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Old 06-03-2003, 08:02 AM
Mr T.
Join Date: Oct 2002
Location: Zagreb, CROATIA (HRVATSKA)
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Default Should PCM receivers really cost more?

Analog PPM is a thing of the past, it started dying when first computer radios came to market.

There is stepping that originates from A/D conversion in the transmitter and there is stepping that comes from timing circuits in IPD receiver MCU. No matter how strong the signal is its resolution can't be better than four times MCU clock pulse period and that is only if MCU has 16 bit timer/PWM circuits. If it has 8 bit timer/PWM circuits then things get worse.

Originally posted by Lynx
IPD is just a filtered PPM signal, so it's fully analog (no stepping at all)