19 Inch Rack Attenuator Assemblies (75 Ohm)
Below is a sortable table of 75 Ohm programmable attenuator assemblies with 19 inch rack mount enclosures. The attenuators are step attenuator type. The relay step attenuators are electro-mechanical and have typical lifetime of 1 million operations. The solid-state step attenuators have no moving parts so there are no mechanical wear concerns. Solid-state attenuators have typical MTBF of 250,000 hours.
Remote Control
Our test systems are available with Ethernet, Serial, or GPIB remote control. The remote control features easy to use ASCII formatted remote commands. The step attenuators can be controlled individually (set attenuator command) or as a group (block command, set block command). All test systems with Ethernet/Serial control run out latest generation 3.x.x firmware. Use our Ethernet Test Box to demo the 3.x.x firmware.
JFW Model # | Impedance | Configuration | dB Total | dB Step | Frequency Start | Frequency Stop | Control | RF Connectors |
---|---|---|---|---|---|---|---|---|
75PA-053 | 75 Ohm | 2 Attenuators | 127 dB | 1 dB | 450 MHz | 2150 MHz | Keypad, Ethernet, RS-232 | F |
75PA-066 | 75 Ohm | 4 Attenuators | 127 dB | 1 dB | 450 MHz | 2150 MHz | Keypad, Ethernet, RS-232 | F |
75PA-068 | 75 Ohm | 4 Attenuators | 63.75 dB | 0.25 dB | DC | 1000 MHz | Keypad, Ethernet, RS-232 | F |
75PA-073 | 75 Ohm | 4 Attenuators | 95.5 dB | 0.5 dB | DC | 1218 MHz | Keypad, Ethernet, RS-232 | F |
75PA-074 | 75 Ohm | 4 Attenuators | 127 dB | 1 dB | DC | 1000 MHz | Keypad, Ethernet, RS-232 | F |
75PA-078 | 75 Ohm | 4 Attenuators | 31 dB | 1 dB | DC | 1000 MHz | Ethernet, RS-232 | F |
75PA-079 | 75 Ohm | 2 Attenuators | 31 dB | 1 dB | DC | 1000 MHz | Ethernet, RS-232 | F |
75PA-113-XX | 75 Ohm | 1-16 Attenuators | 95 dB | 1 dB | 5 MHz | 2150 MHz | Keypad, Ethernet, RS-232 | BNC, F |
75PA-118-XX | 75 Ohm | 1-16 Attenuators | 63.75 dB | 0.25 dB | 5 MHz | 2150 MHz | Keypad, Ethernet, RS-232 | F |
75PA-123-XX | 75 Ohm | 1-16 Attenuators | 63 dB | 1 dB | 5 MHz | 2150 MHz | Keypad, Ethernet, RS-232 | F |
Demo Units Available
JFW does stock some attenuator assemblies as demo units. Contact our sales department for availability. If you want to try out our firmware, then check out the online Ethernet Test Box running our latest generation firmware.
Custom Models
If you do not find a model on the website that meets your requirements, please use our inquiry form or email our engineering department. We will respond with a quick cost estimate. JFW does not charge NRE fees for new models. A large portion of the RF test systems that we manufacture are per custom requests.
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Assembly with 1-16 Attenuators 5-2150 MHz | 0-63dB x 1dB | 75PA-123-XX
JFW Model #: 75PA-123-XX
Impedance: 75 Ohms
Configuration: Available with 1 to 16 attenuators
Attenuator Type: Solid-state step attenuator
dB Total: 63 dB
dB Step: 1 dB
Frequency Start: 5 MHz
Frequency Stop: 2150 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Documentation: Data Sheet | Drawing -
Assembly with 1-16 Attenuators 5-2150 MHz | 0-63.75dB x 0.25dB | 75PA-118-XX
JFW Model #: 75PA-118-XX
Impedance: 75 Ohms
Configuration: Available with 1 to 16 attenuators
Attenuator Type: Solid-state step attenuator
dB Total: 63.75 dB
dB Step: 0.25 dB
Frequency Start: 5 MHz
Frequency Stop: 2150 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Documentation: Data Sheet | Drawing -
Assembly with 1-16 Attenuators 5-2150 MHz | 0-95dB x 1dB | 75PA-113-XX
JFW Model #: 75PA-113-XX
Impedance: 75 Ohms
Configuration: Available with 1 to 16 attenuators
Attenuator Type: Solid-state step attenuator
dB Total: 95 dB
dB Step: 1 dB
Frequency Start: 5 MHz
Frequency Stop: 2150 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Documentation: Data Sheet | Drawing -
Assembly with 2 Attenuators DC-1000 MHz | 0-31dB x 1dB | 75PA-079
JFW Model #: 75PA-079
Impedance: 75 Ohms
Configuration: 2 Attenuators
Attenuator Type: Relay step attenuators
dB Total: 31 dB
dB Step: 1 dB
Frequency Start: 0 MHz (DC)
Frequency Stop: 1000 MHz
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount @ 1RU high
Documentation: Data Sheet | Drawing -
Assembly with 4 Attenuators DC-1000 MHz | 0-31dB x 1dB | 75PA-078
JFW Model #: 75PA-078
Impedance: 75 Ohms
Configuration: 4 Attenuators
Attenuator Type: Relay step attenuators
dB Total: 31 dB
dB Step: 1 dB
Frequency Start: 0 MHz (DC)
Frequency Stop: 1000 MHz
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount @ 1RU high
Documentation: Data Sheet | Drawing -
Assembly with 4 Attenuators DC-1000 MHz | 0-127dB x 1dB | 75PA-074
JFW Model #: 75PA-074
Impedance: 75 Ohms
Configuration: 4 Attenuators
Attenuator Type: Relay step attenuators
dB Total: 127 dB
dB Step: 1 dB
Frequency Start: 0 MHz (DC)
Frequency Stop: 1000 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount
Documentation: Data Sheet | Drawing -
Assembly with 4 Attenuators DC-1218 MHz | 0-95.5dB x 0.5dB | 75PA-073
JFW Model #: 75PA-073
Impedance: 75 Ohms
Configuration: 4 Attenuators
Attenuator Type: Relay step attenuators
dB Total: 95.5 dB
dB Step: 0.5 dB
Frequency Start: 0 MHz (DC)
Frequency Stop: 1218 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount
Documentation: Data Sheet | Drawing -
Assembly with 4 Attenuators DC-1000 MHz | 0-63.75dB x 0.25dB | 75PA-068
JFW Model #: 75PA-068
Impedance: 75 Ohms
Configuration: 4 Attenuators
Attenuator Type: Relay step attenuators
dB Total: 63.75 dB
dB Step: 0.25 dB
Frequency Start: 0 MHz (DC)
Frequency Stop: 1000 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount
Documentation: Data Sheet | Drawing -
Assembly with 4 Attenuators 450-2150 MHz | 0-127dB x 1dB | 75PA-066
JFW Model #: 75PA-066
Impedance: 75 Ohms
Configuration: 4 Attenuators
Attenuator Type: Solid-state step attenuators
dB Total: 127 dB
dB Step: 1 dB
Frequency Start: 450 MHz
Frequency Stop: 2150 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount
Documentation: Data Sheet | Drawing -
Assembly with 2 Attenuators 450-2150 MHz | 0-127dB x 1dB | 75PA-053
JFW Model #: 75PA-053
Impedance: 75 Ohms
Configuration: 2 Attenuators
Attenuator Type: Solid-state step attenuators
dB Total: 127 dB
dB Step: 1 dB
Frequency Start: 450 MHz
Frequency Stop: 2150 MHz
Manual Control: Display and Keypad
Remote Control: Ethernet, RS-232
Enclosure Type: 19 inch rack mount
Documentation: Data Sheet | Drawing