LNA Power Output

NovAtel GPS receivers are capable of sourcing GPS antenna LNA power directly via the center conductor of the RF cable that connects these two pieces of hardware together. Here is a list of output voltage levels and maximum current sourcing capabilities of various NovAtel GPS hardware: PC1/OEM1: Signals: L1 only Output Voltage: 4.0 to 5.0 VDC Source Current: 10 to 25 mA, current limits at 35 mA PC2/OEM2: Signals: L1 only Output Voltage: 4.0 to 5.0 VDC Source Current: 10 to 25 mA, current limits at 35 mA OEM3: Signals: L1 & L2 Output Voltage: 4.25 to 5.25 VDC Source Current: 0 to 90 mA, current limits at 120 mA +/- 30 mA OEM3-based GPS+GLONASS Hybrid: Signals: L1 & GLONASS Output Voltage: 4.25 to 5.25 VDC Source Current: 0 to 90 mA, current limits at 120 mA +/- 30 mA OEM3-based Beeline 2D Attitude: Signals: L1 & L1 (two parallel L1-only RF decks) Output Voltage: 4.25 to 5.25 VDC Source Current: 0 to 90 mA, current limits at 120 mA +/- 30 mA OEM4/EURO4/OEM4-G2/OEM4-G2L: Signals: L1 & L2 Output Voltage: 4.75 to 5.10 VDC Source Current: 0 to 100 mA, current limits at 120 mA +/- 20 mA If more voltage and/or current is required to drive your GPS antenna's LNA load, then additional equipment may be required. Please refer to NovAtel's application note APN-003 "RF Equipment Selection and Installation (including extended length antenna cable runs)" for more information on this topic: http://www.novatel.ca/Documents/Bulletins/apn003.pdf