BA Centre

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BA Centre

Postby saxonia » Fri Mar 03, 2017 1:52 pm

Hi all ... BA Centre on 131.55 used to be very busy a few months back but not heard a peep in ages .. Anyone got an update .. 131.8/131.9 is still active

Cheers
Mike (Cardiff)
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Re: BA Centre

Postby Minus1 » Fri Mar 03, 2017 4:35 pm

Virtually all of the airline frequencies between 131.4 and 131.9999 are now 8.33 kHz channels.

"131.555" is mostly Swissport at various airports , and Menzies Ronaldsway

Speedbird Ops is on "131.880"
Speedbird Engineering is on "131.905"
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Re: BA Centre

Postby saxonia » Fri Mar 03, 2017 6:04 pm

Then I wonder where callsign BA Centre has gone ?

It was very active until recently. Swissport 131.555 and BA Centre 131.55 could be heard at the same time
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Re: BA Centre

Postby Minus1 » Sat Mar 04, 2017 1:34 pm

Try "131.785" ie 131.7833
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Re: BA Centre

Postby Minus1 » Sun Mar 05, 2017 8:22 am

It's very kind of Swissport to show their frequencies for many of the airports they use:

e.g. Manchester http://www.swissport.com/network/networ ... b0c4274544

Also, yesterday, I identified Dnata (pronounced 'd' as a child would say it, and 'nata") at Manchester = 131.7916 "131.790"
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Re: BA Centre

Postby saxonia » Sun Mar 05, 2017 9:52 am

Still no joy on131.785 (or 875) all I can think is that's it's consolidated into 131.8/9 ?
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Re: BA Centre

Postby saxonia » Fri Mar 24, 2017 11:47 am

After weeks of searching .. BA CENTRE OPS at LHR has now moved from 131.55 to 131.775

well done me !!
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Re: BA Centre

Postby Minus1 » Sat Mar 25, 2017 8:25 am

Sorry, but you are slightly wrong.
The frequency is 131.78333 as previously stated.
That equates to a "channel" (as keyed on aircraft radios of "131.785").
Your previous post suggest you misunderstand 8.33 channels and assumed I had mistyped 131.875.
Not surprisingly you heard nothing on 131.875.

Most scanners are designed for 25k AM bandwidth, and if you tune 8.33 kHz away from the true freq, you will still hear the signal!
Hence your belief that you are receiving 131.775.
This may help you understand how 8.33 channels are numbered:
http://www.eurocontrol.int/sites/defaul ... 0table.pdf
I have an SDR shot of a BA transmission to show this, but this forum doesn't allow attachments :rolleyes:
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