SYST-A0004 — DF and Monitoring Stack

The SYST-A0004 is an antenna stack comprising DF-A0038 vertical polarisation DF and Omni, and OMNI-A0099 and OMNI-A0100 horizontal omni antennas. At the base it is supported by the MISC-A0047 support cage. All RF and control signals pass through the MISC-A0045 amplifier block which compensates for cable losses.
Mounted on a mast, with vertical and horizontal polarisation monitoring, and interferometric direction finding, it provides a complete spectrum monitoring and DF solution. A DF switch can be mounted at the base of the DF array. Its cables can be fed back into the mast and routed through the omnis.
The horizontal-polarisation omni antennas feature a cable duct for connection of antennas above, without distortion of their patterns. All monitoring antennas share a common axis, giving excellent radiation patterns.
• MISC-A0045 – 5-channel amplifier block to compensate for long cable runs.
• MISC-A0047 – support cage at base of stack, allows access to amplifier block and cables.

PRODUCT FEATURES:
• Three-band direction finding array optimised for two-channel receivers
• Hinge mounting flange for DF switch, with cable re-entry port
• Vertical and horizontal monitoring
• Concentric design eliminates shadowing

APPLICATION AREAS:
• ITU applications
• Spectrum monitoring
• Wide area direction finding