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Card-mounted passive multicouplers
The fundamental function of a multicoupler is to allow the most efficient use of the available antennas, by connecting more radio receivers to the same antenna or
establishing the antennas-receivers configuration best suited to the operational requirements. As an additional advantage, the multicoupler gives opportunities to simplify the configuration of the receiving system through reduction of the RF cabling,
with positive results at both technical and cost-saving levels.
A set of Rx multicouplers operating over the VLF/LF/MF/HF frequency range, available in a configuration which allows flexible use and integration with other
system functions in existing hardware.
8-output multicoupler An
8-output passive Rx multicoupler covering the VLF-MF-HF (10kHz to 32MHz) frequency band. Incorporating new-generation magnetic materials which allow wideband operation with a low-ripple insertion loss ripple less than 1dB and a VSWR ≤1.5:1.
The multiplexing capabilities can be extended to 16 outputs by addition of a power divider and a circuit card.
Configured in a single 100mm x 86mm epoxy-glass card fitted with SMB input and output
connectors
Technical characteristics
Inputs |
1+1 |
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Outputs |
8+2 |
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Frequency range |
10 kHz to 32 MHz |
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Input/output impedance |
50 Ohm |
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In/out insertion loss 8-output splitter |
9,5 dB ± 0,5 dB ( 20 KHz to 32 MHz)
≤ 12 dB (10kHz to 20 kHz) |
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In/out insertion loss 2-output splitter |
3,2 dB ± 0,5 dB ( 20 KHz to 32 MHz)
≤ 4,5 dB (10kHz to 20 KHz) |
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VSWR |
≤ 1,3:1 (20 KHz to 32 MHz)
≤ 1,5 : 1 (10kHz to 20 KHz) |
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Decoupling between outputs |
≥ 25 dB ( 20 KHz to 32 MHz)
≥ 20 dB ( 10kHz to 20 KHz) |
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Maximum input signal power |
10 W CW |
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RF connectors |
“SMB” type for inputs 1 and 2
“SMB” type for the outputs
Total: 11 connectors |
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Size |
100mm x 86mm x 20mm card |
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Mounting |
qty 4 3,5 mm mounting holes |
5-output multicoupler
The same multiplexing structure, card-type, design characteristics and RF power handling (10W CW) of the 8-output version.
Internal dummy loads are provided for dissipation of the unbalance RF power
caused by impedance variations at the 5 outputs.
Technical characteristics
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Inputs |
1+1 |
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Outputs |
5+2 |
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Frequency range |
10 KHz ÷ 32 Mhz |
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Input/output impedance |
50 Ohm |
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In/out insertion loss 8-output splitter |
7 dB ± 0,5 dB ( 10 KHz to 32 MHz) |
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In/out insertion loss 2-output splitter |
3,2 dB ± 0,5 dB ( 10 KHz to 32 MHz) |
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VSWR |
≤ 1,3:1 (10 KHz to 32 MHz) |
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Decoupling between outputs |
≥ 30 dB |
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Maximum input signal power |
10 W CW |
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RF connectors |
“SMB” type for inputs 1 and 2
“SMB” type for the outputs
Total: 7 connectors |
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Size |
100mm x 86mm x 20mm card |
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Mounting |
qty 4 3,5 mm mounting holes |
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