BBC SATBACk on Intelsat 901 at 27.5°W is a back up service for the UK Freeview service.
The main channels from the BBC, ITV and Channel 4 are available on Intelsat 907 at 27.5° West.
This service is a backup for Freeview and carries channels from the BBC, ITV, Channel 4 and Channel 5.
It is used when the relays to the Freeview transmitters fails, and they use this satellite service to feed the Freeview transmitter mast.
It is often referred to by its network name BBC-SATBACK.
The service has been at 27.5W for several years. AS it is not for public use it is encrpyted. But with certain receivers, the channels can be “unlocked”. This has been a good way of watching UK TV in areas where signals from the main UK TV Astra 2 satellites is unavailable.
It is currently transmitted from Intelsat 901, which is nearing the end of its mission life.
Which could be why an exact copy of this service has appeared on another satellite.
It is being reported that an exact copy of the BBC SATBACK service on Intelsat 901 has recently appeared on Telstar 12 Vantage at 15° West, on frequency 11043 V SR 44095 FEC 9/10 QPSK-S2 DVB-S2
And it appears that the beam that this is on is very focused on the UK.
And thus appears much weaker than the Intelsat signal it is currently on.
Which could cause problems for those in southern Europe and Spain who are currently using this service.
The reports say that the frequency being used is on the “North Sea” beam, which is heavily focused on the UK and Scandinavia.
This is complicated by the fact that the Telstar satellite has another beam , the “Med West” beam, covering the western part of the Mediterranean. It could be that any similar signals active on the Med West beam could override any signal from the North Sea beam.
So this change in BBC Satback could have an impact on those using it in Southern Spain and Portugal.