Installation near THR RWY 16 at Melbourne

[jumpuFOKKERjump]

A repost, the original degenerated into a reasonably amusing series of observations about some members of the community's attachment for the musical form known as 'doof doof' and a likely link to this installation. Please put any more posts along those lines where that thread now is: Jetblast. Flying Spike's post almost made me cack myself, circle work indeed...
http://www.pprune.org/forums/showthread.php?t=326610

These appeared a while ago alongside the Sunbury road, well short of the 16 threshold at Melbourne. They appear to have been lashed up out of marine ply, foam plastic and tek screws in a very temporary/improvised fashion and each have a line of pa-type speakers inside. The equipment hut has what looks like a rack of routers and a couple of pc and a radio link.

I figured they are some sort of bird frighteners. Other submissions:
:= Ultimate Fallback communications: "Not here Speedbirdxxx, over THERE!"
:8 Ground based active noise reduction,
any other ideas?

http://i186.photobucket.com/albums/x147/jumpufokkerjump/P05-03-08_1352.jpg
http://i186.photobucket.com/albums/x147/jumpufokkerjump/P05-03-08_1351.jpg

http://i186.photobucket.com/albums/x...03-08_1356.jpg
http://i186.photobucket.com/albums/x...03-08_1357.jpg
http://i186.photobucket.com/albums/x...03-08_1358.jpg

ps. One poster chided me for breaching security by placing these details in a forum open to birds - please cover your budgie's cage while reading this.

[Jabawocky]

Take some bolt cutters, chop your way in, pick the lock, and sit in the donga.

Its bound to be alarmed and monitored, so when they come to see who is there, ask them!

Its all in the national pprune interest of course!

J:E

[sms777]

That's just absolutally brilliant Jabba!
It had to be someone like yourself to come up with such a bright idea.
If i lived in Melbourne i'd give it a go myself.

Go for it Fokker, let us know how you went!:ok:

[Roger Standby]

Make sure you take your ASIC!

[Clear to drop]

Could this be some sort of SODAR equipment?

http://en.wikipedia.org/wiki/SODAR

Is this approach prone to wind shear or turbulence?

[Capt Wally]

it's quite obvious as to what they are. There the new staff seats for the QF engineers, you see with their up & coming huge payrise demands(outrageous 5 %) GD doesn't want them to sit for a minute so he (GD) can get more productivity out of them therefore justifying the monsterous increase in operating costs by way of a wage break out:bored: And if by chance that the engineers do manage to sit upon those sharp objects GD has an alt plan, yelling so those megaphones scare off the guys back to the slave labour camp at QF:E Then again they could be an anti-terrorist device, you see the terrorists will just stand there at the fence line with B*** in hand in utter amazement like all the other people standing there inc security guards & wonder WTF are they, then the security guards will pounce on them but not before checking their ASICS only to find out their really the hired engineers:E


CW

[Howard Hughes]

Look like speakers for a Def Leppard concert to me...;)

[Stationair8]

Qantas management have installed them so that they can monitor productivity out of the last remaining employees before replacing them with new staff.

Perhaps they are their to keep the dreaded planespotters away from the flightpath so that they can't photograph aircraft and then put the photos on websites?

[homeless1]

are different frequencies coming out of speaker sets ? is this a more accurate system of markers for the ILS ? are the microphones ground or aircraft based ?

[homeless1]

hope those speakers have drainage holes in them !!!!!!!!!!

[man on the ground]

are different frequencies coming out of speaker sets ? is this a more accurate system of markers for the ILS ? are the microphones ground or aircraft based ?

No, nothing to do with the ILS. Units to measure 'noise' from the landings, I understand. Will try to find out more.

[Lasiorhinus]

homeless1, I have no idea what you're talking about. It never rains in Australia!

[Capt Wally]

hey 'las' not too sure where you live but it's been rainin' here just to the north of ML for a couple of days with snow !:bored:
landing Noise checking devices hey?, hmmm sounds (pun) plausable I guess but best they take 'em up nth where landings are 'harder' than ones from down sth:}


CW

[Lasiorhinus]

Fair point, 'wal'; I'm not too sure where I live, either. :ok:

[Capt Wally]

ok 'las' describe to me yr surroundings as in what's near yr joint that sticks out & i'll try to help you find out exactly where you are. Yr in Vic somewhere, how hard can it be to find out which part of the best state in Oz yr in!:E


CW:ok:

[homeless1]

speakers and microphones are essentially the same thing......maybe these speakers are being used as microphones ????

[PyroTek]

homeless1 is correct, i've used my headphones as a microphone countless times. however, the sound quality from talking into a speaker is fairly crappy.

[Spodman]

Following recieved from somebody who doesn't seem to want to be quoted:

"They're experimental instrumentation for detecting wake turbulence, apparently. The aim eventually being to reduce the required spacing on final depending on the conditions of the day."

The guesses about circle work were accurate, but only wingtip circles:ouch: