NO. I was simply saying that the open source is there for the 4800 bps
GMSK sound card modem. NOT using D-STAR Digital Voice. That has already
been done via satellite.
NO, I was just saying ignore the high speed mode.
73, Tom n4zpt
Nathaniel S. Parsons wrote:
> Ah, thanks for clarifying. Unfo
t.org] On
Behalf Of Nathaniel S. Parsons
Sent: Saturday, April 10, 2010 10:02 PM
To: Tom Azlin N4ZPT
Cc: AMSAT-BB
Subject: [amsat-bb] Re: BeeSat at 4800 GMSK
Ah, thanks for clarifying. Unfortunately, if I understand you correctly, we
would have to talk to our satellite via digital voice, or at 12
t-bb-boun...@amsat.org] Im
> Auftrag von Tom Azlin N4ZPT
> Gesendet: Freitag, 9. April 2010 00:28
> An: AMSAT-BB
> Betreff: [amsat-bb] Re: BeeSat at 4800 GMSK
>
> Hi Nate,
>
> I was not aware MixW had MSK in it but still identical to GMSK. Perhaps
> you are thinking of MF
Ah, thanks for clarifying. Unfortunately, if I understand you correctly, we
would have to talk to our satellite via digital voice, or at 128kbps, which
would be great if we could!
-Nate
On Sat, Apr 10, 2010 at 10:15 PM, Tom Azlin N4ZPT wrote:
> Well, make that the digital voice part of the prot
Well, make that the digital voice part of the protocol. The high speed
digital data part is up to 128kbps which was not what I was thinking of.
73, tom n4zpt
Tom Azlin N4ZPT wrote:
> Hi Nate,
>
> the D-STAR protocol is only GMSK at 4800 bps and they selected a
> time-bandwidth product of 0.5.
Hi Nate,
the D-STAR protocol is only GMSK at 4800 bps and they selected a
time-bandwidth product of 0.5. 4,800 bps or 4k8 is perhaps not talked
about as that IS the standard for D-STAR. So the software there might be
adaptable. that is the reason I thought to suggest it.
Good luck and 73, Tom
Hi Tom,
My mind had indeed played a trick on me, and I remembered MFSK as MSK.
As far as the DStar group goes, I don't see any mention of 4800 bps or 4k8
kbps on the public page, so if it's not the group's focus, I don't want to
have to rely on that solution.
Thanks,
-Nate KC2SVI
On Thu, Apr 8,
28
An: AMSAT-BB
Betreff: [amsat-bb] Re: BeeSat at 4800 GMSK
Hi Nate,
I was not aware MixW had MSK in it but still identical to GMSK. Perhaps
you are thinking of MFSK? In the MixW program there is MSFK16, a
multitone frequency shift signal, is supported, but not Minimum Shift
Keying or Gaussian Mi
Hi Nate,
I was not aware MixW had MSK in it but still identical to GMSK. Perhaps
you are thinking of MFSK? In the MixW program there is MSFK16, a
multitone frequency shift signal, is supported, but not Minimum Shift
Keying or Gaussian Minimum Shift Keying signals. And also FSK, aka RTTY.
There
Thanks everyone who has responded. If you emailed me personally, I hope I
have gotten back to you already (otherwise, please try to send again in a
way my filter won't catch). For those that cc'd the list:
John - Thanks for the link, I'll look through it as soon as possible.
Henk - Thanks for the
Symek sells modems that can be modified for operation at 4.8-614.4 kbaud
(http://www.symek.com/g/index-g.html).
73,
John
KD6OZH
- Original Message -
From: "Nathaniel S. Parsons"
To: "AMSAT-BB"
Sent: Tuesday, April 06, 2010 16:40 UTC
Subject: [amsat-bb] BeeSat at 4800 GMSK
> Hi all,
Hi Nate
May I kindly recommend Mike, DK3WN, website ?
http://www.dk3wn.info/p/ (daily weblog - IMHO the best there is)
http://www.dk3wn.info/satellites.shtml (satellite index)
http://www.dk3wn.info/sat/afu/sat_beesat.shtml (beesat)
MSK is used for AA-U2 as well.
http://www.dk3wn.info/sat/afu/sa
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