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Ameritec AM48 Transmission Impairment Test Set

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The Ameritec Model AM48 can do a variety of measurements. With its built-in dial capability on dial-up networks it can access a distant responder or a second AM48 for centralized 2-wire testing. You can use a single unit with an Ameritec responder for centralized loop back testing. Or, use two sets for a complete end-to-end test of 4-wire data lines.

In addition, the AM48 now combined with the new AM440 Remote Test Partner is able to further enhance your testing capabilities. A single technician can test a circuit with an AM48, AM440 and a multi-meter. The AM48 can transmit to the AM440 and measure its signal and can take noise measurements. The combination of these two measuring instruments allows for DMM testing, including resistance testing and the measurements of both voltage and capacitance.

Key Features

  • dBm level or dB loss
  • Frequency
  • Frequency Response (Attenuation Distortion)
  • Noise
  • Noise with Tone
  • Signal/Noise Ratio
  • P/AR
  • 3 Level Impulse Noise
  • Phase and Gain Jitter
  • Hits and Dropouts

NIST-Traceable Calibrations

Standard Calibration Price (without data): Request a Quote
ANSI Z540 Calibration Price (with as-found & as-left data): Request a Quote
ISO/IEC 17025:2005 Accredited Calibration Price (with data & uncertainties): Request a Quote
ANSI Z540.3 with data & uncertainties and Guardbanding: Request a Quote
Test & Measurement Equipment Repair Services: Request a Quote

*Note: Prices shown on the’s site do not include taxes or credit card fees. Prices do not include shipping and handling unless otherwise noted. Prices and product availability are subject to change without notice. All specials and promotions limited to stock on hand. Contact us for current prices.

User Guide