Description :

The Combo-4N Antenna is a low profile GPS active antenna system for the next generation multi-purpose GPS mobile antenna products for telematics, fleet management, navigations and AVL applications. This small print size of the antenna design does not reflect over-all performance, since the antenna itself needs no ground plane aid to deliver the L1 band small signal carrier that originates from the 24 orbiting USA satellites located thousands of miles over-head and with the ground reception power sensitivity. The active GPS antenna is also design as a standard power input voltages in range from +3Vdc to +12Vdc with reverse polarity shutdown, over-current sense shutdown and an EMC power line suppression. The most important over-all design concept of the active antenna is the complete protections of the host sensitive GPS receiver made from any manufacturer that it serve and can also be destroy or de-grade using an improper design antenna.

Specification :

1. GPS antenna: (1) Center frequency: 1575.42±1.023 MHz. (2) Bandwidth: 10 MHz @ -3dB point. (3) Polarization: R.H.C.P. (4) Axial ratio: 2.0 dB max. (5) Over-current: thermal over-current shutdown >+150degreeC. (6) RF noise protection: RF protection(10watt), nano-second spark-gap. (7) Coax cable: RG-174U double shielded 5m, Low Loss 0.7dB/m. 2. LNA (1)Over-all gain: 28db (typical including 4db cable loss & filters). (2)Over-all NF: <1.8db @fo, 2db max. (3)Output V.S.W.R: 1.5 dB max. (4)LNA characteristic: K=>1 un-conditionally stable. (5)Voltage: 3.0~12V. (6)Current: 11~13mA±2. 3. GSM Antenna: (1)Frequency: GSM: 900~1800 MHZ. (2)VSWR: 1.5MAX. (3) Impedence: 50Ω. (4) Polarization: R.H.C.P. (5) Dimension: 55.15x12mm. (6) Color: black. (7) Gain: 3dBi. (8) Connector（GPS or GSM）options: MMCX , MCX , SMA , BNC , SMB. (9) Power handling capacity: 40W. (10) Mounting: Double side tape.

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  GPS And GSM Antennas
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  GSM Antennas