Esato Mobile
Sony Ericsson / Sony : General : Why FM radio depends on headset as an antenna?
> New Topic
> Reply
< Esato Forum Index > Sony Ericsson / Sony > General > Why FM radio depends on headset as an antenna? Bookmark topic
Page1234>

wilson Posts: 116

I think is time for SE to develop a phone with built in antenna for radio FM. This will allow even the bluetooth headset to work freely with FM radio.
Just a suggestion. thanks
--
Posted: 2005-09-16 11:42:12
Edit : Quote

bondock Posts: 155

Could be something to do with interference. Maybe that's why separate antennas are used.
--
Posted: 2005-09-16 11:44:18
Edit : Quote

batesie Posts: > 500

for good reception, you will always need an aerial. take your car aeirial off, see if you can still pick up FM.....

--
Posted: 2005-09-16 11:44:51
Edit : Quote

private Posts: 344

headset acts as a antenna. but SE can make the radio to start atleast without plugging the headset.
--
Posted: 2005-09-16 11:46:45
Edit : Quote

wilson Posts: 116

yah I know the function of antenna and to quote someone there, not all cars has external aerial and still they are having the better reception of signal. But to make things handled potably with this new technology I think it is possible for built-in aerial for radio.
--
Posted: 2005-09-16 11:49:52
Edit : Quote

batesie Posts: > 500

you'll find that all portable and pocket FM radios use the headphones as an aerial.
--
Posted: 2005-09-16 12:14:01
Edit : Quote

jcwhite_uk Posts: > 500

I dont think that I have ever seen an FM radio with a buitl in aerial.
--
Posted: 2005-09-16 12:45:57
Edit : Quote

Ratti3 Posts: 46

Quote:
On 2005-09-16 12:45:57, jcwhite_uk wrote:
I dont think that I have ever seen an FM radio with a buitl in aerial.


I second that.

I used to makes radios (a little hobby of mine). AM radio use internal antenas (its a ferrite rod with fine wire wrapped in a coil). FM radios do not use ferrite rods but rely on a straight antena/cable. Dont know if you noticed but if you wrap the earphone cable near the phone the radio dies!
--
Posted: 2005-09-16 12:56:53
Edit : Quote

Kryptik Posts: > 500

Remember those stories of injured war veterans with steel plates in their skulls? They occasionally picked up radio signals, or so it was claimed... Wonder what would happen if someone stuck an antenna on their heads... This message was posted from a Nokia
--
Posted: 2005-09-16 14:07:56
Edit : Quote

danska Posts: 83

Quote:
On 2005-09-16 11:46:45, private wrote:
headset acts as a antenna. but SE can make the radio to start atleast without plugging the headset.

Unless you live not too far from the transmitter (and i mean very close) you still wouldn't pick up much at all. All you would hear is static. For cars without the big antennas, i thought they used a wire in the winshield or something like that. Either way, there is still an antenna.
--
Posted: 2005-09-17 03:01:51
Edit : Quote
Page1234>

New Topic   Reply
Forum Index

Esato home