Cordless Phone design | |||||||||||||||||
Ever wonder why, with a mobile phone you can speak from around the world without needing a stupid pointy "1" at its end called an antenna, (my nokia doesnt have one) but your home cordless with no more than 2 metre radius needs two pointy hairs at the receiver end and a stupid "1" shaped aerial at the cordless phone end? Is this a design incompetence by cordless phone manufacturers, it is very annoying to look at the shapes.
marun, Sep 29 2006
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Becuase of emissions regulations, and physics.
Home/private/unlicensed radio transmitters can only trasnmit so much power, with so big an antenna, which more or less dictates a balance between transmitter power and antenna size, providing the antenna you see.
Higher frequency phones have shorter antennas
Mobile phones and their base stations can use higher power, as they are a licensed radio system, plus the base stations have larger antenna arrays.