BETSO CPAA-18
by BetsoThe CPAA-18 is the flagship of receiver antennas because of its enhanced receiving performance.
Circular polarization, compared to traditional linear polarization, has much better performance in non-line-of-sight situations and mainly in situations, where transmitter antenna can be randomly oriented in the horizontal or vertical position.
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Package includes
1 x BETSO CPAA-18
Circular polarization, compared to traditional linear polarization, has much better performance in non-line-of-sight situations and mainly in situations, where transmitter antenna can be randomly oriented in the horizontal or vertical position.
Additionally the inbuilt, high quality, extremely low noise amplifier, is ideal for situations where long cables with high attenuation have to be compensated or where signal strength is too weak.
The main advantage of the receiver antenna with circular polarization is its orientation independence which is independent of the orientation of the transmitter antenna.
In traditional linear polarized systems, when antennas are not aligned, there is a significant link performance degradation, which can lead to link losses -> dropouts. On the other hand when the receiver antenna with circular polarization is used, this problem almost does not exist.
Inbuilt ultra low noise amplifier allows antena usage in the situations with variable coaxial cable length from antena to receiver device. Higher attenuation of longer cables can be easily compensated by increasing gain, while in the situations with very short cables and strong receiving signal zero or even negative gain assures not to overshoot input dynamic range of the receiver.
Amplifier can be easily adjusted to any value betwen - 9 and + 18 dB in the steps of 1 dB.
Voltage Standing Wave Ratio of less than 1.2 ensures great signal power reception. Very high Third-order Intercept Point IP3 >34 dBm providing great linearity and finally industry leading ultra low noise amplifier IC with noise figure 0.75 dB.
Main disadvantage of circular polarized antennas - their size is minimized in BETSO CPAA-18 by professional RF design with focus on dimensions, weight and reception performance. The result is great performing active antena packed in very reasonable sized case reinforced by high quality materials and manufacturing processes.
Amplifier is made of CNC milled aluminium alloy and is sealed for great water resistant performance.
Permanent mounting is possible by standard 4x M4 screw holes with 100mm pitch.
Frequency range: 470 MHz to 850 MHz
Input filters attenuation: High below 450 MHz (for example -82dB @ 100 MHz), High above 870 MHz (for example -35dB @ 2.4 GHz)
Antenna gain: 7.5 dB of avarage gain (peak 8.5 dB)
Antenna directivity: Cardioid
Antenna polarization: Circular
Amplifier gain: -9 to 18 dB
Amplifier IC noise: Ultra low noise < 0.75 dB
Antenna VSWR: Excellent < 1.2 (max. 0.8% of received signal power is reflected)
Amplifier IP3: Very high > 34 dBm
Display: Bright blue LED with automatic or manual brightness settings and stand-by mode
Powering: External powering 5 - 20 V DC
Current consumption: 35 mA
Mechanic construction: CNC milled, anodized aluminium alloy and ABS highly durable plastic
Mounting: 1/4" and 3/8" threads
Dimensions (h x w x d): 315 x 315 x 110 mm
Weight: approx. 1.4 kg
Advanced features
Gain setting: Easy gain setting with automatic last set gain storing
Ambient light sensor: Brightness of LED display can be automatically adjusted according to ambient light
Manual brightness setting: Brightness of LED display can be also set manually to requested level
Dispaly stand-by mode: Display can be completely turned off with ability to show preset gain value upon button request