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AD224-P - 4-WAY Diversity Antenna Distribution System - Custom Tuned in bands (IN STOCK)
AD224-P is a custom design 4-way Antenna Distribution System for Diversity Receivers for portable sound bags.
Custom Tuned RF Filtering:
RF filtering rejects unwanted signals and only passes signals within the RF Bandpass filter bandwidth. Protects receivers from interference, ensuring reliable RF reception.
- One pair of antennae feeds up to four diversity receivers
- Built-in band-pass filtering and signal splitters
- Remote antenna powering
- 4 x Hirose DC outputs
- User-adjustable system gain +6dB to -10dB
- Industry standard connectors
- Intuitive TFT display menu and LED indicators
- Single power source solution
- Master ON-OFF switch
- Continuous system Voltmeter
- Soft ON/OFF switch for each individual Remote Antenna powering
- Soft ON/OFF switch for each Hirose DC output
- CNC-machined aluminium. This custom design, lightweight and rugged, fits neatly in any sound bag
The AD224-P is a 2-input and 8-output active antenna distribution system that features built-in high-selectivity, low-insertion-loss band-pass filters. This system eliminates the need for multiple receiver antennas and offers a neat solution for sound bags while enhancing RF performance. The advanced filter design effectively cleans up unwanted RF signals within the selected bandwidth before they reach the diversity receivers. This is crucial in a crowded radio frequency spectrum, as it protects the receivers from interference.
The AD224-P is a custom-designed Antenna Distribution (AD) system that provides solutions for antenna and DC power distribution needs in portable sound bag applications. It is designed for scenarios where weight and size are crucial, without compromising performance.
The antenna inputs utilise BNC connectors for standard low-loss RF coaxial extension cables, while the outputs consist of mini-RF SMA connectors that feed the diversity receivers.
In applications where remote antenna powering is necessary, the AD features switchable Active Antenna Powering with red LEDs indicating the power ON/OFF status. The Active Antenna Powering can be activated or deactivated through the high-visibility, large-display menu.
The AD224-P can handle high input signals with minimal noise and offers excellent inter-modulation performance compared to other low-power devices.
The tuning bandwidth is specifically designed with a semi-broadband response to accommodate various applications. The system's RF gain can be adjusted by the user in 1dB increments, ranging from +6dB to -10dB. Additionally, the AD224-P is compatible with industry-standard full-digital, digital-hybrid, and analogue radio microphone receivers.
The device is powered externally with a voltage range of 10-18V DC. It features an industry-standard 4-pin Hirose connector for DC input, along with four Hirose DC output connectors for powering auxiliary equipment. Each DC output port can be individually turned ON or OFF using the display menu. Additionally, the built-in voltmeter continuously shows the status of the DC input voltage.
Audio Wireless Antenna Distribution (AD), Antenna Combiners (AC), high-gain LPDA antennas and the transmitter booster modules are the top choice for freelance sound engineers, hiring companies, and major broadcasters for all wireless microphone applications.
| RF Distribution Section | |
| Frequency Range | 470 to 1164MHz in bands |
| Input Impedance | 50 Ω |
| Output Impedance | 50 Ω |
| Gain (each output) | +6 dB to -10dB, user-adjustable |
| Current Consumption | 180mA @12.0V dc |
| UHF Bandpass Type | |
| Available Bandwidths (to order) |
470-608MHz, 470-700MHz, 470-960MHz, 470-1164MHz (Covers UK DME BAND) |
| OIP3 | > +41dBm |
| Port-to-port isolation | > 20dB (min.) |
| Noise figure | < 3 dB |
| Connections | |
| RF Inputs | 2 x 50 Ω Standard BNC Sockets |
| RF outputs | 8 x 50 Ω mini UHF SMA sockets |
| DC Power IN | 4-pin Hirose (compatible) sockets are individually fused and protected against reverse polarity |
| DC Power Distribution DC OUT |
4 x 4-pin Hirose (compatible) sockets individually fused and protected against reverse polarity |
| ON/OFF Switch | SET push button doubles for ON/OFF and SET |
| DC IN pinouts | Pin1+2(-ve) and Pin4+3(+ve) |
| DC OUT pinouts | Pin1(-ve) and Pin4(+ve) |
| Powering | |
| Operating Voltage Range | 10-18V dc |
| Active Antenna Powering | Individually switchable DC T-bias powering, at operating voltage, 250mA maximum for active antenna powering, fused (short circuit protected) and protected against reverse polarity. |
| Hirose DC output | Unregulated incoming volts are switched, individually fused, and protected against reverse polarity. |
| Total Current Distribution | 3A (max.) |
| Outer Case | |
| Dimensions | 163x67x36mm (L x W x H) |
| Weight | 380g |
| Supplied RF Link Cables | 8 x SMA-RA to SMA-RA - 40cm |
25.05.2026