• Langer PA 203 SMA Set | 100 kHz to 3 GHz RF Preamplifier
  • Langer PA 203 SMA Set | 100 kHz to 3 GHz RF Preamplifier
  • Langer PA 203 SMA Set | 100 kHz to 3 GHz RF Preamplifier
  • Langer PA 203 SMA Set | 100 kHz to 3 GHz RF Preamplifier

Langer PA 203 SMA Set | 100 kHz to 3 GHz RF Preamplifier

100 kHz to 3 GHz | 20 dB gain | SMA | 50 ohm

The Langer PA 203 SMA Set amplifies weak near-field probe signals for EMC troubleshooting. Noise figure 4.5 dB. Supply 12 V DC at 50 mA. Includes the amplifier, plug-in power supply and system case.

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Langer 203 SMA Set Datasheet

SPECIFICATIONS

PA 203 SMA Set near-field RF preamplifier

20 dB gain for a compact SMA measurement chain. Use it to raise low-level RF signals before a spectrum analyzer or a 50 ohm oscilloscope input when tracing emissions from PCBs and ICs.

Technical specifications

ParameterSpecification
Frequency range 100 kHz to 3 GHz
Gain 20 dB
RF connectors SMA input and output
RF impedance 50 ohm
Noise figure 4.5 dB
Output 1 dB compression point 0 dBm
Maximum RF input power +13 dBm
DC supply voltage 12 V DC
Current consumption 50 mA
Amplifier weight 35 g
Amplifier dimensions 50 x 38 x 13 mm
Set weight 400 g

Included components

ItemQty.Description
PA 203 SMA 1 SMA RF preamplifier
NT FRI EU 1 Plug-in power supply listed on the set sheet. Confirm the regional plug when ordering.
A5 case 1 System case

Preamplifier and frequency response

PA 203 SMA, Preamplifier 100 kHz up to 3 GHz
PA 203 SMA, Preamplifier 100 kHz up to 3 GHz
Frequency response
Frequency response
Frequency response (detail)
Frequency response (detail)

Connect the measurement chain

Connect the near-field probe to the amplifier input with a 50 ohm coaxial cable rated for the band of interest. Connect the output to the instrument and power the amplifier with the supplied adapter. Account for amplifier gain and cable loss when interpreting absolute signal levels. Check both amplifier compression and the instrument input limit when strong signals are present.

Browse near-field probes

Compare Langer preamplifier sets

PhotoModelFrequency rangeRF portsGainNoise figureOutput P1dB
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