....and for most of the directional antennas currently being used and tuned for the higher Sat 2m frequencies this means bad VSWR.

On Wed, Oct 23, 2013 at 3:27 AM, Graham Shirville < g.shirville@btinternet.com> wrote:

Hi Greg,

Please have a look at Footnote 1 at the bottom of the 2 metre bandplan:

"1 - Designers and operators of satellites using this section shall not transmit below 144,0025 MHz so that a necessary guard band is provided at the bottom band edge.”

This shows that it has been thought about and probably means that it could be used for a nominally 20kHz bandwidth transponder – so long as it has decent filtering on board which is relatively easy to achieve these days!

Of course there are very very few “empty spaces” in the 144-146MHz band and even fewer that have any sort of existing international alignment.

thanks

Graham G3VZV

-----Original Message----- From: Greg D Sent: Wednesday, October 23, 2013 7:07 AM To: AMSAT BB Subject: [amsat-bb] Re: New Satellite Segment in IARU Region 2 Bandplan

Interesting... Does anyone else find it odd (or possibly irresponsible) to put a satellite allocation right up against the band edge. Didn't they consider Doppler shift? That renders the lower 3+ khz of a 25 khz slice unusable. Or is this only for NSS use?

Greg KO6TH

M5AKA wrote:

...

New Satellite Segment in IARU Region 2 Bandplan

http://amsat-uk.org/2013/10/22/new-satellite-segment-in-iaru-region-2-bandpl... _______________________________________________ Sent via AMSAT-BB@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-BB@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

Hi Joe,

they might not be turned off, but turned on! Some satellites are only turned on over certain regions.

Stefan

On Wed, Oct 23, 2013 at 9:27 AM, Joe nss@mwt.net wrote:

My first thought was, Ummmm, Just for Region 2?

Hello a Sat goes everywhere! All Regions! Hello?

Shouldn't a rule in this service be for the whole world since the bird is going to be above the whole world.

What is a new bird going by these new laws shut off when above 1 or 3?

Duh?

Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com

On 10/23/2013 1:07 AM, Greg D wrote:

...

Interesting... Does anyone else find it odd (or possibly irresponsible) to put a satellite allocation right up against the band edge. Didn't they consider Doppler shift? That renders the lower 3+ khz of a 25 khz slice unusable. Or is this only for NSS use?

Greg KO6TH

M5AKA wrote:

...

New Satellite Segment in IARU Region 2 Bandplan http://amsat-uk.org/2013/10/**22/new-satellite-segment-in-** iaru-region-2-bandplan/http://amsat-uk.org/2013/10/22/new-satellite-segment-in-iaru-region-2-bandplan/

______________________________**_________________ Sent via AMSAT-BB@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-bbhttp://amsat.org/mailman/listinfo/amsat-bb

______________________________**_________________ Sent via AMSAT-BB@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-bbhttp://amsat.org/mailman/listinfo/amsat-bb