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What is a radar inhibitor's significance to pilots?

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What is a radar inhibitor's significance to pilots?

Old 25th Apr 2019, 20:02
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What is a radar inhibitor's significance to pilots?

Checking NOTAMs for Friday 26th April I saw the following NOTAM near my intended route.
What does it mean? What is the significance for a GA pilot? It must have some significance otherwise why publish it.

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Old 26th Apr 2019, 06:46
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Never heard of it and I was a radar controller for most of my life.
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Old 26th Apr 2019, 07:39
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Peril Sensitive screens … ?
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Old 26th Apr 2019, 19:17
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That's a poorly worded NOTAM. IMHO. The Cranwell Watchman PSR routinely has one (or possibly) two of its available channels inhibited in order to reduce the amount of clutter shown on the display. By reducing the "output" from the radar head you also reduce the capability to detect aircraft. The controllers shouldn't have to keep transmitting the phrase "reduced traffic information from all around owing to limited surveillance performance" because all the aviators making use of the Cranwell ATC services will have read said NOTAM.
Project Marshall will put it right, eventually.
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Old 28th Apr 2019, 09:32
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Possibly means an 'attenuator' will be installed for a radar calibration.
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Old 30th Apr 2019, 17:55
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Nope, not an attenuator in this instance. It's a simple case of switching off one, or some, of the radar channels.
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