Changes

Yes, you can use any third party antennas with our routers. Antennas must meet these requirements:

Yes, you can use any third party antennas with our routers. Antennas must meet these requirements:

* '''Antenna connector''': SMA male for 3G/LTE and RP-SMA male for Wi-Fi

* '''Antenna connector''': SMA male for 3G/LTE and RP-SMA male for WiFi

* '''Input impedance''': 50 Ω

* '''Input impedance''': 50 Ω

* '''Minimum input power''': 2W for 3G/LTE and 1W for Wi-Fi

* '''Minimum input power''': 2W for 3G/LTE and 1W for WiFi

* '''Frequency range''': Wi-Fi – 2400-2500MHz, 3G/LTE – 698-960/1710-2170/2500-2700MHz (depending on bands being used)

* '''Frequency range''': WiFi – 2400-2500MHz, 3G/LTE – 698-960/1710-2170/2500-2700MHz (depending on bands being used)

There are more parameters to consider when choosing antennas also:

There are more parameters to consider when choosing antennas also:

* '''Antenna polarization'''' is direction in which electric field oscillates while it propagates through environment. It is important to match broadcasting and receiving antennas polarization: it must be same polarity. In this way the maximum signal is obtained. Wi-Fi antennas are almost always vertically polarized, while mobile antennas are either vertically polarized or cross polarized

* '''Antenna polarization''' is the direction in which electric field oscillates while it propagates through environment. It is important to match broadcasting and receiving antennas polarization: it must be same polarity. In this way the maximum signal is obtained. WiFi antennas are almost always vertically polarized, while mobile antennas are either vertically polarized or cross polarized

* '''Antenna gain''' describes how much power is radiated in the direction of peak radiation compared to isotropic emitter. Different units are used to express antenna gain

* '''Antenna gain''' describes how much power is radiated in the direction of peak radiation compared to isotropic emitter. Different units are used to express antenna gain

* '''VSWR (voltage standing wave ratio)''' is a function of the reflection coefficient Γ, that describes power reflected from the antenna. The smaller the VSWR is, the more power is delivered to antenna. Minimum VSWR is 1, that means that no power is reflected from the antenna (ideal case). We recommend use Wi-Fi antennas with VSWR≤1.5 and 3G/LTE with VSWR≤2.5.

* '''VSWR (voltage standing wave ratio)''' is a function of the reflection coefficient Γ, that describes power reflected from the antenna. The smaller the VSWR is, the more power is delivered to antenna. Minimum VSWR is 1, that means that no power is reflected from the antenna (ideal case). We recommend use WiFi antennas with VSWR≤1.5 and 3G/LTE with VSWR≤2.5.

* '''Cable (insertion) losses''' must be taken into account when using antennas with long cables. It is a measure of the amount of energy that is absorbed by transmission line (cable) as signal travels down and it is measured in decibels (dB). In general, a smaller diameter cable has more loss than larger diameter cable. For a specific cable type (different cable types have different losses), the longer the cable length the greater the amount of energy it absorbs. Also, losses depend on frequency – the higher the frequency the greater the loss.

* '''Cable (insertion) losses''' must be taken into account when using antennas with long cables. It is a measure of the amount of energy that is absorbed by transmission line (cable) as signal travels down and it is measured in decibels (dB). In general, a smaller diameter cable has more loss than larger diameter cable. For a specific cable type (different cable types have different losses), the longer the cable length the greater the amount of energy it absorbs. Also, losses depend on frequency – the higher the frequency the greater the loss.

[[Category:RUT FAQ]]

[[Category:RUT FAQ]]