MtronPTI, a manufacturer of custom RF/microwave filters and frequency control products, has released the new LF9454 and LF9455 GPS band reject filters designed to reduce cosite interference from jamming systems.
“Battlefield success starts with controlling the electromagnetic spectrum; but electronic countermeasures – jammers – can drown out sensitive GPS receivers on the same aircraft. The LF9454 and LF9455 block jammer signals around the two primary GPS bands so satellite lock is maintained.
Altitude certified, smaller and higher power than alternatives, these GPS Band Reject filters keep countermeasure UAVs on target, troops safe and the enemy quiet,” Bruce Mackie, senior applications engineer at MtronPTI, said.
“Despite advances in inertial navigation, UAVs still need a good GPS position; but GPS signals at 1.2 and 1.5 GHz are in the middle of handheld radio and cell phone bands – typical jamming targets. Tiny (two to three cubic inches) and high power (+52 dBm /160 Watts), these GPS filters provide a critical edge for our electronic forces.”
The LF9454 L1 band and LF9455 L2 band notch filters include 500 – 2600 MHz passband, insertion loss less than 0.3 dB and GPS band rejection typically 18 – 20 dB. The filters are guaranteed to operate at full CW power to an altitude of 10,000 feet and temperatures from -20 to +75 °C.
