HP 8530A, Руководство по эксплуатации и программированию, Страница: 82 / 439

4
A ctive Channel Block
Introduction
This chapter describes the two channels in the receiver , how they work, as well as showing
more detail on the internal workings of the receiver .
The Two Channels
The receiver has two separate , identical measurement channels . The channel feature is much
like having two HP 8530 receivers setting next to one another .
The term \active channel" refers to the channel that was activated last. When you select a
parameter , change measurement settings , and so on, you aect the active channel. In the same
way , only one parameter (P ARAM 1, P ARAM 2, P ARAM 3, or P ARAM 4) can be the active
parameter at any given time . The same applies to markers .
Figure 4-1. Channel Selection K eys
Independent Channel Settings
Channel 1 and 2 can have dierent P ARAMETER, FORMA T , or RESPONSE settings . In addition,
you can select Time Domain on one channel, and Frequency Domain on the other . F or example ,
you could set Channel 1 to Frequency Domain, P ARAM 1. Then you could set Channel 2
to Time Domain, P ARAM 2. The receiver will measure each channel and display the data.
Y ou can view the data separately (by changing channel), or you can display both sets of data
side-by-side (dual channel split) or superimposed (dual channel overlay). These functions are
available under the 4 DISPLA Y 5 key .
Internal Data Flow
The internal data ow in each channel is described in Chapter 2, System Overview .
Active Channel Block 4-1