Search manufacturer website or ham-radio documentation repositories for "ATS-25 manual PDF" to download the official PDF.

While the factory PDF is fine, the radio community has created superior documentation. Specifically, look for the "ATS-25 User Guide - Extended Edition" compiled by D. Cripe (N4HY). This community manual adds:

Where to find it: Search "N4HY ATS-25 extended manual pdf". This is often a 45-page document compared to the factory’s 12 pages.

The telescopic whip antenna included with the radio is decent for FM and strong local AM. However, for Shortwave and SSB, you need a longwire antenna.

The ATS-25 is a portable, full-band SDR (Software Defined Radio) receiver based on the Si4732 chip, known for its 2.4-inch color touchscreen and versatile firmware like Harduino or Binns. ATS-25 User Manual PDF Links

Depending on your specific firmware version, use these official and community-hosted guides:

H-RADIO v4.16/v4.17 (Air Firmware): Most modern units use this. Harduino Official Manual (PDF). Manuals.plus Version 4.17 Guide.

ATS-25 MAX Full Band: General hardware manual covering touchscreen basics. Device.Report MAX Manual (PDF).

ATS-25X2 (Wi-Fi Version): Specific instructions for network setup. Scribd ATS-25X2 WiFi Guide. Quick Start Guide 1. Basic Operation

Powering On: Use the physical toggle switch on the rear panel. Charge via the Type-C USB port.

Tuning: Use the VFO knob for fine adjustments or tap the FREQ button on the touchscreen to enter a specific frequency directly via the digital keyboard.

Volume: Tap the volume icon on the screen or use the encoder (tuning knob) if configured for volume control. 2. Band & Mode Selection

HAM Bands: Tap the HAM button to see a list of amateur bands from 630m to 10m.

Broadcast Bands: Tap BROAD for presets covering LW, MW, SW, and FM.

Modulation: Switch between AM, LSB, USB, CW, and FM using the modulation menu.

Bandwidth: Tap the bandwidth display to cycle through filters (e.g., 1-6k for AM; 0.5-4.0k for SSB). 3. Advanced Features

ATS25 Max-Decoder Ⅱ SW radio. The one with Bluetooth audio.

You're looking for the ATS-25 radio manual in PDF format!

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

After a quick search, I found a few potential sources for the ATS-25 radio manual in PDF format: