In conjunction with Chelton's range of tuneable antennas, Logic Converter Units (LCUs) take frequency information from the radio and match the performance of the antenna.
A high-pass filter (HPF) attenuates content below a cut-off frequency, allowing higher frequencies to pass through the filter. A low-pass filter (LPF) attenuates content above the cut-off frequency.
A pre-amplifier amplifies the signals in the specified frequency range while rejecting spurious signals outside the range using incorporated filtering. Pre-amplifiers also incorporate a limiter to protect downstream equipment.
The 19-450 UHF and GPS SatCOM Antenna is a combined UHF satellite communications and Global Positioning System (GPS) antenna. The antenna is low profile in design.
The 19-450N variant is identical to the 19-450 except for the connector type. It is a UHF and GPS Satcom Antenna designed for combined UHF satellite communications and GPS functionality.
The 19H429 is a combined low-high angle, lightweight, and high-efficiency airborne UHF satellite communications antenna providing hemispheric pattern coverage by means of two antennas.