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Published 20 hours ago • verified publisher icon sandeepmistry

Can you set finer frequency like 921.2?

Open Ryan-AD opened this issue 4 years ago • 6 comments

Wondering if it is possible to set different frequencies (presume that I have regulatory body permissions)

Ryan-AD avatar Oct 07 '21 02:10 Ryan-AD

Sure. You can set 920123456 as a valid frequency. Or 920.123456E6.

IoTThinks avatar Oct 07 '21 03:10 IoTThinks

Thanks, what does the E6 bit at the end mean?

Ryan-AD avatar Oct 07 '21 04:10 Ryan-AD

e6 mean 1000000 (mega)

as206em avatar Oct 08 '21 07:10 as206em

Sure. You can set 920123456 as a valid frequency. Or 920.123456E6.

You mean I can set any frequency like 470E6 which is used in china?

wong-hao avatar Oct 29 '21 05:10 wong-hao

Yes, you can set 470e6. Make sure the chip support the frequency

470e6 = 470 * (10 power of 6) = 470 000 000 = 470 Mhz.

IoTThinks avatar Oct 29 '21 05:10 IoTThinks

Be aware that even if you chip support the new frequency , the breakout board you are using might be specifically optimise for a specific frequency . Inductor-capacitor network are required before going to the antenna. A slight frequency adjustment might be fine , but going way out the design and TX on full power will result with alot of power loss and might event damage the chip

T1j3ff avatar Sep 05 '22 23:09 T1j3ff