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The Televes 560383 and 560483 pre-amplifiers have a published specification of -10°C to 50°C (12°F to 120°F), which may not be suitable for outdoor winter use in some areas of Canada and northern USA.
That question comes up often. All of Televes outdoor electronics are tested and validated to work from -20C to +60C (-4F to 140F). Televes is however very conservative in the published temp specs and has a typical standard published of -5C to 45C (23F to 113F) because that’s the range in which the published specs (gain, consumption, maximum output level, etc) are 100% guaranteed to be met. Outside of that range there might be minute deviations in some parameters (think of maybe an amplifier providing 1dB less gain in an extreme case as an example). Even in that case deviations will be minimal and not affect the regular functioning of the device, so -4F to 140F, is just fine. The fact that there are Televes antennas and outdoor electronics installed all over the world for decades, from the coldest spots in Russia and Alaska to scorching hot in Africa and the Middle East, proves it.
 
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