faq‎ > ‎

TVB59X RF Frequency Accuracy

posted Sep 27, 2010, 10:59 PM by Jaewon Yim
Software before V6.12.19 was ignoring under 100kHz unit. But V6.12.19
delivered to you on August 20 is using Hz unit.
For 474MHz, old and new version controls precisely but hardware may
have error due to oscillator accuracy.
Our oscillator has +/- 2.5 ppm error which is +/- 2.5 *474 Hz= +/-1185
Hz error range.

Broadcasting quality modulator use +/- 1ppm oscillator which may
reduce error range to +/-474 Hz. +/-1ppm oscillator is not used for
our modulator due to other issues like poor phase noise with small
dimension or big dimension and cost.