JFW model 75PD-188 F is a 11-way resistive divider/combiner that covers the frequency range DC-2150 MHz. It has 75 Ohm F female RF connectors. The unit has 12 total ports that are internally connected using a resistive star configuration. This design is ideal for testing 75 Ohm cable equipment that needs to communicate with each other over a 75 Ohm coax network. The star design is bidirectional allowing multiple 75 Ohm devices to communicate with each other with equal loss between all devices. Use JFW’s precision F male/male RF cable model 016-910-xx to connect the devices with minimum VSWR.
JFW model 50BA-032-31 SMA is a 4 channel attenuator assembly that covers 0.1-18 GHz. Each channel consists of a solid-state programmable attenuator with attenuation range 0 to 31dB in 1 dB steps. Each attenuator can be controlled individually or as a group. This benchtop attenuator assembly is remotely controlled via Ethernet/RS-232 and manually via momentary toggles on the front panel.
The current attenuation setting for each attenuator is displayed on the front panel. Whether the attenuators are changed by a remote user or manually, the attenuation displayed will be updated immediately. This is very useful when running remote scripts so that you can see that attenuator settings changing as the script executes.
JFW is proud to announce the addition of a new line of 18 GHz step attenuators to our product line. These new 50 Ohm solid-state step attenuators cover 100 MHz to 18 GHz with an attenuation range of 0-31 dB by 1dB steps. The attenuators can handle up to +20 dBm of RF input power. We offer these attenuators as individual components or as an integrated RF test system.
TTL controlled step attenuator, 0.1-18 GHz, 0-30 x 1dB steps
USB controlled step attenuator, 0.1-18 GHz, 0-30 x 1dB steps
Ethernet attenuator assembly with (1) step attenuator, 0.1-18 GHz, 0-30 x 1dB steps
Ethernet attenuator assembly with (2) step attenuators, 0.1-18 GHz, 0-30 x 1dB steps
Ethernet attenuator assembly with (4) step attenuators, 0.1-18 GHz, 0-30 x 1dB steps
Now available from JFW: USB Programmable Attenuators with 0.25 dB & 0.5 dB step size up to 3 GHz. The majority of programmable attenuators available have 1 dB steps. However, for some applications, such as satellite communication testing, smaller step sizes can be beneficial. For those cases, these three models can provide that capability.
- 50P-2058 has 0.25 dB steps up to 31.75 dB.
- 50P-2042 has 0.5 dB steps to 63.5 dB.
- 50P-2055 goes all the way to 95.5 dB in 0.5 dB steps.
All three attenuators are controlled and powered through a Mini-B USB connector. A USB hub can be used to simultaneously control multiple attenuators. Included with each step attenuator is our Windows-based GUI software for easy attenuation control of a single or multiple attenuators.
JFW is excited to announce a new dual rotary attenuator, 50DR-141, that covers LTE Band 42. It functions from DC up to 3600 MHz. This attenuator handles up to 2 Watts of RF power. The maximum attenuation is 40 dB in 1 dB increments. The 50DR-141 has mounting holes in the front plate for easy mounting on panels for instrumentation applications. RF connector options include SMA or N.
With the recent announcement of new 1P6T and 1P12T models, JFW is now able to offer an entire line of 75 Ohm electro-mechanical RF switches for cable TV and VSAT testing applications. All models cover a frequency range of DC-2150 MHz, are self-terminating, and come standard with F female connectors (75 Ohm BNC and N also available). Full list of models include:
- 1P1T – 75S-348
- 1P2T – 75S-111
- 1P3T – 75S-118
- 1P4T – 75S-306
- 1P6T – 75S-381
- 1P8T – 75S-221
- 1P12T – 75S-382
- 1P16T – 75S-303
Model 50T-605 is a coaxial RF termination rated for 2 Watts RF input power. It can be selected with either 4.3/10 female or 4.3/10 male as the RF connector. It operates at DC-6000 MHz and has maximum VSWR of 1.1:1.
Three new 75 Ohm blocking matrix switch models have been added to the JFW website. Model 75MS-029 is a solid-state 2X8 blocking matrix that operates 3-1000MHz. Model 75MS-030 is a solid-state 2X6 blocking matrix that operates 3-1000MHz. Model 75MS-037 is an electro-mechanical 2X12 blocking matrix that operates DC-1700MHz. These 75 Ohm matrix switches can be used to fan-out connections from a 2-port 75 Ohm network analyzer to allow for automated multi-port 75 Ohm testing. Connecting the 2X12 matrix in series with a 2-port network analyzer, creates a twelve port test set. For all three models, the unused output ports are self-terminating at 75 Ohm impedance to keep the DUT properly impedance matched at all times. All three models are remotely controlled via serial or TCP/IP connections. The remote command set consists of simple ASCII formatted commands. The remote command set for our 3.x.x firmware is available for download. If you have any technical questions about these 75 Ohm matrix switches, please contact our engineering department for assistance.
JFW Model #50MS-367 2.9MM is a 4 X 4 blocking matrix switch that operates DC-40 GHz. The RF connectors are 50 Ohm impedance 2.9mm female type located on the rear panel. The unit is remotely controlled via Ethernet or RS-232. This RF matrix switch utilizes our 3.X.X firmware command set for remote control. All unused input ports and unused output ports are self-terminating at 50 Ohms. The current IP settings and serial baud rate are displayed on the front panel display. The IP settings and baud rate can be updated using the keypad.
JFW is pleased to announce a new low power 2.9mm fixed attenuator that will be needed in every 5G lab technician’s toolbox. The JFW Model #50FHAR-xxx 2.9MM is a fixed attenuator that covers the frequency range DC to 40 GHz. It can handle 2W of RF Input power. It has 2.9mm male/female RF connectors and a compact length of 0.86 inches. This attenuator is available with attenuation values: 3, 6, 10, 20, or 30dB.