Additional Features: Bandwidth: 300 MHz 4 Channels Sample rate: 2.5 GS/s Record Length: 10 kpts Full VGA Color LCD  Built-in Floppy Disk Drive For Easy Storage and Documentation 21 Automatic Measurements Centronics Port Standard on all Models for Quick, Convenient Hardcopies 9-bit Vertical Resolution Multi-Language User Interface QuickMenu User Interface Mode for Quick, Easy Operation Optional Modules for RS-232, GPIB, LAN or VGA Communication Ports Advanced Triggers, such as, Glitch, Width, and Logic Standard on 4 Channel Models Telecommunications Mask Testing (TMT) Fast Fourier Transform (FFT) for Frequency and Harmonic Analysis Standard on 4 Channel Models Extended Video Application Module Support for Active Probes, Differential Probes, and Current Probes that Provide Automatic Scaling and Units Optional Modules for RS-232, GPIB, LAN or VGA Communication Ports Applications: Telecommunications Manufacturing (Telecom Mask Test Application Module for Pass/Fail Compliance of ITU-T G.703 and ANSI T1.102 [Up to STS-1 Rates] Standards) Digital Design and Debug Video Design and Service (Video Application Modules Offer Line Count, HDTV and Custom Video Trigger, Video Display Graticules, SDI to Analog Video Conversion with Composite and Component Outputs, Video Picture Identification and Vectorscope) Industrial Electronic Design Power Supply Design Connected Instrumentation (10Base-T LAN, GPIB and VGA Modules with RS-232) Highly Mobile Environments (Optional Battery Pack for Convenient Use in the Field or Away from the Bench) The TDS 3000 oscilloscopes are the lowest priced, most portable Digital Phosphor Oscilloscopes (DPOs). Now every design engineer and technician can take advantage of the tremendous benefits of DPOs. DPOs deliver a new level of insight that makes dealing with complex signals simple. DPOs display, store, and analyze, in real-time three dimensions of signal information: amplitude, time, and distribution of amplitude over time.