Communication - Stingrays are portable cel towers that can be used to interfere with phone traffic. To avoid these, short-range communication can be done with low-cost FRS or GMRS walkie talkies such as the Baofeng MP31, about $25/pair.
Communication - Stingrays are portable cel towers that can be used to interfere with phone traffic. To avoid these, short-range communication can be done with low-cost FRS or GMRS walkie talkies such as the Baofeng MP31, about $25/pair.
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