First I would like to wish you a happy new year.
I am new to the community and I would also like to thank you for the hard work.
I am planning to install a first node in my summer house in Northern France. It is based on the Mikrotik LR8 and 868 Omni antenna. I have a view on 15 km from my house on one direction, which is on a hill (but not on top of the hill). I am planning to replace an old satellite dish. My questions
- Does it matter if the omnidirectionnal antenna is close to the house wall (50 cm)?
- Should the omni antenna be on top of the house or is 2 meters sufficient?
- In the brochure I can see that the antenna is not completely omnidirectional as it has better gains in some direction.
Can you confirm?
How can I know how to point the antenna?
Sorry for those silly questions.
This seems to be a bit mixed up in terminology.
In LoRaWAN a “node” typically refers to an “end device” which is a battery powered sensor or (in rare limited cases) actuator.
In contrast the LR8 is a “gateway” - a more expensive and more power hungry device (almost always mains powered) which bridges LoRaWAN air signals from end devices to the Internet where they can reach a relevant LoRaWAN server, such as TTN’s infrastructure.
So it seems like you are talking about deploying a gateway, not a “node”
The antenna should be as high and as free as possible.
To answer your questions:
- This will reduce the coverage significantly compared to an antenna on top of the roof
- The antenna should be on top of the roof e.g. on a mast
- The antenna is omnidirectional. What you see is the vertical diagram, the horizontal diagram is a circle
Depending on where you are, take care of the output-power. The antenna has a gain of abt. 3 dBd, this gain can be used to compensate the loss of the antenna-cable or you have to reduce the tx-power by 3dB.
There is quite some information on antenna placement in this Helium Article!
Thank you for your kind answer.
I can place the emitter near the top of the roof, but not on top of the house.