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Decimator D2 Second Generation L-Band Spectrum Analyzer Card
SED’s Decimator D2 is a second generation
spectrum measurement and analysis
card providing high-end performance at
a low price. It can function as either an
independent spectrum analyzer or can
easily be integrated into a satellite
terminal, equipment enclosure or as
part of a larger measurement network.
Decimator is the smallest card on the market and is ideal for integration into small spaces. It can be
installed in any enclosure or computer chassis. It is a half size PCI card and can be installed in an available computer PCI slot, providing power to the card. Alternately, it can be mounted on standoffs and powered
through a +12/+5 Vdc 3-pin connector for integration into any enclosure.
It uses state of the art digital technology and Fast Fourier Transformations to make quick and accurate
measurements. With a very low noise floor and large dynamic range, it is well-suited to measurement
of any type of satellite carrier, including very small carriers, beacon signals and for carrier monitoring
applications. Decimator accepts all L-band signals from 950 to 2,150 MHz and input power levels ranging
from -110 to +5 dBm. RBW varies from 4 Hz to 500 kHz. The Decimator can be connected to an external
10 MHz reference for improved frequency accuracy and stability. All data communications with the
Decimator occurs via its built-in Ethernet port.
The Decimator’s powerful Graphical User Interface (GUI) is available using any standard web browser.
No additional software is required. The GUI is very easy to use and operates like most traditional spectrum
analyzers. It provides user-selectable colors for markers and traces, allows storage of multiple traces and
provides measurement reporting.
The Decimator provides network access to all technical staff connected to the facility network or a corporate
wide area network. This allows all technical staff the ability to monitor feeds and carriers at any time and
from any location in the world using only a web browser.
For integration into a satellite terminal or measurement system, the Decimator can be operated via its
built-in GUI or the user can create a separate user interface using the publicly available API. An SNMP
status interface is also provided.
Decimator D2 Features
Overview
- covers full L-band from 950 to 2,150 MHz
- external 10 MHz reference or internal reference
- web browser or API control
- SNMP status interface
- installs in half size PCI slot
or equipment
enclosure
Physical Interfaces
| RF Inputs: | SMA, 50 ohms |
| Control: | RJ-45 |
| Reference: | BNC, 50 ohms |
| Power: | PCI connector or 3-pin Molex connector |
| Mechanical: | half size PCI card, 6.875 x 4.2 inches |
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| FFT Sizes | Windows |
| 256 | Flattop |
| 512 | Hanning |
| 1024 | Hamming |
| 2048 | Uniform |
| 4096 | Blackman-Harris |
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8192 | |
Measurement Speed
- 8192 Point FFT, 52 MHz span: 2.11 seconds
- 1024 Point FFT, 3.5 MHz span: 0.190 seconds
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