KOEN
Alpena Light in the middle, with the lights within 20 km, in their listed colours.
Alpena Light — light characteristic, height, range
One red flash every 6 seconds
Count 6 seconds.Flash red, once.Begin again.
- Characteristic
- Fl R 6s
- Height
- 44 ft · 13 m
- Nominal range
- 9 mi = 14 km
- Structure
- Red skeleton tower with upper part enclosed.
- Remarks
- To operate the fog signal, key the microphone on channel 83A VHF marine radio five times. HORN: 1 blast ev 15s (2s bl).
- Position
- 45.0603°N, 83.4231°W · MI
Lights nearby
- Alpena South Breakwater LightOne green flash every 2.5 seconds · 81 m
- City Of Alpena Harbor Entrance Light 2Steady red light · 144 m
- City Of Alpena Harbor Entrance Light 1One green flash every 4 seconds · 150 m
- Alpena Channel Lighted Buoy 5One green flash every 4 seconds · 615 m
- Lafarge Corporation Channel Range Front LightSteady green light · 894 m
- Lafarge Corporation Channel Range Rear LightSteady green light · 1.0 km
- Alpena Channel Lighted Buoy 3One green flash every 4 seconds · 1.1 km
- Holcim Channel Range Front LightSteady red light · 1.4 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked