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Old Jun 02, 2012, 04:51 AM
asaad_civic99 is offline
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Reducing Tx output signal power


Hi,

I have bought this RTF indoor heli:
http://www.amazon.co.uk/Merlin-Trace.../dp/B0039JCFU2
a 2.4 Ghz Tx is included. Regulations at my country state that the signal power output should not exceed 10 mW. After asking a friend with some experience in RC stuff, he said that most probably all transimetters exceed 10 mW. How can I reduce the signal power of my transimtter? Is there an RF amplifier that can be deactivated or temporarily removed from Tx to guarantee reducing the power below 10mW? Is there more simple & easy ways to do this?
Any advice/help is appreciated.
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Old Jun 02, 2012, 05:23 AM
renatoa is offline
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10mW limit is for continuous (analog) transmission, and is valid worldwide.
RC is digital, and don't transmit permanently, but pulsed, and is safe.
Is regulated same way as the wireless routers, which are legal in your country, I guess .
Old Jun 02, 2012, 05:49 PM
theaton56 is offline
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What country are you in ?
Old Jun 03, 2012, 11:11 AM
LesUyeda is offline
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"RC is digital, and don't transmit permanently, but pulsed, and is safe."

Not quite true. The "data train" is digital, but the carrier that carries the data is analog, and continuous.

Les
Old Jun 03, 2012, 03:55 PM
theaton56 is offline
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Les, 2.4 GHz is not a continuous carrier. It is pulsed.
Old Jun 03, 2012, 03:59 PM
renatoa is offline
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Google "ism band duty cycle", please
Old Jun 04, 2012, 11:10 AM
LesUyeda is offline
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So I'm a dinasaur (sp):-)))))))))))

Les


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