Abstract: An exponential signal generator having a memory, a scale unit and an adder. A value stored in the memory is scaled and added to itself to produce a new value for storing in the memory. The exponential signal is represented by the exponential value.

Abstract: A switching network for coaxial transmission lines switches both the center conductors and the shields to allow floating measurements and eliminate the effects of ground loops. The shields are switched even though the coaxial relays use to switch the center conductors do not themselves also switch the shields. This is accomplished by using two coaxial relays having connected center conductors, each of which coaxial relay is itself shielded, and a third relay to selectively connect and disconnect the shields of the coaxial relays. All three relays open and close in unison. Although this arrangement provides excellent isolation when open within the circuit where it is used, there is unfortunatly a coupling mechanism between pairs of such circuits having such relay arrangements that are closed. This coupling mechanism produces crosstalk between such pair of circuits. The crosstalk current tends to flow in a resonant circuit.

Abstract: A switching network for coaxial transmission lines switches both the center conductors and the shields to allow floating measurements and eliminate the effects of ground loops. The shields are switched even though the coaxial relays used to switch the center conductors do not themselves also switch the shields. This is accomplished by using two coaxial relays having connected center conductors, each of which coaxial relay is itself shielded, and a third relay to selectively connect and disconnect the shields of the coaxial relays. All three relays open and close in unison. Although this arrangement provides excellent isolation when open within the circuit where it is used, there is unfortunately a coupling mechanism between pairs of such circuits having such relay arrangements that are closed. This coupling mechanism produces crosstalk between such pairs of circuits. The crosstalk current tends to flow in a resonant circuit.