CHELTON Active GPS (L1 & L2) Antenna TSO Compliant Key features: ■ Active GPS Antenna ■ TSO-C190, MSO-C144 and WAAS compliant ■ M-Code The 20-2041 active GPS antenna operates in the GPS L1 and L2 bands. The antenna is certified to military and civil operational performance standards, including WAAS operation. The antenna operates with hemispherical coverage with Right Hand Circular Polarisation (RHCP) reception, excellent symmetry and cross-polar performance. The low noise Antenna Electronics (AE) amplifies signals in the two GPS bands (separately for maximum performance), while rejecting out-ofband signals. The AE also incorporates a limiter circuit protection from high power in-band signals. Power is applied to the AE on the centre conductor of the RF connector. The minimum AE gain is 26.5 dB. The antenna element and AE are housed within a high performance shell which is sealed to an aluminium enclosure/baseplate. The shell provides protection against rain, ice, fluid contamination and lightning. ELECTRICAL Frequency Range L1: 1575.42 MHz ± 12 MHz L2: 1227.60 MHz ± 12 MHz Primary Power 4.5 V to 14.4 V, 60 mA maximum Polarisation Predominantly RHCP (Axial Ratio < 3 dB on boresight.) Impedance 50 ohm (nominal) (Return Loss) MECHANICAL Height 27 mm (1.06") Mounting 4 holes fixed location MOPS - Active Airborne RTCA DO-301 Global Navigation Satellite System (GNSS) Antenna MOPS - WAAS RTCA DO-229 Direct Lightning EUROCAE ED-84 The Chelton Centre, Fourth Avenue, Marlow, Buckinghamshire, SL7 1TF, UK T: +44 (0)1628 472072 E: [email protected] W: chelton.com Chelton Limited has a policy of continuous development and stress that the information provided is a guide only and does not constitute an offer or contract or part thereof. Whilst every effort is made to ensure the accuracy of the information contained in this Data Sheet, no responsibility can be accepted for any errors or omissions. The copyright of antenna designs and images is copyright protected and owned by Chelton Limited. ©Chelton Limited.