QUOTE(BingYao @ Sep 13 2008, 10:59 PM)
Mind to elaborate further?
Ok my friend let me share with you something here. I was monitoring for more than 20 over years....I start monitoring since i was teen age. Most of my monitoring is on HF. Example broadcast station..we can receive..BBC. Voice of America...Radio Australia...Radio Netherland..Algeria and so on. NEWS well we get first hand news....
One of my favourite is I like to monitor on SSB....I have been monitoring Military, Police, Custom, Marine...secreat service , Air Craft and so on
even at one time when US Air Force was striking Iraq I was monitoring it live on the air.....Through my experience the most interesting
in communication is monitoring on Aviation Frequency. Among the Airman or Pilots they call it Aviation Language...i Love to monitor them.
For information aircraft is on VHF AM and also on HF SSB depend on which air route or sector.....they are.
Generally speaking, for VHF high flying aircraft can be received up to 200 miles away. As rule of a thumb, frequencies below 123Mhz are allocated to Tower and approach units and those above 123Mhz to Air Traffic Control Centre (ATCC) although there are exceptions to this.
For example the Air Traffic Control Tower which located at KLIA only guide aircraft take off and landing. and also ground communication with an aircraft. Any aircraft which fly 5,000 feet and above ATCC (Air Traffic Control Centre) which is located at Subang airport will take over......for info
this ATCC is not located at the Subang Tower at terminal three but they are located on the other side of the building. For your info i have been to this
place and talk to some of the ATC (Air traffic controller)
Example if one aircraft from KLIA going to fly to Bangkok....after given clearence from the control tower at KLIA.on 118.500
Example: ...."Lumpur TOWER this is Malaysian two three four....we are ready for take off..... Tower will reply ..." Malaysian two three four Climb 5,000 ft Report Lumpur Approch North on one two four two....You are clear for take off......
Example when the aircraft airborn at 5,000 ft they have to change to other freq example if the aircraft enroute to the north they
have to report to Lumpur Approch North on one two four two or they might say One Two Four Decimal Two (124.2) ...
Example when the aircraft MH234 rech at Flight Level 5,000 feet they will call on 124.2.....
......"Lumpur Approch North Malaysian Two Three Four on One Two Four Decimal Two..... the ATC will reply Malaysian Two Three Four Climb at Flight Level One Four Zero(14,000ft) right turn track direct KIMAT. and so on.....
Any aircarft enroute to Kota Kinabalu...after pasing certain miles towards south cina sea...the pilot have to report to Singapore ATCC on HF (High Frequency) on Eight Niner Four Two 8942........
For your info while typing this info at the same time i am also monitoring on 124.2 very heavy traffic now !!! and i am also monitoring on 9.435MHZ (HF) listening on broadcast...FEBC MANILA transmit in Indonesian Language.....
So there are alot of things to monitor...........
If you have a receiver try to monitor some of this aviation frequency.
to name a few....
124.200
119.450
118.800
118.500
Bare in mind there are on AM mode...
Hopefully you get some info now.....Enjoy yourself and have a nice weekend......