[Amps] Black heat shields

[Roger (K8RI)]

On 12/19/2010 11:19 PM, Mike wrote:
> All the direct TV ones I have seen are gray
>
They aren't large enough to be of concern.  We are talking about 
"C-band" dishes large enough when focused the heat will melt solder. The 
small ones are 8' while the typical large ones go up to around 16' in 
diameter. The little one I had in the back yard (8') could be seen from 
space (Google Earth)

73

Roger (K8RI)
> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
> Behalf Of Ron Youvan
> Sent: Sunday, December 19, 2010 7:01 PM
> To: amps
> Subject: [Amps] Black heat shields
>
> Roger (K8RI) wrote:
>
> /*snip*/
>> I repainted the dish, but this time it was flat black. Man, did that
>> dish get hot, but it never melted another LNB. You could feel the heat
>> from that dish a good 10 feet behind it.  BTW that particular dish is
>> visible in the "Google Earth" image so I know that image hasn't been
>> updated in quite a while.
>     It is standard and normal to paint satellite dish faces with
> FLAT WHITE NON conductive NON metallic paint to scatter the IR
> from the sun.