Ebyte LoRa E220 (LLCC68) raise maximum distance

[rb3rg]

@Renzo,
Excellent job, I’ve dug into your lib, and it is a really good job.
I plan to use it in an extensive mesh network with around 40 nodes.
During my tests with E220-900T22D in an open area, I could reach only a 924m distance using 5dbi antennas. This with 22db, 2.4kbps, 200bytes pack len.

Have you ever run any distance tests with this module?

Thanks again, excellent job.

[Renzo Mischianti]

Hi rb3rg,
It’s important to use the correct antenna (for the relative frequency) and to power the device with a stable 5v with good amperage.
I ask to another use that use the devices in a agriculture product how he manage the device to get the maximum distance.
Bye Renzo

[rb3rg]

You are right, good clean power is really a demand for those modules;
I did a second test in a rural area, reaching 1750m.
I’ve forgotten to mention… I’m using 915MHZ.
In the urban area, 915 may be a problem with some cell phone towers, some operators use 915.

Still, 1750m is way less than Ebyte claims to reach. In the datasheet, they mention 5km with a 5dbi antenna.

Good to raise this thread so other users can share their finds.

I will conduct the 3rd test with both ends using 12DBi antennas.
Let you know the results.

Thanks

[Renzo Mischianti]

Hi,
I ask to the people that use e32 for a production project.
They say that to raise best performance more than 8km that is the limit of e32) they use a 12dbi antenna positioned ad 4 meter high to the receiver and 8dbi antenna to the sender at 1 or 2 meter height.
They have 868mhz device, and if the use 915mhz antenna the distance is reduced by half (problem start from 4km).

So I think you must consider:
– good voltage and amperage;
– correct antenna (mhz and dbi);
– put the antenna very high;

Keep in touch for the result of your test.

Bye Renzo

[Author]

Posts