Microwave Filter Company, Inc.
International Calls: (315) 438-4700
Toll Free: (800) 448-1666
mfcsales@microwavefilter.com
"Committed to Excellence" Since 1967
International Calls: (315) 438-4700
Toll Free: (800) 448-1666
mfcsales@microwavefilter.com
"Committed to Excellence" Since 1967
An ISO 9001:2015 Registered Company
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L-Band Tunable Notch Filters
8976 Series
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 |
Example: Model 8976B50-2 = Dual notch w/50 ohm
BNC-female connectors
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| Model 8976 Typical Response | |
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| Model 8976-2 Typical Response | |
