RE: [multipsk] 1200 Baud ASCII (Bell 202 modem tones) with MultiPSK?


Apr 3, 2006

 


----------------------------

#1427 Apr 3, 2006

Can someone listen to the brief mp3 file at



www.obriensweb.com/hell.mp3





Something is very "odd" sounding with my Feld Hell tones in Mixw,

whereas in Muptipsk the tones sound good to me. Same audio settings

in the soundcard.



The audio file starts with Multipsk tones, then after the 3 seconds of

silence the MixW Feld Hell tones start. The tones are recorded via

PC mic near my PC speakers, hence the slight variation in volume

levels.



A couple of the people I have worked with MixW Hell say my tones sound

fine at their end but I get a lot of no answers when using MixW Hell

versus Hell in Multipsk.





--

Andy K3UK



----------------------------

#1428 Apr 3, 2006

Andy,



It starts out OK, but I don't hear anything but Feld Held tones in the

beginning. Then there is a break and then it is as if the drive is

increased to an excessive degree and that begins causing severe

distortion (clipping, etc.) in the audio. Did the sound card sliders

increase audio in the second half?



73,



Rick, KV9U









Andrew O'Brien wrote:

>Can someone listen to the brief mp3 file at

>

>www.obriensweb.com/hell.mp3

>

>

>Something is very "odd" sounding with my Feld Hell tones in Mixw,

>whereas in Muptipsk the tones sound good to me. Same audio settings

>in the soundcard.

>

>The audio file starts with Multipsk tones, then after the 3 seconds of

>silence the MixW Feld Hell tones start. The tones are recorded via

>PC mic near my PC speakers, hence the slight variation in volume

>levels.

>

>A couple of the people I have worked with MixW Hell say my tones sound

>fine at their end but I get a lot of no answers when using MixW Hell

>versus Hell in Multipsk.

>

>

>--

>Andy K3UK

>

>

>



----------------------------

#1429 Apr 3, 2006

Rick,



Exactly my response (in the digitalradio forum). It certainly *seems*

like a large excusion in drive levels....the first tone set seems

fine - the second very clipped as if over-driven.



73



Bill - N9DSJ

--- In multipsk@yahoogroups.com, KV9U mrfarm@...> wrote:

>

> Andy,

>

> It starts out OK, but I don't hear anything but Feld Held tones in

the

> beginning. Then there is a break and then it is as if the drive is

> increased to an excessive degree and that begins causing severe

> distortion (clipping, etc.) in the audio. Did the sound card

sliders

> increase audio in the second half?

>

> 73,

>

> Rick, KV9U

>

>

>

>

> Andrew O'Brien wrote:

>

> >Can someone listen to the brief mp3 file at

> >

> >www.obriensweb.com/hell.mp3

> >

> >

> >Something is very "odd" sounding with my Feld Hell tones in Mixw,

> >whereas in Muptipsk the tones sound good to me. Same audio

settings

> >in the soundcard.

> >

> >The audio file starts with Multipsk tones, then after the 3

seconds of

> >silence the MixW Feld Hell tones start. The tones are recorded via

> >PC mic near my PC speakers, hence the slight variation in volume

> >levels.

> >

> >A couple of the people I have worked with MixW Hell say my tones

sound

> >fine at their end but I get a lot of no answers when using MixW

Hell

> >versus Hell in Multipsk.

> >

> >

> >--

> >Andy K3UK

> >

> >

> >

>



----------------------------

#1430 Apr 3, 2006

The drive levels for the two programs is exactly the same.  The MixW sick tones do not change even if I lower the drive level..  At the same drive level in MixW all other modes have good sounding tones.  Only Hell sound this bad.





On 4/3/06, Bill McLaughlin bmc@...> wrote:Rick,



Exactly my response (in the digitalradio forum). It certainly *seems*

like a large excusion in drive levels....the first tone set seems

fine - the second very clipped as if over-driven.



73



----------------------------

#1435 Apr 4, 2006

Hello Andy, I agree with Rick. The second signal seemsover-driven.I've controlled. Mixw and Multipsk have about thesame output power in Feld Hell (with the same slider position).  73Patrick ----- Original Message -----From:KV9UTo: multipsk@yahoogroups.comSent: Tuesday, April 04, 2006 4:51AMSubject: Re: [multipsk] Sick Feld HellTones in MixW

Andy,

It starts out OK, but I don't hearanything but Feld Held tones in the beginning. Then there is a break andthen it is as if the drive is increased to an excessive degree and thatbegins causing severe distortion (clipping, etc.) in the audio. Did thesound card sliders increase audio in the secondhalf?

73,

Rick, KV9U



Andrew O'Brienwrote:

>Can someone listen to the brief mp3 fileat>>www.obriensweb.com/hell.mp3>>>Somethingis very "odd" sounding with my Feld Hell tones in Mixw,>whereas inMuptipsk the tones sound good to me.  Same audio settings>in thesoundcard.>>The audio file starts with Multipsk tones, thenafter the 3 seconds of>silence the MixW Feld Hell tones start. The tones are recorded via>PC mic near my PC speakers, hence the slightvariation in volume>levels.>>A couple of the people Ihave worked with MixW Hell say my tones sound>fine at their end but Iget a lot of no answers when using MixW Hell>versus Hell in Multipsk.>>>-->Andy K3UK>> 

>







----------------------------

#1436 Apr 4, 2006

Have you tried to download again Mixw? It is enoughto have one bit bad transmitted to have a random behaviour. 73Patrick ----- Original Message -----From:AndrewO'BrienTo: multipsk@yahoogroups.comSent: Tuesday, April 04, 2006 5:44AMSubject: Re: [multipsk] Re: Sick FeldHell Tones in MixW

The drive levels for the two programs is exactly thesame.  The MixW sick tones do not change even if I lower the drivelevel..  At the same drive level in MixW all other modes have goodsounding tones.  Only Hell sound this bad.



On 4/3/06, BillMcLaughlin bmc@...> wrote:Rick,

Exactly my response (in thedigitalradio forum). It certainly *seems* like a large excusion in drivelevels....the first tone set seems fine - the second very clipped as ifover-driven.

73



----------------------------

#1437 Apr 4, 2006

I will try that. Of course, maybe I should give up and just use Multipsk :>)





I trust all is well in France after the demonstrations today.





Andy



On 4/4/06, Patrick Lindecker f6cte@...> wrote:

>

> Have you tried to download again Mixw? It is enough to have one bit bad

> transmitted to have a random behaviour.

>

> 73

> Patrick

>

> ----- Original Message -----

> From: Andrew O'Brien

> To: multipsk@yahoogroups.com

> Sent: Tuesday, April 04, 2006 5:44 AM

> Subject: Re: [multipsk] Re: Sick Feld Hell Tones in MixW

>

> The drive levels for the two programs is exactly the same. The MixW sick

> tones do not change even if I lower the drive level.. At the same drive

> level in MixW all other modes have good sounding tones. Only Hell sound

> this bad.

>

>

>

>

> On 4/3/06, Bill McLaughlin bmc@...> wrote:

> >

> > Rick,

> >

> > Exactly my response (in the digitalradio forum). It certainly *seems*

> > like a large excusion in drive levels....the first tone set seems

> > fine - the second very clipped as if over-driven.

> >

> > 73

> >

> >

>

>

> Patrick

>

> ----- Original Message -----

> From: Andrew O'Brien

> To: multipsk@yahoogroups.com

> Sent: Tuesday, April 04, 2006 5:44 AM

> Subject: Re: [multipsk] Re: Sick Feld Hell Tones in MixW

>

> The drive levels for the two programs is exactly the same. The MixW sick

> tones do not change even if I lower the drive level.. At the same drive

> level in MixW all other modes have good sounding tones. Only Hell sound

> this bad.

>

>

>

>

> On 4/3/06, Bill McLaughlin bmc@...> wrote:

> >

> > Rick,

> >

> > Exactly my response (in the digitalradio forum). It certainly *seems*

> > like a large excusion in drive levels....the first tone set seems

> > fine - the second very clipped as if over-driven.

> >

> > 73

> >

> >

>

>

---------------

> YAHOO! GROUPS LINKS

>

> Visit your group "multipsk" on the web.

>

> To unsubscribe from this group, send an email to:

> multipsk-unsubscribe@yahoogroups.com

>

> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

> To unsubscribe from this group, send an email to:

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>

> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

---------------

>





--

Andy K3UK

Fredonia, New York.

Skype Me : callto://andyobrien73

Also available via Echolink



----------------------------

#1438 Apr 4, 2006

I spent some more time on this weird MixW versus MultiPSk issue for

Hell. I used the nice features in Multipsk



----------------------------

#1447 Apr 5, 2006

After discussion with Txema and a test, ithappens that the level of reception of the sound card is really very variable(it changes in a sensitive way from 1000 to 1800 Hz, on my on board sound card).Don't you have a problem of peak of amplification with your soundcard? The test would be to try with the same AFfrequencies (1000 Hz for example). 73Patrick----- Original Message -----From:AndrewO'BrienTo: multipsk@yahoogroups.comSent: Wednesday, April 05, 2006 1:18AMSubject: Re: [multipsk] Re: Sick FeldHell Tones in MixW

I spent some more time on this weird MixW versus MultiPSkissue forHell.  I used the nice features in Multipsk



----------------------------

#1448 Apr 5, 2006

I did test on the same AF (1000). In Hell mode Multipsk was always

perfect and in MixW all modes EXCEPT Hell were good.

On 4/5/06, Patrick Lindecker f6cte@...> wrote:

>

> After discussion with Txema and a test, it happens that the level of

> reception of the sound card is really very variable (it changes in a

> sensitive way from 1000 to 1800 Hz, on my on board sound card). Don't you

> have a problem of peak of amplification with your sound card?

>

> The test would be to try with the same AF frequencies (1000 Hz for example).

>

> 73

> Patrick

>

> ----- Original Message -----

> From: Andrew O'Brien

> To: multipsk@yahoogroups.com

> Sent: Wednesday, April 05, 2006 1:18 AM

> Subject: Re: [multipsk] Re: Sick Feld Hell Tones in MixW

>

> I spent some more time on this weird MixW versus MultiPSk issue for

> Hell. I used the nice features in Multipsk

>

>

>

> Patrick

>

> ----- Original Message -----

> From: Andrew O'Brien

> To: multipsk@yahoogroups.com

> Sent: Wednesday, April 05, 2006 1:18 AM

> Subject: Re: [multipsk] Re: Sick Feld Hell Tones in MixW

>

> I spent some more time on this weird MixW versus MultiPSk issue for

> Hell. I used the nice features in Multipsk

>

>

>

---------------

> YAHOO! GROUPS LINKS

>

> Visit your group "multipsk" on the web.

>

> To unsubscribe from this group, send an email to:

> multipsk-unsubscribe@yahoogroups.com

>

> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

> To unsubscribe from this group, send an email to:

> multipsk-unsubscribe@yahoogroups.com

>

> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

> Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

>

---------------

>





--

Andy K3UK

Fredonia, New York.

Skype Me : callto://andyobrien73

Also available via Echolink







----------------------------

#2031 Nov 8, 2006

I hear a slight audio flicker/popping noise when I start a transmit

with RS on, is this correct or do I have a problem with my soundcard

or PC ?



If you get a chance to listen, I have recorded the audio , see below.









www.obriensweb.com/rstestaudio.mp3 (500 KB)





or



www.obriensweb.com/rstestaudio.wav (5 Megs)







See if you can find out what mode I used!





Andy K3UK









--



----------------------------

#2033 Nov 8, 2006

Hi Andy,



Stuck on dialup so did not download your files but I have noticed the

RSID tones "sounding" abit harsh when listening to my xmit. I have

not noticed this impacting how it functions, however, so for now I am

ignoring it (well, not really). Might be a function of the modulation

wave-form and drive level?



73



Bill, N9DSJ



--- In multipsk@yahoogroups.com, "Andrew O'Brien" andrewobrie@...>

wrote: >

> I hear a slight audio flicker/popping noise when I start a transmit

> with RS on, is this correct or do I have a problem with my soundcard

> or PC ?

>

> If you get a chance to listen, I have recorded the audio , see

below. >

>

>

>

> www.obriensweb.com/rstestaudio.mp3 (500 KB)

>

>

> or

>

> www.obriensweb.com/rstestaudio.wav (5 Megs)

>

>

>

> See if you can find out what mode I used!

>

>

> Andy K3UK

>

>

>

>

> --

>



----------------------------

#2045 Nov 9, 2006

GM Andy, I just looked at your wave audio file with Adobe Audition 2.0.  There are definite spikes at most tone transitions.  It seems the tone frequency changes at the negative peak of the sine wave which causes the last cycle of the old tone to be lower in amplitude than normal and the first cycle of the second tone to be higher in amplitude than normal causing the clicking effect you hear.  I also hear it on this computer. I don't know if it is a sound card artifact or if it is even possible for Patrick to program it in such a way as to make it switch tones at zero crossings of the waveform.  That would take care of most of the 'clicking' Come to think of it, they do something like that in PSK31, etc. to keep it from 'clicking' when it phase shifts 180 degrees.  Maybe Patrick needs to incorporate something like that. What do they do for all the MFSK modes to keep them from 'clicking' or do they? 73,Dave K3GAU   

>>> "Andrew O'Brien" andrewobrie@...> 11/8/2006 9:42 PM >>>

I hear a slight audio flicker/popping noise when I start a transmitwith RS on, is this correct or do I have a problem with my soundcardor PC ?

If you get a chance to listen, I have recorded the audio , see below.

www.obriensw eb.com/rstestaud io.mp3 (500 KB)

or

www.obriensw eb.com/rstestaud io.wav (5 Megs)

See if you can find out what mode I used!

Andy K3UK

--



----------------------------

#2047 Nov 9, 2006

I heard the clicking noises on my loudspeakers, but did not analyze the

causes.



My sound card is an Audigy 2.



It would be sensible to try to program the transitions at zero

crossings, if possible.



Jose, CO2JA



David Bastress wrote:

> GM Andy,

>

> I just looked at your wave audio file with Adobe Audition 2.0. There

> are definite spikes at most tone transitions. It seems the tone

> frequency changes at the negative peak of the sine wave which

> causes the last cycle of the old tone to be lower in amplitude than

> normal and the first cycle of the second tone to be higher in

> amplitude than normal causing the clicking effect you hear. I also

> hear it on this computer. I don't know if it is a sound card artifact

> or if it is even possible for Patrick to program it in such a way as

> to make it switch tones at zero crossings of the waveform. That would

> take care of most of the 'clicking'

>

> Come to think of it, they do something like that in PSK31, etc. to

> keep it from 'clicking' when it phase shifts 180 degrees. Maybe

> Patrick needs to incorporate something like that. What do they do for

> all the MFSK modes to keep them from 'clicking' or do they?

>

> 73,

> Dave K3GAU

>

> >>> "Andrew O'Brien" andrewobrie@...> 11/8/2006 9:42 PM >>>

>

> I hear a slight audio flicker/popping noise when I start a transmit

> with RS on, is this correct or do I have a problem with my soundcard

> or PC ?

>

> If you get a chance to listen, I have recorded the audio , see below.

>

> www.obriensweb.com/rstestaudio.mp3

> www.obriensweb.com/rstestaudio.mp3> (500 KB)

>

> or

>

> www.obriensweb.com/rstestaudio.wav

> www.obriensweb.com/rstestaudio.wav> (5 Megs)

>

> See if you can find out what mode I used!

>

> Andy K3UK

>

> --

>





---------------



XIII Convenci.n Cient.fica de Ingenier.a y Arquitectura

28/noviembre al 1/diciembre de 2006

Cujae, Ciudad de la Habana, Cuba

www.cujae.edu.cu/eventos/convencion







----------------------------

#2049 Nov 9, 2006

Hello David, Andy and Jose, You are right! I pay attention to coding and notsufficiently to modulation. The phase is not continuous during transitions (Istart a symbol with a phase independant to the phase of the previous symbol...).It's a little bug. It's now fixed in my version. There is no more clicks.And moreover, I'm going to win some fractions of dB on the minimum S/N on RSID! At least, it is instructive to see what is a notcontinuous phase modulation HI TKS a lot for the good remark! 73Patrick----- Original Message -----From:DavidBastressTo: multipsk@yahoogroups.comSent: Thursday, November 09, 2006 3:06PMSubject: Re: [multipsk] Do my RS ID tonessound right?

GM Andy, I just looked at your wave audio file with Adobe Audition 2.0. There are definite spikes at most tone transitions.  It seems the tonefrequency changes at the negative peak of the sine wave which causes thelast cycle of the old tone to be lower in amplitude than normal andthe first cycle of the second tone to be higher in amplitude thannormal causing the clicking effect you hear.  I also hear it on thiscomputer. I don't know if it is a sound card artifact or if it is evenpossible for Patrick to program it in such a way as to make it switch tones atzero crossings of the waveform.  That would take care of most of the'clicking' Come to think of it, they do something like that in PSK31, etc. to keepit from 'clicking' when it phase shifts 180 degrees.  MaybePatrick needs to incorporate something like that. What do they do for all theMFSK modes to keep them from 'clicking' or do they? 73,Dave K3GAU   

>>> "Andrew O'Brien"andrewobrie@...> 11/8/2006 9:42 PM >>>

I hear a slight audio flicker/popping noise when I start a transmitwithRS on, is this correct or do I have a problem with my soundcardor PC?

If you get a chance to listen, I have recorded the audio , seebelow.

www.obriensw eb.com/rstestaud io.mp3(500 KB)

or

www.obriensw eb.com/rstestaud io.wav(5 Megs)

See if you can find out what mode I used!

AndyK3UK

--



----------------------------

#2057 Nov 9, 2006

Glad we can help Patrick. Dave I noticed the spikes in the wav file

when using Cool Edit to look at it.



Andy K3UK



-- In multipsk@yahoogroups.com, "Patrick Lindecker" f6cte@...>

wrote: >

> Hello David, Andy and Jose,

>

> You are right! I pay attention to coding and not sufficiently to

modulation. The phase is not continuous during transitions (I start a

symbol with a phase independant to the phase of the previous

symbol...). It's a little bug. It's now fixed in my version. There is

no more clicks. And moreover, I'm going to win some fractions of dB

on the minimum S/N on RS ID! >

> At least, it is instructive to see what is a not continuous phase

modulation HI >

> TKS a lot for the good remark!

>

> 73

> Patrick

> ----- Original Message -----

> From: David Bastress

> To: multipsk@yahoogroups.com

> Sent: Thursday, November 09, 2006 3:06 PM

> Subject: Re: [multipsk] Do my RS ID tones sound right?

>

>

> GM Andy,

>

> I just looked at your wave audio file with Adobe Audition 2.0.

There are definite spikes at most tone transitions. It seems the

tone frequency changes at the negative peak of the sine wave which

causes the last cycle of the old tone to be lower in amplitude than

normal and the first cycle of the second tone to be higher in

amplitude than normal causing the clicking effect you hear. I also

hear it on this computer. I don't know if it is a sound card artifact

or if it is even possible for Patrick to program it in such a way as

to make it switch tones at zero crossings of the waveform. That

would take care of most of the 'clicking' >

> Come to think of it, they do something like that in PSK31, etc.

to keep it from 'clicking' when it phase shifts 180 degrees. Maybe

Patrick needs to incorporate something like that. What do they do for

all the MFSK modes to keep them from 'clicking' or do they? >

> 73,

> Dave K3GAU

>

> >>> "Andrew O'Brien" andrewobrie@...> 11/8/2006 9:42 PM >>>

>

> I hear a slight audio flicker/popping noise when I start a

transmit > with RS on, is this correct or do I have a problem with my

soundcard > or PC ?

>

> If you get a chance to listen, I have recorded the audio , see

below. >

> www.obriensweb.com/rstestaudio.mp3 (500 KB)

>

> or

>

> www.obriensweb.com/rstestaudio.wav (5 Megs)

>

> See if you can find out what mode I used!

>

> Andy K3UK

>

> --

>



----------------------------

#7261 May 29, 2009

I have never used Video ID before and was just trying something in

4.14. I noticed that if you have Video ID enabled the normal beginning

low/high (2x) tones at the start of an Olivia, RTTYM, or Contestia

transmission now become low/high (4x). Also, in MFSK the length of the

beginning steady low tone seems to be twice as long. Without Video ID,

all is normal.



This certainly isn't critical, but I was wondering if there is some

reason for making the start tones for these modes twice as long. (I

didn't try any other modes, nor do I know if this is also true in

earlier versions).



Thanks and 73,

John W2KI







----------------------------

#7264 May 29, 2009

Hello John,



Yes uou are right, it is doubled (note for me:

"ENVOI_LISTE_DES_MOTS_EN_CMT_HELL;").



In certain circunstances, it is useful (after a Video ID macro for example),

but in that case, not. However, it would be complex to discriminate what it

is absolutly necessary from what is superfluous, so....



73

Patrick







----- Original Message -----

From: "John Hirth" w2ki@...>

To: multipsk@yahoogroups.com>

Sent: Friday, May 29, 2009 4:25 PM

Subject: [multipsk] Video ID and Olivia/MFSK starting tones in 4.14





>I have never used Video ID before and was just trying something in

> 4.14. I noticed that if you have Video ID enabled the normal beginning

> low/high (2x) tones at the start of an Olivia, RTTYM, or Contestia

> transmission now become low/high (4x). Also, in MFSK the length of the

> beginning steady low tone seems to be twice as long. Without Video ID,

> all is normal.

>

> This certainly isn't critical, but I was wondering if there is some

> reason for making the start tones for these modes twice as long. (I

> didn't try any other modes, nor do I know if this is also true in

> earlier versions).

>

> Thanks and 73,

> John W2KI

>

>

>

>

---------------

>

> Yahoo! Groups Links

>

>

>

>

>



----------------------------

#9758 Oct 1, 2010

Where do I look to set the tones for pactor 1, or what tone at the present is set for pactor 1, Ineed 1600/1800.



Tnx

POB/K8LEN



----------------------------

#9759 Oct 1, 2010

On 01/Oct/10 06:56, obie47165 wrote: > Where do I look to set the tones for pactor 1, or what tone at the present is set for pactor 1, Ineed 1600/1800.

>

> Tnx

> POB/K8LEN



Hi POB,



MultiPSK defaults to 800/1000 Hz for PACTOR (1), however it matters not.

One may change that by placing the mouse pointer where one wishes the

Mark frequency to be, inside or on the black part of the waterfall window.



It is a 200 Hz shift protocol. One doesn't really need 1600/1800 Hz

though my Kantronics KAM defaulted to those. One may use any 200 Hz

combination that will accurately pass through your radio, both ways.

2025/2225 would work just as well, or 2130/2230. In fact the KAM may

have it's settings changed and I once did that to match the tuning

display behaviour of a fixed external DRSI HF modem I had.



However these are all distractions. If one refers to a Data RF by it's

Centre Frequency, then anyone, with any gear in either USB or LSB

settings may tune to that place.



I'm including, not necessarily for you, a link to a description of

Centre vs Dial Frequency. wa8lmf.net/aprs/SSB_Frequencies.htm



A good place for coordinating or offering contacts on PACTOR or other

data modes is hamspots.net/arq/ Most state or assume Centre

Frequency, or CF. So, for PACTOR (1), the middle of any 200 Hz shift may

be used.



I just downloaded the MultiPSK help file. It's a nice PDF with internal

links (anchors). Available at f6cte.free.fr/index_anglais.htm



I have another HELP_PSK.pdf which is also a good reference. I think I

picked it up here g90swl.co.uk/multipsk/ This location is

referred to on Patrick's site as Terry's mirror.



Cheers es 73, John

--

J.D. Erskine

Victoria, BC

VA7OTC/VE0JD

CN88hk NA036



----------------------------

#9760 Oct 1, 2010

TKS John for the explanation.



Yes the AF frequencies can be selected on the waterfall. You can select the

RF frequency for a set of AF frequencies (in USB RF frequency + AF frequency

being the central transmission frequency, you can choose the AF frequency by

changing the RF frequency.



73

Patrick ----- Original Message -----

From: "VA7OTC JD Erskine" va7otc@...>

To: multipsk@yahoogroups.com>

Sent: Friday, October 01, 2010 7:42 PM

Subject: Re: [multipsk] TONES





> On 01/Oct/10 06:56, obie47165 wrote:

>> Where do I look to set the tones for pactor 1, or what tone at the

>> present is set for pactor 1, Ineed 1600/1800.

>>

>> Tnx

>> POB/K8LEN

>

> Hi POB,

>

> MultiPSK defaults to 800/1000 Hz for PACTOR (1), however it matters not.

> One may change that by placing the mouse pointer where one wishes the

> Mark frequency to be, inside or on the black part of the waterfall window.

>

> It is a 200 Hz shift protocol. One doesn't really need 1600/1800 Hz

> though my Kantronics KAM defaulted to those. One may use any 200 Hz

> combination that will accurately pass through your radio, both ways.

> 2025/2225 would work just as well, or 2130/2230. In fact the KAM may

> have it's settings changed and I once did that to match the tuning

> display behaviour of a fixed external DRSI HF modem I had.

>

> However these are all distractions. If one refers to a Data RF by it's

> Centre Frequency, then anyone, with any gear in either USB or LSB

> settings may tune to that place.

>

> I'm including, not necessarily for you, a link to a description of

> Centre vs Dial Frequency. wa8lmf.net/aprs/SSB_Frequencies.htm

>

> A good place for coordinating or offering contacts on PACTOR or other

> data modes is hamspots.net/arq/ Most state or assume Centre

> Frequency, or CF. So, for PACTOR (1), the middle of any 200 Hz shift may

> be used.

>

> I just downloaded the MultiPSK help file. It's a nice PDF with internal

> links (anchors). Available at f6cte.free.fr/index_anglais.htm

>

> I have another HELP_PSK.pdf which is also a good reference. I think I

> picked it up here g90swl.co.uk/multipsk/ This location is

> referred to on Patrick's site as Terry's mirror.

>

> Cheers es 73, John

> --

> J.D. Erskine

> Victoria, BC

> VA7OTC/VE0JD

> CN88hk NA036

>

>

>

>

---------------

>

> Yahoo! Groups Links

>

>

>

>

>







----------------------------

#10581 Mar 31, 2011

iN USING PACTOR 1, I CAN DECODE THE OTHER STATION, BUT HE CANT DECODE ME, HE IS USING A TONE OF 2210, HOW DO WE CHANGE TONES FOR PACTOR 1, ANY HELP APPRECIATED



POB/K8LEN



----------------------------

#10587 Apr 3, 2011

Hello Pob,



>iN USING PACTOR 1, I CAN DECODE THE OTHER STATION, BUT HE CANT DECODE ME,

HE IS USING A TONE OF 2210, HOW DO WE CHANGE TONES FOR PACTOR 1, ANY HELP

APPRECIATED

You can select the frequency you want clicking on the waterfall.



Note: Multipsk can decode Pactor 1 FEC or ARQ but transmits only in Pactor 1

FEC (no way to send a frame at a precise time under Windows).



73

Patrick



-----Message d'origine-----

De.: multipsk@yahoogroups.com [mailto:multipsk@yahoogroups.com] De la part

de POB

Envoy..: jeudi 31 mars 2011 20:11

..: multipsk@yahoogroups.com

Objet.: [multipsk] pactor 1/tones



iN USING PACTOR 1, I CAN DECODE THE OTHER STATION, BUT HE CANT DECODE ME, HE

IS USING A TONE OF 2210, HOW DO WE CHANGE TONES FOR PACTOR 1, ANY HELP

APPRECIATED



POB/K8LEN







---------------



Yahoo! Groups Links



----------------------------

#22966 Feb 13, 2017

All,I feel kind of dumb asking this. But can MultiPSK decode ASCII being transmitted at 1200 baud with standard Bell 202 modem shift? I went through the RTTY and BPSK modes but could not decode the signal. Can MultiPSK decode that signal type? Or, am I missing something obvious?Thank you,-Shawn



----------------------------

#22967 Feb 13, 2017

1200 baud and bell tones?? looks like 1k2 packet to me but notrttydg9bfc sigi



Am 14.02.2017 um 04:29 schrieb Shawnerzshawnerz@... [multipsk]:

.All,Ifeel kind of dumb asking this. But can MultiPSK decodeASCII being transmitted at 1200 baud with standard Bell202 modem shift? I went through the RTTY and BPSK modesbut could not decode the signal. Can MultiPSK decodethat signal type? Or, am I missing something obvious?Thankyou,-Shawn



----------------------------

#22972 Feb 14, 2017

Hello Shawn,  No it is not decoded (except the AX25 version, i.e AFSK Packet). In ASCII, only the standard 110 bauds is decoded (and I.m not sure that it is still used on Ham bands).  73Patrick  De : multipsk@yahoogroups.com [mailto:multipsk@yahoogroups.com] Envoy. : mardi 14 f.vrier 2017 06:14. : multipsk@yahoogroups.comObjet : Re: [multipsk] 1200 Baud ASCII (Bell 202 modem tones) with MultiPSK?


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