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How much should I separate between antennas?
When you install your booster system’s device antenna, you should ideally keep 25-30 feet of VERTICAL separation from the tower antenna. If this vertical separation distance is not possible, you can employ horizontal separation to achieve MRSD.
What is the minimum clearance distance you should maintain from antennas?
The easy answer is that you should maintain a minimum mounting distance of at least 1/4 wavelength apart for the lowest frequency antenna within the same horizontal plane. For VHF antennas, that translates to roughly 19 inches. This is the rule we use when installing omni antennas on a the trunk of a vehicle.
How far apart must LTE antennas be spaced?
In theory, one wavelength of separation should be sufficient, but it depends on the environment and the amount of signal scattering. Current LTE operator guidelines for spatial separation are on the order of 2 to 3 wavelengths, or 2’7” to 3’11” at 750MHz.
Where should I place my antenna booster?
It’s recommended to place the antenna on or near the edge of the roof. If you’re using a directional antenna, such as a yagi antenna, make sure to point it away from your roof and in the direction of the nearest cell tower provided by your carrier.
How far apart do Yagi antennas need to be?
When using multiple yagis, they should ideally be mounted at least 10 ft apart and not pointed at each other to prevent any interference.
Is there a minimum separation between two antennas?
It’s known that there has to be a separation between antennas of same frequency to minimize interference. Antennas operating at the same frequency shouldn’t be used as two independant systems – this is asking for trouble and you will likely get deep cancellation as signals “phase” in and out.
Why is there a separation between Yagi antennas?
But, think about a yagi antenna – it uses extra elements (that act like individual antennas) to form a tighter beam and benefit from “gain” i.e. more power is sent in one direction so, properly designed, it doesn’t have to be a problem. It’s known that there has to be a separation between antennas of same frequency to minimize interference.
What should the isolation be for a co-located antenna?
The lowest recommended antenna isolation for co-sited (co-located) antennas is 30 dB (Interferer port to victim port). This is valid for equipment on the same site, belonging to the same system as well as for all systems sharing the same site.
What’s the distance between receive and transmit antennas?
For instance at 300 MHz, the wavelength is 1m and a receive and transmit antenna spaced less than 2m isn’t going to cause any problems. Both are at the verge of operating “near-field” but there’s not much power so no real damage can be done.