Why All FM Radio Enabled Mobiles required to insert Earphone first, to listen Radio?

the ear phone wire has a small box on it if u notice....it contains frequency receiver u may relate it to traditional antennas in radio sets

thats the reason u need to attach it

if it were inside the mobile handset it would provide as much clarity in reception of the voice signals

The wires of the headphone or earphone act as the antenna for the FM radio. Without the headphone or earphone plugged in, the FM radio has no signal reception so there is no point in having it turned on so it shuts off automatically. The small box on the wires contains a microphone and has nothing at all to do with the FM radio.

Fm Radio Earphones

all phones do not have in-built radio antenna or signal receiver.the headphones have 2 jobs .1)to act as an antenna for the radio.and 2)to act as a headphone.So even in loudspeaker u have to have the headphone attached to the phone.it stops the radio because it cannot receive any stations for itself's in built radio.

Coz the earphones helps to get the signal

Well i guess the manufacturers created the phones tt way coz i guess it wld be much more compatible ...

Imagine u were waiting for an important call coming in and u didn realise it when it rung.... ur radio was blasting way to loud .... another reason i guess its dun to their components in the phone... mayb u cld chk it out with the phone shop seller , mayb he mite be able to give u the answer...

good LuCk !! ;)

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It acts as an antenna.

Dont know ask the manufaturer.

there is no such thing you have to have the headphones. I have looked into it