Description
Sennheiser Active Antenna Splitter [ASA 1]
– Rack Mountable
– Linkable
– Connector Input: BNC x 8
– Output: BNC x 2 (RF Out)
– Frequency Range 500 to 870 MHz (-3 dB)
– Operating Voltage 13.8 VDC (with NT 1-1 mains unit)
– Current Consumption max 2.0 A with 4 receivers and 2 antenna boosters
– Supply Voltage Supply Voltage of Antenna Booster at ANT RF In A and ANT RF In B: 12 V 130 mA
– Supply Voltage of Receivers at A1 – A4: 12 V (protected from reverse feed), 350 mA
– Relative Humidity 5 to 95%
– Operating Temperature 14 to 131°F (-10 to +55°C)
– Storage Temperature -4 to 158°F (-20 to +70°C)
– Dimensions 8.35 x 6.61 x 1.69″ (212 x 168 x 43 mm)
– Weight 2.4 lb (1.09 kg)
Packaging Info
– Package Weight 4.2 lb
– Box Dimensions (LxWxH) 9.9 x 8.6 x 3.2″
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Sennheiser Active Antenna Splitter [ASA 1]
The ASA 1 active antenna splitter has been designed to enable routing of UHF antenna signals to several receivers in a multi-channel system. Up to four diversity receivers may be supplied with signal by only two antennas. The integral RF amplifiers ensure that the ASA 1 does not introduce any additional UHF signal loss.
Power Distribution & Efficiency
The ASA 1 incorporates DC distribution to enable simultaneous powering of up to four receivers and two antenna boosters via its BNC sockets. The antenna boosters may be required in order to compensate for cable losses due to long antenna cables.
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Note: A single NT 1-1 mains unit (to be ordered separately) is required to power the ASA 1, the connected receivers, and antenna boosters.
System Scalability
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8-Channel Support: By linking two ASA 1, an 8-channel diversity system can be operated with only two antennas.
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Rack Mountable: Using the GA 3 rack adapter, two ASA 1 or one ASA 1 and one stationary receiver (e.g., EM 100 G3, EM 300 G3, or EM 500 G3) can be mounted into a 19″ rack.
Areas of Application
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Multi-channel RF installations
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Permanent installations in small conference centres and similar venues
Sennheiser ASA 1 Specs
| Model | ASA 1 antenna splitter (2 x 1:4 or 1 x 1:8, active) |
| Included Accessories | Antenna cable 8 items, 50 cm, BNC |
| Frequency Range | ASA 1: 470 to 870 MHz (at -3 dB) |
| ASA 1-1G8: 1785 to 1805 MHz (at -3 dB) | |
| Amplification (Gain) | In A – Out A: 0 ± 1 dB |
| In A – Out A1 … A4: 0 ± 1 dB | |
| In B – Out B1 … B4: 0 ± 1 dB | |
| IIP3 | 20 dBm min. / 23 dBm typ. |
| Impedance | 50 $\Omega$ |
| Reflection Loss | 10 dB (all RF outputs) |
| Operating Voltage | 13.8 V DC (with NT 1-1 mains unit) |
| Current Consumption | ASA 1: 245 mA |
| ASA 1-1G8: 350 mA | |
| Total Current Consumption | Max. 2.0 A (with 4 receivers and 2 x 2 antenna boosters) |
| Booster Supply Voltage | 12 V, 130 mA (at ANT RF IN A and ANT RF IN B) |
| Receiver Supply Voltage | 12 V, 350 mA (at A1 to A4, protected from reverse feed) |
| Relative Humidity | 5 to 95% |
| Operating Temperature | -10°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Dimensions | Approx. 212 x 168 x 43 mm |
| Weight | Approx. 1,090 g |



