Hoverfly Elements Mosaic H (dual-antenna GNSS board)

Hoverfly Elements GNSS board built on the Septentrio mosaic-H receiver, from the revision-controlled datasheet. Dual-antenna moving-baseline heading, sub-degree with pitch or roll, beside RTK positioning. Centimetre-level RTK: 0.6 cm + 0.5 ppm horizontal, 1 cm + 1 ppm vertical. Maximum update rate 100.0 Hz. SMA antenna connection with 3.0-5.5 V bias, 3.3 VDC input, 2 UART (LVTTL up to 4 Mbps), USB 2.0 HS and 2 user-programmable GPIO. Power 0.6 W typical. grade is `hardened` on published evidence rather than marketing tone: the datasheet cites MIL-STD-810G qualification and a -40 C operating floor. chip_generation is `other` because the registry's list names u-blox and Unicore parts and Septentrio is neither - it is not an unknown. protocol records NMEA 0183, which the board outputs; it ALSO speaks Septentrio Binary Format and RTCM v2/v3, and the single-valued field cannot say so. constellations records the four the registry offers; the receiver additionally tracks QZSS, and the X5 also NavIC and L-band. WEIGHT IS THE DATASHEET FIGURE, NOT THE STOREFRONT'S: the shop reports 22.4 g as a rounded shipping weight, and the two disagree. Septentrio AIM+ anti-jamming and anti-spoofing throughout. size_classes declared as all five and flagged estimated, per the standing rule (Stephan, 2026-08-02 - declare all five, narrow only on evidence). Nothing recorded about this part rules a size class out. Hoverfly's product pages and datasheets make NO compliance claim at all - zero mentions of NDAA or Blue UAS across the entire Elements catalogue. The claim exists only in the June 2026 launch release, so the cert is recorded as `declared` against THAT url rather than the shop, because the press release is what actually made the claim. Nothing here is on the DIU Blue UAS Framework.

Hoverfly Elements Hoverfly Elements Mosaic H (dual-antenna GNSS board); Septentrio mosaic-H receiver. Vendor-declared NDAA via the launch release only.