Re: Reports from a least affected user


David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

--- In MSG-1@..., "Alan Sewards" <alan.sewards@c...>
wrote:
David,
The 27.5 Ms/s is the digital chip rate of the signal. Data
uses a number of chips per bit, I don't know how many with Hotbird/T-
Systems. But the data bit rate is likely to be less than 5 MHz. Its
by doing this that the digital format can get more channels into the
transponder than an analog system would, and still maintain a usable
S/N ratio.

Best regards - Alan
I would still be interested to know a little more about the
packetisation, buffering, data rates, and therefore interrupt rates
(or even DMA requirements) of the system. Perhaps someone has a
reference?

Cheers,
David

Join MSG-1@groups.io to automatically receive all group messages.