[amsat-bb] Re: SO-67 over Europe thanks for test

[Andy MacAllister]

For the 1614Z pass, I made it a point to stay centered in the uplink, i.e. a 
few kHz of appropriate Doppler correction on 2M as SO-67 went by. This 
helped also.
Andy W5ACM

----- Original Message ----- 
From: "Roger Kolakowski" <rogerkola at aol.com>
To: "OZ1MY" <oz1my at privat.dk>; "Kostas Ioannidis" 
<kostas.ioannidis at gmail.com>; "AMSAT-BB" <amsat-bb at amsat.org>
Sent: Saturday, November 07, 2009 3:38 PM
Subject: [amsat-bb] Re: SO-67 over Europe thanks for test


> Yes it did help...2.5 KHz it is...
>
> Roger
> WA1KAT
>
> ----- Original Message -----
> From: "OZ1MY" <oz1my at privat.dk>
> To: "Roger Kolakowski" <rogerkola at aol.com>; "Kostas Ioannidis"
> <kostas.ioannidis at gmail.com>; "AMSAT-BB" <amsat-bb at 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" <rogerkola at aol.com>
>> To: "OZ1MY" <oz1my at privat.dk>; "Kostas Ioannidis"
>> <kostas.ioannidis at gmail.com>; "AMSAT-BB" <amsat-bb at 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" <oz1my at privat.dk>
>> > To: "Kostas Ioannidis" <kostas.ioannidis at gmail.com>; "AMSAT-BB"
>> > <amsat-bb at 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.ioannidis at gmail.com>
>> > > To: "OZ1MY" <oz1my at 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
>> > > >
>> > >
>> > > _______________________________________________
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> author.
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>> >
>> >
>>
>>
>>
>
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