Outdoor VHF preamplifier with 100W VOX circuit
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Outdoor VHF preamplifier with 100W VOX circuit

VHF Preamplifier for 144MHz band (2 meters) with integrated VOX circuit, bias tee and coaxial relay on board able to work without any external accessory up to 100W. Perfect for satellite use, contest, right and eme. 88-108 MHz notch filter in input. Low noise figure. Circuit designed with components of the latest generations.

€197.00
VAT included
 Last items in stock
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 Field of use :

Preamplifier with integrated VOX circuit, coaxile relays and bias tee on board. It can work up to 100W and performs TX to RX switching automatically.

Ultra Low Noise INNOVATIVE Preamplifier available for the 2 meter band. Low noise figure (type 0.35dB with coaxial relay active).

Thanks to the notch filter present at the input it is possible to attenuate the broadcasting from 88 to 108MHz ..

It can be powered, as well as by the passing capacitor, also through BIAS TEE with a voltage of 9 to 15V and a maximum absorption current of 130mA .

 Uniqueness:

Coaxial relays on board up to 100W of transit

INTEGRATED VOX circuit

Supply via Bias tees with voltage from 9 to 15V

Ultra low noise at 144MHz ( typ. 0,35dB )

Output pass band filter

Tunable input 88 -108 MHz notch filter

 Connectors :

High quality connectors. 

50 Ohm input/output with N female

Supply : Bias tee or via SO239

 Materials:

Tin box with clamping brackets with mast up to 60mm ..

ABS casing

  Technical Features :

Power supply: 9-13.8V

Max Input power : 100W

Minimum relay switching power : 500mW

Current: 137mA

Impendance: 50Ohm

Gain: +24dB

OIP3 : +29dBm

Noise figure: circa 0,35dB

 Measurement and graphs :

Measurement of the noise and gain figure performed by Rohde&Schwarz mod. ZNL3 calibrato

NOISECOM calibrated head model NC346B OPTION1

Misura del NF e guadagno del preamplificatore VHF 144MHz JG

Preamplifier 144MHz

JG-ULNA2VOX-E

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