Electronics for Radio Surveillance & Monitoring - SIGINT/COMINT
Military - Government - Commercial
The fundamental application of the receiver multicoupler is to enable multiple radio receivers, spectrum analyzers or scanners, to share a common antenna system. The advantage of using a multicoupler in signal monitoring applications were several receivers are used (such as in SIGINT/COMINT), is in the port-to-port isolation of the coupler.
Isolation will reduce the possibility of RF interaction between receivers caused by local oscillators, synthesizers, etc. If an external pre-amplifier, receive filter or lightning protection device is used, only one is needed to service several receivers.
Both Passive and Active broad-band models as well as narrow-band specialty couplers are manufactured with premier components to meet a multitude of VLF to UHF monitoring applications. Standard port configurations from 2 up to 16 are available. These units are designed to meet most government, military and commercial radio monitoring demands. Active models include broad-band low-noise amplifiers, front-end protection, and, depending on model, input High-Pass or Low-Pass Filters.
General Information -Receiver Multicouplers
HF Receiver Multicoupler - 500 kHz to 50 Mhz - 4-ports
MCA104M and MCA104MIL are active multicouplers designed to distribute HF antenna signals to four receivers without loss and with high isolation between ports. It is specifically suited for signal intercept and HF monitoring stations, both fixed or mobile platforms. It can be used in any HF monitoring post using receivers, scanners or spectrum analyzers.
MCA104M/MCA104MIL has a mechanical and electrical design construction that will meet any government, military or commercial specification. This unit is designed to give high performance results in any radio monitoring post using multiple intercept receivers. Rugged die-cast aluminum enclosure with a black powder coat finish is standard, olive drab green (MIl-841OD) is also available on request.
MCA104MIL is a special version with an integrated RF power limiter front-end, designed specifically to operate safely in very high RF environments, such as military mobile installation, or when transmit antennas are in close proximity to receive antenna.
It also offers increased ESD protection. Conformal coating standard.
Options:
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors
(4): N-connector on input port, BNC connectors on outputs (MCA104M/N)
Please contact us for options 1 and 2
Purchase MCA104M, MCA`04MIL and MCA102M below
HF Receiver Multicoupler - 500 kHz to 50 Mhz - 8-ports
MCA108M is an active multicoupler designed to distribute HF antenna signals to eight (8) receivers without loss and with high isolation between ports. It is specifically suited for signal intercept and HF monitoring stations, both fixed or mobile platforms. It can be used in any HF monitoring post using receivers, scanners or spectrum analyzers.
MCA108M has a mechanical and electrical design construction that will meet any government, military or commercial specification. This unit is designed to give high performance results in any radio monitoring post using multiple intercept receivers. Rugged die-cast aluminum enclosure with a black powder coat finish is standard, olive drab green (MIl-841OD) is also available on request.
Options:
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors
(4): N-connector on input port, BNC connectors on outputs (MCA108M/N)
Please contact us for options 1 and 2
Frequency Range: 500 kHz to 50 MHz. 4-Ports
Nominal Impedance: 50 ohm
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
P1dB = 17 dBm (output) 3OIP = 32 dBm (output
Coupler Gain/Loss: +2 dB to -1 dB (max) over frequency range
RF Connectors: BNC (standard)
Mechanical: 4.375 X 2.375 X 1.250 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
DC Power Connector: 2.1/5.5mm coaxial (standard)
DC Power Requirements: +12VDC (nominal) @ 85 mA
Frequency Range: 500 kHz to 50 MHz. 8-Ports
Nominal Impedance: 50 ohm
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
P1dB = 17 dBm (output) 3OIP = 32 dBm (output
Coupler Gain/Loss: +2 dB to -1 dB (max) over frequency range
RF Connectors: BNC (standard)
Mechanical: 4.75 X 3.75 X 1.50 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
DC Power Connector: 2.1/5.5mm coaxial (standard)
DC Power Requirements: +12VDC (nominal) @ 85 mA
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 4-ports
MCA204M and MCA104MIL are active multicouplers designed to distribute VHF/UHF antenna signals to four (4) receivers without loss and with high isolation between ports. It is specifically suited for signal intercept and VHF/UHF monitoring stations, both fixed or mobile platforms. It can be used in any monitoring post using receivers, scanners or spectrum analyzers.
MCA204M and MCA204MIL has a mechanical and electrical design construction that will meet any government, military or commercial specification. This unit is designed to give high performance results in any radio monitoring post using multiple intercept receivers. Rugged die-cast aluminum enclosure with a black powder coat finish is standard, olive drab green (MIl-841OD) is also available on request.
MCA204MIL is a special version with an integrated RF power limiter front-end, designed specifically to operate safely in very high RF environment, such as military mobile installation, or when transmit antennas are in close proximity to receive antenna. It also offers increased ESD protection. Conformal coating standard.
Options:
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors
(4): N-connector on input port, BNC connectors on outputs (MCA204M/N)
Please contact us for options 1 and 2
Purchase MCA204M, MCA204MIL or MCA202M below
Frequency Range: 25 MHz to 1 GHz 4-Ports
Nominal Impedance: 50 ohm
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
P1dB = 17 dBm (output) 3OIP = 32 dBm (output
Coupler Gain/Loss: +2 dB to -1 dB (max) over frequency range
RF Connectors: BNC (standard)
Mechanical: 4.375 X 2.375 X 1.250 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
DC Power Connector: 2.1/5.5mm coaxial (standard)
DC ower Requirements: +12VDC (nominal) @ 85 mA
Specifications: MCA204M, MCA204MIL and MCA202M
NATO/NSN number: 5865-01-532-0314
If only two (2) outputs are needed the model MCA202M is available. This unit have equivalent electrical and mechanical specifications as the MCA204M.
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 8-ports
MCA208M is an active multicoupler designed to distribute VHF/UHF antenna signals to eight (8) receivers without loss and with high isolation between ports. It is specifically suited for signal intercept and VHF/UHF monitoring stations, both fixed or mobile platforms. It can be used in any monitoring post using receivers, scanners or spectrum analyzers.
MCA208M has a mechanical and electrical design construction that will meet any government, military or commercial specification. This unit is designed to give high performance results in any radio monitoring post using multiple intercept receivers. Rugged die-cast aluminum enclosure with a black powder coat finish is standard, olive drab green (MIl-841OD) is also available on request.
Options:
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors
(4): N-connector on input port, BNC connectors on outputs (MCA108M/N)
Please contact us for options 1 and 2
Frequency Range: 25 MHz to 1 GHz. 8-Ports
Nominal Impedance: 50 ohm
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
P1dB = 17 dBm (output) 3OIP = 32 dBm (output
Coupler Gain/Loss: +2 dB to -1 dB (max) over frequency range
RF Connectors: BNC (standard)
Mechanical: 4.75 X 3.75 X 1.50 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
DC Power Connector: 2.1/5.5mm coaxial (standard)
DC Power Requirements: +12VDC (nominal) @ 85 mA
NATO/NSN number: 5895-01-532-0314
700 Mhz/800 MHz Receiver Multicoupler
MCA780 M is an active multicoupler designed to distribute UHF antenna signals in the 700/800 MHz service band to four (4) receivers without loss and with high isolation between ports. It is specifically suited for signal intercept and 700/800 MHz monitoring stations, both fixed or mobile platforms. It can be used in any monitoring post using receivers, scanners or spectrum analyzers.
MCA780M has a mechanical and electrical design construction that will meet any government, military or commercial specification. This unit is designed to give high performance results in any radio monitoring post using multiple intercept receivers. Rugged die-cast aluminum enclosure with a black powder coat finish is standard, olive drab green (MIl-841OD) is also available on request.
Options:
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors
(4): N-connector on input port, BNC connectors on outputs (MCA780M/N )
Please contact us for options 1 and 2
Frequency Range: 730 MHz to 870 Mhz (-3 dB bandwidth)
Gain: +4 dB nominal
Impedance: 50 Ohms
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
P1dB = 14 dBm (output) 3OIP = 27 dBm (output
Noise Figure: 3.5 dB nominal (50 ohm terminated)
RF Connectors: BNC (standard), N type input, TNC
Mechanical: 4.375 X 2.375 X 1.250 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
DC Power Connector: 2.1/5.5mm coaxial (standard)
DC Power Requirements: +12VDC (nominal) @ 85 mA
HF to UHF - 2 and 4 ports (signal splitter/combiner)
The basic application of the passive multicoupler is to split a signal, in-phase, to the outputs. It can also act as a signal combiner with the ability to combine two or more signals, in-phase, to a common output generally called the “Sum” port. This feature is very useful in combining antenna signals for a receiving system, or, for laboratory use in combining RF signals for measurement and study. Because of the “passive” design they do not need power to operate.
Our passive multicouplers are designed to operate to specifications in a 50 ohm system and all are compatible with any of the “active” multicouplers on this page. For example, a two port splitter such as the MC202 may be connected to two (2) MCA208M VHF/UHF couplers for a total of 16 ports, etc.
Please consult the table below for the model that best covers your intended frequency use range. Although they have substantial frequency overlap, the upper and lower frequency limits may be of importance.
Options:
(1): PCB Conformal coating for high humidity installations.
(2): TNC connectors.
Please contact us for these options
Nominal Impedance: 50 ohm
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
Phase (input/Output): 0 degrees
Insertion Loss (Total): 2-Port = 4 dB, 4-port = 7 dB (+ 0 / -1,5 dB)
RF Connectors: BNC standard, TNC optional
Mechanical: 4.75 X 3.75 X 1.50 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
OD Green optional
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Model
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Ports
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Frequency Range
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Con.
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Price
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MC102
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2
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100 kHz to 500 MHz
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BNC
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$75.00
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MC104
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4
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100 kHz to 500 MHz
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BNC
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$98.00
|
|
MC202
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2
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10 MHz to 1 GHz
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BNC
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$75.00
|
|
MC204
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4
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10 MHz to 1 GHz
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BNC
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$98.00
|
Purchase passive couplers below
VLF/LF Receiver Multicoupler - 4-ports, 10kHz to 500 kHz
10 kHz to 500 kHz Frequency range
High Port-to-Port Isolation, >35 dB
OP1dB = 14 dBm OP3dB = 27 dBm
No Signal Loss to Output Ports
Rugged Cast Aluminum Case
Sonar, Ultrasonic and VLF/LF Signal Intercept, R&D
MCA04VLF is a 4-port active VLF/LF multicoupler designed to distribute an input signal (antenna, transducer or other signal source) to four output ports for connection to receivers, spectrum analyzer or other test equipment. Premium low frequency components have been used in the design of this device resulting in superior frequency response with full electrical specifications down to 10 kHz. Mechanically the MCA04VLF it is very rugged and meet MIL STD-810 environmental operations.
MCA04VLF ships complete with a regulated power supply for the North American market. Outside United States and Canada, a 6 foot DC cord is supplied for connection to customers power source. A well regulated +12 volt power supply is required, current drain is approximately 85 mA.
Options:
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors
(4): N-connector on input port, BNC connectors on outputs (MCA04VLF/N)
(5): Olive Drab (Green MIL-1822) baked enamel coating.
Please contact factory for data sheet or additional technical information.
Note: Coaxial interconnect cables are available from accessories page
RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
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Stridsberg Engineering, LLC. - Shreveport, Louisiana, USA - (318) 861-0660
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 16-ports. Signal Distribution Module
Frequency Range: 25 MHz to 1 GHz. 16-Ports
Nominal Impedance: 50 ohm
Port-To-Port isolation (min): 22 dB
Return Loss (all ports): > 20 dB
P1dB = 17 dBm (output) 3OIP = 32 dBm (output
Coupler Gain/Loss: +2 dB to -1 dB (max) over frequency range
RF Connectors: N (input) BNC (outputs)
Mechanical: 8.50 X 5.75 X 1.50 inches (L.W.H)
Case: Die cast Aluminum, Black powder coating (standard)
DC Power Connector: 2.1/5.5mm coaxial (standard)
DC Power Requirements: +12VDC (nominal) @ 150 mA
MCA216M is an active multicoupler designed to distribute VHF/UHF antenna signals to sixteen (16) VHF/UHF receivers simultaneously without loss of signal level and with high isolation between ports to minimize interaction between output devices. It is specifically suited for larger signal intercept and VHF/UHF monitoring stations, both fixed or mobile platforms. It can be used in any monitoring post using receivers, scanners or spectrum analyzers.
MCA216M has a mechanical and electrical design construction that will meet any government, military or commercial specification. A very robust circuit design with premium components and a RF Power limited front-end with dual amplifier stages. This design provide additional protection from very strong RF levels from nearby transmitters, or in cases where transmit and receive antennas are located in close proximity to each other. It also provide protection from electrostatic discharge (ESD) introduced on to the antenna system originating from wind driven ESD build-up and to those ESD from nearby lightning storms.Additional circuitry balance output levels to each port within 1 dB This unit is designed to give high performance results in any radio monitoring post using multiple intercept receivers. Rugged die-cast aluminum enclosure with a black powder coat finish is standard, olive drab green (MIl-841OD) is also available on request.
MCA216M Input Protection Range
Availability
We keep a limited inventory, but generally they are built to order. Lead-time is less than 1 week for quantites up to 5 units
Included with MCA216M
Regulated power supply, +12VDC 500 mA
Additional DC power cord
N to BNC adapter
Options
(1): EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2): PCB Conformal coating for high humidity installations.
(3): TNC connectors (outputs only)
NATO/NSN number: 5866-01-532-0314
If only two (2) outputs are needed the model MCA102M is available. This unit have equivalent electrical and mechanical specifications as the MCA104M and in the same case style