Specifications

Chapter 8 59
Making Time-Gated Measurements
Generating a Pulsed-RF FM Signal
Making Time-Gated Measurements
Step 2. Set up ESG #1 to transmit a pulsed-RF signal with frequency
modulation. Set the FM deviation to 1 kHz and the FM rate to 50 kHz:
ESG #1 generates the pulsed FM signal by frequency modulating the
carrier signal and then pulse modulating the FM signal. The pulse
signal created in step 1 is connected to the EXT 2 INPUT (on the front of
ESG #1). The ESG RF OUTPUT is the pulsed-RF FM signal to be
analyzed by the spectrum analyzer.
Table 8-2 ESG #2 Internal Function Generator (LF OUT) Settings
LF Out Source FuncGen
LF Out Waveform Pulse
LF Out Period 5 ms
LF Out Width (pulse
width)
4 ms
LF Out Amplitude 2.5 Vp
LF Out On
RF On/Off Off
Mod On/Off On
Table 8-3 ESG #1 Instrument Connections
Frequency 40 MHz
Amplitude 0 dBm
Pulse On
Pulse Source Ext2 DC
FM On
FM Path 1
FM Dev 1 kHz
FM Source Internal
FM Rate 50 kHz
RF On/Off On
Mod On/Off On