Leaderboard

That only works until someone sits down with a scanner capable of detecting and identifying TPL/TCS and DPL/DCS and goes hunting for the info. All you have to do is be close enough to the transmitting unit in the field and you can immediately ID the DPL/DCS. Zap's method shoul successfully beat the bubble packs because I don't believe that they can do one mode on Tx and another on Rx. But if the interfering person has a commercial portable or mobile, all bets are off.