Preamplifier

Please find a brief summary of our NMR/NQR preamplifier modules below and do not hesitate to contact us for further details.

0.7 – 150 MHz module

• Input frequency: 0.7 – 150 MHz
• Max. input peak power: 30 dBm (20 Vpp / 1 W)
• Noise figure: ≤ 1.3 dB
• Signal amplification (gain): +35 dB (min.)
• Recovery time: ≤ 9 µs (after 1 µs 30 dBm pulse)
• Input / output impedance: 50 Ω nominal
• Input / output VSWR: ≤ 1.4
• Power supply (available on request): +12 V DC

20 – 1200 MHz module

• Input frequency: 20 – 1200 MHz
• Max. input peak power: 30 dBm (20 Vpp / 1 W)
• Noise figure: ≤ 1.5 dB
• Signal amplification (gain): +20 dB
• Recovery time: ≤ 1.6 µs (after 1 µs 30 dBm pulse)
• Input / output impedance: 50 Ω nominal
• Input / output VSWR: ≤ 3.0
• Power supply (available on request): +15 V DC

1 – 400 MHz modules with fixed frequency

• Fixed frequency with approx. 2 MHz bandwidth
• Input frequency: 33 - 400 MHz (fixed frequency) non-magnetic
• Input frequency 1 - 33 MHz (fixed frequency) slightly magnetic
• Max. input peak power: 30 dBm (20 Vpp / 1 W)
• Noise figure: ≤ 0.5 dB
• Signal amplification (gain): +24 dB
• Recovery time: ≤ 2.5 µs (after 1 µs 30 dBm pulse)
• Input / output impedance: 50 Ω nominal
• Input / output VSWR: ≤ 1.3
• Power supply (available on request): +15 V DC