Rules for Wireless Products

Wireless & IoT Other Radios
1

Hello,

I am working on a project to remote control some lights (battery powered). I am new to Arduino and wireless projects.

We are trying to get the timing of the lights to be super precise (like within 0.001 second).

My coworker started with 433mhz transceivers but was running into some interference problems so he switched to 315mhz.

Now my vendor is trying to propose that we switch the project over to 900mhz. But they need us to confirm that we won’t be breaking any FCC rules. They want us to answer that question before they even look side-ways at the project.

Is there a good “easy to read” place to find the FCC rules?

Can anybody point me in the direction of someone (or a company) that could help me?

Thanks. I know this is a vague open ended question.

2

Hello Christopher.

The range of frequencies between 902 and 928MHz are in the [ISM band and those would be open to you. You’re going to run into interference in the 900MHz band too, but it’s a lot better up there than in the 315 and 433MHz bands. Most devices in the 900MHz band also use some sort of error detection and correction so that helps as well.

We don’t have a listing of FCC rules, but the best place to get those would be from the FCC directly. You might start on their website, or [jump here for the rules regarding the ISM band.](eCFR :: 47 CFR Part 18 -- Industrial, Scientific, and Medical Equipment)](ISM radio band - Wikipedia)

3

Thanks. I will check out those links.