Yes it is. The Space Daily article only says that the signal is jammed,
not what part of the link from terrestrial program source to uplink to
downlink to receive antenna is being disrupted. The Space Daily article
says that other services besides the BBC are affected. What's probably
happening is that someone is doing broadband noise jamming of the
satellite or satellites providing service to the Middle East. It is much
easier to jam the downlink and here's why:
COMSATs work as bent-pipes. The uplink carries the program signal, say
the BBC World Service broadcast, in one fairly narrow band signal. The
sat receives the program signal with an antenna that "sees" a wide area
of the Earth, extracts the program signal and retransmits it in the same
or another band using an antenna that shapes the ground footprint of the
downlink to optimize transmit power usage. In the same uplink beam, many
other users send their signals which are extracted, routed to a downlink
transmitter, multiplexed with with other user signals and sent to the
ground at a higher power level.
Each receiving user sees the satellite through a fairly narrow beamwidth
antenna. Unless the downlink jammer operates within the receive antenna
beam, its signal doesn't make it into the receiver feed. The receive
antenna beam can be thought of as a narrow cone pointing at the COMSAT.
A downlink jammer has to be in that cone or else its signal is rejected
by the antenna. A terrestrial downlink jammer can only be seen by a few
receive antennas. the only way to jam the downlink over a large
terrestrial area is to either use _very_ high transmit power to get
signal in through one of the receive antenna sidelobes or to position
the jammer in an aircraft at very high altitude (or use a jammer in GEO
but that's hard).
A uplink jammer on the other hand can be anywhere in the ground
footprint of the satellite uplink antenna, by its nature a broadbeam
service. A barrage jammer saturates the receiver on the satellite with
high power noise over the entire uplink band, preventing any user, not
just the BBC, from getting through.
Paul