STRIDSBERG ENGINEERING
Raven Signals - K5SE

Shreveport - Louisiana - USA
Military - Government - Commercial

          

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Receiver Multicouplers - HF, VHF & UHF

RADIO SURVEILLANCE, SIGINT-COMINT,  SWL & SCANNING


Multicouplers - General Description
The basic use of the receiver multicoupler is to enable several radios , 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 to meet a multitude of HF, VHF and 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.


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 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 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.

Options:

(1):   EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2):   PCB Conformal coating for high humidity installations.
(3):   TNC connectors

Data Sheet


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 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.

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.

Options:

(1):   EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2):   PCB Conformal coating for high humidity installations.
(3):   TNC connectors

Data Sheet


MCA204M
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 4 Ports


   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 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.

MCA204M has a mechanical and electrical design construction that will meet any government, military or commercial specification. This unit is design to give high performance results in any radio monitoring post.

Options:

(1):   EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2):   PCB Conformal coating for high humidity installations.
(3):   TNC connectors

Data Sheet


MCA208M
VHF/UHF Receiver Multicoupler - 25 MHz to 1 GHz - 8 Ports

 

   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 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.

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.

Options:

(1):   EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2):   PCB Conformal coating for high humidity installations.
(3):   TNC connectors

Data Sheet


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

 

MCA804/B is an active multicoupler designed to distribute antenna signals to 4 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.

MCA804/B 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.

Options:

(1):   EMI/RFI Ceramic feed-thru for DC power hardwired connections.
(2):   PCB Conformal coating for high humidity installations.
(3):   TNC connectors

Data Sheet


 

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

Model Ports Frequency Range Con. Price
MCA102M 2 500 kHz to 50 MHz BNC $148.00
MCA104M 4 500 kHz to 50 MHz BNC $185.00
MCA108M 8 500 kHz to 50 MHz BNC $335.00
MCA804/B 4 800 MHz Service Band BNC $195.00
MCA202M 2 25 MHz to 1 GHz+ BNC $148.00
MCA204M 4 25 MHz to 1 GHz+ BNC $185.00
MCA208M 8 25 MHz to 1 GHz+ BNC $335.00

    ball-blu.gif (131 bytes) For additional technical data, click on model numbers ball-blu.gif (131 bytes)

Power Supply Notes - Active Multicouplers

ball-blu.gif (131 bytes) All Active Multicouplers requires +12 VDC/100 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, Satin Black baked enamel
Mechanical:  4-3/8 X 2-3/8 X 1-1/4 Inches (L W H)

Options: TNC connectors -

 

Technical Questions?

 

Stridsberg Engineering, Inc.
354 Albert Avenue
Shreveport, LA 71105, USA
Tel: (318) 861-0660  Fax: (318) 861-7068
Last modified: September, 2008