29 May
2011
29 May
'11
6:16 p.m.
Hi!
For those interested, I've taken apart the case and did some investigation how the FCDP hardware architecture looks like.
The results are available at http://tetra.osmocom.org/trac/wiki/Funcube_Dongle
It seems the silicon tuner actually is intended for DVB-T, thus the bandwidth it can down-convert is _much_ higher. However, the audio codec that they use can only do 96kHz.
That's actually really sad. I wish they had used something with higher ADC rate. But it seems like even high-end audio codecs never get you beyond 196/216 kHz - still insufficient for e.g. GSM.
Regards, Harald
--
- Harald Welte laforge@gnumonks.org http://laforge.gnumonks.org/
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