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Russia has started local assembly of 32-element CRPA antennas for Geran-4 attack drones at an Alabuga facility in Tatarstan, marking a strategic shift toward domestic production of drone navigation components under international sanctions pressure.
What's happening
- A 32-element CRPA antenna recovered from a downed Geran-4 drone shows signs of local Russian production, including rough metal finishing and ALB factory markings stamped directly onto the casing.
- The antenna mirrors Chinese Harxon products, featuring dual L1/L2 band capability for GPS/GLONASS signal reception with jamming resistance, with 16 elements per band for enhanced interference rejection.
- Russia previously sourced multi-element antennas from Chinese supplier Harxon, which fell under international sanctions after the relationship became public, forcing the company to dismiss employees involved with Russia.
- The transition involves screwdriver-style assembly in Tatarstan following a pattern of test batches purchased on marketplaces followed by licensed production runs.
Why it matters
- Domestic CRPA antenna production reduces Russian drone dependence on Chinese imports and sanctions-vulnerable supply chains, enabling sustained Geran-4 production rates and operational capability.
- 32-element antennas with dual-band L1/L2 support provide stronger jamming resistance than single-band alternatives, improving drone navigation reliability in contested electromagnetic environments.
- Localized assembly in Alabuga demonstrates Russia's investment in critical drone component manufacturing capacity, signaling intent to maintain strike drone operations despite international restrictions.
- Loss of Harxon as a supplier created incentive for Russia to develop indigenous production, reducing vulnerability to future sanctions on specific component suppliers.
Going deeper
- CRPA antennas protect satellite navigation from electronic jamming by using multiple antenna elements and digital processors to analyze and block interference sources, with each element adding resistance to one jamming source.
- The L1 band operates at approximately 1,575 MHz for primary civilian and military satellite navigation; the L2 band operates at approximately 1,227 MHz for encrypted military signals.
- Single-band L1 CRPA antennas remain most compact and cost-effective for drone and missile applications, but dual-band designs like the recovered antenna offer stronger protection for high-value platforms.
- The factory marking ALB directly stamped onto the antenna casing indicates production at the Alabuga facility rather than simple import and repackaging.
Source: militarnyi.com · Oct 10, 2026 · Drafted with Claude, reviewed by Industrial Base Alpha.
