[SOLVED] RF Accuracy from VCTCXO Specification

[HardwareChap]

Hi

If the transceiver is transmitting at 433 MHz, with a reference VCTCXO of 30 MHz ±1 ppm, does that mean that the transmitted frequency accuracy will be:

(433/30) * 1 ppm * 30 = ±433 Hz.

So, the transmit frequency would be 433 MHz ±433 Hz? Not taking into account any tolerance of the transceiver chip itself though.

 

[volker@muehlhaus]

Yes, your math is correct.

There will be no additional tolerance from the transceiver chip because you are using a PLL.