RCU Forums - View Single Post - 2.4 - Why Are They Failing?
View Single Post
Old 01-26-2011, 12:46 PM
  #433  
HellcatAce
Senior Member
My Feedback: (6)
 
Join Date: Sep 2005
Location: Castaic, CA
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 2.4 - Why Are They Failing?


ORIGINAL: Zor

HellcatAce,

Please look up the word ''modulation'' in a good dictionary.

An oscillation of constant amplitude and non-varying frequency or phase is a carrier and does not transmit any intelligence.

It has to be interrupted such as when transmitting Morse code or other codes or it has to be varying in amplitude or in frequency or in phase to carry some intelligence like the commands to our model aircrafts.

The variation is referred to as ''modulation''.

Note _ _ _ I will not pursue the subject.

Zor
Well thats great, except the fact 2.4 radios operate on a digital carrier. That carrier is not modulated in the analog fashion you correctly desicribed. It is a constant oscillating frequency that carries a digital bit stream. Any oscillator can produce harmonics which can be perceived as modulation by any device which must accept outside interference. Last time I looked at my microwave, it didn't have a sharp tuned mask filter system, which would be required to eliminate any harmonics created by the microwave's oscillator.

So in this case, a microwave oven can indeed cause interference to a 2.4 radio.