Channel Menu Front Panel Operation
5-14 PN: 10585-00001 Rev. P ML2437A/38A OM/PM
In Profile mode, the Min/Max is between cursors only, as controlled by selecting
SINGLE or INFINITE through the
System > Graphics > TRACKING menu. SINGLE (default) is the most useful as it
provides a continuously updated readout of the Min/ Max points within the cursor
window. The INFINITE setting is used when the results needs to be collated over a
large number of samples.
RESET [MMRST]
This function resets the Min/Max (when ON) for the channel selected.
Rel 1 [REL]
After the relative power level is set by the operator, the Relative mode subtracts that value
from the current measured power. If selected when in Relative mode, the relative operation
for channel one is turned off.
Pressing the Rel 1 soft key when in Readout mode will subtract the last used relative value.
Hold down the key to retake this value. The readout will display 0.00 dBr. This relative value
will be used thereafter until it is replaced by another one in the same manner. This allows the
user to refer to a previously referenced value, without the meter resetting itself back to a 0.00
display.
Rel 2 [REL]
Relative mode control for Channel 2 is labelled Rel 2.
Limits
Pressing the Limits menu soft key displays the test limits for the selected channel. This menu
sets individual high and low pass/fail limits for the two display channels. These limits drive
the PASS/FAIL display flags and the PASS/FAIL TTL output if selected.
In Power vs. Time graphic mode and Readout digital mode, each fail of the limits produce a
separate fail flag and fail beep (if ON) and also drive the rear panel BNC (if enabled) for each
pass or fail reading. In PROFILE mode, each fail of the limits produce a fail beep (if ON) and
hold the fail output if any point in a sweep fails. If FAIL indicator HOLD is ON, both the
screen FAIL indicator and the BNC output are held in the fail state whenever the limits
specified for the channel have been exceeded, regardless of whether the reading subsequently
goes into pass or not. This state remains until FAIL indicator HOLD is turned OFF.
CHANNEL
The limits are set for the selected display channel unit type. The display channel units
selected when the limit was originally set or turned on become the limit units. If the
display channel units are changed, and the limits not altered, limit checking is turned
off for that channel. If the display channel units are subsequently returned to the same
units selected when the limit was entered or turned on, limit checking is turned on
again.
Note
Use MIN/MAX to track variations in a measurement over time, or while adjusting
external devices or tuning over frequency.
To Next Page
Loading...
