I'm pretty sure the signal cut out because the Soviets feeding it energy realized we were on to it, the guys weren't hammer the seal with the device when it cut

I'm pretty sure the signal cut out because the Soviets feeding it energy realized we were on to it, the guys weren't hammer the seal with the device when it cut out. Unlikely we'd not finish the job in discovering it, but that was the least worst thing they could do at that point.