LNA preamp VHF-UHF SDR SDR accessory LNA4ALL-285 View larger

LNA4ALL-285

New product

LNA VHF UHF preamplifier with PGA-103 + for RF and SDR application

The LNA4ALL is a pre-amplifier and a low-pass filter (LNA) with SMA female RF connectors and for RF frequencies covering all bands from 28MHZ to 2500 MHz.

It improves greatly reception performance, on VHF-UHF (up to 2.5GHz) bands, of a USB stick TNT / RTL-SDR or the HackRF One and Airspy.

Power is to build yourself via a 6V/9V by connecting simply 2 power cables or 5V with a modification on the board.

This material is no longer available, equivalent model: LNA PGA-103 50-2500Mhz F1OPA preamp.

Other model available: LNA 50-4000 Mhz preamplifier with SPF5189Z.

See also the LNA HF F1OPA version for 150KHz to 30MHz preamplifier HF bands.

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Specifications LNA4ALL PGA103+

Power supply: 6-9V DC or 5V (with modification-it-yourself)
Consumption: 18mA
Frequency range: 28MHz - 2500MHz
Receive gain: 11 to 23dB (cf. diagram)
NF: 0.75dB @ 1GHz
Amplifier: PGA-103+ (PGA103)
Impedance: 50 ohms
Antenna Connector: SMA Female
Dimension: 25x25 mm

The input and output of the antenna are tuned to 50 ohms, and there is no significant deterioration with cable TV 75 ohms also.

VERY IMPORTANT

This preamplifier LNA is highly efficient and need to be use with caution, never use near strong signal, nor transmit a signal radio nearby (FM radio station amateur radio, walkie-talkie, etc.) under penalty of "grill" your SDR receiver immediately!

How to protect the LNA from ESD?

The static discharge can damage the LNA if it is not protected and used properly.

1 - Never leave the LNA plugged permanently or placed permanently behind an antenna on the mast
2 - Disconnect the antenna and ensure proper grounding of the LNA and antenna, before reconnecting the antenna cable discharging static electricity
3 - It is also possible to add extra protection diode BAV99 welding (scratch first location) to the input of the antenna as shown in green on the following picture:

So if lightning the diode will be damaged but not the rest of the LNA card.

No LNA will be returned or exchanged due to misuse.

The warranty does not cover damage that may result from an assembly error, an incorrect antenna setting (ROS), a maximum input power not respected, a short circuit of the power supply or coaxial line and damage from electrostatic discharge.

Accessories

  • SMA Male UHF Female Adapter (SO-239)

    SMA Male UHF Female (SO-239) Adapter.

    5,00 €
    In stock
  • Pigtail SMA Male - N Female 15/50/100cm

    SMA Male to N Female Adapter. Coaxial cable RG 316 50 ohms. Available in 15cm, 50cm or 1 meter length (to choose from below).

    8,90 €
    In stock
  • Pigtail SMA Male to UHF Female

    SMA Male to UHF Female Adapter. RG 316 coaxial cable 50 ohms, about 15cm long.

    6,90 €
    In stock
  • Pigtail SMA Male - SMA Male 15/30/50/100cm

    Pigtail RF adapter SMA Male to SMA Male to connect for example a converter Ham it up to a HackRF One, or SDRPlay, and any device with a SMA female connector. Coaxial cable RG 316 50 ohms. Available in

    5,00 €
    In stock
  • LNA preamplifier for HF SDR 500 kHz to 30 MHz from F1OPA

    The LNA HF from F1OPA is a pre-amplifier and a low-pass filter (LNA), very powerful (+18dB to +20dB), with SMA Female connectors, for HF frequencies and short waves from 500 kHz to 30 MHz, with

    34,50 €
    Out of stock, available in 10-15 days
  • LNA preamp with BIAS-T for HackRF Airspy SDRPlay

    Preamplifier and LNA (low noise amplifier) specially adapted with BIAS-T for HackRF One, AirSpy, SDRPlay and RTL-SDR V3 usb stick. It highly increases the reception performance (+ 11dB to + 23dB) and

  • Adapter SMA male SMA male

    This RF adapter allows is equipped with an SMA Male connector on both sides.It allows to connect for example 2 cables or connectors in SMA female.

    4,50 €
    In stock
  • LNA & SAW filter for Inmarsat and Outernet

    This LNA and SAW filter from Nooelec is specially designed to operate on 1.5Ghz Outernet frequency band and for Inmarsat radio applications, covering from 1.50GHz to 1.58GHz. It significantly

    29,90 €
    In stock
  • Broadcast FM Band Cut filter by RTL-SDR.com

    This band-cut filter is design by RTL-SDR.com, it blocks and reject broadcast FM band between 88 to 108 MHz with over 50dB of attenuation. Insertion loss is less than 0.5 dB between 0-1 GHz, and less

    19,90 €
    In stock
  • BIAS-TEE for QO-100 or LNA 30MHz to 4GHz F1OPA

    This BT4G-based BIAS-TEE is used to power a LNA or a 10Ghz PLL LNB to receive the QO-100 / Es'Hail2 satellite.The BT4G covers the frequency bands from 30 MHz to 4 GHz. The +/- supply leads are

    16,50 €
    Out of stock, available in 10-15 days
  • LNA Wide Band 50-4000Mhz RTL-SDR

    This wide-band LNA preamp improves reception performance from 50 Mhz to 4 Ghz, it is based on SPF5189Z, with a noise factor of less than 1 dB.This LNA is designed to be powered by BIAS-T with a power

    26,00 €
    In stock
  • LNA Wide Band 50-2500Mhz amplifier F1OPA

    Wide-band LNA preamp, based on PGA-103+, to improve reception performance from 50 Mhz to 1500 Mhz, with a maximum gain of 20-24dB and a noise factor of 0.4dB.This VHF-UHF LNA offers a very good

    35,90 €
    In Stock
  • 2.4 Ghz SAW Bandpass filter for QO100

    This bandpass filter for the 2.4 Ghz (13cm) allows to reject the local oscillator and harmonics frequencies of the Up-Converter for QO-100 to get a clean signal on the satellite, with a max. input

    25,90 €
    In Stock
  • LNA preamp 50-4000 Mhz with SPF5189Z

    This SPF5189Z LNA preamp improves reception performance from 50 Mhz to 4000 Mhz, based on SPF5189Z, with a noise factor of 0.6 dB and a maximum gain of approximately 20dB.This low noise amplifier is

    9,50 €
    Out of stock, pre-order available, delivery June 5, 2015
  • Nooelec LaNA LNA preamp 20MHz - 4GHz + case + USB DC Bias-T

    Nooelec's LANA is a high-gain, 20 MHz - 4 GHz wide band LNA amplifier for SDR applications, with low power consumption and better linearity than the SPF5189Z LNA.The LaNa has 3 different power

    38,90 €
    In stock
  • BT-200 Nuand RX LNA for BladeRF 2.0 micro

    The BT-200 is a RX LNA, powered by Bias-T, to connect to the SMA RX socket of the bladeRF 2.0 micro xA4 and xA9.MMIC: TSS-53LNB+TX frequency: 500 MHz to 5 GHzConsumption: 300mWGreen LED power

    36,00 € 45,00 € -20%
    In stock
  • LNA pre-amplifier and 1090 Mhz ADS-B filter AirNav RadarBox

    This 1090 Mhz ADS-B LNA pre-amplifier and SAW filter is designed to improve reception performance and increase the number of ADS-B messages received and decoding. It incorporates an LNA and a SAW

    75,00 €
    In stock
  • 137 Mhz filter Double LNA & SAW Nooelec for NOAA

    This SawBird + filter from Nooelec is specially designed to operate on the NOAA 137 Mhz frequency band and for NOAA weather satellite reception applications.It makes it possible to significantly

    44,90 €
    In stock

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Delivery Europe & Overseas

Stock and shipped from France

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