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DECT Phone causing interference to satellite TV reception ? : MBC Satellites: Satellite Installation Services
 
mbc satellites

DECT Phone causing interference to satellite TV reception ?

December 22, 2009 · Filed Under Technical 

If you are having reception problems with some satellite TV channels, one of the things to check is that it isn’t your cordless DECT phone causing it.

DECT Frquencies are 1880 to 1900 MHz

Hi band problems:-

12480 to 12500 MHz (10600 MHz LO) IF is 1880 to 1900 MHz

Lo band problems:-

11630 to 11650 MHz (9750 MHz LO) IF is 1880 to 1900 MHz

For example if the interference occurs on a channel that is on 11642 MHz for example, the LNB will down-convert it to an IF frequency of 1892 MHz, which is right in the middle of the DECT band. Poor screening and/or DECT equipment too close, could cause problems.
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