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Antenna Low Noise Amplifier/s (LNA) is/are used to enhance the sensitivity of radio receivers, modems or TV sets. They do so by lowering the overall Noise Figure of the receiving system. LNAs are also used to overcome the loss of a long cable. To accomplish this, the Low Noise Amplifier is connected directly to the antenna, before the long cable. When used for this purpose, the LNA is often called an Antenna Preamplifier, as its primary objective is to overcome downstream transmission line losses.

LNAs are active devices, which means they require power to operate. Usually, power is supplied as a Direct Current (DC) input on the side; however, Antenna Preamplifiers often share the same Coaxial Cable connection for DC power and the Radio Frequency output signal to reduce the count of long cables and connections. All of our antenna amplifiers follow this strategy, they accept their power from the same coaxial cable used to deliver the signals. To inject the DC power into the common coaxial cable, a Bias Tee is often used. Many commercial and military radios, however, support this capability and do not require the use of an external Bias Tee. Alternatively, for some of our LNAs, power may be applied directly to the preamplifier. Please review power requirements within the description and/or the Technical Specifications of the particular LNA of interest.

Some of our LNAs are intelligent and/or include an internal switch, so they can support bidirectional signal flow (Transmit & Receive). Other LNAs featured in this section include filters and are often used as an SDR Front End, to improve the performance of Software Defined Radios, which is generally poor due to their generalized design.

All Low Noise Antenna Amplifier products in this catalog are designed and manufactured at our facility. We can customize or provide LNAs with specific requirements outside the offerings shown below. Call us at 954-345-5000 for your custom applications and requirements.

Low Noise Amplifiers

Products 1-10 of 10
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VHF Aviation Low Noise Amplifier and Filter
Price: $185.24
Availability: Approx 7 days
Item #: LNAU-0122-648 -

    VHF Aviation Band Preamplifier and Filter description Airband Preamplifier and Filter, model LNAU-0122-648, is a 118-136 MHz LNA and Filter combined into a single device. It was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly where there is a high density of signals in close proximity. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of frequencies with a few components. The LNAU-0122-648 provides the signal...

    Weather Satellite Low Noise Amplifier and Filter
    Price: $184.24
    Availability: Approx 3-4 Weeks
    Item #: LNAU-0137-648 -

      APT Weather Satellite Amplifier and Filter description APT Weather Satellite Amplifier and Filter, model LNAU-0137-648, is a 137 MHz LNA and Filter combined into a single device. It was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly where there is a high density of signals in close proximity. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of frequencies with a few components. The LNAU-0137-648 provides the...

      Amateur Radio 2 meter Low Noise Amplifier and Filter
      Price: $185.24
      Availability: Approx 3-4 Weeks
      Item #: LNAU-0146-648 -

        Amateur Radio 2m Preamplifier and Filter description Amateur Radio 2m Preamplifier and Filter, model LNAU-0146-648, is a 2 meter (144-148 MHz) LNA and Filter combined into a single device. It was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly where there is a high density of signals in close proximity. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of frequencies with a few components. The LNAU-0146-648...

        UHF Satcom Low Noise Amplifier and Filter
        Price: $185.24
        Availability: Approx 3-4 Weeks
        Item #: LNAU-0255-648 -

          UHF Satcom Preamplifier and Filter description UHF Satcom Preamplifier and Filter, model LNAU-0255-648, is designed to cover the Downlink band of UFO and Legacy MUOS payload. NOTE: our product LNAU-0370-648 is dedicated to the new MUOS payload downlink. This Preamp was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly absent prior signal conditioning. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of...

          UHF MUOS Satcom Low Noise Amplifier and Filter
          Price: $198.24
          Availability: Approx 6-8 weeks
          Item #: LNAU-0370-648 -

            UHF MUOS Satcom Preamplifier and Filter description UHF MUOS WCDMA Satcom Preamplifier and Filter, model LNAU-0370-648, is designed to cover the Downlink band of the new WCDMA MUOS payload. This Preamp was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly absent prior signal conditioning. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of frequencies with a few components. The LNAU-0370-648 provides the signal...

            UHF Amateur Radio Satellite Low Noise Amplifier and Filter
            Price: $198.24
            Availability: No Stock - In our manufacturing queue
            Item #: LNAU-0436-648 -

              UHF Amateur Radio Satellite Amplifier and Filter description UHF Amateur Radio Satellite Amplifier and Filter, model LNAU-0436-648, is a 436 MHz LNA and Filter combined into a single device. It provides the signal conditioning needed to improve UHF Ham Satellite downlink signals: it does so by filtering the signals twice, by adding 16 dB of gain (40 times magnification), and providing a low Noise Figure of 1.5 dB to the receiving system. The output filter is very sharp, completely removing...

              Dual Band ADS-B Low Noise Amplifier and Filter
              New!
              Price: $185.24
              Availability: Approx 6-8 weeks
              Item #: LNAU-1030-648 -

                Dual Band ADS-B Preamplifier and Filter description ADS-B Preamplifier and Filter (Automatic Dependent Surveillance–Broadcast), model LNAU-1030-648, is a 978 MHz and 1090 MHz LNA and Filter combined into a single device. It was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly where there is a high density of signals in close proximity. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of frequencies with a few...

                Smart UHF SATCOM Amplifier, Low Noise (LNA) uhf satcom amplifier, uhf satcom lna, satcom lna, satcom low noise amplifier, uhf low noise amplifier, dama amplifier, uhf dama lna, dama lna, tacsat lna, tacsat amplifier, military satcom lna, military satcom amplifier, dama booster, uhf satcom booster, military satcom booster
                Price: $1,024.23
                Availability: Approx 3-4 Weeks
                Item #: LNA-3000-S581 -

                  LNA-3000-S581 Low Noise Amplifier Description Simplex, Half-Duplex, DAMA and IW signals (TDD) compatible Smart Booster for UHF applications. It substantially improves UHF Satcom downlink signals by an effective 7-15 dB, depending on the transceiver or radio used. It will also enhance LOS (Line of Sight) Simplex and Half-Duplex communications by the same factor above. Custom versions available covering other frequency ranges.   Key features of this LNA Small and...

                  Custom-Tuned Low Noise Amplifier and Filter
                  Price: $382.24
                  Availability: Approx 3-4 Weeks
                  Item #: LNAU-0150-648-CF -

                    Custom VHF Preamplifier and Filter description User specified Custom VHF Preamplifier (LNA) and Filter, model LNAU-0150-648-CF, is a VHF LNA and Filter combined into a single device. It was designed with Software Defined Receivers (SDRs) in mind, which are notorious for performing poorly where there is a high density of signals in close proximity. This is particularly true of low-cost USB SDR dongles, which cover a wide spectrum of frequencies with a few components. The LNAU-0150-648-CF...

                    GPS Low Noise Amplifier
                    Price: $167.24
                    Availability: Approx 6-8 weeks
                    Item #: LNA-1575-349 -

                      LNA-1575-349, RF rugged GPS L1 Booster, consisting of a +8 dB gain Low Noise Amplifier with a built-in sharp Filter and SMA Female connectors. LNA power may be provided through the RF Output SMA connector, or through a DC power input SMA connector. It is very tolerant of wide voltage variations and DC input voltage range. Minimum supply voltage for nominal operation is +5.5 VDC. Operation at lower voltages gracefully derates performance of the LNA. The combination of a high IP3 and P1dB, tied...