You need to change E16 Data Band Select, the default is to send the APRS out over the sub-band (the one where the triangle isn't). So if you select the R-Band Fix, it will transmit only on the right side. Hope that helps, I aggravated a noon time net for two days until I realized net control was talking bad about me. Fortunately he didn't know it was me, he was thinking it was someone who had just attended a night before class on packet radio. Once its on the fixed band selection, be sure to turn the beaconing off if you change over to monitor another frequency on the fixed side because you'll send your APRS beacon out loud and clear where you don't want it.