Part #: 1080-154

Call (858) 277-3300 to order

» Download Data Sheet (PDF )

GPS Band Notch Filter, DC - 1.40 GHz & 1.75 - 2.60 GHz, In-Line, SMA RF Connectors
  • Engineering Drawing: All dimensions are in inches
  • Filter Response Plot

Product Overview

Southwest Antennas Part # 1080-154 is a small, weatherproof GPS L1 frequency (1,575 MHz ±10 MHz) notch filter, with pass bands from DC - 1,400 MHz and 1,750 - 2,600 MHz.

This filter is designed to help eliminate out-of-band TX noise power from disrupting GPS signal reception. Since GPS antennas must pick up a relatively weak signal from a satellite (often -130 dBm on the earth's surface), it can easily be disrupted by much more powerful co-located transmitting antennas.

By utilizing this filter on the RF chain for co-located transmitting antennas, their signal is attenuated by -30 dBa from 1,565 to 1,585 MHz, giving nearby GPS antennas a cleaner frequency band in which to receive satellite location and timing data.

This product is ideal for tactical radio systems, fixed site infrastructure, unmanned systems, or other communication networks that are operating in congested, high-interference RF environments. The ceramic notch filter is housed inside a rugged G10 fiberglass housing, with RF connectors on both ends of the product.

Features: 
  • Stand-alone filter module with RF connectors
  • GPS L1 notch filter:
    • -30 dBa @ 1,575 MHz ±10 MHz
  • Pass bands:
    • 0.6 dBa insertion loss from DC - 1,400 MHz
    • 1.0 dBa insertion loss from 1,750 - 2,600 MHz
  • 10W peak power handling
  • Small size and lightweight design
  • Can be quickly added to existing systems to help improve performance
  • SMA(m) and SMA(f) non-rotating RF connectors

Filter Specifications

Parameter Value Units Tolerance
Filter Type 3mm GPS Notch Filter (ceramic)
Fo 1.575 / 1,575 GHz / MHz
Filter Frequency Band L Band
Filter Impedance 50 Ohms
Insertion Loss 0.6 dBa max over DC to 1400 MHz, 1.0 dBa max over 1,750 - 2,600 MHz
Rejection 1 -30 dBa min @ Fo ±10 MHz
Filter Power CW 8 Watts
Filter Power Peak 10 Watts
Operating Temp -40 to +85 C
Product Length 2.740 / 69.596 inches / mm ±.06" (including RF connector length)
Product Diameter 0.562 / 14.275 inches / mm
Product Weight 0.82 / 23.13 oz / grams
RF Connectors SMA(m) Non-Rotating to SMA(f) Non-Rotating

Downloads

Data Sheet (PDF )