Ham Radio Extra Class Practice Test 2025 - Free Extra Class License Exam Questions and Study Guide

To decode Slow Scan Television (SSTV) using Digital Radio Mondiale (DRM), no additional hardware is necessary beyond a receiver that has SSB capability and a compatible computer. This is because the DRM system is designed to efficiently encode and transmit audio and data, allowing the computer to process the digital signals directly from the receiver.

DRM uses advanced error correction and modulation techniques which enable the existing hardware to decode the SSTV signals without requiring specialized equipment. The software used on the computer is capable of interpreting the signals received through the SSB-enabled receiver, handling the decoding process that translates the digital content into visible images without needing extra components such as converters, filters, or limiters.

In contrast, the other options suggest additional hardware that is not required for this specific application. This is important to know when setting up for SSTV decoding to avoid unnecessary purchases or complications in the setup.