[amsat-bb] Re: Allocations in L-band

Greg Dolkas ko6th.greg at gmail.com
Wed Nov 21 07:37:30 PST 2012


Right, sorry.  The question was mode L but my brain read mode S... 

Greg  KO6TH

Sent from my trusty HP iPAQ.

-----Original Message-----
From: "i8cvs" <domenico.i8cvs at tin.it>
To: "Greg D" <ko6th.greg at gmail.com>; APBIDDLE at MAILAPS.ORG
Cc: "AMSAT-BB" <amsat-bb at amsat.org>
Sent: 11/21/12 6:23 AM
Subject: Re: [amsat-bb] Re: Allocations in L-band

Hi Greg, KO6TH

For the history no OSCAR satellite carried on a Mode-L Beacon.

OSCAR-7 carried on a Mode-S beacon on 2304.1 MHz built by the
San Bernardino Microwave Society but it was never officially turned
on because of  international treaty constraints (bandplan) so that it
was not receiving the autorization by the FCC

73" de

i8CVS Domenico

----- Original Message -----
From: "Greg D" <ko6th.greg at gmail.com>
To: <APBIDDLE at MAILAPS.ORG>
Cc: "AMSAT-BB" <amsat-bb at amsat.org>
Sent: Wednesday, November 21, 2012 5:31 AM
Subject: [amsat-bb] Re: Allocations in L-band


> I believe it was Oscar-7.
>
> Greg  KO6TH
>
>
> Alan wrote:
> > Someone years ago told me that one of the early amateur satellites had a
> > mode-L beacon, but because the rules changed, it was never turned on.  I
> > haven't been able to verify or disprove this story.
> >
> > Alan
> > WA4SCA
> >
> >
> > -----Original Message-----
> > From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
> > Behalf Of Trevor .
> > Sent: Tuesday, November 20, 2012 4:10 AM
> > To: amsat-bb at amsat.org
> > Subject: [amsat-bb] Re: Allocations in L-band
> >
> > --- On Mon, 19/11/12, Richard Ferryman<g4bbh at btinternet.com>  wrote:
> >> Just curious - Can someone enlighten me as to why there is no
allocation
> >> for satellite downlinks in L-band (at least in the bandplans I have
seen).
> >> There are uplinks around 1267 to 1269 MHz. Is it due to possibility of
> >> interference with commercial/military/aeronautical systems?
> > I believe it dates back to a WARC conference in about 1971. Prior to
that
> > the Amateur Service had I believe been able to use any Amateur
Frequencies
> > just as they can still do for that other form of Space Communication -
Moon
> > Bounce (EME).
> >
> > Wayne Green W2NSD does make references to the loss of satellite
frequencies
> > a few times in his column in 73 Magazine from that era, see 73 Mag
archive
> > at http://archive.org/search.php?query=73%20magazine
> >
> 



More information about the AMSAT-BB mailing list