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RV:




> Hi to all satellite amateur.
> 
> Yesterday I received AO-40 in better way, than, when i use a 40 turn helix
> RHCP antenna. i made a reflector antena with a grid dish (40cm. * 90cm.)
> iluminated with 3,5 turn LHCP Helix, but i dont search the results that i
> hope.
> 
(40 * 90 centimeters is a good size or not?) in practicals terms.

> any one, know, the figure noise of FT-780r (this is my equiptment for
> downlink more UEK-3000SAT if 432), the specifications
> says.........................................Receiver sensitivity 0.5
> microvolts for 20 dB S/N (that is a good thing? or poor thing?).
> 
> its correct to say (concider the previous specifications) that the
> Receiver Sensitivity is 0,25 microvolts for 10dB S/N.?.
> i need to know this value for calculate the MDS.
>  
> Thanks in advance,again, from CHILE. CE3SAG

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