[Skimmertalk] RP10 14 and 16

[Dai NAGAKURA]

de JF2IWL

Are there someone answer my elementary but fundamental question
about RP's ADC bit number ?

(1) Red Pitaya 10bit 
Imput inpedance is 1k ohm and only one imput , needs 14:1 transformer 
6 band Skimmer
Price = 240USD.  price/band  raito is 40USD

(2) Red Pitaya 10bit 
Imput inpedance is 1k ohm and only one imput, needs 14:1 transformer 
8 band Skimmer
Price = 300USD.  price/band  raito is 37.5USD

(3) Red Pitaya 10bit 
Imput inpedance is 50 ohm ,two imput.
8+8 16 band Skimmer
Price = 500USD.  price/band  raito is 31.2USD

At this time, RP-16 is most cheap ber band 
then put  ADC bit and price coefficient= 1/ADC bit number,
and multiply above,

Result are 

RP-10 =40USD/band/10=4.0USD
RP-14 =37.5USD/band/14=2.7USD
RP-16=31.2USD/band/16=2.0USD

So, RP-16 is most cheap and Highiest performance board.

Is it right?

Dai / JF2IWL






-- 
Dai NAGAKURA <ndai at cameo.plala.or.jp>