An/Ura-38 Modification Kit to Eliminate the Susceptibility of Near Field Antenna Interference

摘要

The report presents the development work and resulting prototype AN/URA-38 antenna coupler modification kit built by R F Communications under Contract No. N0123-70-C-0838. The kit includes a frequency selective discriminator that provides coupler 'phasing' and 'resistance' information over the 2-30 MHz range. The selectivity feature is intended to eliminate antenna coupler mistuning by reducing the susceptibility to near-field adjacent channel antenna interference. The development program's objective to improve or allow communications under severe radio interference was achieved. (Author)