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  Filtered GPS LNA Microwave Amplifiers (GPS LNAs)
 

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Spectrum offers a complete line of Filtered GPS Low Noise Amplifiers, which are ideal for applications where higher reliability is critical. These filtered low noise amplifiers are designed to reduce out-of-band interference while achieving high dynamic range.
Amplifier Products
Low Cost Amplifiers (LCA) Filtered GPS Low Noise Amplifiers (GPS LNA) High Linearity Amplifiers Low Phase Noise Amplifiers
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Package Options:

  • Nickel plated package
  • Your choice of SMA, N, or TNC connectors
  • Coaxial or External Bias Connection
  • Bias options include 5 VDC, 5-16 VDC, and 16-32VDC
A single ceramic filter or pair of diplexed ceramic filters with 3-pole responses select only the desired GPS signals while the low noise gain stage maintains the receiving system's sensitivity

Optional L5 GPS LNA

A single ceramic filter or pair of diplexed ceramic filters with 3-pole responses select only the desired GPS signals while the low noise gain stage maintains the receiving system's sensitivity. The LNA rejects undesired signals by as much as 40 dB at 1050, 1410, and 1710 MHz.
 
GPS Band Freq (MHz) NF (dB)
L2 1217 1.53
1227 1.44
1237 1.35
L1 1565 1.83
1575 1.60
1585 1.48

Noise Figure Performance

These values include the losses of the pre-filter(s). Best dynamics range comes from low NR and high input 1dB compression point.

GPS Low Noise Amplifier (LNA)
 

Dual Band (L1 & L2) 5 - 16 VDC

Product Frequency Gain
(dB min.) 		Noise Figure
(dB typ.) 		SWR Bandwidth
(MHz min.) 		Bias DC Power
(VDC) 		Temperature Range
310-025103-011 1575.42 MHz (L1)
1227.60 MHz (L2)		 14 1.6 1.5:1 30 Coaxial Bias 5-16 -40°C to +71°C
310-025103-021 1575.42 MHz (L1)
1227.60 MHz (L2)		 14 1.6 1.5:1 30 Ext Bias, MR01 5-16 -40°C to +71°C
310-025105-011 1575.42 MHz (L1)
1227.60 MHz (L2)		 26 1.6 1.5:1 30 Coaxial Bias 5-16 -40°C to +71°C
310-025105-021 1575.42 MHz (L1)
1227.60 MHz (L2)		 26 1.6 1.5:1 30 Ext Bias, MR01 5-16 -40°C to +71°C
310-025107-011 1575.42 MHz (L1)
1227.60 MHz (L2)		 34 1.6 1.5:1 30 Coaxial Bias 5-16 -40°C to +71°C
310-025107-021 1575.42 MHz (L1)
1227.60 MHz (L2)		 34 1.6 1.5:1 30 Ext Bias, MR01 5-16 -40°C to +71°C
310-025109-011 1575.42 MHz (L1)
1227.60 MHz (L2)		 45 1.6 1.5:1 30 Coaxial Bias 5-16 -40°C to +71°C
310-025109-021 1575.42 MHz (L1)
1227.60 MHz (L2)		 45 1.6 1.5:1 30 Ext Bias, MR01 5-16 -40°C to +71°C

Dual Band (L1 & L2) 16 - 32 VDC

Product Frequency Gain
(dB min.) 		Noise Figure
(dB typ.) 		VSWR Bandwidth
(MHz min.) 		Bias DC Power
(VDC) 		Temperature Range
310-025103-012 1575.42 MHz (L1)
1227.60 MHz (L2)		 14 1.6 1.5:1 30 Coaxial Bias 16-32 -40°C to +71°C
310-025103-022 1575.42 MHz (L1)
1227.60 MHz (L2)		 14 1.6 1.5:1 30 Ext Bias, MR01 16-32 -40°C to +71°C
310-025105-012 1575.42 MHz (L1)
1227.60 MHz (L2)		 26 1.6 1.5:1 30 Coaxial Bias 16-32 -40°C to +71°C
310-025105-022 1575.42 MHz (L1)
1227.60 MHz (L2)		 26 1.6 1.5:1 30 Ext Bias, MR01 16-32 -40°C to +71°C
310-025107-012 1575.42 MHz (L1)
1227.60 MHz (L2)		 34 1.6 1.5:1 30 Coaxial Bias 16-32 -40°C to +71°C
310-025107-022 1575.42 MHz (L1)
1227.60 MHz (L2)		 34 1.6 1.5:1 30 Ext Bias, MR01 16-32 -40°C to +71°C
310-025109-012 1575.42 MHz (L1)
1227.60 MHz (L2)		 45 1.6 1.5:1 30 Coaxial Bias 16-32 -40°C to +71°C
310-025109-022 1575.42 MHz (L1)
1227.60 MHz (L2)		 45 1.6 1.5:1 30 Ext Bias, MR01 16-32 -40°C to +71°C

Single Band (L1) 5 - 16 VDC

Product Frequency Gain
(dB min.) 		Noise Figure
(dB typ.) 		VSWR Bandwidth
(MHz min.) 		Bias DC Power
(VDC) 		Temperature Range
310-024105-011 1575.42 MHz (L1) 26 1.6 1.5:1 30 Coaxial Bias 5-16 -40°C to +71°C
310-024105-021 1575.42 MHz (L1) 26 1.6 1.5:1 30 Ext Bias, MR01 5-16 -40°C to +71°C
310-024107-021 1575.42 MHz (L1) 34 1.6 1.5:1 30 Ext Bias, MR01 5-16 -40°C to +71°C
310-024109-011 1575.42 MHz (L1) 45 1.6 1.5:1 30 Coaxial Bias 5-16 -40°C to +71°C

Single Band (L1) 16 - 32 VDC

Product Frequency Gain
(dB min.) 		Noise Figure
(dB typ.) 		VSWR Bandwidth
(MHz min.) 		Bias DC Power
(VDC) 		Temperature Range
310-024103-022 1575.42 MHz (L1) 14 1.6 1.5:1 30 Ext Bias, MR01 16-32 -40°C to +71°C
Note: Ambient (Case Temperature) is defined with the amplifier mounted on an infinite heat sink.