Yes it did help...2.5 KHz it is... Roger WA1KAT
----- Original Message ----- From: "OZ1MY" <oz...@privat.dk> To: "Roger Kolakowski" <rogerk...@aol.com>; "Kostas Ioannidis" <kostas.ioanni...@gmail.com>; "AMSAT-BB" <amsat-bb@amsat.org> Sent: Saturday, November 07, 2009 8:29 AM Subject: Re: [amsat-bb] Re: SO-67 over Europe thanks for test > Hi Roger and the -bb, > From memory it takes up less than 12.5 kHz which is the > channel spacing on 2 meters (In Region 1 at least). > Frequency deviation like 2.5 kHz (old 3.5 kHz and even some > have 5 kHz deviation). > It is the frequency deviation that is a the issue with SO-67 (I think). > If you run too high deviation on the uplink the LF to the transmitter will > make it deviate too much. Even for a normal (old) setting on the receive > side. > > The Carson rule says: Signal Bandwidth = 2 times (Deviation + modulation > frequency). > > Did that help ? > 73 OZ1MY > Ib > ----- Original Message ----- > From: "Roger Kolakowski" <rogerk...@aol.com> > To: "OZ1MY" <oz...@privat.dk>; "Kostas Ioannidis" > <kostas.ioanni...@gmail.com>; "AMSAT-BB" <amsat-bb@amsat.org> > Sent: Saturday, November 07, 2009 3:03 PM > Subject: Re: [amsat-bb] Re: SO-67 over Europe thanks for test > > > > How "narrow" is FMN? > > > > Roger > > WA1KAT > > > > ----- Original Message ----- > > From: "OZ1MY" <oz...@privat.dk> > > To: "Kostas Ioannidis" <kostas.ioanni...@gmail.com>; "AMSAT-BB" > > <amsat-bb@amsat.org> > > Sent: Saturday, November 07, 2009 6:40 AM > > Subject: [amsat-bb] Re: SO-67 over Europe thanks for test > > > > > > > Hi Kostas, > > > If you do not have FMN on your radio, turn the mike gain down and/or > > > do not shout :-) > > > 73 OZ1MY > > > Ib > > > ----- Original Message ----- > > > From: "Kostas Ioannidis" <kostas.ioanni...@gmail.com> > > > To: "OZ1MY" <oz...@privat.dk> > > > Sent: Saturday, November 07, 2009 12:20 PM > > > Subject: Re: [amsat-bb] SO-67 over Europe thanks for test > > > > > > > > > > Goodmorning, > > > > As the previous operator said thank you a lot for this great sounding > > > > sat! It was booming all tha pass. > > > > A lot of traffic on the air! But the narrow FM is an issue for those > > > > who do not use it... > > > > > > > > > > > > > > > > > > > > 73 de SW1IXP > > > > > > > > > > _______________________________________________ > > > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > > > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > > > > > > > _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
