An apparatus comprising: a Global Positioning System, GPS, phased array comprising a plurality of digital beam forming elements, DBFEs, wherein at least one of the DBFEs comprises: an antenna configured to transmit a GPS signal; a radio frequency, RF, electronics section connected to the antenna; and a digital electronics section connected to the RF electronics section; characterized in that: the RF electronics section comprises: a plurality of digital amplifiers (530A, 530B, 530C); a plurality of filters (540, 550, 560) connected directly to the plurality of digital amplifiers, and an analog combiner connected directly to at least one of the plurality of filters; the digital electronics section comprises a digital application-specific integrated circuit, ASIC, and a digital multiplexer connected to the ASIC, wherein the multiplexer receives a plurality of inputs from the ASIC and transmits a plurality of multiplexed signals to the plurality of digital amplifiers, the plurality of digital amplifiers being directly connected to the digital multiplexer via a plurality of connections (680A, 680B, 680C); the plurality of digital amplifiers transmitting the plurality of multiplexed signals to the plurality of filters wherein the filters are configured to convert the plurality of multiplexed signals to a plurality of different frequency bands; and the combiner receives the plurality of different frequency bands and frequency multiplexes the plurality of different frequency bands onto a single transmission line for transmission over the antenna. a Global Positioning System, GPS, phased array comprising a plurality of digital beam forming elements, DBFEs, wherein at least one of the DBFEs comprises: an antenna configured to transmit a GPS signal; a radio frequency, RF, electronics section connected to the antenna; and a digital electronics section connected to the RF electronics section; characterized in that: the RF electronics section comprises: a plurality of digital amplifiers (530A, 530B, 530C); a plurality of filters (540, 550, 560) connected directly to the plurality of digital amplifiers, and an analog combiner connected directly to at least one of the plurality of filters; the digital electronics section comprises a digital application-specific integrated circuit, ASIC, and a digital multiplexer connected to the ASIC, wherein the multiplexer receives a plurality of inputs from the ASIC and transmits a plurality of multiplexed signals to the plurality of digital amplifiers, the plurality of digital amplifiers being directly connected to the digital multiplexer via a plurality of connections (680A, 680B, 680C); an antenna configured to transmit a GPS signal; a radio frequency, RF, electronics section connected to the antenna; and a digital electronics section connected to the RF electronics section; the RF electronics section comprises: a plurality of digital amplifiers (530A, 530B, 530C); a plurality of filters (540, 550, 560) connected directly to the plurality of digital amplifiers, and an analog combiner connected directly to at least one of the plurality of filters; the digital electronics section comprises a digital application-specific integrated circuit, ASIC, and a digital multiplexer connected to the ASIC, wherein the multiplexer receives a plurality of inputs from the ASIC and transmits a plurality of multiplexed signals to the plurality of digital amplifiers, the plurality of digital amplifiers being directly connected to the digital multiplexer via a plurality of connections (680A, 680B, 680C); a plurality of digital amplifiers (530A, 530B, 530C); a plurality of filters (540, 550, 560) connected directly to the plurality of digital amplifiers, and an analog combiner connected directly to at least one of the plurality of filters; the digital electronics section comprises a digital application-specific integrated circuit, ASIC, and a digital multiplexer connected to the ASIC, wherein the multiplexer receives a plurality of inputs from the ASIC and transmits a plurality of multiplexed signals to the plurality of digital amplifiers, the plurality of digital amplifiers being directly connected to the digital multiplexer via a plurality of connections (680A, 680B, 680C); the plurality of digital amplifiers transmitting the plurality of multiplexed signals to the plurality of filters wherein the filters are configured to convert the plurality of multiplexed signals to a plurality of different frequency bands; and the combiner receives the plurality of different frequency bands and frequency multiplexes the plurality of different frequency bands onto a single transmission line for transmission over the antenna.