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1 GHz-18 GHz 25 dB gain

PAM-118A 1 GHz-18 GHz, 25 dB gain Preamplifier


The PAM-118A is a wideband, high gain, bench top microwave preamplifier operating over 500 MHz to 18 GHz. This preamplifier is primarily intended for EMI / EMC applications; however, it may be used for other application which requires 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 readings during trouble shooting, R&D phase. The high gain and low noise figure of PAM-118A increases system sensitivity of effectively all measurement systems. It has low VSWR and high reverse isolation. The PAM- 118A is battery powered to avoid any noise effects of power cables. It can also be powered by 15 VDC, 500 mA power adapter (provided with the unit).



High Gain – 40 dB (Typical)
Flat Response ±2.5 dB
Low Noise Figure – 3 dB max
Pout @ 1 dB Gain Compression – +12 dBm
Battery Powered


Frequency: 500 MHz to 18 GHz
Gain: 40 dB (Typical)
Gain Flatness: ± 2.5 dB
RF Input/output: 50 Ω Precision N- type female
VSWR ( Input/Output): 2.2:1 (max)
Noise Figure: <3 dB @ 25°C
Pout @ 1dB comp: +12 dBm (min)
Reverse isolation: 40 dB (typical)
Battery Pack: 6 Vdc, 2Ah NimH (rechargeable)
DC Power supply: +15Vdc, 500 mA
Size: 7.7 × 6.5 × 3.2 inches (184 × 156 × 77 mm)
Weight: 2.5 lbs. (1.1Kg)