[amsat-bb] Re: International Space Station-Bounce on 1296 MHz

[Ing. Pavel Milanes Costa]

Yes Domenico.

That's why I write "From my modest EIRP calculation", becouse there is a 
few variables that are unknown to me...

Never the less, that eve more huge power... hi hi hi ...

73

El 29/05/13 14:44, i8cvs escribió:
> Hi Pavel ,CO7WT
>
>  From info received belove by Trevor M5AKA we know that
> DJ5AR was using a 3m dish (29 dB gain) and 200 watts at the
> dish feed.
>
> If 200 W is the RF power arriving at the dish feed without
> losses in the feed line my calculation shows:
>
> 29 dB is equivalent to 29 dB isotropic gain so that the
> isotropic power ratio is 10^2.9 = 794.328 time in power.
>
> The EIRP ( Effective Isotropic Radiated Power) is :
>
> 200 W x 794.328  = 158865.647 watt = 159 kW (rounded)
>
> 73" de
>
> i8CVS Domenico
>
> ----- Original Message -----
> From: "Ing. Pavel Milanes Costa" <co7wt at frcuba.co.cu>
> To: <amsat-bb at amsat.org>
> Sent: Tuesday, May 28, 2013 3:20 PM
> Subject: [amsat-bb] Re: International Space Station-Bounce on 1296 MHz
>
>
> WOW !
>
>   From my modest EIRP calculation via the handbook that will be about
> 129130 W (129KW) (some error included...)
>
> That's a huge power...
>
> 73
>
> El 28/05/13 04:13, M5AKA escribió:
>> --- On Tue, 28/5/13, i8cvs <domenico.i8cvs at tin.it> wrote:
>>> Do you know the EIRP used at 1296 MHz by DJ5AR or by
>>> PA3FXB
>>
>> Hi Domenico,
>>
>> DJ5AR was using a 3m dish (29 dB gain) and 200 watts, PA3FXB also had a 3m
>> dish but I don't know the power > output.
>>
>> They each have a report on the QSO in the 432 and Above EME Newsletter
>>
>> http://www.nitehawk.com/rasmit/NLD/eme0713.pdf
>>
>> 73 Trevor M5AKA
>>
>
>