Active Antenna

Product

The SHARKIE is a compact, wideband UHF, active receiver antenna with Log Periodic Dipole Array (LPDA) structure and cardioid directivity. It's extremely low noise amplifier with easy gain setting

is ideal for variable coaxial cable length attenuation compensation in the field. Rock solid mechanical construction guarantees careless functionality both in indoor and outdoor locations.

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 step of 1 dB.

What is unique about SHARKIE is its excellent RF parameters.

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.

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

Specs

• 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 8 dB of avarage gain (peak 9 dB)
• Antenna directivity Cardioid
• Antenna polarization Linear
• 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 (depends on the operating mode of the LED display)
• Mechanic construction CNC milled, anodized aluminium alloy and glass-reinforced epoxy laminate
• Mounting 1/4" and 3/8" threads
• Dimensions (h x w x d) 275 x 350 x 21 mm
• Weight approx. 320 g (0.7 lb.)