[pskmail] Re: New test server available for testing (Fred)
- From: Per Crusefalk <per@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Sat, 19 Dec 2009 18:50:08 +0100
Yes, pactor uses several carriers. But, I still think its strange that
they permit it. For instance speed level 6 uses 18 tones with a physical
data rate over the air of 3600 bps (net data rate 2722 bps).
"(f) The following standards and limitations apply to transmissions on
the frequencies specified in §97.305(c) of this Part."
"The symbol rate must not exceed 300 bauds, or for frequency-shift
keying, the frequency shift between mark and space must not exceed 1
kHz."
The over all symbol rate of the transmission is 3600 bauds, if you
divide and just look at one part of the transmission then just that part
is fine. But, the rule didnt talk about only a part of the transmission.
The limitation applys to the whole transmission...strange regulation.
Anyway, lets not dive to deep here. Lets hope your regulation changes
soon.
73 de Per, sm0rwo
lör 2009-12-19 klockan 09:22 -0800 skrev Russell Blair:
> I think Pactor is more then one carrier where PSK500 is one carrier. Wright. ?
>
> Russell
> 1- Whoever said nothing is impossible never tried slamming a revolving door!
> 2- A government big enough to give you everything you want, is strong enough
> to take everything you have.
> - Thomas Jefferson
>
>
> " IN GOD WE TRUST "
>
>
> Russell Blair (NC5O)
> Skype-Russell.Blair
> Hell Field #300
> DRCC #55
> 30m Dig-group #693
>
>
>
> ----- Original Message ----
> From: Rein Couperus <rein@xxxxxxxxxxxx>
> To: pskmail@xxxxxxxxxxxxx
> Sent: Sat, December 19, 2009 11:05:49 AM
> Subject: [pskmail] Re: New test server available for testing (Fred)
>
> In PSK500R you have 2 bits per symbol, making the bit rate 500 bps and
> the Baud rate 250 symbols/second.
>
> In Pactor 3 the symbol rate is MUCH higher than 300... and nobody seems
> to care!!
>
> Rein
>
> > Russell,
> >
> > From Section 97.305:
> >
> > (3) Only a RTTY or data emission using a specified digital code listed
> > in §97.309(a)
> > <http://www.arrl.org/FandES/field/regulations/news/part97/d-305.html#309>
> > of this Part may be transmitted. The symbol rate must not exceed 300
> > bauds, or for frequency-shift keying, the frequency shift between mark
> > and space must not exceed 1 kHz.
> >
> > If the trap is put in the way Rein described, it would key on the
> > server's call sign rather than the client call sign.
> >
> > I'm gonna work on this Saturday and Sunday. I'll post what I do to this
> > mailing list.
> >
> > 73,
> > Fred
> > WB5CON
> >
> >
> > Russell Blair wrote:
> > > Fred, OK thanks I didnt want all this for nothing.
> > > I will need this for my server as well. ? if the trap is only for W-K-N
> > > what happen if a DX station (UK) connects to you and you TX at PSK500.
> > >
> > > Russell
> > > 1- Whoever said nothing is impossible never tried slamming a revolving
> > > door!
> > > 2- A government big enough to give you everything you want, is strong
> > > enough to take everything you have.
> > > - Thomas Jefferson
> > >
> > >
> > > " IN GOD WE TRUST "
> > >
> > >
> > > Russell Blair (NC5O)
> > > Skype-Russell.Blair
> > > Hell Field #300
> > > DRCC #55
> > > 30m Dig-group #693
> > >
> > >
> > -----------------------cut------------------------------
> >
> >
>
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