Fred in the Shed | ATS 20 (Si4732). Receiving UK CB radio @CB-RADIO-UK | Uploaded 2 years ago | Updated November 17 2022
ATS-20 AM FM USB LSB receiving UK CB radio. Buy here. https://www.banggood.com/SI4732-All-Band-Radio-FM-AM-%28MW-And-SW%29-And-SSB-%28LSB-And-USB%29-With-Antenna-Lithium-Battery-Speaker-p-1816774.html?p=I7092354530876202012&utm_campaign=FredintheShed&cur_warehouse=CN&ID=6303419 Use discount code. BG31c7c8 at checkout to receive special discount.
Antenna used is a Antron 99 with Fireup top upgrade approx 30 feet from the ground.
Full radio Features:
0.96 inch OLED display, you can see the FM band, AGC on/off, MONO according to your demands.
Support auto-hold setting function after power failure.
With the built in 3.6V, 600mAH polymer lithium battery for stable and sustainable power supplys.
Support USB recharging, delivering with type-c recharging cable.
Equipped with audio output function, support 3.5mm earphone.
Also support the 8 ohm speaker 2W output.
Antenna interface uses BNC interface and the printed circuit board retains the SI4732 package, you can replace the chip by yourselves, and the software is compatible.
With 22 commercial and ham radio bands pre configured, you can use it freely.
FM, AM (MW and SW) and SSB (LSB and USB).
Audio bandwidth filter 0.5, 1, 1.2, 2.2, 3 and 4Khz.
BFO Control.
Frequency step switch (1, 5 and 10KHz).

Tuning Specifications:
Band:
{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}, // 40 meters
{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}, // 20 meters
{SW_BAND_TYPE, 14500, 15900, 15300, 5},
{SW_BAND_TYPE, 15900, 17900, 17600, 5},
{SW_BAND_TYPE, 17900, 18300, 18100, 1}, // 17 meters
{SW_BAND_TYPE, 18300, 21900, 21200, 1}, // 15 meters
{SW_BAND_TYPE, 21900, 26200, 24940, 1}, // 12 meters
{SW_BAND_TYPE, 26200, 27900, 27500, 1}, // CB band (11 meters)
{SW_BAND_TYPE, 27900, 30000, 28400, 1}}; // 10 meters

Item size: 89 * 107 * 41mm / 3.50 * 4.21 * 1.61in
Item weight: 205g / 7.23ounce
Package size: 173 * 122 * 52mm / 6.81 * 4.80 * 2.05in
Package weight: 250g / 8.82ounce