencies displayed appear correct. On data they 
 appear about 3KHz low and on data reverse about 3KHz high. 
 This tested on 20m band.  Everything OK before update.
 
 Anyone else seeing this behaviour? or is it me that has the 
 problem?
 
 thanks
 
   73 Andrew M1KAZ
 
 
 
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Re: [Elecraft] K3 Firmware 2.10,1.81 problems Update

2008-06-27 Thread Rich (KE0X)

As Julian suggested the problem is in MixW.  It has been 40 years since I had
the RTTY training course in the NAVY, but, it has to do with the convoluted
history of RTTY.  Although SSB is on the LSB on the HF bands below 30 Meters
and USB on those bands above 30 meters (Many reasons given for this most of
which are not correct) RTTY was based upon the frequency of Mark (2125) and
Space (2295) and the surplus military equipment available, unless you could
afford some of the high dollar HAL equipment (which was also used by the
military).  Military protocol was to have the Mark the lowest tone in
frequency. This was ok with most equipment made BPC (Before Personnel
Computers).  The PC brought out the conversion of telephone modems, use of
the modem IC’s and finally the PC sound card for generating these tones. If
you built a TNC out of a modem chip and did not include a reverse switch you
were stuck to either the low or high bands.  This was fixed on the PC with a
button to reverse the signal that you could click on and copying.  Some of
the Rigs treat RTTY as SSB, others put RTTY so that the Mark is always the
lowest frequency transmitted regardless of the band selected, and RTTYR
reverses this.  I have no idea what the protocol is for DATA (perhaps
Elecraft can tell us.)  As an experiment, try switching rigs in MixW and
observe what is happening to the signal frequency.  You wil not be able to
chang frequency with MixW but you can see what happens to the signal as you
turn the dial on the RIG.

Rich,
KE0X


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RE: [Elecraft] K3 Firmware 2.10,1.81 problems Update

2008-06-27 Thread Joe Subich, W4TV

 RTTY was based upon the frequency 
 of Mark (2125) and Space (2295) and the surplus military 
 equipment available, unless you could afford some of the high 
 dollar HAL equipment (which was also used by the military). 

No, RTTY is always Shift low - that is Mark is the HIGHER 
RF frequency and space is the LOWER RF frequency.  When the 
audio tones 2215 and 2295 are applied to a LSB transmitter 
in AFSK this results in the correct shift. 

 I have no idea what the protocol is for DATA (perhaps Elecraft 
 can tell us.)  As an experiment, try switching rigs in MixW and 
 observe what is happening to the signal frequency.  

FSK D and AFSK A receive in LSB while PSK D and DATA A receive in 
USB for compatibility with the (backward) convention of most non-
RTTY software writers (PSK32, MFSK, etc.). 

73, 

   ... Joe, W4TV 
 




 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of Rich (KE0X)
 Sent: Friday, June 27, 2008 4:49 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] K3 Firmware 2.10,1.81 problems Update
 
 
 
 As Julian suggested the problem is in MixW.  It has been 40 
 years since I had the RTTY training course in the NAVY, but, 
 it has to do with the convoluted history of RTTY.  Although 
 SSB is on the LSB on the HF bands below 30 Meters and USB on 
 those bands above 30 meters (Many reasons given for this most 
 of which are not correct) RTTY was based upon the frequency 
 of Mark (2125) and Space (2295) and the surplus military 
 equipment available, unless you could afford some of the high 
 dollar HAL equipment (which was also used by the military).  
 Military protocol was to have the Mark the lowest tone in 
 frequency. This was ok with most equipment made BPC (Before 
 Personnel Computers).  The PC brought out the conversion of 
 telephone modems, use of the modem IC’s and finally the PC 
 sound card for generating these tones. If you built a TNC out 
 of a modem chip and did not include a reverse switch you were 
 stuck to either the low or high bands.  This was fixed on the 
 PC with a button to reverse the signal that you could click 
 on and copying.  Some of the Rigs treat RTTY as SSB, others 
 put RTTY so that the Mark is always the lowest frequency 
 transmitted regardless of the band selected, and RTTYR 
 reverses this.  I have no idea what the protocol is for DATA 
 (perhaps Elecraft can tell us.)  As an experiment, try 
 switching rigs in MixW and observe what is happening to the 
 signal frequency.  You wil not be able to chang frequency 
 with MixW but you can see what happens to the signal as you 
 turn the dial on the RIG.
 
 Rich,
 KE0X
 
 
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Re: [Elecraft] K3 Firmware 2.10,1.81 problems Update

2008-06-27 Thread Jack Smith
Those of us who have been around RTTY before the days of electronic 
printers remember the second meaning of LSMFT - low space means fine 
teletype. (refers to the RF frequency, not the demodulated audio of course.)



Jack K8ZOA
www.cliftonlaboratories.com


Joe Subich, W4TV wrote:
RTTY was based upon the frequency 
of Mark (2125) and Space (2295) and the surplus military 
equipment available, unless you could afford some of the high 
dollar HAL equipment (which was also used by the military). 



No, RTTY is always Shift low - that is Mark is the HIGHER 
RF frequency and space is the LOWER RF frequency.  When the 
audio tones 2215 and 2295 are applied to a LSB transmitter 
in AFSK this results in the correct shift. 

  
I have no idea what the protocol is for DATA (perhaps Elecraft 
can tell us.)  As an experiment, try switching rigs in MixW and 
observe what is happening to the signal frequency.  



FSK D and AFSK A receive in LSB while PSK D and DATA A receive in 
USB for compatibility with the (backward) convention of most non-
RTTY software writers (PSK32, MFSK, etc.). 

73, 

   ... Joe, W4TV 
 





  

-Original Message-
From: [EMAIL PROTECTED] 
[mailto:[EMAIL PROTECTED] On Behalf Of Rich (KE0X)

Sent: Friday, June 27, 2008 4:49 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Firmware 2.10,1.81 problems Update



As Julian suggested the problem is in MixW.  It has been 40 
years since I had the RTTY training course in the NAVY, but, 
it has to do with the convoluted history of RTTY.  Although 
SSB is on the LSB on the HF bands below 30 Meters and USB on 
those bands above 30 meters (Many reasons given for this most 
of which are not correct) RTTY was based upon the frequency 
of Mark (2125) and Space (2295) and the surplus military 
equipment available, unless you could afford some of the high 
dollar HAL equipment (which was also used by the military).  
Military protocol was to have the Mark the lowest tone in 
frequency. This was ok with most equipment made BPC (Before 
Personnel Computers).  The PC brought out the conversion of 
telephone modems, use of the modem IC’s and finally the PC 
sound card for generating these tones. If you built a TNC out 
of a modem chip and did not include a reverse switch you were 
stuck to either the low or high bands.  This was fixed on the 
PC with a button to reverse the signal that you could click 
on and copying.  Some of the Rigs treat RTTY as SSB, others 
put RTTY so that the Mark is always the lowest frequency 
transmitted regardless of the band selected, and RTTYR 
reverses this.  I have no idea what the protocol is for DATA 
(perhaps Elecraft can tell us.)  As an experiment, try 
switching rigs in MixW and observe what is happening to the 
signal frequency.  You wil not be able to chang frequency 
with MixW but you can see what happens to the signal as you 
turn the dial on the RIG.


Rich,
KE0X


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RE: [Elecraft] K3 Firmware 2.10,1.81 problems Update

2008-06-27 Thread G4ILO


Joe Subich, W4TV-3 wrote:
 
 
 FSK D and AFSK A receive in LSB while PSK D and DATA A receive in 
 USB for compatibility with the (backward) convention of most non-
 RTTY software writers (PSK32, MFSK, etc.). 
 

... which makes it difficult for any program to know what to do since at the
moment it is (almost) impossible for a program to tell which of these data
mode options have been selected on the radio.

-
Julian, G4ILO  K3 s/n: 222 K2 s/n: 392
G4ILO's Shack: www.g4ilo.com
KComm for K2/K3: www.g4ilo.com/kcomm.html
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