The CPAA-18 Active Antenna is designed with circular polarization for much better performance (compared to traditional linear polarization) in situations where the transmitter is out of line-of-sight or transmitter antenna orientation needs to be flexible. The built-in high-quality, extremely low noise amplifier with -9 to 18 dB adjustable gain is ideal for compensating the high attenuation of long cables or weak signal strength.
Circular Polatization BenefitsA receiver antenna with circular polarization is able to orient independent of the orientation of the transmitter antenna. When antennas are not aligned in traditional linear polarized systems, there is significant link performance degradation, which can lead to link losses and dropouts. Circular polarization also improves link performance in adverse weather conditions and heavily-obstructed environments.
Ultra low noise on-board amplifier with gain from - 9 dB to + 18 dBThe built-in ultra low noise amplifier allows antenna usage in situations with variable coaxial cable length between antenna to receiver device. The higher attenuation of longer cables can be easily compensated by increasing gain, while zero or negative gain can be applied in scenarios with very short cables and strong receiving signal, so as to not to overshoot input dynamic range of the receiver.
Amplifier can be easily adjusted to any value between - 9 and + 18 dB in the step of 1 dB and persists through a power cycle.
Excellent RF parametersA Voltage Standing Wave Ratio of less than 1.2 ensures great signal power reception., the very high third-order Intercept Point IP3 >34 dBm provides great linearity, and the industry-leading ultra low noise amplifier IC has a noise figure of only 0.75 dB.
High efficiency input filters for removing unwanted RF spectrumThe CPAA-18's high-efficiency input filters help to prevent receiver intermodulation with other sources in bands outside of the main working range of wireless systems, so you can work wihout dropouts in companionable proximity to walkie talkies, FM radios, wireless focus systems, WiFi and bluetooth devices, mobile phones, etc.
Adjustable LEDThe seven segment LED display diisplay can autromatically adjusts its brightness according to ambient light conditions for excellent readibilty in the dark or the direct sun. If preferred, the brightness can be adjusted manually.
Top build qualityThe amplifier is made of CNC milled aluminum alloy and is sealed for water-resistance. Four M4 screw holes with 100mm pitch are included for permanent mounting.
PoweringThe CPAA-18 antenna can be powered externally through coaxial cable from a 5 - 20 V DC power source.
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