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GPS LNA Microwave Amplifiers

GPS LNA
Presentation
(1.1 MB PDF)

Amplifier Group Presentation
(1.4 MB PDF)

Spectrum offers a complete line of GPS Filtered 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.

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

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 at 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.

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