PRODUCT OVERVIEW
This is a compact GNSS bandpass filter covering GPS L1-L5, GLONASS, BeiDou/COMPASS, and Navic in a single 1100–1700 MHz passband. Insertion loss is under 2 dB, with out-of-band attenuation greater than 25 dB from 50 MHz–1 GHz and 2–3 GHz.
The filter uses SMA-F connectors and operates across a -40°C to +85°C range.
This version does not pass DC. If you're powering an active GNSS antenna over the same coax as the signal, see the DC bypass version instead.
APPLICATIONS
GNSS signals arrive extremely weak — often 20–30 dB below the noise floor before despreading even helps. Strong nearby sources like cellular, LTE, UHF, and 915 MHz/2.4 GHz ISM-band transmitters can desensitize a receiver or LNA even when they're not close in frequency, costing acquisition margin and tracking reliability you can't recover downstream. This filter rejects that interference before it reaches your receive chain.
Typical uses:
- GNSS reception in weak-signal environments (rooftop, under canopy, indoor-adjacent installs)
- Protecting a GNSS receiver or LNA from cellular, LTE, UHF, and ISM-band interference
- Systems with no DC power on the antenna line
SPECIFICATIONS
Passband
1100 MHz - 1700 MHz
Check the image for S21 and S11 specifications.
NOTES
Connectors: SMA-F
Contact us if you require other connector types or integration support
RELATED PRODUCTS
- GNSS Bandpass Filter with DC Bypass — same passband, passes DC from the receiver to power an active antenna
- GNSS Filtered Bias Tee
