[pskmail] Re: Aw: Re: A crazy/stupid idea
- From: Rein Couperus <Rein@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Sat, 6 Oct 2012 14:48:29 +0200
I did some testing on the CW copying capability of the latest stable fldigi,
and I must say I am not very impressed. Something must be done to mimic a
'robust CW' solution, because I got 99% error on most signals.
Here is SP5KD calling a dxpedition with 20 wpm:
---
E T *I EE ****H *H IE VD T W* I* T 5KD E B V R I I<AS>SEB
E6 EF5BD D I E SP5KD SIH EET E I EE U SP5KD SSAE E LP5KD
SP5KT IP5KD ETP5KD E ISP5KDE EDL5KD IP5XSE E D IP5KD E S E
SER5KD D IP5KD IH HPHCD A* SP5* IP5TTD EPHKD *5KD IW5KD
EP5KTE G5KD E<AS>5KD IPHKD EW5KD EP5KD E*KH I HKD S** HAS
S I<VE>5KS IP5BD IP5KD E E E E E E I E E I E E E E E EI T
----
You did not know there were so many ways to spell 1 callsign did you?
Rein PA0R
On Fri, 5 Oct 2012 15:53:49 +0200 (CEST)
"Rein Couperus" <rein@xxxxxxxxxxxx> wrote:
> Being a 'CW only' operator, this idea has been one of my pet projects for
> some
> years... I am thinking about a 'simplified' way to handle this, not a full
> ARQ
> protocol. I must admit that it is not highest on the todo list, but I might
> come up
> with some useable code next winter season...
>
> Some ideas which are on my 'would be nice' list:
> * Use a Coherent CW modem for a super sensitive link mode on a frequency
> in the CW portion of the band, running slow but full ARQ pskmail...
> Using multiple CW characters to form the complete ASCII 7 set...
>
> * Theoretically you could now already send short emails without ARQ connect
> using the unconnected APRS email service in pskmail... just switch fldigi to
> receive CW... (only trouble are the '@', '<SOH>' and '<EOT>' characters...).
>
> * A separate version of PSKmail called 'CWmail' could use 90% of the pskmail
> system infrastructure with a specialized protocol, and run in the CW band.
>
> *ARQ by ear... using your keyer to ask for a repeat...
>
> ... Meanwhile you can of course use Andpskmail without a laptop using your
> android phone... makes your backpack a lot lighter in weight :-)
>
> One other idea I have to make the transceiver smaller and lighter is
> to use a straight FSK mode on an Xtal controlled transmitter...
>
> I will take a few extra beers tonite, and do some more thinking :-)
>
> To realize all these goodies we will need some coding help (Perl for the
> server),
> as the pskmail project is not finished yet...
>
> 73,
>
> Rein PA0R
>
>
>
>
>
>
> I love the idea to get portable operators connected!
>
> vy 73 de Marcus KD0JKM
>
>
> -------
> Sent from my Mobile, please excuse typos.
> Phone: 314 884 8697
>
> On Oct 5, 2012, at 7:30, Daniel Arseneault <danielarseno@xxxxxxxxx> wrote:
>
> > Hi guys,
> >
> > Just for the sake of discussion, what would you think of adding an
> > amazing new mode to pskmail: CW.
> >
> > Actually, I'm serious. I'm thinking of a CW-to-email gateway that
> > would listen for keywords and message body text sent in CW. This would
> > allow mobile ops who can't pack a laptop and ssb transceiver to send
> > and receive short emails. Error-correction would be to simply play
> > back the email address and message, one line at a time waiting for ok
> > confirmation from the client. Full QSK servers could receive
> > corrections simultaneously as the message is played back, There could
> > be address books, custom abbreviations, heck even webpage fetching
> > (short webpages...), there are all kinds of possibilities. All of this
> > done live between a human and a computer.
> >
> > Here's another discussion on this topic:
> > http://www.eham.net/ehamforum/smf/index.php?topic=77975.0
> >
>
>
--
Rein Couperus <Rein@xxxxxxxxxxxx>
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