Connect four cellular antenna paths and satellite positioning through one roof-mounted assembly with Teltonika PR1KCL28. Four LTE MIMO elements cover 698–960 MHz and 1,710–2,690 MHz, with linear polarisation, 3.0 dBi gain and 50 Ω impedance. Each mobile connection terminates in an SMA male connector, allowing the four cellular paths to connect individually to the router. RUTX12 and RUTX14 compatibility makes this assembly relevant to installations using those routers where cellular connectivity and GNSS reception share a roof location. Receive GNSS signals through a dedicated element operating at 1,575.42 ± 3 MHz with right-hand circular polarisation. Its low-noise amplifier provides 28 ± 2 dB gain with a noise figure of ≤ 1.5 dB. The active GNSS connection requires 3–5 VDC and draws less than 15 mA, so the connected receiver must provide a suitable antenna supply. GNSS impedance is 50 Ω and VSWR is below 2.0; the LTE elements have VSWR below 3.0. A separate SMA male connector keeps the GNSS path distinct from the four cellular connections. Route five RG174 cables, each 3,000 mm long, from the antenna housing to the equipment location. The screw-mounted housing measures 110.0 mm in diameter and 53.0 mm high, providing a compact roof footprint for vehicle connectivity and outdoor equipment installations. UV-resistant radome material and a −40 °C to +85 °C operating range support exposed placement. The radome carries an IP65 rating that excludes the cable outlet, making outlet protection a separate installation consideration. The assembly weighs 525 ± 10 g and is RoHS compliant.