Our system is the Tandberg Reflex(TM) system and can be used in a 6+2 encoder configuration with 1+1 multiplexers. We have used it in numerous ways including a combination of television standards (PAL625 and NTSC525), a combination of encoding standards (4:2:2 and 4:2:0), fixed rate services and statistically multiplexed (variable bit rate) services all within the same DVB multiplex, as well as up to eight associated audios sometimes allocated on certain services. We now also offer the ability to mix Standard Definition and High Definition services within the same MPEG2 multiplex.
Whatever the configuration we are sure to have used it or tested it in considering an application. We consider at the outset where signals are going and what other processing or service dropping may occur at earth stations for fibre on-pass or additional satellite hops.
A typical situation we use is where we make sure that, not only do six services fit within a 27MHz bandwidth, but that a chosen four of the six will always fit within 18MHz for further satellite on-pass “downstream”. We call it service sub-pack grooming.
Transmitting multiple feeds often causes problems for comprehensive monitoring all the feeds, The Tennis Masters, for example, requires that we monitor six feeds from MCR, as well as our return signals from satellite. We utilise a multi display computer to generate a display for 16 monitors. This supplies us with a light, highly transportable solution that will still meet our monitoring requirements. We also supply a second LCD panel into the client operations area so that they can see immediately what content is on which circuit.