Preamplifier for radiosondes from 400 to 406MHz
chevron_left chevron_right

Preamplifier for radiosondes from 400 to 406MHz

Low noise figure coaxial preamplifier with SAW input filter. Can be powered directly from the TTGO module or SDR key (subject to minor modification). Perfect for amplifying the signals of radiosondes such as the Vaisala RS-41. You can also use it with the SDR key and the home antenna.

€57.00 (VAT incl.) €57.00 (VAT excl.)
VAT included
check In Stock

We ship worldwide, please send us an email indicating your full address (outside EU) to give you exact shipment costs. Send an email to


 Field of use :

INNOVATIVE miniaturized coaxial preamplifier Ultra Low Noise for radio frequency frequencies from 400 to 406MHz with SAW filter input and bias-tee power circuit.

Perfect for amplifying the weak signals of the radio sensors. You can connect it directly to the TTGO module or directly to the SDR key.

Thanks to the input SAW filter with a bandwidth of only 7 MHz, it is possible to eliminate any frequency outside the 400 and 406 MHz. Excellent for eliminating the problems of desensitization and intermodulation caused by telephone cells, TV and radio broadcasters.

Can be powered via bias tee directly from the TTGO or SDR key (subject to minor modification)./p>

 Innovation :

100% made in Italy

Input SAW 7 MHz BW filter.

Bias Tee.

Support in milled and turned aluminum in anticorodal 6060 aluminum alloy.


High quality radio-side male SMA connector

Antenna side SMA female connector

 Materials :

Cilindrical body made in alluminium anticorodal alloy 6060.

 Technical Features:

Supply : 5V

Curent : 80mA

Impedence : 50Ohm

Amplification module: PGA-103 +

Gain : +20dB

OIP3 : +29dBm

Overall noise floor: 1.5dB

SAW filter with 403.5MHz band center (BW 7 MHz)

Data sheet

Data sheet
Alluminium anticorodal alloy

You might also like

Customers who bought this product also bought:

chat Comments (0)