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By applying state-of-the-art digital signal processing
technology, the SD-4220 provides truly versatile intermediate
frequency (IF) to data/clock waveform recovery and processing.
The design supports a wide range of input frequencies, modulation
formats, bit rates, analog bandwidths, and high speed data
decoding logic. The vast capabilities of the product enable
cost effective solutions for applications requiring simple/complex
waveform processing, and static/dynamic demodulation, bit-synchronization
and data processing.
Packaged in an industry standard 1U 19 inch rack mountable
chassis, the ruggedized design satisfies requirements ranging
from laboratory test sets and ground stations to mobile
transport case environments.
The unit supports a variety of modern and legacy modulation
formats, including Analog or Digital PM, BPSK, QPSK, OQPSK,
AQPSK, UQPSK, PM/PSK, FM, FM/FSK, or AM Waveform Processing.
The advanced digital processing capability of the SD-4220
allows significant flexibility to meet changing requirements
with simple reprogramming.
Complete, user-friendly front-panel status and control capabilities
are provided in addition to a remote computer interface
via a standard RS-232 serial port. Controllable selections
include input frequency, demodulation and bit-synchronization
modes, as well as decoding and descrambling processing.
Status information includes acquisition state, estimated
signal to noise ratios and general system built-in-test
results.
With a front panel IF input and corresponding IF monitor
output port, many SD-4220 systems can be daisy chained together
for multiple waveform recovery. A programmable rear panel
analog port provides additional capabilities by providing
selectable outputs for baseband waveforms, loop filter responses
and so forth.
With all data processing capabilities implemented via field
programmable Micro-Controllers and Gate Arrays, the SD-4220
is uniquely capable of being completely upgraded in the
field for system upgrades and custom user requirements.
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