Com-Power PAM-6000 Preamplifier

Frequency Range: 1 - 16 GHz / Gain: 30 dB

The Com-Power PAM-6000 Preamplifier is intended for improving measurement system sensitivity during EMC compliance testing and has a frequency range of 1 GHz to 6 GHz and a gain of 30 dB. Therefore, It amplifies the signals that were previously hidden below the noise floor of the EMI receiver so that it can be seen and measured. The PAM-6000 has a small gain variation of ±1.5 dB. It can be powered by the rechargeable NimH batteries (included) when an external power source is not available.

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Com-Power PAM-6000 Preamplifier Product Description

The model PAM-6000 is a broadband, high gain, bench top microwave preamplifier. The PAM-6000 has a frequency range of 1 to 6 GHz. It is primarily intended for microwave EMI emission testing. However, it can be used for other application that require signal amplification. The simple front panel consists of power switch, battery low indicator and two 50Ω N type input and output connectors. The preamplifier has minimal gain variation for the entire frequency range for convenience and to reduces EMI measurement errors. The PAM-6000 can be powered by the supplied 6 VDC, 500 mA adapter or the internal NimH rechargeable batteries. When the batteries are fully charged the preamplifier can operate up to 8 hours.

Each preamplifier is individually calibrated using equipment traceable to NIST. The data and certificate of calibration is shipped with each preamplifier. Optional accredited calibration service is available upon request.

Application

The PAM-6000 preamplifier increases measurement system sensitivity to low amplitude signals from equipment under test during EMI emissions testing from 1 to 6 GHz. It is typically During EMI emissions measurements the receiving antenna is typically placed at distance of 1 to 10 meters from the equipment under test. Testing at these distances require the use of long cables to connect the antenna to the EMI receiver. Longer cable runs have higher signal losses in the microwave frequency range. In addition, a typical horn or log periodic antennas operating above 1 GHz can have antenna factors in the range of 25 to 35 dB/m from 1 to 6 GHz.

The combination of higher cable loss and antenna factors reduces ability to of the receiver to display the signal above it's floor noise. Therefore, a high gain preamplifier is an indispensable part of a microwave EMI emissions measurement system. Because the PAM-6000 can also operate on battery power, it can be used in test locations where AC power is not available or not easily accessible.

Com-Power PAM-6000 Preamplifier Resources

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