Preamplifier For Magnetic Probes - Rohde&Schwarz HZ-14 Manual Del Usuario

R&S HZ-14
Fig. 3 Antenna factor for magnetic probe 30 MHz to 1000 MHz (typical)
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2.2 Preamplifier for Magnetic Probes

For many applications the output level of the magnetic probes will be adequate for
driving the measuring equipment; however, when measuring very small fields some
form of amplification may be required. The preamplifier provides low noise
amplification over the range 9 kHz to 1 GHz.
The preamplifier for magnetic probes has a wide dynamic range and with its 1 dB
compression point of 8 dBm it can be used as a general purpose amplifier, but at all
times, the maximum signal input level of +10 dBm must be strictly observed (limit of
safe operation). The probes must be used without the amplifier if higher signal levels
are to be measured.
The preamplifier can be conveniently powered from the probe power outlet of most
R&S Test Receivers and Spectrum Analyzers.
Fig. 4 Preamplifier for magnetic probes
For precise measurements the typical frequency response as shown Fig. 5 have to be
used.
Operating Manual 1026.7767.12 - 01
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Frequency
Operation
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