For those who don’t know what a DCSS Lnb is.
The lnb downconverts the full ku 10700 to 12700 spectrum on both polarities to 2 separate Lband stacks. The stacks are then digitised with a Pair of 5.4G ADCs. The output has a single 10G DAC to reconstruct RF.
The output of the lnb can have 24 or more, depending on the chipset, fixed channels (but programmable) and each fixed output called User Bands can access any frequency on the input. A command is sent to the lnb that places any frequency on the input of the lnb to a fixed lband output.
We have pimped the firmware in the LNB to push it as far as possible so one lnb can cover the older boards but some processing is still needed as the lnb requires a data feed to control it. In addition it doesn’t (YET) have the stability of the bullseye so some of the frequency offsets will need to either manually offset or tuned out via FW.
We managed to lock to Eutlesat 8W in UK with the dcss and dreamcatcher 3.03 so the new 5.0 should be no problems and will reduce the system NF too as its direct into the SX1280 from the LNB. In addition the dcss is very clean and only pushes out a single 20M wide digitally filtered transponder.
Dcss does require a fair but if power and hence the number of power conversion stages in the design.
Future?.. We are working hard to get the system lower cost and more robust and going forward the DC5 will be a great test bench for the next generation DC6, that’s currently in early design/simulation phase, where we are aiming to fully encapsulate the circuitry into a new robust flat panel with the intention of moving quickly to closing the link for a 2 way terminal.