HP 8753E manual Entry Block Keys, Enabling Auxiliary Channels, Multiple Channel Displays

Enabling Auxiliary Channels

Once a full two-port calibration is active, the auxiliary channels can be enabled. ‘Ib enable channel 3 or 4, press:

1.@&X1) or lchan]

2.@z&iq--

Once enabled, an auxiliary channel can be made active by pressing [than) twice (for channel 3), or twice [than), (for channel 4). The active channel is indicated by an amber LED adjacent to the corresponding channel key. If the LED is steadily on, it indicates that primary channel 1 or 2 is active. If it is flashing, it indicates that auxiliary channel 3 or 4 is active.

Multiple Channel Displays

The analyzer has the ability to display multiple channels simultaneously, either overlaid or on separate graticules. Refer to “Display Menu” later in this chapter for illustrations and descriptions of the different display capabilities.

Uncoupling Stimulus Values Between Primary Channels

....You....... ....::. can....:.. uncouple the stimulus values between the two primary channels by pressing LMenu)

~~ is ~ . .. ii / .:::.::: .;~~~;~~~;.;;;;;;;;;;;;;;.;;;~

~~~~~~~~~ . ‘IJ& &JWS you to a&gn different stylus v&es for each camel; it’s __,,_;,:.:.:.~.:.:.~~~::,.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.~~~:.~,.~.,:,~,~.~ ,.,.,.,,,/,,,,,,,,,,,,,,,

almost like having the use of a second analyzer. The coupling and uncoupling of the stimulus values for the two primary channels are independent of the marker and display functions Refer to “Channel Stimulus Coupling” later in this chapter for a listing of the stimulus parameters associated with the coupled channel mode.

Coupled Markers

Measurement markers can have the same stimulus values (coupled) for ali channels, or they can be uncoupled for independent control in each channel. Refer to “Markers” later in this chapter for more information about markers

Entry Block Keys

The entry block, illustrated in Figure 6-4, includes the numeric and units keypad, the knob, and the step keys, You can use these in combination with other front panel keys and softkeys for the following reasons:

nto modify the active entry

H to enter or change numeric data

w to change the value of the active marker

nto hide the softkey menu

Generally, the keypad, knob, and step keys can be used interchangeably.

Application and Operation Concepts 6-6