Wide frequency coverage 3 to 500 MHz RD antenna .Used to track down EMI or a pirate radio or just fun fox hunting having a strong null in the center of the antenna will pinpoint the direction of the signal off one side of the antenna will peek the signal direction then if the signal is strong enough turn 90 des to find the deepest null this will be the direction of the signal within 5 degrees you get the loop and 1m coax with either pl259 standard or bnc on request. not the handheld in the photo RX only passive loop plug in and go
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