Some probes have pogo-pin ground leads (Figure 1) that have much less inductance and help preserve signal integrity. To use this type of ground lead, though, there must be a ground connection near the ...

GoTenna gives phones the ability to communicate with each other over great distances, even when there's no signal, or no network at all. GoTenna July 18, 2014, 3:56 PM EDT / Updated July 18, 2014 ...

However, if the carrier's engineers set the threshold on the tower to a very low 100—that is, they'll allow cell phones with extremely poor signal quality to connect and make a call—a cell ...