2.2 Top Panel 1. RF OUT Connector: The output for the built-in tracking generator. Enabled with Option TG3. 2. EXT TRIG IN/REF IN (BNC, Female): Connects to an external TTL signal or a 10 MHz reference signal. The TTL signal is used to the analyzer’s internal sweep. 3. RF IN Connector (50 Ω): Accepts an external input with a frequency range from 100 kHz to 3 GHz （ 1.6GHz ） , tunable to 9 kHz. 2.3 Side Panel 2.3.1 Right Panel 1 2 3 4 Right Panel 1. USB interface (Device) Connects to a PC 2. WAN Interface Connects to a PC for SCPI remote control 3. USB interface (Host) 4.
External DC power connector Connects to a USB memory stick or disk Provides input for the DC power source via an AC-DC adapter, or Automotive type DC adapter