[amsat-bb] Re: A0 40 replacement

[Mike Seguin]

A HEO satellite with a 10 GHz downlink would be tons of fun. We've been 
using these along with surplus DSS dishes using a Funcube as an IF to 
create really cheap 10 GHz receivers that work well!

http://www.ebay.com/itm/LNB-Single-0-1dB-Satellite-Universal-Edition-Full-HD-Sky-Freesat-TV-/181180214555?pt=UK_Sound_Vision_Satellite_LNBs&hash=item2a2f2ead1b

Watch the wrap...

Mike

On 9/4/2013 1:43 PM, Gus wrote:
> Truly.
>
> However, to include operators with modest shacks, you need to allow
> operation on modes A, B and/or J.  A satellite operating on 24.0 GHz
> won't be of interest to the average ham.  Not until the average ham has
> 24.0 GHz capable antennas, feedlines, amplifiers, transceivers, etc, in
> his shack.
>
> On 09/04/2013 11:31 AM, Bryce Salmi wrote:
>> Yea but increasing frequency helps with that. With directional
>> antennas the satellite would need attitude control which would benefit
>> greatly from miniaturization. For the most part, miniaturization would
>> come from incorporating systems on chips. Most op amps and
>> microcontrollers are much smaller than their packages so including
>> those systems on a single die in a single package are capable of
>> massive savings in space. This is what made smart phones even possible .
>>
>> Gus <8p6sm at anjo.com> wrote:
>>
>>     On 09/04/2013 02:26 AM, Brenton Salmi wrote:
>>
>>         Let's put it in another possible context: Create an extremely
>>         dense and reliable LEO platform in cube-sat form that weigh's
>>         a fraction of AO-40's weight using today's high-density
>>         components/systems and create a reliable and feature rich HEO
>>         cubesat.
>>
>>
>>
>>     The only problem with this, is that certain components can't be
>>     miniaturized.  Example: Antennas.  And HEO satellites need more
>>     sophisticated antennas.
>>
>>     Pity the cube-sat idea didn't finish up with a ten INCH cube...
>>
>>     --
>>     73, de Gus 8P6SM
>>     Barbados, the easternmost isle.
>>
>> -------------------------------------------------------------------------- 

73,
Mike, N1JEZ
"A closed mouth gathers no feet"