Low Noise Pre-Amplifiers

Shield Level / Pathloss Equipment

The 310-010152-002 Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.

To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna.  A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.  

The 10 GHz signal is amplified, travels through the coax cable and then is applied to the Pre-Amplifier at the RF input connector.   Using this configuration, the Pre-Amplifier can be interfaced to the 10 GHz test antenna with cables having insertion loss as high as 20 dB without significantly degrading the overall system sensitivity.

​Low noise amplifiers are available with N-type female connectors (820-020005-001) or SMA jacks (310-010091-001).

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310-010152-002 Pre Amp

310-010152-002	9.5 - 10.5 GHz
Gain	23—28 dB 24 dB typical
Input and Output VSWR	2.5:1 max
Noise Figure	3.0 dB typical 3.8 dB max
Output P1dB	​+10 dBm
Bias Supply	11.4V at 200mA max
Bias Fuse	500mA (5x20mm, fast acting)
​Operating Temperature	​0 to + 40 degrees Centigrade
Operating Humidity	95% relative humidity, noncondensing
​Power Supply	110/220 VAC (auto-adjusting), ​48–63 Hz, 15 watts
​Supply Fuse	8.37” x 1.75” x 10.75” (W x H x D)
​Weight	2.5 pounds nominal
​RF Connectors	​N-Type Female

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820-020005-001 Low Noise Amp

820-020005-001 Low Noise Amplifier	9.5 - 10.5 GHz
Gain	25—30 dB 27 dB typical
Input VSWR	2.2:1 max
Noise Figure	2.0 dB max
Output P1dB	​+10 dBm
Supply Power	11.0 - 16.0V at 80mA, Powered through ​RF output connector
RF Connectors	N-Type Female

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310-010091-001 Low Noise Amp

310-010091-001 Low Noise Amplifier	9.5 - 10.5 GHz
Gain	24—29 dB 26 dB typical
Input VSWR	2.2:1 max
Noise Figure	2.0 dB max
Output P1dB	​+8 dBm
Supply Power	10.0 - 15.0V at 80mA, Powered through ​RF output connector
RF Connectors	SMA Female (jack)

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PDF Datasheets for Low Noise Pre-Amplifiers

praxsym-datasheet-310-010091-001_amplifier_datasheet.pdf
File Size:	57 kb
File Type:	pdf

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praxsym-datasheet-310-010152-002_preamp_datasheet.pdf
File Size:	60 kb
File Type:	pdf

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praxsym-datasheet-820-020005-001-2_preamp_datasheet.pdf
File Size:	63 kb
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