Fft (Fast Fourier Transform); Lan (Local Area Network) Connection; Triple Channel Reception; Receive Mode / Additional Features - AOR AR5001D Operating Manual

The I/Q stands for In-Phase/Quadrature-Phase.
In the 45.05 MHz IF stage, 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 is ochronous USB 2.0 stand ard 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 AR5001D has a wide dynamic range (without AGC processing) floating point
da ta format.

FFT (Fast Fourier Transform)

The AR5001D 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 10 MHz span
(at 500 Hz RBW). The AR5001D scans 10 MHz of bandwidth.

LAN (Local Area Network) connection

When a n optional (external) LAN interface is connected, the AR5001D can be remotely controlled
through the internet.

Triple channel reception

Any frequency below 25 MHz can be received independently, separate from a frequency above
25 MHz. The refore, two (2) separate frequencies can be received simultaneously. Furthermore, any
two (2) frequencies above 25 MHz (within a range of +/- 5 MHz from the receive frequency) can a lso
be selected and received simultaneously. Therefore, up to three (3) frequencies can be received at
the same time.

Receive Mode / Additional Features

WFM (Wide FM)
Stereo sound (auto detected), Selectable de-emphasis 50 μS/75 μS
Stereo output is available from the 3.5 mm stereo jack on the front panel. (External stereo
headphones or speakers required to monitor stereo transmissions.)
NFM (Narrow FM)
Built-in DCS (Digital Coded Squelch)
Built-in CTCSS (Continuo us Tone Coded Squelch System)
Built-in Voice Inversion Descrambler (2,000 Hz ~ 7,000 Hz in 50 Hz step) (Not available o n
US consumer version)
P25 (APCO25) decoding (with optional APCO25 board) (conventional non-encrypted mode only)
(Receive three frequencies simultaneously)
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