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Software Defined Radio

PostAmp 1-150


Ultra Linear RF Amplifier 1- 150MHz

Ultra-linear DRM Post Amplifier

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Document (PDF):

Data Sheet PostAmp 1-150 (1 page)

Official DRM Supporter (Digital Radio Mondiale)

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Ultra Linear RF Amplifier for DiRaGen 30

Ultra-linear DRM Post Amplifier 1-150MHz

The PostAmp 1-150 was especially developed as post amplifier for the DiRaGen 30.This amplifier increases the DiRaGen`s output level for about 30dB from -10dBm to +20dBm (100mW).

This delivers enough power for an optional power amplifer.

Amplifiers for DRM signals need an ultra linear design to avoid compression effects which will degrade the excisting Signal-to-Noise Ratio (SNR). This is guaranteed when the RMS output power level (measured thermically) is about 10-14dB (depending on Crest Factor) below the declared compression point (P-
1dB) for peak envelope power (PEP).

The temperature compensated amplifier is housed in a robust oversized aluminium cabinet for passive cooling.

Due to the linear design the unit is best suited for all analog and digital modulated signals.


Technical Data:


Frequency Range: 1- 150MHz / 0.5 -210MHz (-3dB)
Connectors: BNC sockets
Gain: 30dB +/- 1.5dB typ.
Max. Output Power: +34dBm (5W) PEP / +20dBm (100mW) RMS eff. for DRM
IP3 @10MHz: +48dBm (55dBc

Supply Voltage: 13 - 15V DC 750mA max / 2.1mm DC power socket (positive inner, minus outer)
Working Temperature: 0 - 35°C
Dimensions: 190 x 110 x 55mm
Weight: 0.5kg