Using FieldFox’s vector voltmeter (VVM), you can measure a device's phase shift and electrical length. By utilizing the “Zero” function, one device’s phase and electrical size can be measured relative to a “golden device” view results on the large display, which can be seen as far as ten feet away.

The large vector voltmeter display makes it easy to match two or more devices’ electric lengths and ensures signals that travel on different devices have the same delay.

FieldFox offers all the critical functionalities of the HP 8508A in a handheld form factor without needing the source, bridge, and accessories required with the 8508A.