[amsat-bb] Re: ISS HamTV Frequencies

[I0ELE]

Hi Greg,
I believe that your Pinnacle PC Card is not for DVB-S (Satellite 
networks) but for DVB-T (terrestrial networks).
Please check on the web or give me the model of your card, so that I 
will check it.
Emanuele I0ELE

Il 13/05/2013 0.45, Greg D ha scritto:
> Hi Emanuele,
>
> Right.  But what is that in terms of what normally gets described?  
> For example, I have a Digital TV card for my computer (Pinnacle PCTV 
> HD).  It says it does "ATSC digital TV (HDTV up to 1080i, and SDTV)" 
> and "Clear QAM (unencrypted digital cable)".
>
> Am I even close?
>
> Greg  KO6TH
>
>
> I0ELE wrote:
>> HAMTV stream will be transmitted at 1.3 MSym/s or at 2.0 MSym/s.
>> Technical specs of the set-top box indicate the range of the decoded 
>> stream. Generally this range is from 2 to 45 MSym/s, therefore if you 
>> need to buy it, you should select one that can guarantee a range from 
>> 1 to 45 MSym/s.
>>
>> Emanuele I0ELE
>>
>>
>> Il 13/05/2013 0.15, Greg D ha scritto:
>>> For the digital TV challenged, what means "Any DVB-S Decoder which 
>>> can decode a 1.3 MSym/s TV signal"?  How would I know if I have such 
>>> a thing, or what I would need to get if I don't.
>>>
>>> Greg  KO6TH
>>>
>>>
>>> I0ELE wrote:
>>>> Certainly!
>>>> You can find the nominal link budget on 
>>>> http://www.amsat.it/HAMTV_Link-budget-IARU.pdf and all the relevant 
>>>> information http://www.amsat.it/Amsat-Italia_HamTV_brochure.pdf.
>>>> However
>>>>
>>>>  * Recommended Antenna gain > 25 dB
>>>>  * RHCP
>>>>  * Low noise down converter i.e. Kuhne LNC 25 or LNC 25 TM NF 0.7 dB
>>>>  * Any DVB-S  Decoder which can decode a 1.3 MSym/s TV signal
>>>>
>>>> 73, Emanuele, I0ELE
>>>> President AMSAT Italia
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>>