Audio Wireless LDPA-A-WB Active Antenna
The Audio Wireless LPDA-A- WB (Log Periodic Dipole Array – Active Antenna) antenna is designed to operate over the 470-700MHz range consisting two sections: LPDA-P passive antenna section with in-built Band-Pass Filtering and an Active Antenna Booster.
The LPDA-A-WB may be used in an Active or Passive Mode to suit individual applications:
Active Mode with fixed Bandwidth in the 470-700MHz range with user adjustable gain of 18dB
Passive Mode (when there is no dc present) can be used as a High Gain Passive antenna to receive or to transmit with the in-built filtering 470-700MHz, passive gain boasting 5dB.
This unique design has an exceptionally low loss and a very selective Band-pass filter with fixed bandwidth between 470-700MHz. The booster section uses a digitally adjustable RF-Attenuator before the low noise RF Amplifier against RF overload and the Booster Gain adjust is after the RF amplification, both digitally adjustable RF-Attenuators are independently user adjustable in 1dB steps. The RF Amplifier is an extremely high dynamic range and Low Noise RF amplifier offering a linear gain within the tuning range.
The LPDA-A-WB offers flexibility as well as additional front-end protection against interfering dirty RF, the booster offers 18dB user adjustable gain to compensate long antenna extension cable losses hence increased distance between the transmitter and the receiver, LPDA-A-WB finds its application in film making, documentaries, fixed installations as in studios, and theatres. Compatible with any UHF wireless receiving systems (Digital or Analogue) providing a directional coverage pattern.
The antennae are constructed using advanced multi-layer PCB design technique with copper-clad epoxy fiberglass to withstand heavy duty use in harsh environments, providing long life and consistent performance under difficult operating conditions. The booster box is a custom-design machined aluminium, black anodized with water resistant O-ring mounting. Mounting is made easy with integrated thread that directly mounts on to a tripod or with the supplied adaptor it can be mounted directly on to a microphone stand. Powering is through coaxial cable, power source of 10-18Vdc.
Features:
- Active LPDA with 18dB gain
- Use as an Active, Passive Receive or Transmit
- No dc- Passive Mode with in-built Band-Pass filtering
- Extremely high dynamic range RF amplifier
- Input high selective Band Pass filter 470-700MHz
- Independently user adjustable Input Attenuator
- Independently user adjustable Booster Gain
- Intuitive OLED display menu
- Powered through coax cable
- Integrated mount adaptor
- CNC machined custom design
Technical spec:
Active mode:
Frequency Range: 470 to 700MHz with in-built Band Pass Filter
Booster Gain: +18dB (user adjustable in 1.0dB steps to unity)
Input Attenuator Range: -20dB (user adjustable in 1.0dB steps to unity)
OIP3: >+41dBm
Bandwidth: 24MHz
Selectivity: -38dB@420MHz and -30dB@750MHz min.
Passive mode:
Frequency Range: 470 to 700MHz with in-built Band Pass Filter
Passive Gain: +5dB with in-built band Pass Filter - 470-700MHz
Connections
RF output: 50 Ω Standard BNC-F
Mounting Options:
- 3/8”-16 standard tripod mount
- 5/8”-27 adaptor supplied
Powering
External Power: 10-18Vdc, through coaxial cable (Reverse power and short circuit protected)
Current consumption@12Vdc: 75mA +/- 10mA
Outer Case
Dimensions: 270x290x90mm Weight: 490g