ARMORER Navigation · CRPA · EW v@armorer.org

Practice 02

CRPA.

Anti‑jam antennas selected, integrated and verified on the platform they have to work on.

Also

FIG 03 Azimuth gain cut · adaptive nulling
Antenna gain pattern with two steered nulls A polar plot comparing a fixed reception pattern antenna, shown as a near-circular dashed trace, with a controlled reception pattern antenna that places two deep nulls of about thirty decibels on interference sources bearing 133 and 247 degrees while retaining coverage elsewhere. -30 dB -20 dB -10 dB 000 090 180 270 SV J1 J2
Two interferers nulled by roughly 30 dB; sky coverage retained. CRPAFRPA replaced
Selection
Element count against the expected interferer geometry. Nulling versus beam‑forming. Band coverage, size, weight and power, and verification of supplier performance claims against the conditions they were measured under.
Integration
Siting and installation review, the antenna‑to‑receiver interface, and behaviour under platform dynamics.
Installed performance
Modelled, then measured, before design freeze rather than after it.
Verification
Chamber, simulator, record‑and‑replay or live sky, with independent attendance and analysis.

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