[amsat-bb] Fox on ARRL website

Jerry Buxton amsat at n0jy.org
Wed May 28 19:47:11 UTC 2014

Hi Trevor,

The Fox-1 series will support High Speed (up to 9600) downlink.  For the 
Fox-1 we're launching next year, that means that the images from the 
Virginia Tech camera experiment will be downlinked on the high speed 
because of their size, and the high speed will also include the same 
telemetry that the Slow Speed telemetry (sub-audible data under 
transponder operations) conveys.
The High Speed mode must be commanded and will be activated by the AMSAT 
Operations Team for periods up to 24 hours.  Normally the satellite will 
run in the transponder/Slow Speed data mode.
The High Speed mode was designed to be experimental, and the Virginia 
Tech camera will take advantage of it.
The plan is for Fox-1 Series satellites to be able to support our 
partner's experiments which may require high speed telemetry or data 
downlink, and in such future cases if the experiment requires high speed 
all of the time then when the experiment has completed its mission we 
would turn the satellite back to transponder/slow speed telemetry.


On 5/28/2014 2:31 PM, M5AKA wrote:
> The ARRL report on the Fox CubeSat at
> http://www.arrl.org/news/fox-1-launch-date-slipping-into-summer-of-2015
> One thing that surprised me in the article was when they said
> "The Phase 1 CubeSats also can handle high-speed digital communications."
> My understanding had been that Fox Phase 1 would be low data rate and it would only be the Fox Phase 2 satellites that would support a high date rate (> 19200 kbs ?)
> Have I misunderstood ?
> 73 Trevor M5AKA
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