STRIDSBERG ENGINEERING, LLC
Raven Signals

Shreveport - Louisiana - USA
Military - Government - Commercial

          

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Receiver Multicouplers - VLF, LF, HF, VHF & UHF

RADIO INTERCEPT & SURVEILLANCE, SIGINT-COMINT,  SWL & SCANNING


Multicouplers - General Description
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 8 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.

Please contact factory for options. TNC connectors are available as an option on all ports, or, TNC connector on input port and BNC on all output ports.

DC Power Option: Upon request we can supply our receiver multicouplers for +24 VDC or +48 VDC supply operation, contact factory before placing order


MCA104M
HF Receiver Multicoupler - 500 kHz to 50 MHz - 4 Ports


   LF/HF Frequency Range

   OP1dB = 17 dBm     OIP3 = 31 dBm

   50 MHz Input Low-Pass Filter

   No Signal Loss to Output Ports

   Rugged Cast Aluminum Case

 

MCA104M is an active multicoupler 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. The MCA104M 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.

If only two (2) output ports are needed model MCA102M is available. This unit have the same specifications as the MCA104M and in the same case style..

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)

Note: Coaxial interconnect cables are available. RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
Please scroll to bottom of this page to purchase cables.

Purchase MCA104M or MCA102M below
MCA108M
HF Receiver Multicoupler - 500 kHz to 50 MHz - 8 Ports

 

   LF/HF Frequency Range

   50 MHz Input Low-Pass Filter

   OP1dB = 17 dBm     OIP3 = 31 dBm

   No Signal Loss to Output Ports

   Rugged Cast Aluminum Case

 

MCA108M is an active multicoupler designed to distribute HF antenna signals to eight 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. The 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.

Data Sheet

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)

Note: Coaxial interconnect cables are available. RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
Please scroll to bottom of this page to purchase cables.

Purchase MCA108M below
Connector Options


MCA204M
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 4 Ports               NATO / NSN number:  5865-01-532-0314


   VHF/UHF Frequency Range

   25 MHz Input High-Pass Filter

   OP1dB = 17 dBm     OIP3 = 31 dBm

   No Signal Loss to Output Ports

   Rugged Cast Aluminum Case

 

MCA204M is an active multicoupler designed to distribute VHF/UHF antenna signals to four receivers without loss and with high isolation between ports. It is specifically suited for signal intercept stations, both fixed or mobile platforms. It can be used in any VHF/UHF monitoring post using receivers, scanners or spectrum analyzers. The MCA204M 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.

If only two (2) output ports are needed model MCA202M is available. This unit have the same specifications as the MCA204M and in the same case style..

Data Sheet

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)

Note: Coaxial interconnect cables are available. RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
Please scroll to bottom of this page to purchase cables.

Purchase MCA204M or MCA202M below


MCA208M
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 8 Ports                NATO / NSN number:  5895-01-532-0314

 

   VHF/UHF Frequency Range

   25 MHz Input High-Pass Filter

   OP1dB = 17 dBm     OIP3 = 31 dBm

   No Signal Loss to Output Ports

   Rugged Cast Aluminum Case

 

MCA208M is an active multicoupler designed to distribute VHF/UHF antenna signals to eight receivers without loss and with high isolation between ports. It is specifically suited for signal intercept stations, both fixed or mobile platforms. It can be used in any VHF/UHF monitoring post using receivers, scanners or spectrum analyzers. The 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.

Data Sheet

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  (MCA208M/N)

Note: Coaxial interconnect cables are available. RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
Please scroll to bottom of this page to purchase cables.

Purchase MCA208M below
Connector Options


MCA804/B
800 MHz Receiver Multicoupler - 4-ports,  800 MHz Service Band Monitoring  

 

   820 MHz to 890 MHz Frequency Range

   Micro-Strip Band-Pass Filter

   OP1dB = 14 dBm     OIP3 = 27 dBm

   No Signal Loss to Output Ports / 4 dB Gain

   Rugged Cast Aluminum Case

 

MCA804B is an active multicoupler designed to distribute antenna signals to four receivers without loss and with high isolation between ports. It is specifically suited for signal intercept stations, both fixed or mobile platforms, 800 MHz service band monitoring, trunk-tracking, etc.. It can be used in any UHF monitoring platform using receivers, scanners or spectrum analyzers. The MCA804B 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.

Also available is the MCA704/B for the 700 MHz service band, please contact factory for this model.

Data Sheet

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  (MCA804B/N)

Note: Coaxial interconnect cables are available. RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
Please scroll to bottom of this page to purchase cables.

Purchase MCA804B below
Connector Options


MCA04VLF
VLF/LF Receiver Multicoupler - 4-ports, 10kHz to 500 kHz

 

   10 kHz to 500 kHz Frequency Range

   High Port-toPort Isolation, >35 dB

   OP1dB = 14 dBm     OIP3 = 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. RG-58A/U with BNC male connectors, sweep tested to 1.5 GHz.
Please scroll to bottom of this page to purchase cables.

Purchase MCA04VLF below
Connector Options


 

Power Supply Notes - Active Multicouplers

ball-blu.gif (131 bytes) All Active Multicouplers requires +12 VDC/80 mA (nominal) to operate. Because of internal voltage regulation, this input DC voltage may be between +10 volts and +17 volts. DC power is applied via a standard coaxial style power jack (5.5mm/2.1mm) with the center pin positive.

For the North American market, a wall adapter (110VAC/+12VDC) is supplied as a standard accessory. For other countries, using AC power standards of 220 Volts, a DC power plug is supplied for the DC connection, this plug must wired by customer. On request, we can supply this plug wired with about 6 feet of cable for connection to customer +12 VDC power source.

The MCA series of multicouplers are designed to be used in mobile applications as well (surveillance vans, aircraft and shipboard SIGINT/COMINT platforms). If +12 VDC power is available, the multicouplers may be used with the supplied DC plug.For other special DC power requirements, please give us a call.
   

  Passive Multicouplers - Stock Models
For help with selection refer to "Tech Notes".
For Sales & Ordering, please go to "Sales Info".

Model Ports Frequency Range Con. Price
MC102 2 100 kHz to 500 MHz BNC $75.00
MC104 4 100 kHz to 500 MHz BNC $98.00
MC202 2 10 MHz to 1 GHz BNC $75.00
MC204 4 10 MHz to 1 GHz BNC $98.00
 

Common Specifications - Passive
Nominal Impedance:  50 Ohms
Port-To-Port Isolation:  22 dB (min)
                                 25 dB (typical)

Phase (input/output):  Zero degree
Coupler Gain/Loss:  -3.5dB (MC102/202)
                           :  -7dB   (MC104/204)
Case:  Die-cast aluminum, black powder coat
Mechanical:  4-3/8 X 2-3/8 X 1-1/4 Inches (L W H)
Options: TNC connectors -
 

Purchase below
Passive Multicouplers
Coaxial Interconnect cables, BNC, RG-58A/U, sweep tested to 1.5 GHz
Terminator, 50 Ohm, 5%, 1/2W. To terminate unused ports in critical applications. $12.00/ea.

Stridsberg Engineering, LLC
354 Albert Avenue
Shreveport, LA 71105, USA
DoD cage Code: 3RQT1
Tel: (318) 861-0660  Fax: (318) 861-7068
Last modified:
December - 2013