Boonton 4500B Peak Power Meter - Manual (Page 98)

Boonton 4500B RF Peak Power Analyzer
Operation 4-26
Channel Math The Channel Math function calculates and displays the sum, difference, ratio or product of two
waveforms. See Figure 4-17a,b,c. Comparing waveforms using the ratio or difference functions is
useful for observing the change in a signal as it passes through a circuit element, such as an
amplifier or filter. For two-channel instruments, connect the Channel 1 sensor at the
input to the device (through a coupler, for example) and connect the Channel 2 sensor at the
output. The sum function is used to measure total power and the product function is used with
voltage waveforms to see the related power waveform.
Table 4-5. Chan Math > Menu
Menu Item
(Type) Selections Function
Selection Pulse, Mod & Stat Identical to Chan # > menu. See Table 4-2.
See Table 4-2
Channel Pulse, Mod & Stat Identical to Chan # > menu. See Table 4-2
See Table 4-2
Vert Scale Pulse, Mod & Stat Identical to Chan # > menu. See Table 4-2
See Table 4-2
Vert Center Pulse, Mod & Stat Identical to Chan # > menu. See Table 4-2
See Table 4-2
Expression Pulse, Mod & Stat Accesses the Chan Math > Expression >
submenu.
Figure 4-18a.
Chan Math >