HAMEG HM8135
Manual de Usuario

Types of Modulation

Phase modulation (PM)
After selecting DEV (PM MEMU) using the context sensitive keys , the display shows:

FSK modulation
After selecting F0 or F1 (FSK MENU) with the context sensitive key , the display shows:

Fsk0: 512.000000 MHz � stp + cur
A new value of this deviation can be entered from the data keypad or modi�ed by the digital rotary or one of the four context sensitive keys . For more details, refer to the paragraph �Setting parameters�. The deviation range may be set from: � 0 to 3.14 rad (<16 MHz) � 0 to 10 rad (16 � 3000 MHz) � Setting with a step of 0.01 rad. The return to the previous menu is possible by pressing the PREV. key and the return to the main display by pressing the ESC key . Example 10: For PM sine (deviation: 1 rad), the display shows:

Fsk1: 522.000000 MHz � stp + cur
A new value of Fsk0 or Fsk1 can be entered from the data keypad or modi�ed by the digital rotary or one of the four context sensitive keys . For more details, refer to the paragraph �Setting parameters�. The skip frequency Fsk0 Fsk1 or Fsk1 from: � 0 to 10 MHz (16 MHz - 3000 MHz) � step 1 Hz Fsk0 may be set

The return to the previous menu is possible by pressing the PREV. key and the return to the main display by pressing the ESC key . Example 12: For modulation FSK, the display shows:

1190.000000 MHz 1200.000000 MHz
Fsk0: 1190.000000 MHz Fsk1: 1200.000000 MHz

FSK Ext

PSK Modulation
After selecting PH0 or PH1 (PSK MENU) with the context sensitive key , the display shows:

Example 11: For PM square, the display shows:

Psk0: � stp + Psk1: � stp +

�10.00rad cur 10.00rad cur

A new value of Psk0 or Psk1 can be entered from the data keypad or modi�ed by the digital rotary or by one of the four context sensitive keys . For more details, refer to the paragraph �Setting parameters�. The skip phase Psk0 Psk1 or Psk1 from: � -3.14 rad to 3.14rad (<16 MHz) � -10 rad to 10 rad (16 � 3000 MHz) � step 0.01 rad Psk0 may be set

The return to the previous menu is possible by pressing the PREV. key and the return to the main display by pressing the ESC key . CH1� modulation signal > CH2� modulated signal (deviation: 1 rad) > Example 13: For modulation PSK, the display shows:

1200.000000 MHz +13.0dBm

PSK Ext

Subject to change without notice 33