Manuals

• Model IO-45HD Manual (4.2 foot) roof tower
• Model IO-610HD Manual (6 foot)roof tower
• Model IO-810HD Manual (8 foot) roof tower
• Model IO-815HD Manual (8 foot) roof tower
• Wall Bracket Manual

References

• “Tower and  Antenna Wind Loading as a Function of Height”, Frank Javanty W9JCC, QEX July/August 2001, pp 23-33
• EIA/TIA-222-G Explained
• How to Strengthen your Roof with Collar Ties
• The Mathmatics of Rafter and Collar Ties
• Calculations for the IO-810 roof tower.

Warranty

The product is warranted against defects in workmanship for two years from date of purchase. It is not warranted against acts of God such as wind that exceeds the structural design limits. Warrantee claims are limited to the original cost of purchase. Also see the section in the instruction manual for mounting to roof rafters.