Features:
	
Four pulse channels, each with independent control of delay, width, amplitude, and trigger source.
	
Any channel can trigger or gate any other channel with selectable polarity.
	
Manual pushbutton and external TTL trigger selection.
	
All pulse parameters displayed simultaneously on an LCD display. No scanning through menus to see settings.
	
All parameters varied by a single, easy to access optical encoder wheel; fine, smooth control with the feel of analog, but the precision of digital circuitry.
	
Each pulse parameter has a separate select key for setting. Multiple keystrokes are not required.
	
Automatic increment and decrement of multiplier.
	
Separate summing outputs for channels 1 plus 2 and 3 plus 4.
	
Two ways to make pulse trains: 1) Any channel can gate another channel on -or- 2) Combine channels 1 and 3 and/or 2 and 4 for train mode with control of train delay, pulse width, interval, and number of pulses.
	
Nonvolatile memory - the PG 4000A can store and recall up to 8 different instrument settings (all parameters).
	
Dynamic resolution feature, which enables you to reach precise settings quickly and accurately.
	
RS-232 interface.
	
LCD backlighting.