[NLRS] First tests with DVB-T dongle

[Doug Reed]

Absolutely correct, it has 8-bit A-D converters in the IQ channels so 
the max dynamic range is limited..... There are people working on the 
drivers and they are getting closer to having the AGC working if I 
understand correctly from the emails. But you need a *lot* of CPU 
horsepower to run the software.

73, Doug Reed, N0NAS.

aflowers at frontiernet.net wrote:
> My understanding is that these are 8-bit samplers, which if true, limits
> the dynamic range to a little less than 50 dB. Hence the need for an RF
> gain control in many uses.
> Andy K0SM/2
> *From:* Doug Reed <n0nas at amsat.org>
> *To:* Northern Lights remailer <nlrs at mailman.qth.net>
> *Sent:* Monday, July 16, 2012 9:45 PM
> *Subject:* Re: [NLRS] First tests with DVB-T dongle
>
> Probably the biggest problem is overload of the "DC-to-daylight"
> wideband front-end. The E4000 chip has adjustable gain but people are
> still trying to figure out how to set it correctly.... Things are
> getting better as a few people turn up with NDA's and time to write
> code. It is very much a "work in progress."