Ats-20 Radio Manual: ((top))

Tune to an amateur radio band (e.g., the 40-meter band around 7.000 MHz to 7.300 MHz).

: Switches between modulation types: AM , LSB (Lower Sideband), USB (Upper Sideband), and FM .

Internal 3.6V 800–850 mAh lithium battery, providing roughly 6–8 hours of runtime. Audio: Built-in 1W–2W speaker and 3.5mm headphone jack.

The ATS‑20 can demodulate SSB and CW by using the . On most units: ats-20 radio manual

Where the ATS-20 truly shines for the advanced user is in the deep configuration options available via its . This is a feature you'll find in custom firmwares like ATS_EX, and it's vital for getting the most out of the Si4732 chip.

Familiarizing yourself with the physical layout ensures a smooth operating experience. Front Panel Controls

Maya used the manual to scan for weather alerts, Red Cross updates, and even a neighbor two miles away transmitting on a ham HT. The ATS-20’s hidden features—memory slots, squelch calibration, battery voltage monitoring—became tools instead of mysteries. Tune to an amateur radio band (e

A toggle switch or button used to turn the unit completely on or off.

BNC connector for a telescopic whip antenna or external antenna (highly recommended for shortwave). 4. Quick Fixes & Tips

This is a comprehensive, deep-dive manual for the generic . Audio: Built-in 1W–2W speaker and 3

Built-in 8-ohm speaker and 3.5mm stereo headphone jack

The original factory firmware (version 1.1.5) is functional but basic. Installing community‑developed firmware (such as ATS‑EX or the PU2CLR‑based versions) many additional features: more intuitive band switching, finer tuning steps, improved AM/FM seek logic, and a much cleaner user interface.

This determines how far the frequency jumps when you turn the knob.

Ensure the antenna is long enough; a 20-meter wire is recommended for effective Shortwave reception.