Quick Q
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RE: Quick Q
Tony,
AM is amplitude modulation
FM is frequency modulation
PCM is pulse coded modulation over FM signal.
Modulation how you vary the signal to communicate with the receiver
With PCM a code is transmitted to the receiver. The special code is what the receiver acts on. If the signal is lost long enough, the receiver goes into failsafe mode. Thats basicly it. PCM receivers can only be used with a matching brand radio with the same version of PCM.
Dave
AM is amplitude modulation
FM is frequency modulation
PCM is pulse coded modulation over FM signal.
Modulation how you vary the signal to communicate with the receiver
With PCM a code is transmitted to the receiver. The special code is what the receiver acts on. If the signal is lost long enough, the receiver goes into failsafe mode. Thats basicly it. PCM receivers can only be used with a matching brand radio with the same version of PCM.
Dave
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RE: Quick Q
Tony,
PCM is coded FM and is safer then plain FM or AM. If it wasn't better,would the $2,500 radios be using it? I use PCM for the more expensive planes.
Dave
PCM is coded FM and is safer then plain FM or AM. If it wasn't better,would the $2,500 radios be using it? I use PCM for the more expensive planes.
Dave
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RE: Quick Q
ORIGINAL: davewallace
PCM is coded FM and is safer then plain FM or AM. If it wasn't better,would the $2,500 radios be using it?
PCM is coded FM and is safer then plain FM or AM. If it wasn't better,would the $2,500 radios be using it?
It's really a personal preference question. Each technology has it's plusses and minuses, and most people just think "costs more, must be better." You'll have to make up your own mind, Tony, based on how much you want to spend and what the RF conditions where you fly are like.