AT90 Series Aluminium Tower Headframe, 4-Sector
APAC's AT90 headframes are designed to attach to the top of any AT90 series guyed mast. This four sector headframe mounts to a standard AT90 bolt pattern with the supplied bolt kit. It has an AT90 bolt pattern at the top of the headframe allowing attachment of additional AT90 series accessories.
Each vertical mount is constructed from 50 mm diameter aluminium and secured to a 90 mm centre column via two 32 mm diameter tubes to provide a high degree of rigidity and minimal deflection/torquing. Additional strengthening can be added to match your intended application.
Four-Sector headframes earned their name from traditional wireless network deployment which used an ABAB frequency configuration, such that radios using a shared frequency were placed 180° to each other for maximum isolation. These days, this type of headframe is more commonly used for mounting a broad set of equipment for projects requiring a mixed collection of wireless radios, cameras, RTK antennas, etc.
This headframe is part of the AT90 ecosystem, allowing it to be attached to any AT90 series module using the common bolt pattern.
Specifications
Physical Specification
Interfaces
Installation / Attachment
| Quantity | Mounting | Notes |
|---|---|---|
|
1
|
AT90 Bolt Pattern
|
Attaches to top of AT90 guyed monopoles
|
Available Interfaces
| Quantity | Interfaces | Notes |
|---|---|---|
|
4
|
Pole 50 mm ⌀
|
Four uprights for attaching ordinary equipment
|
|
1
|
AT90 Bolt Pattern
|
For attaching additional AT90 accessories
|
Subcomponents
Subcomponents
| Quantity | Item | Materials | Material Finish |
|---|---|---|---|
|
1
|
50x3 Tube assembly welded to 90x3 mm Tube via 32x3 Tube braces
|
Aluminium 6005-T5
|
Bright/Pickled Finish
|