HP HP 8753E, Руководство пользователя, Страница: 41 / 699

10.
11.
12.
13.
14.
The block.
This block includes the knob, the step keys, the number pad,
and the backspace key. These allow you to enter numerical data and control the
markers.
You can use the numeric keypad to select digits, decimal points, and a minus sign for
numerical entries. You must also select a units terminator to complete value inputs.
The backspace key
has two independent functions: it modifies entries, and it turns off
the menu so that marker information can be off of the grids and into the
menu area. For more details, refer to Chapter 2.
STATE function block.
These keys allow you to control
channel-independent system functions such as the following:
n
copying, save/recall, and HP-IB controller mode
n
testing
external source mode
n
tuned receiver mode
n
frequency offset mode
n
test sequence function
n
harmonic measurements (Option 002)
n
time transform (Option 010)
HP-IB STATUS indicators are also included in this block.
key. key returns the instrument to either a known factory preset state, or a
user preset state that can be Refer to the “Preset State and Memory Allocation”
chapter for a complete listing of the instrument preset condition.
PROBE POWER
connector
.
This connector (fused inside the instrument) supplies power
to an active probe for in-circuit measurements of ac circuits
CHANNEL
connectors
.
These connectors allow you to apply an input signal to the
analyzer’s R channel, for frequency offset mode.
PORT 1 and POET 2. These ports output a signal from the source and receive input
signals from a device under test. PORT 1 allows you to measure and PORT 2
allows vou to measure and
HP Description and Options