Bring mobile connectivity, satellite positioning and Wi-Fi antenna connections to a single roof-mounted assembly with Teltonika PR1KCS28. Its SISO mobile element covers 617–960 MHz and 1,710–2,690 MHz with 3.5 dBi gain, linear polarisation and an omnidirectional radiation pattern. A separate Wi-Fi element covers 2,350–2,500 MHz with 2.5 dBi gain and the same polarisation and radiation pattern. These ranges suit installations requiring cellular access and Wi-Fi coverage from one mounting location; the Wi-Fi element serves the 2.4 GHz band. Connect the mobile and GNSS elements through their separate SMA male connectors, and connect Wi-Fi through its RP-SMA male connector. Three RG174 cables, each 3,000 mm long, provide routing distance between the roof assembly and the equipment. The GNSS element operates across 1,575–1,610 MHz with right-hand circular polarisation, a 28 dBi low-noise amplifier gain and a 1.5 dB noise figure. Its active circuitry draws less than 15 mA with a nominal supply range of 2.7–5.0 V DC. All three antenna elements have 50 Ω impedance and VSWR of no more than 1.5. Fit the assembly using its screw mount and M12 mounting thread. The ABS radome measures 80.5 mm in diameter by 15.2 mm high, weighs 215 ± 10 g and provides IP67 protection excluding the cable outlet. UV resistance and a −40 to +85 °C operating range support exposed installations. This combination suits vehicle roofs and outdoor equipment installations needing separate mobile, GNSS and Wi-Fi connections. Its defining configuration combines three antenna functions, three cable leads and a low-profile housing at one roof mounting point.