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Extending RFM69HCW range
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Extending RFM69HCW range

by mh512 on Sun Feb 02, 2020 6:55 am

Hi

I'm doing a project in which two devices both equipped with RFM69HCW 433MHz radio chips communicate.

https://www.adafruit.com/product/3071

It's working OK but i've noticed that when there are people crowded around either box, the signal fails to get through.

The antennas I'm using at present are these: https://www.amazon.co.uk/433mhz-Antenna ... ial&sr=1-5

I'm guessing inceasing the length of the antenna or putting the antenna on a cable so it can be fixed to a higher position will help with this, but I can't find any longer antennas for this frequency.

Would buying these help at all?
https://www.amazon.co.uk/TECH-TOO-Omni- ... 69ab0086b2

Any thoughts greatly appreciated.

Thanks
mh512
 
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Joined: Wed Nov 13, 2013 4:06 pm

Please be positive and constructive with your questions and comments.