Front Panel Elements - Brief Description - Hameg Instruments HM5530 Manual Del Usuario

F r o n t P a n e l E l e m e n t s – B r i e f D e s c r i p t i o n
Front Panel Elements – Brief Description
The fi gures indicate the page for complete descriptions in the chapter
POWER
Power switch.
Keyboard
Number entry.
CENTER
Center frequency adjustment via keyboard
TUNING . (Display: CF...)
SPAN
Frequency range setting via keyboard
in combination with CENTER
START
Start frequency setting via keyboard
(Display: SR ...)
STOP
Stop frequency setting (via keyboard
(Display: SP ...)
TUNING
(Rotary encoder) Parameter entry or change for the following
functions:
Center frequency CENTER , SPAN, START/STOP frequency,
MARKER, Deltamarker, REF.-LEVEL, TEST signal level, Intensity
(INTENS), FOCUS, TRACE rotation, volume (PHONE).
DISPLAY MODE
Readout intensity setting. Sequence: 100%, 50%, 0%, 100% etc.
Pressing and holding shows the selected interface (indicate RS-232
or USB; only in connection with HO720).
Pressing and holding once more chooses the interface (RS-232/
USB; only in connection with HO720)
INTENS
Intensity setting use TUNING
FOCUS
Focus adjustment use TUNING
TRACE
Trace rotation use TUNING
dB/DIV
Briefl y pressing toggles between 5dB/div and 10dB/div
dB/unit*
Pressing and holding, changes from dBm to dBmV and dBμV.
ATTENUATION L M
Input attenuator from 0 to 50 dB switchable in 10 dB steps.
0 dB*
For safety reasons 0 dB can only be selected by pressing and hol-
ding.
REF.-LEVEL
Briefl y pressing calls Reference Level setting via keyboard
TUNING without infl uence on the attenuator setting. (Display:
RL...)
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Subject to change without notice
CONTROLS AND READOUT! M
or
or TUNING
. (Display: SP...)
or TUNING .
or TUNING .
.
.
.
AUTO*
Pressing and holding switches Reference Level settings via key-
board or TUNING
level dependent automatic attenuator setting changes. (Display in
n
condition ON: RL*...).
VBW
Video bandwidth selection 4 kHz / 50 kHz.
30
SELECT
After briefl y pressing either pushbuttons, the selected function
30 and the memory location are displayed for a few seconds. Within
this time the memory locations can be selected by briefl y pressing
either pushbutton.
31
SAVE* / RECALL*
If the function (SAVE or RECALL) and the memory locations are
displayed, the function can be executed by pressing and holding
31 the related pushbutton.
MARKER
Briefl y pressing calls the absolute marker for frequency and level
31 determination. Position control by TUNING
Frequency: MF...; Marker- Level: ML...)
Briefl y pressing once more sets the marker automatically to the
highest level displayed.
31
Δ-MARKER*
Pressing and holding Δ-MARKER activates the relative marker
(Rhombus Symbol), measuring in respect to the absolute marker.
32 Position control by TUNING
DF...; -Level: DL...)
Pressing and holding once more sets the delta marker automatically
to the highest level displayed.
RBW
Briefl y pressing toggles the resolution bandwidth (1000 kHz, 120
32 kHz and 9 kHz). (Display: BW...)
AUTO*
Press and hold to switch the automatic resolution bandwidth setting
on or off.
(AUTO on, Display: B*...)
(AUTO off, Display: BW...)
32
AVG
Switches the average function on or off, active when lit.
32
MAX HOLD
Pressing and holding switches the maximum value signal capture
32 function on or off.
MIN HOLD *
32 Switches the minimum value signal capture function on or off.
Function is indicated by fl ashing key.
PHONE
Volume adjustment by TUNING
32 PHONE
Headphone connector, 3.5 mm jack, intended for headphones
8 Ω impedance.
of >
VIEW B
Shows the reference memory signal displayed.
32
or CALC A – B
Shows the difference (A–B) between the current signal (A) and the
reference memory content (B).
on or off in combination with reference
. (Display Marker-
. (Display Delta-Marker Frequency:
.
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