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Spring-time prep for Radars

Old 04-25-2007, 12:34 PM
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Default Spring-time prep for Radars

FYI - I tip I've learned is that if you have radar ... let it warm up for at least 10 minutes for each month it was shut-off before you go for a scan. This conditions the thyratron unit which generates the microwaves, as they need to be eased back into service. A thyratron PhD (if you can imagine there's such a thing ) who is also a boater taught me this.

... even if there's no logical basis to this (Chem guy ? you PhD you ... where are you? ) it sure can't hurt!
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Old 04-25-2007, 01:43 PM
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Default Re: Spring-time prep for Radars


Actually it CAN hurt!! It puts about 30 minutes of usage on it that it otherwise would not have!!

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Old 04-25-2007, 03:15 PM
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Default Re: Spring-time prep for Radars

First, the portion of the radar that generates the micowave transmission is called a MAGNETRON. Second, every recreational radar sold currently has a "warm up" period between 60 and 120 seconds, which is what the radar's manufacturer has deemed an appropriate warm up period for their radar's magnetron. The amount of time the radar has been off since it was last used has no bearing on how long it needs to warm up, it is not like your foot falling asleep.
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Old 04-25-2007, 03:38 PM
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Default Re: Spring-time prep for Radars

SeaSwirler23 - 4/25/2007 3:15 PM

The amount of time the radar has been off since it was last used has no bearing on how long it needs to warm up, it is not like your foot falling asleep.
LOL! I got this image of a radar hopping around on its pedestal saying "Ow! Ow! My magnetron fell asleep!"
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Old 04-26-2007, 09:21 AM
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Default Re: Spring-time prep for Radars

Oops ... goofed in my 1st post and put 'thyratron' instead of 'magentron'. Regardless, think what you will, but more than a couple resident PhDs have chimed in and AGREE with what I was advised. As with anything THT ... your mileage will vary ...
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