Noise on Brest 132.005
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Noise on Brest 132.005
Every time we come through this sector there is noise on the R/T frequency, which can be cancelled by transmitting briefly.
Since the controllers and pilots are all well aware of it, why doesn't anybody FIX it?
Since the controllers and pilots are all well aware of it, why doesn't anybody FIX it?
Join Date: Jan 2001
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misterblue (MSK?.... just a guess) Does that irritating noise have a gallic accent? You say it shuts up after you Tx so could it actually be my mate "Pierre" on the BREST ZS sector? 
To be serious if you really think there is a problem file an MOR and the CAA will follow it up. If on the day you have a problem tell BREST and ask for an alternative Channel. They'll usually give you 132.830MHz, the BREST ZU channel, often band-boxed (combined) anyway with ZS.
Another 8.33KHz spacing problem? Could be.
Rgds BEX
To be serious if you really think there is a problem file an MOR and the CAA will follow it up. If on the day you have a problem tell BREST and ask for an alternative Channel. They'll usually give you 132.830MHz, the BREST ZU channel, often band-boxed (combined) anyway with ZS.
Another 8.33KHz spacing problem? Could be.
Rgds BEX
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We have similar problems in the London TMA. With cutbacks over the years in staff (NOT CAA) responsible for policing radio frequencies it's increasingly difficult to locate sources of QRM, especially the intermittent type. A recent problem close to Heathrow was found to be something like a baby alarm which, understandably, took many months to find. Other problems have been caused by pirate radio stations with transmitters being used by people with no technical knowledge, dodgy taxi firms, CB set-ups, etc. For various reasons they can take a long time to find and even when they are found it's sometimes not easy to shut them down immediately..
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The infamous "TOMY" baby alarm has caused problems up & down the country. NATS radio investigations dept in conjunction with the Radio Communications Agency has been kept very busy with this!
One of the problems with RF interference is that it is usually of very low power and only receivable by line of sight i.e. above in the air or very close to the source. An airbourne platform fitted with direction finding equipment has been trialled but costs are very prohibitive.
Much useful information can be obtained from the pilots who hear the interference (if only they could DF it!) A big problem in the vicinity of major cities is Pirate radio stations. Sometimes these "saviours of the community" use home built transmitters kicking out hundreds of watts into tiny areials, these kick out numerous harmonic frequencies some of which are in the air band. These signals are modulated in FM and are picked up on AM airband receivers as mush.
If only aircraft could switch their receivers to FM demodulation where they could hear the station clearly and pick up an ident. (that way the RCA probably know where they live and shut them down much more quickly!)
One of the problems with RF interference is that it is usually of very low power and only receivable by line of sight i.e. above in the air or very close to the source. An airbourne platform fitted with direction finding equipment has been trialled but costs are very prohibitive.
Much useful information can be obtained from the pilots who hear the interference (if only they could DF it!) A big problem in the vicinity of major cities is Pirate radio stations. Sometimes these "saviours of the community" use home built transmitters kicking out hundreds of watts into tiny areials, these kick out numerous harmonic frequencies some of which are in the air band. These signals are modulated in FM and are picked up on AM airband receivers as mush.
If only aircraft could switch their receivers to FM demodulation where they could hear the station clearly and pick up an ident. (that way the RCA probably know where they live and shut them down much more quickly!)
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Hi, i have an airband reciever and i usually only listen to one sector of London for a period of time. THe frequency is 133.07 and it could be the cowly sector of London. I would be interested to know where the planes decending to bovingdon and clippe are going to?.Also if the controllers for this sector reads this msaage-i said hi!lol
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jetset296, if you hear traffic going to Bovingdon (BNN) it`s probably landing at Heathrow and the ones going to CLIPY are usually inbound to Stansted. 133.07 is the Cowly/Welin Sector at West Drayton. Anything else you want to know...? Cheers, BB!
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Oh right, thanks a lot!So when the planes reach Bovingdon, do they go straight for the approach into heatow, or is it also a holding patten??Does a seperate controller handle the Bovingdon area, opr is it the cowly controller?Whats the difference bnetween a radar heading and a normal heading??thanks!
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I have purchased an airband receiver and i live directly under the flight path for runway 33 at Birmingham Intl. When 33 is in use, i sort of understand what the pilots are doing, but when 15 is in use, it totally confuses me. The planes get vectored, obviously at higher altitudes, but i would be interested to know what the procedure is for planes coming past daventry/towards 33 for 15-it confuses me!thanks a lot.
