Si4732 Full Band Radio Receiver FM AM

Product information:
Use 3.6v lithium battery
USB charging
Support audio output Support 3.5mm headphone
Support 8 ohm speakers 1w
FM output supports headphone antenna
Using BNC Antenna Interface
The pcb retains the si4735 package, the user can replace the chip by himself, and the software is compatible

Size：88x88x38mm

Features of this sketch:
1) fm, am (MW and SW) and SB (LSB and USB);
2) 0.5, 1, 1.2, 2.2, 3 and 4khz audio bandwidth filters;
3) 22 pre-configured commercial radio and ham bands;
4) bfo control; and
5) Frequency step switch (at 1, 5 and 10kHz);
bands[] = {
{Fm_band_type, 8400, 10800, 10430, 10},
{Lw_band_type, 100, 510, 300, 1}, {Mw_band_type,
520, 1720, 810, 10},
{Sw_band_type, 1720, 3500, 1900, 1}, // 160 meters
{Sw_band_type, 3500, 4500, 3700, 1}, // 80 meters
{Sw_band_type,
4500, 5500, 4850, 5},
{Sw_band_type, 5500, 6300, 6000, 5}, {Sw_band_type,
6300, 7800, 7050, 5}, //40m {Sw_band_type, 7800, 10000, 9600, 5},
{Sw_band_type, 10000, 11000, 10100, 1}, // 30 meters
{Sw_band_type, 11000, 12500, 11940, 5},
{Sw_band_type, 12500, 13900, 13600, 5}, {Sw_band_type,
13900, 14500, 14270, 1}, // 20m
{Sw_band_type, 14500, 15900, 15300, 5},
{Sw_band_type, 15900, 17900, 17600, 5},
{Sw_band_type, 17900, 18300, ??18100, 1}, // 17m
{Sw_band_type, 18300, ?? 21900, 21200, 1}, // 15m
{Sw_band_type, 21900, 26200, 24940, 1}, // 12 meters
{Sw_band_type, 26200, 27900, 27500, 1}, // cb band (11m)
{Sw_band_type, 27900, 30000, 28400, 1} //; // 10 meters

Packing list：

1 x Radio Receiver Set