[amsat-bb] Re: [sarex] Re: Re: ARISSat-1 and FOX social media fundraising
samudra.haque at gmail.com
Thu Nov 18 15:21:04 PST 2010
Can I ask how many solar panels will be unfurled from the 1U chassis
which has an internal dimension of approx. 87 x 87 mm? Will it be a
symmetric or assymetric arrangement? Will the antenna be embedded into
the extended solar panel?
73 de N3RDX
On Thu, Nov 18, 2010 at 4:48 PM, Anthony Monteiro <aa2tx at comcast.net> wrote:
> Hi Trevor,
> The current plan is to use the same frequency for the FM downlink
> and the telemetry beacon. The IHU will have sufficient memory capacity to
> hold at least a days worth of data so the beacon would be turned on once
> a day for a telemetry dump and then back to transponder mode.
> And yes, we plan to use forward error correction on the beacon so
> that it will be bulletproof. It will likely be a different format
> than the one used on ARISSat-1 since we want a higher bit rate and Fox
> will be passive magnetic stabilized (like AO-51) so it will not suffer
> from tumble fading like ARISSat might and the interleave length does not
> need to be as long.
> Thanks for your interest!
> Tony AA2TX
> At 03:35 PM 11/18/2010, Trevor . wrote:
>>--- On Thu, 18/11/10, Andrew Glasbrenner <glasbrenner at mindspring.com> wrote:
>> > Slides 14 through 17
>>Really glad to see that AMSAT-NA is going ahead with the FOX project.
>> >From my point of view potentially the valuable part of FOX is the
>> deployable Solar Panels.
>>This has never been done on a 1U CubeSat and should significantly
>>increase the power available. A space proven system to deploy panels
>>on a 1U sat will benefit not just AMSAT-NA for future projects but
>>the entire CubeSat community.
>>Unfortunately I wasn't able to get to the symposium so perhaps you
>>could clarify one of the slides for me.
>>Slide 16 mentions both a U/V FM transpoder and a V telemetry beacon.
>>Is the telemetry beacon on a seperate frequency from the transponder
>>so both can run at the same time ? Also is the beacon using the
>>robust narrow band, high efficiently, BPSK system developed for ARISSat-1 ?
>>I look forward to the launch of ARISSat-1 in the New Year with its
>>first ever space deployment of a SDX linear transponder, with that
>>and the Slow Scan TV, its sure to be very popular.
>>73 Trevor M5AKA
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