Essex Ham Chat

Back to Essex Ham Chat...

Is 900MHz frequency UK legal, and do I need a license please? (1 reply and 1 comment)

simulsys
2 months ago
simulsys 2 months ago

I am investigating the possibly commercial use of a Freakduino 900MHz Arduino-compatible wireless board as an Internet of Things device, and wondered if 900MHZ is legal in the UK and whether I need a license for it and others, please?

Can anyone help, please?

Wireless Hardware
The addition of an integrated wireless radio based on the 900 MHz version of the IEEE 802.15.4 protocol (same radio protocol as the XBee) allows for wireless control of devices or wireless sensor data collection. 900 MHz is the preferred frequency band for many people using wireless because it's license free similar to 2.4 GHz but is much less crowded. Lower frequencies also travel greater distances so you'll see a range improvement with the 900 MHz radio. It also supports simpler modulations such as BPSK. This will decrease data rate but greatly improve range.

G0UIB
2 months ago
G0UIB 2 months ago

900 MHz ISM is only license free in region 2, the Americas.  You would interfere with >1/3 of the GSM uplink and the bottom of the downlink, then the man from OFCOM would come round for a chat.

simulsys
2 months ago

Thanks for this, it saves me a lot of grief; as you can see, I did wonder. I suppose given the levels of interference they are unlikely to grant a normal license?
Tally ho!

Back to Essex Ham Chat...