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P R A X S Y M
Chapter 1 General Information
Introduction
The Portable Attenuation Measurement System (PAMS) is designed
to measure the shielding effectiveness of RF enclosures. PAMS is a
tool specifically engineered to enable regular maintenance of RF
Shielded Enclosures. Routine measurements can be made to ensure
a baseline shield level is maintained with minimal disruption to
normal activities of the enclosure.
Equipment Purpose
The PAMS measures the shielding effectiveness of RF enclosures.
Both bar graph and numeric readout display the shielding level (dB).
Separately, the transmitter and receiver will also work well in custom
applications. The transmitter provides a portable and semi-rugged
CW transmitter with adjustable output power up to 1 Watt in the
frequency range from 864 MHz to 936 MHz. The receiver’s features
allow it to make accurate signal level measurements in the presence
of high ambient wireless energy over a large dynamic range and as
low as -120 dBm.
Equipment List

Transmitter

Receiver

Rechargeable Battery Packs (2 each, one installed per unit)

AC/DC power supply with cord, 15 VDC @ 3.4A (2 each)

32 Ω headphone set

12 position coax RF switch

6’ BNC/BNC RF (50 Ω ) cable

Antennas, extended 1/4 wavelength (2 each)

Transit Case

User’s Manual