Monday, March 30, 2009

XM Seeks to Expand it Band of Frequencies

XM, the wholly owned subsidiary of Sirius XM Radio, has filed an application to expand it range of frequencies to include the Sirius Satellite Radio band of frequencies. Previously, XM operated in the 2332.5-2345 MHz band, while Sirius operated in the 2320-2332.5. XM now seeks permission to operate over the entire satellite radion band from 2320 MHz to 2345 MHz. The stated purpose is to allow Sirius XM to design, test, and demonstate its terrestrial repeater network in order to optimize the network prior to deployment. Although the repeater networks operate in a different way, this could be the first step towards consolidating the two repeater networks. One also has to wonder if this could be a prelude to moving towards one satellite constellation.

Update: Application granted on May 14, 2009.

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homer985 said...

Nice to see you're still around Bert... hope you've been well. Still traveling abroad?

My opinion on this filing -- I agree. This is a prelude to a one satellite system for both.

All indications are that Sirius-5 is going up soon and XM-5, will be going up some time after that -- which would complete a GEO constellation for both Sirius and XM combined to use.

This will then allow XM to use XM-3 and XM-4 as in orbit spares for the XM system; and Sirius 1/2/3 as spares for the Sirius system. Although, the Sirius birds wouldn't have many years left on them; perhaps powering them down to be used as spares may slow down their demise. XM-1/2 are pretty much dead, as they're due to be retired in the next year or so.

What do you think?

This would also allow Sirius to modify Sirius-6 to be a spare and delay plans on the next one after that... saving a ton on CAPEX.


Bert said...

Good to hear from you again, Homer! The current economic crisis has certainly curtailed my traveling, but I was up your way last week. I will be in China late next month.

I think you right. Moving to one system is where the real savings begin for the long term.

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