Andy Mention wrote an answer about Suunto Dual Comfort Belt on February 24, 2014
This might be getting a little too specific, but it looks like you two are talking about different things. Jordan seems to be interested in the potential for the HRM strap to interfere with his beacon while in transmit mode while Arthur is referring to search mode.
Your heart rate monitor isn't going to keep your buddies from finding you, but it might interfere with searching for them if they are buried. Arthur's advice is probably good.