Quick Overview

Low Noise dual band Preamplifier 112 - 170 & 218 - 512 MHz

Excl. Tax: £145.79 Incl. Tax: £174.95


Low Noise dual band Preamplifier 112 - 170 & 218 - 512 MHz

This LNA has been designed in order to improve weak signal reception on both VHF and UHF bands.
The bandpass filters are optimized for best supression of out-of-band signals and lowest insertion loss and noise figure.
The LNA uses weatherproof housing with metal baseplate with connectors and HD plastic cover that protects the
device against rain.
Supply of power is universal, i.e. two methods can be used. 1. Separate cable for DC voltage (thin coaxial cable is
recommended which adds to reliability) to the SO239 connector on the LNA baseplate, or 2. supply via the RF
coaxial cable. Both methods are equivalent.
The LNA is protected against overvoltage and against voltage spikes resulting from static discharges during

LNA-DUAL-VU-O has high linearity and high imd specs. High quality notch filters are used at the input which
supress out-of-band signals. The problematic VHF FM broadcast band, which causes overloading of receivers due
to strong BC signals, is highly supressed and therefore no other filters are needed (such as HPN-30118).
It is great for scanner and air-band enthusiasts, hams (2m&70cm bands) as well as professionals.
LNA-DUAL-VU-O is designed for receive applications only, no T/R relay is present.

The combination of the LNA-DUAL-VU-O and a double discone antenna result in an excellent active receive system
which has very few rivals.

  • Dual band Low Noise Outdoor Amplifier
  • Frequency ranges: 112 - 170 & 218 - 512 MHz (at -6dB)
  • Gain 23 dB (typ.)
  • Input/output impedance 50 Ohm
  • Input/output connectors: N
  • Power supply voltage: 12 to 14V DC
  • (max. voltage limits 11 to 20V DC)
  • Supply voltage connector: SO239
  • Current consumption: 60 mA
  • Noise figure: 3.0dB typ.

Additional Information

manufacturer DD Amtek

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