

PreAmp 144 MHz

I managed to get the PreAmp performing very good and stable. The gain turned out to be even higher compared to the prototype and was measured at 24dB
post 06 Oct 2024
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160 Meter preamplifier
KD9SV Products have been helping enthusiasts get the most from their Low Band receiving antenna systems for over 25 years
A 21-30 MHz low noise amplifier
Design of a preamplifier for the "deaf" HF receiver. When you need extra sensitivity for 15, 12 and 10 meter operation - for example for amateur satellites
A High-End UHF Preamp for the VHF/UHF Dongle
I decided to build a smaller preamplifier for UHF 430-440Mhz and to add a sharp filter at its output, most likely an interdigital filter
27-28 MHz Band Antenna Pre-Ampilfier
a simple & effective antenna pre-amp for 10m. Band (28-29.7 MHz). However, this circuit was mainly realised for AO-7 Satellite
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KD9SV Products have been helping enthusiasts get the most from their Low Band receiving antenna systems for over 25 years
Design of a preamplifier for the "deaf" HF receiver. When you need extra sensitivity for 15, 12 and 10 meter operation - for example for amateur satellites
I decided to build a smaller preamplifier for UHF 430-440Mhz and to add a sharp filter at its output, most likely an interdigital filter
a simple & effective antenna pre-amp for 10m. Band (28-29.7 MHz). However, this circuit was mainly realised for AO-7 Satellite