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Microwave Filter

MFC L-Band Tunable Notch Filters 8976 Series

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These versatile field-tuned notch filters remove undesired L‑band transmissions with minimal effect on the desired band.

Common Applications:

  • C-band Downconversion
  • Global Navigation Satellite Systems (GPS, Galileo, GLONASS)
  • Digital Audio Broadcasting (DAB)
  • Amateur Radio (23 cm Band)

Features:

  • Wide Operating Passband - DC to 2500 MHz (excl. notch region)
  • Single and Dual Notch Models Available
  • No Tuning Tools Required - Easy-to-Use Knob Controls
  • Available in 75 ohm or 50 ohm Configuration
Model Description Tuning Range Notch Depth 3 dB Bandwidth Tuning Actuation
8976 Single Notch 900 - 1750 MHz 15-18 dB Typ 3.0 MHz Typ Single Knob
8976-2 Dual Notch 900 - 1750 MHz 30-35 dB Typ* 3.5 MHz Typ* Dual Knob**

* Both notches tuned to same frequency.

** Independent Tuning – May be tuned to same notch frequency (for deeper notch) or two separate frequencies (for dual carrier/wideband notching).

Ordering Information:
8976(X)(Y) - Single Notch Model
8976(X)(Y)-2 - Dual Notch Model

(X) = Connector Type
  = (B) BNC-female
  = (S) SMA-female
  = (No Designation) F-female
(Y) = Impedance
  = (50) 50 ohm
  = (No Designation) 75 ohm
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Details

These versatile field-tuned notch filters remove undesired L‑band transmissions with minimal effect on the desired band.

Common Applications:

  • C-band Downconversion
  • Global Navigation Satellite Systems (GPS, Galileo, GLONASS)
  • Digital Audio Broadcasting (DAB)
  • Amateur Radio (23 cm Band)

Features:

  • Wide Operating Passband - DC to 2500 MHz (excl. notch region)
  • Single and Dual Notch Models Available
  • No Tuning Tools Required - Easy-to-Use Knob Controls
  • Available in 75 ohm or 50 ohm Configuration
Model Description Tuning Range Notch Depth 3 dB Bandwidth Tuning Actuation
8976 Single Notch 900 - 1750 MHz 15-18 dB Typ 3.0 MHz Typ Single Knob
8976-2 Dual Notch 900 - 1750 MHz 30-35 dB Typ* 3.5 MHz Typ* Dual Knob**

* Both notches tuned to same frequency.

** Independent Tuning – May be tuned to same notch frequency (for deeper notch) or two separate frequencies (for dual carrier/wideband notching).

Ordering Information:
8976(X)(Y) - Single Notch Model
8976(X)(Y)-2 - Dual Notch Model

(X) = Connector Type
  = (B) BNC-female
  = (S) SMA-female
  = (No Designation) F-female
(Y) = Impedance
  = (50) 50 ohm
  = (No Designation) 75 ohm
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