The 1503 tests long runs of coax or twisted pair cables in telephone and other communications applications.  It provides high-energy, ½-sine-shaped pulses.  Range of the 1503, dependent upon type, is up to 50,000 feet.

• Portable.  Battery-Powered, Self-Contained, Lightweight
• Versatile.  Tests any type paired-conductor and coax cable
• Optional Accessory: Chart Recorder