Audio Wireless AC224 2-ZONE Diversity Antenna Combiner

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The Audio Wireless AC224 is the definitive choice for sound engineers who demand high-tier RF performance in a compact, rugged form factor. Designed to fit seamlessly into sound bags and equipment carts, this 2-zone antenna combiner and distribution system ensures your wireless microphones perform at their peak, no matter the location.

Expanded Coverage Without Compromise
The AC224 excels in versatility, functioning as a 2x2 IN and 2x4 OUT active system. It allows you to bridge two separate antenna zones to eliminate dead spots on large sets, or acts as a streamlined 2x1 IN distributor for portable bag setups. With support for up to four diversity receivers, it provides the rock-solid RF backbone your production requires.

Precision Engineering and Filtering
Signal integrity is at the heart of the AC224. Each antenna input features custom-tuned, low-loss band-pass filtering and a user-adjustable gain stage. This allows for precise calibration against interference, ensuring compatibility with all major digital and analog wireless systems. The high input signal handling and low noise floor deliver professional-grade transparency.

Smart Power Management
Simplify your workflow with the AC224’s integrated DC distribution. Beyond managing RF, it acts as a power hub with four independent Hirose outputs to feed your auxiliary gear. The vibrant TFT display and dedicated LED indicators provide instant feedback on system health, antenna power status, and LNA settings, all housed in a lightweight CNC-machined aluminum chassis built for the road.

Bandwith Range options:

• 470-608MHz
• 470-663MHz
• 470-700MHz
• 510-622MHz
• 470-960Mhz

 

RF Distribution Section
Frequency Range	470 to 1260MHz (in bands)
Input Impedance	50 Ω
Output Impedance	50 Ω
Gain*	+6dB to -10dB(nom.), user-adjustable in 1dB steps * 470-1164MHz and 470-1260MHz bands gain set at +2dB to -10dB(nom.), user-adjustable in 1dB steps
Current Consumption	300mA+/-20mA @ 12.0V dc (depends on display brightness setting)

 

UHF Bandpass Type
Available Bandwidths (to order)	470-1164MHz (Covers UK DME BAND), 470-960MHz, 470-608MHz, 470-700MHz, 470-663MHz, 470-865MHz, 510-622MHz, 960-1164MHz (UK DME BAND), 470-1260MHz (Covers Japan Band)
OIP3	> +41dBm
Port to port isolation	> 20dB (min.)
Noise figure	< 3dB

 

Connections
RF Inputs	4x50Ω Standard BNC Sockets
RF outputs	8x50Ω mini-UHF SMA sockets
DC Power IN	4-pin Push-Pull - Hirose Compatible socket, fused and protected against reverse polarity, 10-18V dc
DC Power OUTPUTS	4x4-pin Push-Pull - Hirose compatible sockets
DC IN pinouts	Pin 1+2 (-ve) and Pins 4+3 (+ve)
DC OUT pinouts	Pin 1+2 (-ve) and Pins 4+3 (+ve)

 

Powering
Operating voltage range	10-18V, input reverse power, and short circuit protected
Remote Antenna Powering	Switchable dc T-bias powering, 12Vdc @ 500mA max, regulated for active antenna powering, short circuit protected
Hirose dc output	Unregulated incoming volts, Menu driven - switched, protected against reverse polarity
Total Current Distribution	3A (max.)