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Tunable Band Reject Filter RI 261

0.7-3.8 GHz, 20 MHz reject bandwidth, rack mount

Critical tool for adaptation to stringent ETSI/3GPP conformance test specifications for mobile device radio properties in device testing. Designed for formal conformance testing performed by accredited test houses, as well as internal verification by device vendors.

The Ranatec RI 261 is a versatile Tunable Band Reject Filter covering the 700 MHz to 3800 MHz range, designed for LTE and sub-6 GHz 5G testing. It offers precise frequency tunability and a compact rack-mountable design for efficient integration. The filter’s remote control support makes it an excellent choice for lab and production test environments.

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Applications

  • Conformance testing according to TS 136 521-1(LTE)
  • Spurious emissions measurements
  • Receiver Blocking measurements
  • Design verification of radio transmitters and receivers

Features

  • Frequency tunable between 700 – 3800 MHz
  • 1 kHz center frequency resolution
  • 25 ppm frequency stability
  • 20 MHz reject bandwidth as standard *
  • 35 dB band reject depth as standard *
  • Filter characteristics can be selected in runtime **
  • 19”, 3 U rack mountable
  • Remote control via LAN
  • LabView drivers

* Other filter characteristics available on request

** Multiple filter characteristics available on request

Specifications

Model Number RI 261
Description Tunable band reject filter 700-3800 MHz
Frequency bands for filter center frequency [MHz] 698-1000
1400-2000
2000-2700
3400-3800
Measurement bands [MHz] 600-1200
1200-2200
1700-3000
3100-4100
Filter bandwidth [MHz] 20
Filter slopes [MHz] 10

Ordering

  • RI 261 Tunable Band Reject Filter
  • RI 4271 Frequency Extension Box 26.5 GHz

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