PRODUCT OVERVIEW
This is an low noise RF amplifier that provides excellent gain and noise figure. The gain at 100 MHz is 30 dB while the noise figure is 2.2 dB. The LNA can be used in a number of different receiver applications such as Ham Radio, TV reception, etc. The product is ideally suited as a pre-amplifier and the USB power supply means you can power it off your laptop.
The LNA allows for a range of powering options. A micro USB cable is the most convenient as it provides the required +5VDC supply. Other options are Bias Tee (see the note below) and a DC supply that can be varied over a wide range from +5 VDC to +12 VDC.
FEATURES
- Wideband LNA with 30 dB Maximum Gain between 100 kHz and 2 GHz;
- Operational from 100 kHz to 5 GHz
- LED power indicator
- SMA-F connectors
- USB powered (cable not included)
- Pads for two-pin power header
The LNA includes a place holder for a Bias Tee inductor required for remote operation. You will have to solder this yourself. Note that once you enable the Bias tee, you will have to take precautions when powering the LNA over USB as +5V will appear at the RF output. Some receivers and most filters cannot tolerate DC.
Here is a video of the LNA being used for shortwave reception
For a noise free response especially at lower frequencies, we recommend powering this amplifier with a clean, DC supply and not USB.
SPECIFICATIONS
Frequency Gain
100 kHz 18 dB
1 MHz 25 dB
10 MHz 27 dB
100 MHz 31 dB
1 GHz 24 dB
2 GHz 19 dB
3 GHz 14 dB
4 GHz 12 dB
5 GHz 10 dB
6 GHz 6 dB
Output IP3
+27 dBm
Maximum RF Input Power
+13 dBm
DC Supply Range
+5 VDC to +12 VDC
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