What is SMA antenna?
What is SMA antenna?
SMA and RP-SMA are standard threaded antenna connectors for high frequency applications from 1 GHz to approx. 16 Ghz. They are most commonly used in microwave systems, such as portable radio and mobile phone antennas, but also with WiFi antenna systems.
How far can 900mhz travel?
The lower frequency radio waves of 900 MHz radios provide greater penetration through walls, trees and other obstacles, making it optimal for most non-line-of-sight applications. A typical AW900xTR Radio using high powered AW-15 15dbi antenna can go distances of up to 1500 feet with buildings and/or trees in the way.
Is RP-SMA the same as SMA?
RP-SMA stands for “reverse polarity” (sometimes also referred to as reverse SMA or for short “R-SMA”). The RP-SMA female socket has a barrel with external threads and a centre pin. When they are plugged, the two are indistinguishable and the signal quality is the same.
What’s the difference between SMA and RP-SMA?
Standard SMA connectors are commonly used on Cellular 3G 4G LTE devices. RPSMA is normally reserved for 802.11 WiFi or WLAN devices. 99% of the time, your device will have the “female” connector, and you’ll need a “male” connector on your cable.
Does 2.4 GHz need line of sight?
Both frequencies need “line-of-sight” for proper and predictable operation. However some type of obstructions are more detrimental to a 2.4 GHz link. Trees with leaves that have dimensions near the wavelength of 2.4 GHz (but typically shorter than the wavelength of 900 MHz), will cause higher attenuation at 2.4 GHz.
Does 900MHz affect 2.4 GHz?
Also, if you are considering extending the antenna location via coax cable, 900MHz systems do allow over two times the cable length of 2.4GHz systems.
Will a 2.4 GHz antenna work for 900mhz?
1 Answer. The wavelength, and hence the antenna design for 2.4 GHz is ~12.5 cm, but the wavelength for 900 MHz is ~33 cm. There would be a number of issues, including poor impedance match and decreased radiation efficiency, with an unknown radiation pattern.
Is SMA same as coax?
The SMA is coaxial, with the characteristic screw-type coupler; however, these should not be confused with standard coaxial hooking up a home’s cable or internet. To hook up an SMA to a coax requires a special adapter.
