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Home > How To > Be an RC God | How to pick wireless frequencies for your RC
Be an RC God | How to pick wireless frequencies for your RC

Be an RC God | How to pick wireless frequencies for your RC

By  GB Blog Official 2016-11-10 1140 1

For RC frequencies, there is a dizzying array of standards and choices. Don't worry, in this post, we will explain some simple guidelines to help you pick wisely.

Typical frequency ranges

RC and amateur UAV gear usually operate in the following frequency ranges:

 RC quadcopter● 72MHz: older analog RC gear in the US

● 35MHz: older analog RC gear in Europe

● 433MHz: RC and telemetry, in Europe

● 900 - 915MHz: video and telemetry, in the US

● 1.3GHz: video

● 2.4GHz: digital RC gear, video and telemetry

● 5.8GHz: video


Don't share the same frequency

It is an entirely wrong conception that transmitters and receivers should be in the same frequency range; actually you'll want to choose your equipment to avoid this!

Even if they use different frequencies, try to keep transmitters (i.e. telemetry and video) and receivers (RC and GPS) as far apart as possible. The only time you should consider having two radios on board that share the same frequency is if they are digital spread-spectrum radios, such as those in the 2.4GHz range.


Less is not always more

In general, the lower the frequency, the longer the range because it can go around obstructions better, so 900MHz video tends to have longer range than 2.4GHz video. But digital transmission technology can more than compensate for that, so it's not a hard-and-fast rule.

For instance, a high-end spread-spectrum 2.4GHz wireless video setup can outperform a lower-end 900MHz one.


Avoid crowded frequency ranges

RC quadcopter frequency rangesSome frequency ranges are more crowded than others.

For instance, for indoors and in urban environments, 2.4GHz has to compete with everything from WiFi to Bluetooth to cordless phones. 900MHz has much less traffic, only competing with some cordless phones.

1.3GHz is quite close to the frequencies the GPS satellites transmit at, and it can significantly degrade your GPS performance. If you are using a 1.3GHz transmitter, keep it as far from your GPS module as possible.


Sample recommended configurations:

● RC / Telemetry / Video

● Configuration 1 (US): 2.4GHz / 915MHz / 5.8GHz

● Configuration 2 (Europe): 2.4 GHz / 433MHz / 5.8GHz

● Configuration 3 (US): 2.4 GHz / 915MHz / 1.3GHz

● Configuration 4 (Europe): 2.4GHz / 433MHz / 1.3GHz


 You may also want to read:
 Flying High | 4 quick tips to choose your drone RC Transmitter
 How to fly aircraft like a Pro - for beginners

 


For the purpose of this article, the featured image(s) were sourced from the internet. For any issue, please contact us, and we will deal with the matter promptly.

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