[Amps] Black heat shields

[Carl]

The commercial dishes I have here range from an aluminum honeycomb mesh (12' 
ex satellite TV) that was never shiny to light and a darker gray and one 
that is cream colored. These are used for various ham microwave bands.

When I was doing sattelite TV installs on the side pre scrambling era there 
was only one black dish on the market and their big thing was it was hard to 
see in a residential enviroment. As LNA temperatures came down that dish was 
reinvented as a gray.

The radome on the 2.4 and 5.8 GHz wireless repeater antennas are cream 
colored.

Carl
KM1H


----- Original Message ----- 
From: "Mike" <noddy1211 at sbcglobal.net>
To: "'amps'" <amps at contesting.com>
Sent: Sunday, December 19, 2010 11:19 PM
Subject: Re: [Amps] Black heat shields


> All the direct TV ones I have seen are gray
>
> -----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.
> -- 
>    Ron KA4INM - I'm proud to be Chuck's pop!
>
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