I am looking for an external antenna for my Dragino LPS8. I initially thought of a homemade collinear antenna, but I now found the MikroTik 6.5dBi antenna for reasonable money, which would save me some time. Is anyone using this antenna? Would you recommend it for outdoors?
Thanks. The gateway will be located either indoor, or outdoor protected by an IP66/67 case, so that should not be a problem (I still thinking about length of the antenna cable, lightning protection and good height of the antenna). Meanwhile I have ordered the MikroTik antenna and will give it a try.
Compared to surge arrestors with N connetors SMA surge arrestors are quite expensive here.
That is why i installed my mikrotik antenna only “semi-outdoor” (underneath the lightning protection of the building) and used an ethernet surge arrestor to protect the internal installation.
Somehow a part of my Gott lost.
I usw a complete wAP Lora8 Kit with mentioned antenna. Here you can See the coverage on ttnmapper.
The geographic topology ist somewhat Special an in some locations usefull and in other very limiting.
But as visible the coverage with good antennas on both sides ist quite amazing.
Really impressive coverage, probably due to the flat area in your region. Here, close to Düsseldorf, it’s different - slight hills around and heavyly built on. In my opinion, the altitude is the major criteria for good coverage, and the antenna gain more a factor to compensate cable loss.
I now got the microTik antenna (currently still indoor), looks good so far, but need to be brought outdoor to get improvements compared to the stick antenna of the Dragino LPS8.
I use the Horizon 868 8V1 antenna together with my LPS8-gateways. This is an selective antenna for 868 MHz, its gain is compensated by the loss of the coaxial cable between the outdoor antenna and the indoor gateway.
The most limiting thing for the coverage is the Line of Sight. Theoretically the coverage is more than 300km with SF7/125kHz and more than 1200km with SF12/125kHz (14dBm ERP, Semtech SX1276). But if there is something in between disturbing the Fresnel-zone the coverage will decrease significantly.
I have 3 of these( and a 4th soon to be mounted) in the arctic conditions in Northern Norway, and they have survived snowstorms, rain and wind(over 100km/h wind some times). I have mine mounted on tall(40+ meter high) buildings in strategic positions, but due to challenging geography, I haven’t had the change to really test their LOS range.
I would recommend not using a homemade collinear antenna. For such purposes as these, I would recommend the MikroTik 6.5dBi antenna; it will perform well without any personal fabrication of custom parts!
Humm!, responsing to a post that is 1 year old - no doubt OP has long since moved on and done one thing or another
Unless you are having to overcome significant connector and antenna feed losses the recommendation normally is avoid higher gain antennas! Why do you need the extra gain? Higher gain is often associated with 1) increased directionality, 2) notching in coverage out to horizon, affecting nearer nodes, 3) up or down tilt to beam if not chosen or mounted well, 4) potential breach of local radio EIRP limits - unless TX power of gw backed down to compensate - hence often defeating additional gain!, 5) increased cost etc. There is a reason why emergency services tend to use smaller lower gain antenna that give more even coverage that is closer to isotropic radiator. Most GW’s designed/set up OoTB to work with a 2/2.1/3.1/3.5dbi ant… Use Forum Search to see many discussions around ant choice over the years…