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| Module |
Bottom frequency |
Top frequency |
| HF |
0.4 MHz |
30 MHz |
| VHF |
30 MHz |
300 MHz |
| UHF |
300 MHz |
1.8 GHz |
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The antenna inputs can be customized and configured according to the user request by using HF, VHF and UHF modules for frequency ranges shown in the adjacent table.
The unit also contains convenient power supplies for external antenna preamplifiers (12 V current-limited DC voltage source is internally applied to the antenna inputs).
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Front Panel
The WA-0831 front panel contains 4 x 8 LED-illuminated matrix switch buttons, a remote enable button and the power switch.
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Rear Panel
The four antenna inputs use N-type connectors located at the rear of the device. The eight outputs are connected to the receivers using SMA connectors.
A connection to the USB port is via a standard USB-B connector and the LAN network interface is via an RJ45 connector.
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| WA-0831 Software
When used with the WiNRADiO MS-8118/G3 Multichannel Surveillance and Monitoring System, the WA-0831 software integrates seamlessly with the system.
When used stand-alone, or in conjunction with third-party receiver systems, the WA-0831 unit can be controlled either manually using the operator control panel, or remotely via a supplied software application.
Programmers' SDK API is also available, to facilitate OEM integration and third-party application development.
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| How to Order
The WA-0831 is factory-configurable for any combination of the four antenna inputs, which can be either HF, VHF or UHF. For example, a WA-0831 unit can have four HF inputs, or four VHF inputs, or one HF plus one VHF plus two UHF inputs, etc.
The order code is in the form of WA-0831/nT-nT-.. where n is the number of inputs of a particular input model type T. There are three possible types:
| Module |
Type Code |
Bottom frequency |
Top frequency |
| HF |
H |
0.4 MHz |
30 MHz |
| VHF |
V |
30 MHz |
300 MHz |
| UHF |
U |
300 MHz |
1.8 GHz |
All combinations are possible, as long as the total number of inputs is four. Here are a few common configuration examples:
| Product Code |
Description |
| WA-0831/4H |
4 x HF (0.4-30 MHz) inputs |
| WA-0831/4V |
4 x VHF (30-300 MHz) inputs |
| WA-0831/4U |
4 x UHF (300-1800 MHz) inputs |
| WA-0831/2H-V-U |
2 x HF (0.4-30 MHz), 1 x VHF (30-300 MHz), 1 x UHF (300-1800 MHz) inputs |
| WA-0831/H-2V-U |
1 x HF (0.4-30 MHz), 2 x VHF (30-300 MHz), 1 x UHF (300-1800 MHz) inputs |
| WA-0831/H-V-2U |
1 x HF (0.4-30 MHz), 1 x VHF (30-300 MHz), 2 x UHF (300-1800 MHz) inputs |
| WA-0831/2V-2U |
2 x VHF (30-300 MHz), 2 x UHF (300-1800 MHz) inputs |
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| Technical Specifications |
| Configuration |
4 inputs / 8 outputs
Non-blocking |
| RF Connectors |
4 x input (N-female)
8 x output (SMA-female) |
| Gain |
| HF and VHF inputs |
-2 dB (± 3 dB) |
| UHF input |
-2 dB (± 4 dB) |
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| NF |
| HF input |
12 dB |
| VHF and UHF inputs |
8 dB |
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| Frequency range |
Depends on input module configuration.
(0.4 MHz to 1.8 GHz when using all HF, VHF and UHF input modules.) |
| Impedance |
50 ohm (all inputs and outputs) |
| Max. input level for no damage |
| HF and VHF inputs |
+22 dBm |
| UHF input |
+17 dBm |
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| IIP1 |
| HF input |
+13 dBm @ 14 MHz |
| VHF input |
+20 dBm @ 150 MHz |
| UHF input |
+8 dBm @ 1000 MHz |
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| IIP3 |
| HF input |
+27 dBm @ 14 MHz |
| VHF input |
+33 dBm @ 150 MHz |
| UHF input |
+23 dBm @ 1000 MHz |
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| Output-to-output isolation |
-109 dB @ 10 MHz
-88 dB @ 100 MHz
-74 dB @ 400 MHz
-68 dB @ 1500 MHz |
| Input-to-output isolation |
-60 dB @ 10 MHz
-44 dB @ 100 MHz
-46 dB @ 400 MHz
-48 dB @ 1500 MHz |
| Power supply for active antennas |
12 V DC (max 0.4 A) on antenna inputs of HF, VHF and UHF modules |
| Remote control interfaces |
USB 1.1/2.0 (USB-B connector)
LAN interface for TCP/IP networks (RJ45 connector) |
| Power |
120/240 VAC, 50 Hz, selectable
8–15 W (according to configuration) |
| Dimensions |
Width: 19" rack
Height: 3RU (5.25" = 133 mm)
Depth: 14.4"(365 mm) |
| Weight |
Approx. 19.5 lb (8.8 kg)
(according to configuration) |
Note:
1. All values are typical.
2. Specifications are subject to change without notice due to continuous product development and improvement.
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