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AT290-75 Programmable Attenuator
75ohm Programmable Attenuator Features
The AT290-75 is a universal digital attenuator with standalone supply and small dimensions, providing easy handling and remote control through RS232 9 pins interface.
Its small size and ease of use will soon make it a must in any RF professionnal or amateur lab.
Its communication possibilities allows to include it in a larger automated test bench or in complete instrumentation systems.
The AT290-75 is the extended frequency range version, with some great additionnal features, like USB connection, Li-Ion battery, rugged aluminium housing and graphical display.
AT290-75 is also available with 75 Ohms impedance, but with limited frequency range (2.2 GHz) and BNC connectors, as reference AT290-75.
AT290-75 Programmable Attenuator
- Frequency range: 100kHz-2.2GHz
- Attenuation range: 0 to 91 dB, 1 dB step
- Insertion loss:
< 6 dB at 1 GHz
< 7 dB at 2 GHz
< 8 dB at 3 GHz
< 10 dB to 4 GHz
- RF port & Impedance: BNC, 75 Ohms
- Max power : 25 dBm
- IP3 : > 35 dBm
- Control interface: Manual / RS232
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