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Test Systems Gallery

Most of our test systems look very similar (i.e. keypad on front panel, RF connectors on rear panel). However, about 50% of the test systems that JFW manufactures are custom models. So we made this gallery with pictures and descriptions as a tribute to all of the custom test systems that do not get listed on the JFW website.

Custom Enclosure

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Custom Enclosure

Customer had little vertical space to place their benchtop programmable attenuator assembly. JFW designed a new enclosure that was as short as possible keeping enough room for a front panel keypad and display.

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Block Diagram Panel Block Diagram on Front Panel w/LED Indicators

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Block Diagram Panel Block Diagram on Front Panel w/LED Indicators

This model contains programmable attenuators and RF switches. The current dB setting of the attenuators is displayed on the front panel. All switch settings are shown via LED???s that are integrated to be part of the block diagram that is screened on the front panel.

Non-JFW Components

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Non-JFW Components

This model contains programmable attenuators, amplifiers and filters. The only components in this system that are JFW built are the attenuators. The customer called out amplifiers and filters from other companies. We integrated all of the RF components into a single chassis with Ethernet/RS-232 control.

Custom Labeling & RF Connector Placement

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Custom Labeling & RF Connector Placement

This test systems contains directional couplers, programmable attenuators, diplexers, reactive power divider/combiners and fixed pads. The parts are configured per the customer block diagram. All RF connectors are on the front panel with custom labeling per customer request.

Custom Hardwired Attenuator Blocks

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Custom Hardwired Attenuator Blocks

This programmable attenuator assembly contains 16 attenuators. The customer needed the attenuators hardwired as pairs. Also, the current dB setting of the 8 blocks had to be displayed on the front panel. If you click the picture it will enlarge and you will see the assigned block #???s and attenuators #???s. All N female connectors are located on the rear panel. Block dB settings and keypad located on the front panel.

Custom Labeling & RF Connector Placement

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Custom Labeling & RF Connector Placement

This model is a manually controlled limited configuration handover test system. The rotary knobs on the front panel allow the attenuation to be manually adjusted. This unit has TNC female and SMA female connectors. Placement and labeling of the RF connectors is per customer request

No RF Components

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No RF Components

This control box has no internal RF components. Remote commands via Ethernet/RS- 232 can be used to control 21 external programmable attenuators and 6 external RF switches.