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« on: December 26, 2011, 09:35:59 AM »
rajeshbhanushali123
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FlyingMachines




hi all what happen if frequency of Tx is 35MHZ & IF 75MHZ

is it affects range of Tx

if want to increase range & frequency of Tx what to do  Huh?

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« Reply #1 on: December 26, 2011, 11:08:39 AM »
Swapnil
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Hey, here's how it works.
As frequency increases, the signal is absorbed more by physical objects (atmospheric moisture, trees, buildings, etc). Hence you need more power to make up for the signal loss. For constant power, the range decreases because the signal losses increase with increasing frequency.
Again, it's not worth the effort to mess with a transmitter for flying airplanes or choppers.

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