<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1539605545744_35783"><span></span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783"><span id="yui_3_16_0_ym19_1_1539605545744_38708">Rick, we used OTS in the Florida Keys back in 2013 and it was fine however I don't recall what the range was.</span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783"><span><br></span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783" dir="ltr"><span id="yui_3_16_0_ym19_1_1539605545744_38257">I will be using the STX in my K600 but only because I already have one, and have space in the cabin for it although it does take up a surprising amount of interior real estate. I have noted before, and will again, that I have found a dramatic difference in audio quality between the "stock" STX and SSB with the SSB being superior. I suspect this is because the STX has it's speaker wrapped in plastic to make it splash-proof which interferes with audio quality. I am hoping that with headphones or external speaker the audio quality goes way up.</span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783" dir="ltr"><span><br></span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783" dir="ltr"><span id="yui_3_16_0_ym19_1_1539605545744_38940">The STX is easier to modify because it uses banana-clips for microphone and headset, however with the right adapter it would be easy to modify the SSB as well if you wanted to use a different set of headphones, microphone, or even external speaker. For PSUBS purposes, the SSB with surface kit is more adaptable than the STX.</span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783" dir="ltr"><span><br></span></div><div id="yui_3_16_0_ym19_1_1539605545744_35783" dir="ltr">Jon</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1539605545744_38240"><br><br></div></div></body></html>