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DUAL-BAND LPDA ANTENNA LPDA-A-DB
Dual-band filtering is a unique, advanced design that only allows the desired signals within the selected filter to pass. This capability provides a wider operating frequency range and protects the receivers from interfering signals and unwanted RF noise, thus maintaining robust RF reception.
This Dual-Band LPDA active antenna is custom-designed for the UK and Japanese frequency ranges, covering the lower and upper UHF bands.
KEY FEATURES:
- Active Dual-Band LPDA with 20dB gain
- UK Dual-Band: 470-700MHz and 960-1164MHz
- Japanese Dual-Bands: 470-714MHz/806-810MHz and 470-714MHz/1240-1260MHz
- Selectable 3-Mode operation
- May be used as an Active, Passive Receive or Transmit
- No DC- Passive Mode with ultra-wide band 470-1260MHz
- Extremely high dynamic range RF amplifiers
- Input high-selective Band Pass filtering
- User-adjustable Booster Gain in 1dB steps
- Intuitive OLED display menu
- Powered through coax cable
- Integrated mount adaptor
- CNC-machined custom design
The Dual-Band Active Log Periodic Dipole Array (LPDA-A-DB) antenna is designed to operate within the frequency range of 470-1260 MHz. It consists of two sections: the passive LPDA-P antenna and an active dual-band band-pass filter antenna booster. The user can select front-end filtering, which determines the operating frequency range of the LPDA-A-DB.
The Dual-Band - LPDA-A-DB may be used in Active or Passive Mode to suit individual applications:
Active Mode (when powered through the coax cable)
MODE 1: User selectable Lower UHF Band ONLY
MODE 2: User selectable Upper UHF Band ONLY
MODE 3: Both “Band-Pass Filters” are ON (active) at the same time (excellent “Band Rejection” between Lower and Upper Bands)
Passive Mode (when there is no DC present) can be used as a High Gain Passive
antenna to receive or to transmit with passive 5dB Gain
This unique design features an exceptionally low loss and highly selective front-end band-pass filters. These filters have fixed bandwidths between 470-700 MHz and 960-1164 MHz, specifically for the UK DME Band. The RF amplifiers provide a high dynamic range, very low noise, and linear gain throughout the tuning range.
The LPDA-A-DB offers flexibility and enhanced front-end protection against interfering RF signals. It features a user-adjustable gain of 20 dB to compensate for losses in long antenna extension cables, allowing for increased distances between the transmitter and receiver. The LPDA-A-DB is suitable for applications in filmmaking, documentaries, and permanent installations such as studios and theatres. It is compatible with any UHF wireless receiving system—be it digital, digital hybrid, or analogue—and it provides a directional coverage pattern.
Specifications
Active Mode |
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|---|---|---|
| Frequency Range | 470-1260MHz (in Dual-Band Pass Filters) Available frequency ranges: 470-700MHz/960-1164MHz (UK DME Band) 470-714MHz/806-810MHz (Japan) 470-714MHz/1240-1260MHz (Japan) |
|
| Booster Gain | +20dB (user adjustable in 1.0dB steps to unity) | |
| Input Attenuator Range | -20dB (user adjustable in 1.0dB steps to unity) | |
| Selectivity curves for 470-700MHz 960-1164MHz |
-38dB@420MHz and -30dB@750MHz min. -38dB@750MHz and -30dB@1450MHz
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| OIP3 | >+41dBm | |
Passive Mode (no dc) |
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| Frequency Range | 470 to 1260MHz (depending on the range) | |
| Passive Gain | +5dB to +2dB – 470-1260MHz model | |
Connections |
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| RF output | 50 Ω Standard BNC-F | |
| Mounting Options | 3/8”-16 standard tripod mount 5/8”-27 adapter supplied |
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Powering |
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| External Power | 10-18Vdc, through coaxial cable (reverse power and short circuit protected) |
|
| Current consumption@12Vdc | 200mA +/- 20mA (max.) | |
Outer Case |
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| Dimensions | 270x290x90mm | |
| Weight | 490g |
25.05.2026