The attachments are a good illustration why the rules should be changed. Olivia and ROS use a similar amount of spectrum so the FCC shouldn't be calling one legal and the other illegal based on how they were generated.
73, John KD6OZH ----- Original Message ----- From: Tony To: [email protected] Sent: Sunday, February 21, 2010 08:20 UTC Subject: [digitalradio] A closer look at ROS [2 Attachments] [Attachment(s) from Tony included below] All, It would appear that ROS-16 is not much different than say Olivia 128 / 2K. The number of tones may differ, but they both use MFSK modulation with sequential tones running at 16 baud. The question is how can ROS be considered a SS frequency hoping mode while Olivia and it's derivatives are not? A closer look shows that they are quite similar (see attached). Tony -K2MO
