Ats-25 Radio Manual Pdf

It also boasts a , a built-in battery, and a metal shell that provides better shielding compared to its predecessor. 2. Key Features and Specifications

Slowly rotate the tuning knob until the human voice sounds natural rather than high-pitched or heavily distorted ("Donald Duck" effect). Customizing Settings and WiFi

Ensure you are listening during the evening or night. Shortwave propagation relies on the ionosphere, which changes from day to night. Also, make sure you are in SSB mode if listening to amateur radio.

Sets the frequency increment when turning the rotary encoder knob (choices range from 1 kHz up to 100 kHz, or down to 10 Hz for precise SSB tuning).

Unlike traditional radios, the ATS-25 uses an Si4732 DSP chip. The manual contains a crucial section explaining that you are listening to a “digital waterfall” processed through software. This means you must adjust the manually—there is no automatic gain control (AGC) that works like a classic shortwave portable. New users who skip the manual often complain of "dead bands" when they simply have the RF gain turned too low. ats-25 radio manual pdf

This specific manual is available online from Manuals.plus.

: High-end versions (like the Max-Decoder) can decode digital modes including FT8, FT4, RTTY, and Morse code .

Don't just stick to FM. Use the menu to jump to Amateur Radio frequencies (like 40m or 20m).

: If you hear a "Donald Duck" chirping sound on shortwave, switch to USB or LSB and use the fine-tuning knob to clarify the voice. It also boasts a , a built-in battery,

: Covers FM (64–108 MHz), LW (153–500 kHz), MW (520–1710 kHz), and SW (1.73–30 MHz).

Getting started with the ATS-25 is straightforward, but navigating the dual interface (touch screen + rotary encoder) takes a bit of practice. Powering On and Off

The ATS-25 is a popular amateur radio transceiver, and having the manual can be very helpful for operation, troubleshooting, and configuration.

Many ATS-25 variants utilize an ESP32 controller, allowing users to flash custom community firmware (such as the popular Russian community firmware mods) for extra features like a waterfall display or Bluetooth audio. Connect the ATS-25 to a PC via a data-capable USB-C cable. Customizing Settings and WiFi Ensure you are listening

Many ATS-25 variants feature built-in WiFi. This allows the radio to connect to your local network to synchronize the internal clock via NTP (Network Time Protocol) or display extra data such as ham radio callsigns directly on screen during reception. Firmware Updates

Built-in speaker (supports 3.5mm stereo headphones) Power Supply: Built-in 3.7V / 2000mAh lithium battery Charging Port: USB Type-C (5V charging input) Antenna Interface: BNC (50 Ohm impedance) 2. Layout and Physical Controls

A common question in forums is, “Why is my ATS-25 so noisy?” The manual explains that the radio defaults to NR OFF. You must navigate to the DSP menu and set NR to 4 or 5 for SSB (Single Sideband) and NB to ON for pulse noise (ignition systems, power lines).

Tap the (Beat Frequency Oscillator) function. Use the rotary encoder to fine-tune the pitch until the human voice sounds clear and natural instead of robotic. Bandwidth (BW) Selection