All changes to tower
| Date | Change | Source |
|---|---|---|
| 2 Feb 2025 | HCACR URL amended | Lucas Williams, HCACR Web Master |
| 8 Aug 2017 | 1-8: frameid added; frame info added | David Sloman via e-mail |
| 9 Aug 2012 | 3-8: nominal added | Chris Pickford via 00010037 |
| 1,2: nominal added | Chris Pickford via 00010037 |