Originally Posted by
rickair7777
Yes, but most airplanes today have three radios...
1. ATC
2. Guard
3. Data (SELCAL/ACARS)
If you only have two radios, then you'll need company or data on com 2.
Some aircraft have three radios that are setup as atc, SELCAL, and data. Point being that not all operators are required to guard 121.5. Once they got rid of our SELCAL, I realized how much of this annoying, useless chatter was going on on guard.