[amsat-bb] Re: Some more details of XW-1

Bill Ress bill at hsmicrowave.com
Sun Oct 5 11:54:06 PDT 2008


Hi Michael,

Thanks for update on XW-1.

A quick check of the IARU satellite frequency coordination web site 
doesn't shown XW-1 as being in the coordination process. Do you know if 
it's the plan is to have the frequencies coordinated with the IARU?

Regards...Bill - N6GHz

Michael Chen, BD5RV wrote:
> Hi, guys,
>
> Here are some details about upcoming Chinese XW-1:
>
> Orbit: Sun Synchronous Orbit
> Altitude: 499km
> Inclination: 98 degrees
> Period: 94 minutes
>
> Weight: 35kg
> Size: 550mm * 350mm
> Temperature: -20 to +45C
> Power: Li ion battery: 16Ah
> Long-term maximum power: 8W
> Short-term maximum power: 18W
>
> Payload:
>     Amateur radio payload: 5.2kg
>     Youngster's experiment payload: 1.6kg
>     CMOS camera: 0.2kg
>
> About amateur radio payload:
> Beacon: 435Mhz, CW 20dBm
> Linear transponder: RX: 145Mhz, TX: 435Mhz, 40KHz, 30dBm
> FM Transponder: RX: 145Mhz, TX: 435Mhz, 16KHz, 30dBm
> Digital store and forward transponder: RX: 145Mhz, TX: 435Mhz, 16KHz, 30dBm
>
> 145Mhz RX Antenna: 2dBi, 135 degree, LHCP, unpacked by remote control after entering the orbit.
> 435Mhz TX antenna: 2dBi, 135 degree, RHCP, unpacked by remote control after entering the orbit.
>
>
>
> Michael, BD5RV/4
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