[time-nuts] DTV tuner chip usable for GPS front end?

[David J Taylor]

> I suppose there is limited interest in homebrew GPS receivers given how 
> cheap the fully integrated chipsets are. However, just noticed the below 
> tuner chip intended for DTV, actually lists GPS L1 as an applicable 
> frequency.  A TV Tuner USB stick using this chip is available for $20, 
> and some SDR type software is apparently working with it:
> http://sdr.osmocom.org/trac/wiki/rtl-sdr   Has anyone here played with 
> this device?
>
> from http://www.elonics.com/product.do?id=1
> "The E4000 is a highly integrated multi band RF tuner IC implemented in 
> CMOS, ideal for low power digital terrestrial TV and radio broadcast 
> receiver solutions.  The E4000 contains a single input LNA with RF 
> filter, whose centre frequency can be programmed over the complete 
> frequency range from 64MHz to 1700MHz."
>
> Broadcast Standards
>    DVB-T (174-240MHz, 470-854MHz)
>    ISDB-T (470-862MHz)
>    DVB-H (470-854MHz, 1672-1678MHz)
>    CMMB (470-862MHz)
>    D-TMB (470-862MHz)
>    T-DMB (174-240MHz, 1452-1492MHz)
>    DAB (174-240MHz, 1452-1492MHz)
>    MediaFLO (470-862, 1452-1492MHz)
>    GPS L1 band (1575MHz)
>
> [...]

.. and available ready built here:

  http://www.funcubedongle.com/

but perhaps not fast enough for you.

Cheers,
David
-- 
SatSignal software - quality software written to your requirements
Web:  http://www.satsignal.eu
Email:  david-taylor at blueyonder.co.uk