Attenuators

ATTENUATORS PRODUCTS

JFW’s 50BA-034-127 is a mini benchtop programmable attenuator assembly designed for mm-wave testing in the 30 – 3000 MHz frequency range. It is configured with one solid-state programmable attenuator, and it features an attenuation range of 0 to 127 dB in 1 dB increments and 50 Ohms nominal impedance.

JFW’s Model 50BA-043-63 is a 50 Ohm benchtop attenuator assembly containing two solid-state step attenuators. These attenuators feature attenuation range of 0 to 127 dB by 1 dB steps and operate within the 100 MHz to 18 GHz frequency range.

JFW’s Model 75P-217 is a solid-state programmable attenuator system featuring an attenuation range of 0 to 95 dB by 1 dB increments and a 5 to 2150 MHz frequency range. With 75 Ohm BNC, F or N female RF connectors, the attenuator has seven individually controlled attenuation steps:  1 dB, 2 dB, 4 dB, 8 dB, 16 dB, 32 dB and 32 dB.

JFW’s 50P-2068 is a programmable attenuator designed for testing applications covering the 0.1 to 18 GHz frequency range. The system has a total 31 dB attenuation (in 1 dB steps), is rated for +20 dBm RF input power, and comes with SMA female coaxial RF connectors.

JFW’s Model 75PA-113-XX is a 19-inch rack mount attenuator system with 1 to 16 75 Ohm solid-state step attenuators. Featuring an attenuation range of 0 to 95 dB by 1 dB increments and 75 Ohms nominal impedance, the system is perfect for DOCSIS and CATV automated RF testing applications in the 5 - 150 MHz range.

JFW’s 50P-2072 is a programmable attenuator designed with TTL control, making it ideal for R&D labs or other flexible test environments. It covers the 100 MHz – 40 GHz frequency range, and it has a 31 dB attenuation total (in 1dB steps).

The STA-60-12-P8 from SAGE Millimeter is a high-precision motorized programmable attenuator designed for millimeter wave systems across the E-band frequency range (60 – 90 GHz). The attenuation control and power interface is an integrated and pre-configured Lantronix Xport AR device with an Ethernet port (RJ45) which is used to accommodate remote operations from 0 to 60 dB and up to 70 dB attenuation value.

The TS05XX Series chip attenuator is designed with increased power handling and requalified to higher power levels. The increased power handling capability is based on individual device attenuation values as follows: 0-1 dB attenuators are rated at 5 W, 2-3 dB rated at 2 W, 4-10 dB rated at 1 W, and 11-20 dB rated at 0.75 Watts.  It can be used for mobile networks, broadcast, high power amplifier, military, and instrumentation applications.

ABOUT

Attenuators

Attenuators are the exact opposite of an amplifier. It is used to reduce the intensity of either electricity or sound. For example the digital impulse that is used to drive a speaker may be stepped down to prevent the lower range speakers from failing. An equalizer in music is a form of amplifier and attenuator rolled up into one. It however targets on particular frequency. Every instrument in a musical symphony and even the human voice occupy a certain frequency range. Each not of a violin for example has a very specific frequency. The A string on a violin is exactly 440Hz. Using an attenuator, one can target the exact frequency of 440Hz and reduce its intensity. It can even be attenuated all the way down to zero. If this were to happen then every time an A not of a violin was played, it would not be heard.

This sort of technology is used to clean up sounds of recordings and other sounds in a recording. It is even possible to pin point the frequency range of the human voice then use an attenuator to reduce it to zero. Imagine if one were to take a recording of a song and attenuate just the vocal portion, the song will now resemble a minus one track.

Attenuators have other more sophisticated commercial uses. The can be used to reduce the electrical impulses that were amplified to travel long distances and may still carry strong energy when it arrives, so it needs to be attenuated before it is channeled for processing.