<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'><P><SPAN>The simplest would be to mount a thermal switch on the heatsink. When it closes fire a GPI.</SPAN></P>
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<P><SPAN>Something like this at the temp threshold that you want to alarm: <BR><A href="http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=3455RC%2001000247-ND">http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=3455RC%2001000247-ND</A><BR></SPAN><SPAN>Find out the temp were it's failing now, and select a switch maybe 5 or 10 degrees lower.</SPAN></P>
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<P><SPAN>For the room temp, maybe a plain old thermostat tripping a different GPI.</SPAN></P>
<P><SPAN>Using one for AC/HEAT would give you high and low trip points.</SPAN></P>
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<P><SPAN>This would at least give you some alarms.</SPAN></P>
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<P><SPAN>Bob</SPAN></P>
<P><SPAN>WB3AWJ </P><SPAN name="x"></SPAN>
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<B>From: </B>"Scott Weis" <kb2ear@kb2ear.net><BR>I am having a problem with the hot weather shutting down a repeater. I would<BR>like to know if anyone has any way of monitoring the ambient temperature in<BR>the room as well as the surface of a heat sink and then triggering an event<BR>in app_rpt when they exceeded a certain threshold.<BR><BR></div></body></html>