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Radio Tower Strobe Lights  
User currently offlineSeb146 From United States of America, joined Nov 1999, 11473 posts, RR: 15
Posted (7 years 3 months 3 weeks 5 hours ago) and read 18223 times:

On the east side of PDX are two banks of radio towers. They are painted red/orange and white like normal radio towers. They have the solid red light half way up and the strobing red light at the top. One bank of towers has three the other bank has four. The bank of towers with four is closest to PDX. The tower closest to PDX does not have a red strobe but a white strobe that is on 24/7. What would be the reason for that white strobe?

GO CANUCKS!!


Life in the wall is a drag.
17 replies: All unread, jump to last
 
User currently offlineGQfluffy From , joined Dec 1969, posts, RR:
Reply 1, posted (7 years 3 months 3 weeks 4 hours ago) and read 18213 times:

Quoting Seb146 (Thread starter):
What would be the reason for that white strobe?

"Look at me! I'm here, don't hit me!"


User currently offlineKELPkid From United States of America, joined Nov 2005, 6340 posts, RR: 3
Reply 2, posted (7 years 3 months 3 weeks 3 hours ago) and read 18195 times:

Quoting GQfluffy (Reply 1):
"Look at me! I'm here, don't hit me!"

Or better yet, "Look at me! I'm in compliance with FAA Advisory Circular AC70/7460" Big grin

http://www.faa.gov/ats/ata/ai/AC70_7460_1K.pdf



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 3, posted (7 years 3 months 2 weeks 6 days 18 hours ago) and read 18111 times:

That's interesting. I have always thought/seen that lighted towers use white strobes in the day, and slow-blinking red lights at night.

User currently offlineKELPkid From United States of America, joined Nov 2005, 6340 posts, RR: 3
Reply 4, posted (7 years 3 months 2 weeks 6 days 18 hours ago) and read 18107 times:

Quoting N231YE (Reply 3):
That's interesting. I have always thought/seen that lighted towers use white strobes in the day, and slow-blinking red lights at night.

Read the advisory circular. I used to file the FAA paperwork for a broadcast engineer, who built towers all over the US, and, IIRC, in many instances putting a daytime strobe on a tower can replace painting the structure aviation orange/white, which costs the tower owner more money in maintenance than the electricity needed by the strobe  Smile



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineBingo From United States of America, joined Nov 2006, 359 posts, RR: 0
Reply 5, posted (7 years 3 months 2 weeks 4 days 6 hours ago) and read 17961 times:

Side note, Do you know what the guys who change those bulbs get paid? Typically its a dollar per foot per hour with a minimum number of hours. They typically will toss the dead bulbs (there are numerous in there) over the side so they dont have to carry them down. My old man was a radio man who did this line of work for a while...Next time you see those strobes, remember they are vertical gold mines.  Smile
Cheers,
Bingo


User currently offlineCptSpeaking From United States of America, joined Apr 2006, 639 posts, RR: 1
Reply 6, posted (7 years 3 months 2 weeks 4 days 6 hours ago) and read 17955 times:

Quoting KELPkid (Reply 4):
in many instances putting a daytime strobe on a tower can replace painting the structure aviation orange/white, which costs the tower owner more money in maintenance than the electricity needed by the strobe



Quoting Bingo (Reply 5):
Typically its a dollar per foot per hour with a minimum number of hours.

Very interesting, and GOOD GRIEF!!! I might have to take that up as a side job...  Smile

Your CptSpeaking

GO CANES!!  Wink



...and don't call me Shirley!!
User currently offlineN231YE From , joined Dec 1969, posts, RR:
Reply 7, posted (7 years 3 months 2 weeks 4 days 5 hours ago) and read 17945 times:

Quoting Bingo (Reply 5):

There was one tower, approximately 5 nm to the NE of my home airport, that took 5+ months to change a bulb.

It got to the point that every time I called WXbrief, and they went over the local NOTAMs, I said if the only NOTAM was this unlit tower, don't bother telling me it, as I already know.


User currently offlineKELPkid From United States of America, joined Nov 2005, 6340 posts, RR: 3
Reply 8, posted (7 years 3 months 2 weeks 4 days 5 hours ago) and read 17944 times:

Quoting CptSpeaking (Reply 6):
Very interesting, and GOOD GRIEF!!! I might have to take that up as a side job...

Your CptSpeaking

Hope you don't have acrophobia (I can only climb to about the 50 foot level myself...I was wearing a safety harness)  Wink Something in me just says "this is wrong!" above that height...also it feels mighty lonely up there by yourself, and climbing straight up takes really good physical conditioning.

Oh, did I mention if the wind is blowing even slightly, you get to feel the tower sway, too Big grin

If you drop anything, remember to yell "headache!" (proper tower maintenance protocol...lets everyone else know to get the h*** away from the bottom of the tower).



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineKELPkid From United States of America, joined Nov 2005, 6340 posts, RR: 3
Reply 9, posted (7 years 3 months 2 weeks 4 days 5 hours ago) and read 17943 times:

Quoting Bingo (Reply 5):
Do you know what the guys who change those bulbs get paid? Typically its a dollar per foot per hour with a minimum number of hours.

Another reason many tower owners are going to 24 hour strobes-the only thing to change on a strobe lighted tower when stuff quits working is a circuit board at ground level  Smile

However, I have seen strobes make bad neighbors out of tower owners, where the lighting was previously red lights only...



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offline3DPlanes From United States of America, joined Apr 2006, 167 posts, RR: 0
Reply 10, posted (7 years 3 months 2 weeks 3 days 8 hours ago) and read 17866 times:

Quoting KELPkid (Reply 9):
I have seen strobes make bad neighbors out of tower owners

Indeed. I live 2 miles (as the crow flies) from the approach end of two parallel runways. Both have REIL that fire together.

On nights with low ceilings, those things throw a surprising amount of light, over a large portion of the sky.



"Simplicate and add lightness." - Ed Heinemann
User currently offlineJeffry747 From United States of America, joined Jun 2005, 963 posts, RR: 2
Reply 11, posted (7 years 3 months 1 week 22 hours ago) and read 17707 times:

To put things simply, anytime you see a red flashing light or white strobe, it is there so aircraft can see it at night. I guess I don't need to mention that it's FAA regulation for all tall buildings and towers to have them.


C'mon Big B, FLY!
User currently offlineATCT From United States of America, joined Mar 2001, 2260 posts, RR: 39
Reply 12, posted (7 years 3 months 1 week 11 hours ago) and read 17665 times:

I might have to get that job.....


GO PENS!!!!!!


ATCT



"The way to get started is to quit talking and begin doing." - Walt Disney
User currently offlineKELPkid From United States of America, joined Nov 2005, 6340 posts, RR: 3
Reply 13, posted (7 years 3 months 1 week 7 hours ago) and read 17633 times:

Quoting Jeffry747 (Reply 11):
or white strobe, it is there so aircraft can see it at night

As I mentioned previously, a white strobe active during daylight hours is often in place so that the tower owner doesn't have to paint the tower aviation orange/white, thus saving the tower owner money in maintenance. Also, IIRC, new construction towers above a certain height (999' agl?) require a daytime strobe (whether or not the tower is painted...) Older towers are "grandfathered" in under the regulations that were in place when the tower was constructed.



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineBingo From United States of America, joined Nov 2006, 359 posts, RR: 0
Reply 14, posted (7 years 3 months 6 days 10 hours ago) and read 17543 times:

I dunno folks....can you stomach this?

http://www.afn.org/~scotsman/photos/empire.state.tower.work.jpg

Pucker Factor of


User currently offlineHaveBlue From United States of America, joined Jan 2004, 2097 posts, RR: 1
Reply 15, posted (7 years 3 months 5 days 11 hours ago) and read 17487 times:

Quoting Bingo (Reply 14):
dunno folks....can you stomach this?

Um, NO! And yet I love flying.



Here Here for Severe Clear!
User currently offlineSeb146 From United States of America, joined Nov 1999, 11473 posts, RR: 15
Reply 16, posted (7 years 3 months 5 days 4 hours ago) and read 17454 times:

Okay.....

The picture is dizzying! I do not envy those workers at all.

Next question: Where on the FAA or FCC website is the specifications for warning lights for buildings? There are some short buildings in downtown Portland that have red warning lights but other taller buildings that do not have lights. What is the reason for those?

GO CANUCKS!!



Life in the wall is a drag.
User currently offlineKELPkid From United States of America, joined Nov 2005, 6340 posts, RR: 3
Reply 17, posted (7 years 3 months 5 days 4 hours ago) and read 17451 times:

Quoting Seb146 (Reply 16):
Where on the FAA or FCC website is the specifications for warning lights for buildings?

Follow the link in reply #2  Wink There you shall find your answer...



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
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