Features

• Compact FM bandpass filter
• Wall or ceiling mounted
• Optional floor stand available
• 3.5 kW power handling capability (7 kW with optional forced air cooling)

Description

Electronics Research, Inc 938 Series low power FM band pass filter. The filter uses a high quality aluminum construction. The filter is easily mountable to a wall or ceiling, The 938 Series is available as a reflective filter or as a constant impedance filter. The 938 Series is designed with a compact profile while maintaining high performance. The temperature compensated design is perfect for any low power FM Analog or IBOC application.(Optional Floor Stand available, Type Number FI900-FL)

Specifications

• Band:
  FM
• Number of Cavities:
  Three (3)
• Cooling Method:
  Convection/Forced Air Optional
• Frequency Range:
  88 to 108 MHz
• Length:
  25.88 in | 657.4 mm
• Width:
  8.625 in | 219.1 mm
• Height:
  48 in | 1219.2 mm
• Mounting Configurations:
  Floor | Wall | Ceiling
• Input Types:
  1-5/8 inch 50 Ohm EIA Male
• Output Types:
  1-5/8 inch 50 Ohm EIA Male
• Maximum Power Rating:
  3.5 kW | 7 kW with optional forced air cooling
• Insertion Loss:
  -0.35 dB at Fc
• Rejection:
  -20 dB ± 1.0 MHz | -40 dB ± 2.0 MHz
• VSWR:
  1.10:1, max. ± 200 kHz
• Group Delay:
  100 ns ± 200 kHz

Models Available:

• 938A
  ERI Model 938A FM Band Pass Filter, three cavities, floor mounted, convection cooled. 3.5 kW power rating. 1-5/8-inch input and output. Includes mounting tabs for wall or ceiling mount, hardware not included.
• 938B
  ERI Model 938B FM Band Pass Filter, three cavities, floor mounted, forced air cooled. 7 kW power rating. 1-5/8-inch input and output. Includes mounting tabs for wall or ceiling mount, hardware not included.

Product Brochure

938 Series FM Band Pass Filter Product Brochure

Download File