Componentes discretos Nvarcher AM FM Kit eletrônico de onda média/FM de duas bandas 87-108MHz

       Fully discrete components Medium wave/FM two band radio kit

This two-band radio uses a classic circuit with fully discrete components and optimises the circuit according to the actual commissioning and relevant performance indicators, improving the frequency coverage and high and low end tracking of the unit, making the whole frequency band track evenly and improving sensitivity significantly. In particular, this PCB circuit board is after repeated testing and design, in nearly 10 times the test design of the preferred final design scheme, the whole circuit in the FM, amplitude modulation in the wave, amplifier 3 circuits, each part of the independent power supply and independent ground, in strict accordance with the current flow and ground return flow design circuit board, to prevent mutual interference and self-excitation of each circuit, so that the performance of its various parts of the circuit to achieve.

Main performance indicators


Frequency range: FM 87-108MHz Medium wave 535-1605KHz 

Sensitivity: FM less than 30uV Medium wave less than 1 mV/m

Selectivity: FM >16dB MW >20dB

Output power: 500 mW


    Static current: IF 6 Ma FM 12 mA