[SBE] FW: Question about a Crown exciter and transmitter, over temperatur...

[William Whitt]

I just wanted to say - I've never heard of anyone cleaning with Freon . till
today. What is the attraction to this, vice another cleaning agent? Just
curious.

 

Bill

 

From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of
A9xw at cs.com
Sent: Tuesday, August 18, 2009 7:44 AM
To: sbe at sbe.org
Subject: Re: [SBE] FW: Question about a Crown exciter and transmitter, over
temperatur...

 

Had a similar problem with the same hardware. It was cutting out the 945 Mhz
STL signal  Took me a while to find it because when the bldg was open, the
room cooled and the problem went away, but after leaving the site it would
come back an hour or so later. Clean out the PA2000 RF amps.  I had to pull
them out of hte box (careful they are RF hot if the unit is on) and scrub
them down with freon to get the embedded dirt off the copper.  The grill
filters need reglar cleaning and make sure there is space above and below
for circulation. ie don't stack the amp and 100 watt exciter box to box. I
added rack fans when I rebuilt the site. 

Henry

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