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The WiNRADiO WA-611 Antenna Distribution System features 3
antenna inputs and 6 receiver outputs, and consists of antenna matrix
switches, preamplifiers with an extremely high third order intercept point,
and a combination of suitable filters. Fully integrated to achieve the best
possible performance over a wide frequency range, these systems are
eminently suitable for government, defense, law enforcement and other
demanding high-end applications.
{Call Belinda for pricing 1-800-438-8155}
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The microprocessor-controlled unit can be operated
autonomously via a control panel, or remotely via an RS-232 link using
Windows-based PC-resident software with an easy-to-use graphical user
interface. These units can be used with any third-party equipment, and
are particularly suitable for WiNRADiO MS-8000-series Multichannel
Surveillance and Monitoring Systems, for which they provide
user-transparent, fully automatic antenna switching. |
The antenna inputs are configured as follows:
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Antenna 1 |
0.15 - 30 MHz |
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Antenna 2 |
30 -100 MHz |
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Antenna 3 |
100-1500 MHz |
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The frequency boundaries can be customized to meet
individual customer specifications. For each antenna input, an 18dB
switchable attenuator and a band-stop filter for broadcast frequencies
can be used. The attenuators and filters can be engaged for each antenna
independently, either directly via the front panel or remotely via the
serial port. |
The unit also contains the following user-switchable
filters, in addition to the fixed band preselector filters. These are used
to reject broadcast frequencies:
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Ant. 1 Filter |
0.515-1.610 MHz |
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Ant. 2 Filter |
88-108 MHz |
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Ant. 3 Filter |
88-108 MHz |
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The unit also contains power supplies for external
antenna preamplifiers (+12V is applied to the antenna leads). These
voltages are normally switched off by default, and can be selectively
enabled/disabled in remote operation mode.
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Front View
The front panel of the WA-611 unit is divided into a
keypad area and the status display. The keypad is used to enter the matrix
configuration (which receiver is connected to which antenna), to switch
on/off the attenuators and band-stop filters, and to enable/disable remote
control.
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Rear View
The antennas are connected using N-type connectors at the
rear of the unit. The receivers are connected via BNC connectors. Connecting
to the RS-232 serial port is done via a standard 9-pin connector. An
optional second RS-232 port may be installed by special requirement. (This
is usually used in high-reliability redundancy systems where the second
RS-232 port is connected to a back-up computer equipment.) |
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Remote Operation
In remote operation mode, the unit will accept commands
from the host computer and continue showing the current settings on the
front panel status display. The unit can be controlled and its status
interrogated via the serial interface, using a set of ASCII commands. For a
detailed explanation of the low-level control commands, click
here.
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Control Software
For easy control of the unit from a PC under Windows,
virtual control panel software is available, and supplied as part of the
package. This software has a self-explanatory graphical user interface which
makes it possible for the operator to observe what is happening inside the
unit:
Virtual control panel of WA-611
The status of the antenna matrix is observed in a grid of
antenna inputs and receiver outputs, and is easily changed by clicking on
the intersecting lines. The status of filters and attenuators is shown by
highlighting of the active attenuators or filters, and changed by simply
clicking on the corresponding function blocks. Note also that power for the
external antenna preamplifiers can be controlled from here, by clicking on
the associated power supply blocks. |
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Technical Specifications
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Configuration
3 inputs / 6 outputs
Fully non-blocking
Gain
0 dB typ (max. +5 dB, min. -1 dB)
Frequency range
0.15 MHz to 1500 MHz
Impedance
50 ohm (all inputs and outputs)
Max input level
+20 dBm for no damage |
Gain compression point
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Antenna Input |
Frequency |
1dB GPC |
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1 |
2 MHz
30 MHz |
15 dBm
15 dBm |
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2 |
31 MHz
99 MHz |
13 dBm
13 dBm |
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3 |
106 MHz
1471 MHz |
6 dBm
6 dBm |
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Active device third order intercept point (typical values)
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Antenna Input |
Frequency |
IP2 |
IP3 |
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1 |
2 MHz
30 MHz |
85 dBm
86 dBm |
49 dBm
50 dBm |
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2 |
31 MHz
99 MHz |
64 dBm
85 dBm |
45 dBm
45 dBm |
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3 |
106 MHz
1471 MHz |
53 dBm
56 dBm |
31 dBm
32 dBm |
Dynamic range (typical values)
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Antenna Input |
Frequency |
Dynamic range |
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1 |
2 MHz
30 MHz |
111 dB
112 dB |
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2 |
31 MHz
99 MHz |
107 dB
107 dB |
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3 |
106 MHz
1471 MHz |
97 dB
97 dB |
Output-to-output isolation
(typical values)
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Frequency |
Isolation |
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20 MHz |
87 dB |
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100 MHz |
75 dB |
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400 MHz |
67 dB |
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1490 MHz |
65 dB |
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Input-to-output isolation
(typical values)
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Frequency |
Isolation |
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20 MHz |
60dB |
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100 MHz |
46 dB |
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400 MHz |
37 dB |
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1490 MHz |
35 dB |
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Power : 120/240 VAC,
selectable
Dimensions : Width: 19" rack
Height: 3RU (5.25" = 133 mm)
Depth: 14.4"(365 mm)
Weight : 19.5 lb (8.8 kg)
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