The SDA Family: Introduction
2
1
NOTE: One benefit of the SDA products is the increased
sweep speed provided by the new SDA Stealth Sweep and
SDA Transmit operating modes.
Keep in mind that in order to take advantage of these new
features, you must be using SDA equipment both in the
headend (SDA-5500 or SDA-5510) and in the field (SDA-
5000).
Field Unit
In one lightweight package, the SDA-5000 is a powerful multipurpose
troubleshooting assistant:
• A multipurpose forward and reverse sweep tool
• An advanced field spectrum analyzer that can measure ingress and
noise to 5 microsecond bursts
• A digital carrier analysis tool capable of displaying digital signal
performance characteristics
Headend Units
To check the frequency response of your system, the SDA-5500 headend
transmitter injects low-level signals in the forward downstream path,
inserting signals in vacant channel or spectrum areas. It also monitors the
cable system's carrier levels in occupied spectrum areas for use in the non-
interfering Sweepless Sweep, where the carrier itself is used as the sweep
signal. In addition to generating carriers and using existing channels for
sweep test signals, the SDA-5500 sends headend signal level readings to
the downstream receivers with every sweep update. This technique enables
the receivers to compensate for any signal level changes, maintaining the
utmost measurement accuracy. The SDA-5510 performs reverse sweep
functions only, but unlike the SDA-5500, it allows multiple receivers to work
with one headend unit. The SDA-5500 and SDA-5510 can be used together
using separate telemetry data carriers.
To Next Page
Loading...
Need help?
General
