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Anything unusual of squawk 0143 for MH17?

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Anything unusual of squawk 0143 for MH17?

Old 24th Dec 2014, 20:21
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Anything unusual of squawk 0143 for MH17?

MH17 was squawking 0143 at July 17.
I understand this squawk is part of a range used for experimental activities.
Wikipedia says:
Allocated to Service Area Operations for assignment for use by Terminal/CERAP/Industry/Unique Purpose/Experimental Activities (USA)[15]

Is this squawk unusual?
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Old 24th Dec 2014, 20:52
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Anything unusual of squawk 0143 for MH17?

The aircraft was not in American airspace, so your cherry picking of a publicly-edited website in any case is not valid. Just because a set is reserved in one country does not hold true in another.

Best example therein, conspicuity is 1200 in the US, and 7000 in the UK.
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Old 24th Dec 2014, 22:08
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According to the Code Allocation in UK IAIP ENR 1.6-8 SSR Code 0143 is from code block 0140-0177 'Transit (ORCAM) Amsterdam' (ORCAM being 'Originating Region Code Assignment Method'). SSR Code 0143 is not unusual.
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Old 24th Dec 2014, 22:09
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EU and UK ORCAM Amsterdam Centre

No doubt different in Ukranian airspace
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Old 24th Dec 2014, 22:13
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Ukraine is an ECAC state so you would expect it to use the EU ORCAM codes at least on entry into Ukraine airspace.
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Old 26th Dec 2014, 12:26
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where no conflicting code is in the system the ORCAM code is retained.

Google EUROPEAN SECONDARY SURVEILLANCE RADAR (SSR) CODE MANAGEMENT PLAN - appendices A & B for maps of the areas involved
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