This range of pre-amplifiers is invaluable
for low signal measurement applications,
with their wide bandwidth, high gain and
low noise figures. They are essential for
radiated field strength measurements
where spectrum analysers are used
together with broadband antennas as
these have relatively high loss factors.
Having noise figures of 4dB-6dB, they
can be used to make significant
improvements to overall system noise
performance in many applications.
The CPA 9231A is optimised for use with
probes in the band 9kHz-1GHz (useful to
2GHz).
The CPA 9231A has a unique warning
that activates when signals are present at
levels likely to cause non-linearity in its
pre-amplifier and thus impair the integrity
of the measurement.
The CPA 9232 has a lower gain than the
CPA 9231A and increased peak signal
handling making it ideal for use with
broadband antennas up to 3GHz.
The pre-amplifiers are compact and can
be connector mounted. They are powered
by the supplied AC mains PSU, or directly
from an external DC source.
The RFP 400x amplifiers are designed
mainly for use with the SCR 3000 receiver
range but can also be used with other
devices.
Contains
●CPA 9231A
external power supply CPS 9753
●CPA 9232
external power supply CPS 9755
●RFP 4001A and 4002
LE220 cable for connection to
SCR 3501 / 3502
Pre-amplifiers 9kHz - 3GHz
●Wide band
●High gain, low noise figure
●Improves dynamic range of emission test-systems
●Unique overload warning (CPA 9231A)
Frequency range 9kHz - 2GHz 150kHz - 1GHz 20MHz - 2.75GHz 20MHz - 3GHz
Noise figure <4dB Typically 3.8dB Typically 5dB Typ 6dB
Input connector N Female N Female N Female N Female
Output connector N Male N Male N Male N Male
Gain 30dB ± 2dB to 1GHz 20dB ±0.5dB 12dB ± 0.5 20dB ± 3dB to 2GHz
( >17dB at 2GHz) ( >14dB at 3GHz)
Input/output impedance 50Ω50Ω50Ω50Ω
Input VSWR < 2:1 ≤1.5 : 1 ≤1.5 : 1 < 1.7:1
DC power 10V ± 0.1V DC stabilised 11 - 15V 11 - 15V +20 to 30V
or 15V ± 10% DC unstabilised
DC current 100mA typ. 45mA typ. 53mA typ. 160mA
Output 1dB compression point 0dBm +5dBm +14dBm +15dBm
Size L x W x H mm 103 x 26 x 27 101 x 69 x 37 101 x 69 x 37 104 x 33 x 33
Weight 0.15kg 0.18kg 0.18kg 0.15kg
CPA 9231A
Technical Specifications CPA 9231A RFP 4001A RFP 4002 CPA 9232
CPA 9231A / 9232 RFP 4001A / 4002
UKAS Calibration option
RFP 4001A
