Hi fellow GNURadioers,
I’d really like to share with you a demonstration video about something
I
consider rather cool.
An ETSI DVB-T Single Frequency Network (SFN) tested within the lab but
ready
for geographical deployment,
implemented by using none of those ultra high-end, GPS-synced SFN
hardware
modulators but only two ordinary computers and 2 USRP2s. The lab setup
reproduces an SFN collision area between two neighboring transmitters
(i.e.
the worst case a receiver can fall into when operating within an sfn
environment). Time and frequency synchronization are delivered to SFN
transmitters without relying upon GPS/GALILEO infrastructure but through
ordinary (not dedicated) packet switched networks carrying loads of
concurrent traffic.
I’m not sure this was done before, please let me know in case there is
some
info I’m missing.
thank you and reagards
vincenzo