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looking for that table/matrix which shows what mode-SR-FEC are possible with an Easycap
Posted: Sat Feb 19, 2022 1:23 pm
by i2NDT
I am looking for that table/matrix which shows what mode-SR-FEC are possible with an Easycap dongle, a Logitech 920 and a Raspicam.
I have already spent hours looking for it in the Wiki but cannot find it any more!
thanks
i2NDT Claudio
Re: looking for that table/matrix which shows what mode-SR-FEC are possible with an Easycap
Posted: Sat Feb 19, 2022 1:52 pm
by G8GKQ
Hi Claudio
I produced such a matrix very early on in the Portsdown project (Portsdown 2017 with the filter-modulator board), but there are just too many combinations to test now.
As a general rule, if you want high SRs (> 1MS) and DVB-S2, you need to use the LimeSDR Mini with the LimeDVB firmware. The DATV Express (and the old filter-modulator board with Portsdown 2020) will do high SRs but only DVB-S. Pluto is limited to 1MS or less.
It tends to depend on the output device more than the input device. Also it depends on encoding (H264 vs MPEG-2) and definition (SD, 16:9 or 720p).
I would suggest testing what you want to achieve, or asking a specific question here if you want somebody to test a specific configuration.
Sorry I can't be more helpful
Dave, G8GKQ