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Full Fan-out

Whether you are fading multiple base station signals to a handset or testing multiple communication standards with wireless devices, JFW has a handover test system to help automate your RF testing.

JFW’s full fan-out handover test systems are a type of matrix switch that is constructed with power divider/combiners on both halves of the matrix with programmable attenuators in between. There is an individually controlled programmable attenuator on every RF path through the matrix. This type of construction allows every input signal to be available simultaneously to every output port at differently attenuated signal levels. Example block diagrams are located below the model selection table.

If you do not require every input signal to be available at different signal levels, then you could instead use one of our limited fan-out handover systems.

Below is a sortable table containing our online full fan-out handover test system models. If you can’t find a model that meets your requirements, please contact us. One of our engineers will work with you to pick out an existing model or design a custom model for your application. JFW does not charge NRE’s and our pricing for custom models is in-line with our catalog models.

Click the column headers to sort our online models. For your specific application, please contact JFW for assistance or use our Inquiry Form.

JFW Model #ImpedanceConfigurationdB TotaldB StepFrequency StartFrequency StopControlRF Connectors
50PA-102250 Ohms6 x 6 Handover System63 dB1 dB20 MHz1000 MHzManual, Ethernet, RS-232N, SMA, TNC Female
50PA-36650 Ohms12 x 6 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232SMA Female
50PA-45250 Ohms2 x 2 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N Female
50PA-45850 Ohms6 x 4 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N Female
50PA-53950 Ohms4 x 4 Handover System95 dB1 dB2000 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-56050 Ohms4 x 8 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N Female
50PA-61350 Ohms10 x 2 Handover System95 dB1 dB700 MHz6000 MHzManual, Ethernet, RS-232N Female
50PA-65950 Ohms6 x 6 Handover System127 dB1 dB100 MHz1000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-67350 Ohms12 x 4 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-68350 Ohms6 x 2 Handover System127 dB1 dB698 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-69450 Ohms4 x 4 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-73050 Ohms6 x 3 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-76350 Ohms24 x 4 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-76450 Ohms12 x 5 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-78150 Ohms6 x 6 Handover System127 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-81950 Ohms2 x 2 Handover System63 dB1 dB700 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-82550 Ohms6 x 2 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-83650 Ohms3 x 8 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-84150 Ohms4 x 16 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-84250 Ohms8 x 16 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-85050 Ohms12 x 12 Handover System95 dB1 dB30 MHz3000 MHzManual, Ethernet, RS-232N, SMA, TNC Female
50PA-90050 Ohms12 x 2 Handover System127 dB1 dB698 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-90450 Ohms48 x 6 Handover System95 dB1 dB700 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-91250 Ohms8 x 8 Handover System95 dB1 dB2000 MHz6000 MHzManual, Ethernet, RS-232SMA Female
50PA-94750 Ohms4 x 4 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-94850 Ohms4 x 2 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-95050 Ohms4 x 8 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-96950 Ohms8 x 8 Handover System95 dB1 dB698 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female
50PA-97950 Ohms6 x 8 Handover System95 dB1 dB698 MHz3000 MHzManual, Ethernet, RS-232SMA Female
50PA-98250 Ohms6 x 8 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232SMA Female
50PA-98350 Ohms8 x 8 Handover System95 dB1 dB500 MHz6000 MHzManual, Ethernet, RS-232SMA Female
50PA-98950 Ohms10 x 2 Handover System127 dB1 dB698 MHz3000 MHzManual, Ethernet, RS-232N, SMA Female

Full Fan-out Handover Test System Example

The below block diagrams show examples of a full fan-out 4 X 2 handover test system. Each path through the test system has its own individually controlled programmable attenuator. This configuration allows for each input signal to be simultaneously available to each output port at differently attenuated signal levels.

The isolation between output ports is determined by summing the isolation of the input power divider/combiner (typically 20dB for reactive type dividers) with the attenuation setting of the programmable attenuators connected to the same input port. That makes it important to keep programmable attenuators on unused paths at their maximum attenuation setting in order to maximize system isolation.

Block Diagram #1
This block diagram illustrates the construction of the full fan-out 4 x 2 handover test system. It shows all of the connectivity between the input ports and the output ports. This design allows the RF signal on input #1 to be simultaneously available to both outputs at different signal levels.

Block Diagram #2
This block diagram shows one possible setting of a full fan-out 4 x 2 handover test system. There are four input signals (red, blue, green, purple). The 1 x 2 power divider/combiners split up the input signals to both output ports. The 1 x 4 divider/combiners sum up all of the input signals for each output port.

Attenuator #1 sets f1 at 0dB of attenuation for Output #1. Attenuator #2 sets f2 at 127dB of attenuation for Output #2. The RF signal on input port #1 is simultaneously available to both output ports at different signal levels.


Block Diagram #3
This block diagram shows another possible setting of a full fan-out 4 x 2 handover test system. The 1 x 2 power divider/combiners split up the input signals to both output ports. The 1 x 4 divider/combiners sum up all of the input signals for each output port.

For this example the user on output port #2 has turned off all of the input signals. The user does this by setting all of the programmable attenuators connected to output #2 to their maximum attenuation setting (i.e. 127dB). The programmable attenuators connected to output port #1 are set to various attenuation settings (i.e. 0dB, 3dB, 6dB, 9dB).

Capabilities & Options

Custom Models
The models listed in the above table showcase some of our standard full fan-out handover test systems. However, most of JFW’s test system business involves custom designed models. JFW does not charge NRE’s for custom models. We encourage you to email us your specific requirement at sales@jfwindustries.com. We will respond with a ROM (rough order of magnitude) quote in 1-2 days. Please include a block diagram with your request if the test system involves multiple RF components.

Remote Commands
JFW has standard remote commands for GPIB, Ethernet, and RS-232 controlled models. The command syntax is simple and allows easy control of the RF switch settings. In addition to our standard commands, JFW can also provide customer specific commands upon request.

Test Software
JFW provides a GUI test program with all Ethernet and RS-232 controlled test systems. The test software for handover test systems has all of the remote commands built in for easy testing. Jump to our sample test programs to see example programs.

Options
Attenuators: Electro-mechanical (up to 18GHz)
Remote Control: Ethernet, RS-232, GPIB, or TTL
Manual Control: Keypad with display
Enclosures: Benchtop or 19″, 23″, 24″ rack enclosures
Supplied Power: AC, Dual redundant AC, or DC powered
RF Connectors: BNC, TNC, SMA, N, etc.
Impedance: 50 Ohm or 75 Ohm

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