CODEWITHSUNDEEP
raspberry-picommunicationlora
clf maris
clf maris

Reputation: 51

LoRa point-to-point limitations

I want to set up a point-to-point communication link between two Raspberry Pi using LoRa.

I know for lorawan there is (at least in Europe, where I live) a duty cycle limitation so the nodes can transmit only for an average of 30 seconds uplink time on air, per day, per device.

Is this valid also for point-to-point lora communications? Because my sender keeps on sending.

I am using the code provided here.

Upvotes: 5

Views: 3187

Answers (1)

arminb
arminb

Reputation: 2103

Yes, this is also valid for your LoRa application, since it is emitting radio waves. You can look up limits for europe for specific frequency bands in the ERC Recommendation 70-03 (page 7). In the ERC Recommendation 70-03 on page 42 you can then look up which of the frequecny bands are allowed for each country.

Example

Let's say you live in Germany and you want to use frequency 869,400 MHz to 869,650 MHz (this frequency band is called h1.6):

enter image description here

A quick lookup in the ERC Recommendation 70-03 page 39 shows that this band is allowed to be used in Germany:

enter image description here

Further this specific band allows you to use 10% time-on-air (duty-cycle) for your transmitter. This basically means you are allowed to transmit 1 second and are obligated to pause 9 seconds after that.

Upvotes: 2

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