LNA amplifier modules with SAW filter and single frequency

Features

Improved SMA female connectors (on both sides) for antenna input and radio output to solve SMA barrel disappearance problems

LNA before the SAW filter for better performance

The LNA used is a MiniCircuits PSA4-5043 +

Important: Uputronics LNAs are not suitable for use with helium miners as they do not have a TX bypass for the 868 MHz and 915 MHz model

Models

NOAA/APT 137.5 MHz

This particular model is set for use with 137.5 MHz. To block strong commercial FM signals, a high pass filter is installed before the LNA.
The LNA used provides at least 21 dB of gain at 137.5 MHz. To stop out-of-band intermodulation, a 137.5 MHz SAW bandpass filter, which has a passband of 7.6 MHz, is also present.

The insertion loss of this filter is approximately 1.4 dB.

AIS 162 MHz

This particular model is set for use with 159-163 MHz. To block strong commercial FM signals, a high pass filter is installed before the LNA.

The LNA used provides at least 20 dB of gain at 161 MHz. To stop out-of-band intermodulation, a 161 MHz SAW bandpass filter, which has a bandwidth of 7.6 MHz, is also present.

The insertion loss of this filter is about 1.4 dB.

403 MHz radiosonde

This particular model is tuned for use with 403 Mhz probe frequencies.

The LNA used provides at least 21 dB of gain at 403 MHz. To stop out-of-band intermodulation, a 403 MHz SAW bandpass filter, which has a bandwidth of 15 MHz, is also present.

The insertion loss of this filter is about 2.3 dB, which increases the overall noise figure of the unit to 0.75 dB.

"434 MHz HAB Amp

This particular model is tuned for use with 434Mhz.

The LNA used provides at least 19 dB of gain at 434 MHz. To stop out-of-band intermodulation, a 434 MHz SAW bandpass filter, which has a bandwidth of 15 MHz, is also present.

The insertion loss of this filter is about 2.3 dB, which increases the overall noise figure of the unit to 0.75 dB.

435 MHz Cubesat

This particular model is tuned for use with 430-440Mhz.

The LNA used provides at least 19 dB of gain at 435 MHz. To stop out-of-band intermodulation, a 440 MHz SAW bandpass filter, which has a bandwidth of 30 MHz, is also present.

The insertion loss of this filter is about 2.3 dB, which increases the overall noise figure of the unit to 0.75 dB.

868 MHz

This particular model is tuned for use with 868 MHz frequencies.

The LNA used provides at least 16 dB of gain at 868 MHz. To stop out-of-band intermodulation, an 868 MHz SAW bandpass filter, which has a bandwidth of 15 MHz, is also present.

The insertion loss of this filter is approximately 2.3 dB, which increases the overall noise figure of the unit to 0.75 dB.

Uputronics LNAs are not suitable for use with helium miners because they do not have a TX bypass.

915 MHz

This particular model is tuned for use with 915Mhz.

The LNA used provides at least 15 dB of gain at 915 MHz. To stop out-of-band intermodulation, a 915 MHz SAW bandpass filter, which has a bandwidth of 15 MHz, is also present.

The insertion loss of this filter is approximately 2.3 dB, which increases the overall noise figure of the unit to 0.75 dB.

Uputronics LNAs are not suitable for use with helium miners because they do not have a TX bypass.