CARLSON Roof Towers – 8 Foot Very Heavy Duty Roof Tower

Specifications IO-815HD
Tower Height  7.92 feet (95 inches)
Base Width 32 inches
Tower Weight 70 lbs.
Max. Antenna Wind Area at tower top 15 sq. ft. at 80 mph, 90% within 1 ft of tower top
Max. Antenna + Rotor + Mast Weight 250 lbs.
Tower Top Width 5 inches
Rotor Plate location from Top 64.5 inches
Rotor Mounting Options Hy-Gain or Yaesu
Thrust Bearing (recommended, +$79) Yaesu GS-065
Maximum Mast Diameter 2.5 inches
Mast (recommended, not included)  2″ or 2.5″ OD x 10 foot galvanized steel
Texcom Steel masts  or  US Tower M10
Leg material 6061-T6 aluminum (1/4″ thick x 2″ angle)
Shelf Material 6061-T6 aluminum (3/16″ thick x 2″ angle)
Rotor Shelf Material 6061-T6 aluminum (1/4″ thick x 2″ angle)
Foot material 6061-T6 aluminum (1/4″ thick x 2″ angle)
X-Brace and V-Brace material 5052-H32 aluminum (3/16″ x 2″ flat)
Assembly Hardware 5/16″-18  18-8 stainless steel
Foot to Leg hardware 3/8″-16  18-8 stainless steel
Nylon Locknuts Yes
Holes Deburred Yes
Part Edges Deburred Yes
Climbable Yes – with tower climbing belt or harness

The IO-815HD is perfect for moderate sized HF beam antennas such as the Mosely PRO-67C, Hy-Gain 203BA, 204BA,
Explorer-14, TH7DX, KIO 5-band Hex Beam, … The IO-815HD is also one of the best roof towers to use for
stacking a VHF beam along with a small HF beam.