HP 8447D, Руководство по эксплуатации и обслуживанию

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4 DRAFT
Operation and Service Manual
General Information
General Information
The HP 8447D, 8447E and 8447F are general purpose, wideband amplifiers. Each
instrument consists of a power supply and one or two thin film, hybrid, integrated
circuit amplifiers. The thin film amplifiers are hermetically sealed and feature low
noise, low distortion, flat frequency response, and long term stability and reliabil-
ity.
The HP 8447D Amplifier is a pre-amplifier that provides 25 dB of gain to signals
from 100 kHz to 1.3 GHz. It can be used to increase the sensitivity of any lab,
shop or field device operating within its frequency range.
The HP 8447E Amplifier is a power amplifier that provides 22 dB of gain to sig-
nals from 100 kHz to 1.3 GHz. It can be used to increase the output power of sig-
nal generators, swept sources and similar devices operating within its frequency
range.
The HP 8447F Amplifier contains a preamplifier and a power amplifier. They are
the same thin film amplifiers used in the HP 8447D and HP 8447E. The input and
output ports of both amplifiers are available on the front panel. They can be used
separately or cascaded to provide 47 dB of gain.
The HP 8447F Option H64 Amplifier is a general purpose wide band amplifier
with Type-N connectors. It contains two preamplifiers. One provides 26 dB mini-
mum gain to signals from 9 kHz to 50 MHz. The other provides 25 dB minimum
gain to signals from 100 kHz to 1300 MHz.
Table 1 HP 8447D and HP 8447E Specifications
Specifications
HP 8447D
Preamp
HP 8447E
Power Amp
Frequency range 0.1 to 1300 MHz 0.1 to 1300 MHz
Typical 3 dB bandwidth (Std, Opt 001 and Opt 011) .075 to 1700 MHz .075 to 1400 MHz
Mean Gain (20
°
to 30
°
C) 25 dB minimum 22 dB
±
2.0dB
Gain flatness across frequency range
±
1.5 dB
±
1.5 dB
Noise Figure
<
8.5 dB
<
11 dB (typical)
Output power for 1 dB gain compression
>+
7 dBm (typical)
≥+
12.5 dBm
(0.1 to 1000 MHz)