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

LNA4ALL-285

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LNA preamp VHF-UHF SDR

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.

The LNA4ALL can also be powered directly by the SMA female connector (input) connected to HackRF One or Airspy (with changing the card).

See also the LNA4HF version for 150KHz to 30MHz preamplifier HF bands.

More details

39,90 € tax incl.

In stock

Order it before 10:00 of demain and receive it between Friday 4th December and Saturday 5th December with Chronopost Samedi

More info

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.

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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 €
    Out of 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

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  • 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

    44,90 €
    Out of stock
  • 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 €
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  • 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 €
    In Stock
  • 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 €
    Out of stock, available in 10-15 days
  • 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 €
    In stock
  • Amplificateur 2.4 Ghz 30W pour QO-100 PowerBlast 30 E-REON

    PowerBlast 30 2.4 Ghz 30W amplifier, LDMOS semiconductor, compatible for amateur radio activities on the QO-100 satellite.Operates with a 32V power supply and an input power of 400 mW (26 dBm) for a

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