Limited Fan-out Transceiver Test Systems for Radio Testing

JFW model 50PMA-116 Limited Fan-out Transceiver Test Systems for Radio TestingLimited Fan-out Transceiver Test Systems for Radio Testing

The limited fan-out transceiver test system is constructed as a reduced mesh matrix. A port connects to only X number of its neighboring ports. The number of its neighboring ports can vary depending on the application. By reducing the number of internal paths through the matrix, the size and cost of the test system is reduced. The reduced number of internal paths allows us to offer a greater number of ports. More ports means a greater number of radios to be tested simultaneously. The programmable attenuators can be remotely controlled to simulate static or dynamic environments.

In the configuration column of the below table, we use the term LC to describe the number of neighboring ports each port is internally connected.

16 Port LC8: 16 Ports with each port connected to its 8 neighboring ports
32 Port LC16: 32 Ports with each port connected to its 16 neighboring ports
48 Port LC16: 48 Ports with each port connected to its 16 neighboring ports

The reduced mesh is our latest type of test system to be added to the JFW website. If you do not find a model that meets your requirements, please contact us or use our Inquiry Form.  JFW does not charge NREs for new test system models.

JFW Model #ImpedanceConfigurationdB TotaldB StepFrequency StartFrequency StopControlRF Connectors
50PMA-10850 Ohm32 Ports LC1695 dB1 dB30 MHz3 GHzKeypad, Ethernet, RS-232N, SMA, TNC
50PMA-10950 Ohm24 Ports LC1695 dB1 dB30 MHz3 GHzKeypad, Ethernet, RS-232N, SMA, TNC
50PMA-11050 Ohm40 Ports LC1695 dB1 dB30 MHz3 GHzKeypad, Ethernet, RS-232N, SMA, TNC
50PMA-11650 Ohm16 Ports LC895 dB1 dB30 MHz3 GHzKeypad, Ethernet, RS-232N, SMA, TNC

Limited Fan-out Mesh Vs. Full Fan-out Mesh

The left block diagram is a 12 Port LC8 design. Each port is connected to its eight neighboring ports. The four upper neighboring ports and the four lower neighboring ports. A 12 Port LC8 design requires 48 programmable attenuators. The right block diagram is a full fan-out 12 port mesh which requires 66 programmable attenuators. The limited fan-out design requires 27.27% fewer programmable attenuators than its full fan-out counterpart. This results in the limited fan-out design costing less and being physically smaller while still having the same number or ports. The reduction of internal components becomes even greater as the number of ports is increased.

Custom Models

The models listed in the above table are our standard limited fan-out transceiver test systems. JFW does not charge NREs 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.

Remote Commands

The transceiver test system models are available with Ethernet/Serial remote control.  Our current generation of Ethernet/Serial firmware is called 3.x.x firmware. It features easy to use ASCII formatted remote commands. Use our Ethernet Test Box to demo the 3.x.x firmware.

Test Software

JFW provides a GUI test program with all Ethernet and RS-232 controlled test systems. The test software for transceiver test systems has all of the remote commands built in for easy testing. In addition to the remote commands, the GUI test program has additional functionality such as keypress, handover, and indefinite handover. Several of our sample test programs are available online.