Steps in tuning the receiver?

• A. -Set the mode on the R-2368; Patch the SRA-4a to the R-2368 using SB-3332 patch panel; tune the SRA-4a; lock the tuning
• B. -Patch the SRA-4a to the R-2368 using SB-3332 patch panel; Set the mode on the R-2368; tune the SRA-4a; lock the tuning
• C. -Set the mode on the R-2368; tune the SRA-4a; Patch the SRA-4a to the R-2368 using SB-3332 patch panel; lock the tuning
• D. -Tune the SRA-4a; Set the mode on the R-2368; Patch the SRA-4a to the R-2368 using SB-3332 patch panel; lock the tuning

Answer: (A)

Getting a receiver set up correctly hinges on doing things in a logical order. First, set the mode on the R-2368 so the unit is configured for the correct band and modulation type. This establishes the operating context the rest of the chain will use. Next, patch the SRA-4a to the R-2368 with the SB-3332 patch panel to create the actual signal path. Without that physical connection, tuning the SRA-4a has no effect on the received signal. Then tune the SRA-4a to the desired frequency, adjusting the front-end parameters so you’re listening on the right channel. Finally, lock the tuning to keep the setting stable and prevent drift.

If you patch or tune out of order, you might end up configuring or listening on the wrong path or frequency, and you’d have to redo steps. This order ensures the correct mode is active, the signal path is established, the channel is properly tuned, and the setting remains fixed.