nrf9e5 channel centre frequencies

[Damien]

Hi

We are investigating Hong Kong certification for our nRF9E5 based equipment in the 868 band

The snag seems to be that required channel centre frequencies are "odd number" of 200 kHz, i.e. 864.9 etc.

I know that nRF9E5 operates on "even number" centre frequencies e.g. 864.8 etc.

Is this hard-coded in the chip; or is there perhaps a way of achieving the other frequencies?

Thank you.

Damien

www.ofca.gov.hk/.../hkta1049.pdf

Extract from the above Hong Kong spec:

In the 865 – 868 MHz band, the equipment shall operate on channels of 200 kHz spacing. The channel centre frequencies are 864.9 MHz + (0.2 MHz * channel number)

[Jon Gunnar]

Hi,

The operating frequency of the nRF9E5 is generated from the crystal frequency, and with the crystal frequency options available for nRF9E5 (4 MHz, 8 MHz, 12 MHz, 16 MHz and 20 MHz) it is only possible to use the even number centre frequencies when operating in the 868/915 MHz band.