SDA 5500 and 5510 Return Sweep noise level
Knowledge Base - FAQ
How many return nodes can I connect to my SDA 5510 or SDA 5500?
As long as the noise floor level of the SDA 5500 and 5510 is -20 dBmv the sweep will work.
You must maintain a carrier noise ration of 20 dB between the reverse telemetry and the noise floor.
Example 32 nodes at -40 dbmV noise floor would give you approximately -26 dBmV of noise into the SDA 5510