System information

The RF cascade ports provide a connection point allowing additional receivers, Spectrum Managers, or Antenna
Distribution Systems to share the RF signal. The following components have RF cascade ports:
• AXT600 Spectrum Manager
• AXT400 Receiver
• AXT630 Antenna Distribution System
The following table lists the characteristics of the cascade ports for each component.
Component Cascade Output Filtering Signal Loss Recommended Devices
AXT400 Receiver Output matches selected
tuning band
0 dB Up to 5 receivers tuned to
the same band
AXT600 Spectrum Manager Wideband 4 to 5 dB Receivers, AXT630
Antenna Distribution
Systems
AXT630 Antenna
Distribution System
Wideband 4 to 5 dB AXT600 Spectrum
Manager, receiv-
ers, AXT630 Antenna
Distribution Systems
RF Cascade Ports
50 Ω
Filter Select Switch
50 Ω
Antenna In
Filter Select Switch
Filter 1
Filter 2
Filter 3
Filter 4
LNA
LNA
Cascade Out
Tracking
Bandpass
Filter
Digital
Attenuator
Switched Band-Select Filters
To Mixer
AXT400 Receiver Signal Flow
51
Chapter 9 ‒ RF Connectivity and Antennas