Com-Power Wideband High Gain Preamplifier PAM-118A

Wideband high gain preamplifier PAM-118A is intended for improving measurement sensitivity in the microwave frequency range of 500 MHz ~ 18 GHz and high gain of 40 dB minimum.
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In stock
Delivery time:
7 - 12 days
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The PAM-118A is a wideband, high gain, bench top microwave preamplifier. This model has a frequency range of 500 MHz to 18 GHz and is primarily intended for EMC applications. However, it may be used for other application that require low noise and high signal amplification.

The simple front panel consists of two 50 Ohm matched precision N-connectors for input and output. The preamplifier was designed to have flat gain with minimal variation over the entire frequency range. The flat gain helps in taking fast adhoc readings during troubleshotting and R&D phases.

The high gain and low noise figure of PAM-118A increases system sensitivity of effectively all measurement systems. It is very effective in measuring low level signals during Electromagnetic Interference (EMI) testing. It has low VSWR and high reverse isolation.

The PAM-118A preamplifier increases system sensitivity enhancing the capability of measurement system to measure low level signals. It also provides input isolation to your spectrum analyzer or receiver.

During EMC measurements the antennas are usually placed at a distance of 1 to 10 meters from the equipment under test (EUT). Most antennas operating above 1 GHz typically have high antenna factors. In addition, the long interconnecting cables, especially operating in the microwave frequencies have high cable loss. These factors makes it difficult to distinguish low level signals from the noise floor of the spectrum analyzer / receiver. The preamplifier improves system sensitivity by amplifying the signals before they reach the spectrum analyzer / receiver input thereby improving the signal to noise ratio.

The system sensitivity can be further improved by connecting the preamplifier as close as possible to the the antenna output. This eliminates the attenuation of the signal due to long cable length before the preamplifier gets a chance to amplify it. The reduced cable length from antenna output to preamplifier input drastically improves the overall system sensitivity.

The battery powered PAM-118A allows placing the preamplifier very close to the receiving antenna without possible introduction of interference from power cables. It can also be powered by 15 VDC, 500 mA power adapter (provided with the unit).

Each preamplifier is individually calibrated using equipment traceable to National Institute of Standards and Technology. Individual data and certificate of calibration is shipped with each unit.

  • Ultra Wideband: 500 MHz to 18 GHz
  • High Gain: 40 dB minimum
  • Flat response: ±2.5 dB
  • Low Noise Figure: 3 dB max
  • Pout @ 1 dB Gain Compression: +12 dBm
  • Battery Powered
  • Three Year Warranty

Preamplifier PAM-118A Typical Gain

Preamplifier PAM-118A Typical Gain
Model: PAM-118A
Manufacturer: Com-Power
Frequency Range: 500 MHz to 18 GHz
Gain: 40 dB
Flatness: ± 2.5
RF Input / Output: 50Ω Precision N-type female
VSWR: 2.2 : 1 (max)
Noise Figure: < 3 dB @ 25°C
P out @ 1 dB Compression: +12 dBm (min)
DC input: 0 VDC (max)
Reverse Isolation: 40 dB (typical)
DC Power supply: +15 VDC / 500 mA
Size: 18.4 cm x 15.6 cm x 7.7 cm / 7.7" x 6.5" x 3.2"
Weight: 1.1 kg
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