5.4 Main Menu 2 And Its Functions; Modulation Menu - Hameg HM 8131-2 Manual

MainMenu 2 and its functions

5.4 Main menu 2 and its functions

See former page for an overview.
Main Menu 2
MAIN Menu2 HM8131-2
*** MAIN MENU 2 ***
Mod Phi Option <--
** OPTIONS MENU 1 **
Com Mcard Memo -->
Phase :
- val +

* MODULATION MENU *

AM FSK PSK
The main menu 2 allows access to 3 other menus. The button
below the arrow calls main menu 1.
5.41 Modulation menu (types of modulation)
Modulations Menu HM8131-2
* MODULATION MENU *
AM FSK PSK
** PSK PARAMETERS **
Ph0 Ph1 On
** FSK PARAMETERS **
F0
** AM PARAMETERS **
- 0% +
The HM 8131-2 features the modulation types: AM (amplitude
modulation), FSK (frequency shift keying) and PSK (Phase shift
keying). They can be selected in the main menu 2 at "Mod".
Amplitude modulation
AM Parameters HM8131-2
** AM PARAMETERS **
- 0% + AMi AMx
First AM has to be chosen, then the modulation depth from 0 to
100 % which can be done in 1 % steps. Either internal or external
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** OPTIONS MENU 2 **
<-- Beep Enco -->
0.0 deg
< cur >
Off
Phase1: 180.0 deg
- val + < cur >
Phase0: 45.0 deg
- val + < cur >
F1 On Off
F1: 4.0000000 kHz
- val + < cur >
F1: 20.0000000 kHz
- val + < cur >
AMi AMx
** OPTIONS MENU 3 **
<-- Ref Disp -->
modulation is possible. The modulation depth can be set by the

menu buttons , the knob
is used the value keyed in will be stored by pressing the button
(MHz/%). The AM function will be activated by pressing either the
menu button [AMi] or [AMx] for internal resp. external modulation.
An arrow in front of the modulation type selected will indicate
which was activated. The function activated will be deactivated
by pressing the same button again.
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Internal modulation source
The internal source generates a 1 kHz 1.0 V
lation depth selected will determine the shape of the output
signal.
The picture shows: internal source, Vo = 10 V
100 % modulation, scope 5 V/cm.
** OPTIONS MENU 4 **
Lcd Date
” •
or the keyboard . If the keyboard
17 16
signal. The modu-
rms
, f = 20 kHz,
pp
Subject to change without notice
<--
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