*Question E2B09:
What kind of receiver can be used to receive and decode SSTV using the Digital Radio Mondiale (DRM) protocol?*  

*Correct Answer is  D: SSB*  

### AI Response: (may contain errors)  

To receive and decode Slow Scan Television (SSTV) using the Digital Radio Mondiale (DRM) protocol, an SSB (Single Sideband) receiver is required. Here's why:

1. **Correct Answer: SSB (D)**
   - **SSB** is a mode of amplitude modulation that uses less bandwidth and power compared to traditional AM. It is commonly used in amateur radio for voice communications and is capable of receiving various digital modes, including SSTV. SSB receivers can demodulate the narrowband signals used in DRM, making them suitable for this purpose.

2. **Why the Other Choices are Incorrect:**
   - **CDMA (A):** Code Division Multiple Access is a spread-spectrum technology used in cellular networks, not applicable to amateur radio SSTV or DRM.
   - **AREDN (B):** Amateur Radio Emergency Data Network is a mesh networking protocol for data communications, not a mode for receiving SSTV or DRM.
   - **AM (C):** Amplitude Modulation is a broader mode that is not efficient for DRM or SSTV, as it does not provide the necessary bandwidth efficiency and selectivity that SSB offers.

In summary, SSB is the correct choice because it is specifically designed to handle narrowband signals like those used in DRM and SSTV, making it the most suitable receiver type for this application.