Re: [Discuss-gnuradio] GPS with DBSRX, Almost There

[Marcus Leech]

Robert McGwier wrote:

> There is a multiplier circuit/ PLL in the DBS-RX.  Whatever phase 
> noise is coming from the oscillator is being  multiplied considerably 
> by this upconversion to be used at LO in the DBS-RX.  You cannot get 
> low phase noise oscillators and high performance mixers in that small 
> a package. Together these considerations imply more power and 
> territory and thermal control than is available with the DBS-RX.
>
> Bob
Indeed, the target application space of the MAX2118 (satellite TV), upon 
which DBS_RX is based, has relatively sloppy
 phase-noise requirements.

--
Marcus Leech                            Mail:   Dept 1A12, M/S: 04352P16
Security Standards Advisor        Phone: (ESN) 393-9145  +1 613 763 9145
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