AOR AR2300 Operating Manual page 11

More details about the remarkable features of the AR2300
High frequency (45MHz) IF output (25MHz to 3.15GHz only)
The AR2300 has a 45MHz IF output with 15MHz bandwidth. The input signal to the 45MHz IF stage is
directly sent to the A/D converter for digital processing. This IF output signal may be suitable as an RF
front end for radio signal analysis applications. By utilizing this feature, no image signal will be present.
With an optional interface unit, a USB 2.0 interface digital I/Q output (25MHz to 3.15GHz only) is also
available. The raw data of the I/Q output may be recorded on a PC for future analysis.
High Stability Frequency Standard
When a GPS receiver is connected, the internal reference oscillator (10MHz) will be locked by the
GPS receiver, and the highest stability reference signal (0.01ppm) will be obtained. This is ideal for
frequency coherent operation and DF (Direction Finding) applications.
DDS (Direct Digital Synthesizer)
The AR2300 uses a high speed DDS for the 1
Locked Loop) circuit for the local oscillator, the DDS enables very high speed scanning as it
generates signals instantaneously, controlled by the CPU (Micro Processor).
I/Q Digital Output ( 25MHz to 3.15GHz only)
The I/Q stands for In-Phase/Quadrature -Phase.
In the 45MHz IF stage, an I/Q output is available as an optional feature. The I/Q digital signal
consists of two (2) different digital signals with phases shifted 90 degrees.
The I/Q output is provided through a continuously isochronous USB 2.0 standard interface.
By using the I/Q digital output, the streamed data can be stored on a PC hard disk for future signal
analysis.
The I/Q digital output of the AR2300 has a wide dynamic range (without AGC processing) floating
point data format.
FFT (Fast Fourier Transform)
The AR2300 utilizes FFT (Fast Fourier Transform) technology for high speed spectrum scanning.
FFT enables refreshment of the spectrum display more than 10 times per second for a 10MHz span
(at 500Hz RBW). The AR2300 scans a span up to 10MHz (+/- 5MHz from the center frequency.).
LAN (Local Area Network) connection
When an optional (external) LAN interface is connected, the AR2300 can be remotely controlled
through the internet.
st
local oscillator. Unlike a standard PLL (Phased
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