kb...@n1k.org said: > Well, based on conversations with the people who designed the part, the > outer ovenâs only function was to take care of a potential cold end > problem. > At the time, the telecom guys were thinking of putting GPSDOâs in systems > with no heating on the enclosures. That idea died when they ran into a > variety of issues with the digital side of things at cold temperatures.
What's the problem with digital gear at cold temperatures? The only one I can think of is that electrolytic capacitors stop working when the electrolyte freezes. Do signal integrity problems appear when the rise time from CMOS drivers gets faster? What sort of warmth did the telecom guys decide they needed? I live in California, at sea level rather than up in the mountains. We get occasional freezing from radiation cooling on clear nights. They wouldn't have to work very hard to keep a box above freezing. I'll have to look closer the next time I see some cell phone antennas. -- These are my opinions. I hate spam.
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