[hpsdr] Cooling Requirements?

[kd5byb at bellsouth.net]

Hey Keith,

Looking at cooling is one of the things on my "to do" list for the design of the not yet proposed Pandora enclosure concept.

So far, I don't think that the Ozy and Janus cards are going to draw a lot of power, so an ATX cooling supply fan is probably sufficient.

This could change if future cards use a lot of power.  But, it is probably worth mentioning that some folks here are looking at www.mini-box.com pico ITX power supplies that are 120 watt supplies at near 90% efficiency.  If all that 120 watts becomes heat, that might be a problem for an ATX fan.

When I get back in town (on road right now, wife in hospital about two hours from home) I'll do a quick analysis with a 120 watt heat load and assuming about 20 CFM airflow in a 70 degree room.

thanks and 73,
ben, KD5BYB



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