To be precise. ... in USA, any tower OVER 199 feet tall needs lighting.
SOME towers lower in height ALSO need lighting, depending on distance
from airport and 'glideslope'.
73
Don
N8DE
Quoting Cal Zethmayr <w4gmh@cox.net>:
> In the USA a tower must be 200 feet or taller to require lighting or
> meet guidlines for painting or the types of lighting.
> I wonder what the regs are in other countries?
>
> Cal Zethmayr
> W4GMH
>
>
>
>
> ---- towertalk-request@contesting.com wrote:
>
> =============
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>
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> When replying, please edit your Subject line so it is more specific
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>
> Today's Topics:
>
> 1. tower lights (Spencer)
> 2. Re: tower lights (K8RI on TT)
> 3. Re: Terrain data for HFTA (David J. Sourdis - HK1A)
> 4. FS: Glen Martin M-1850A 50' aluminum tower with Hazer
> (Paul Playford)
> 5. Re: Terrain data for HFTA (TexasRF@aol.com)
> 6. Re: tower lights (Williams, Richard (OAG/CPG))
> 7. rotating towers, et al (don daso)
> 8. Re: Rotating tower (TexasRF@aol.com)
> 9. Rotors for sale (K1TTT)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 19 Aug 2011 14:08:10 -0600
> From: Spencer <k5gak@powerc.net>
> Subject: [TowerTalk] tower lights
> To: towertalk@contesting.com
> Message-ID: <4E4EC2AA.4020504@powerc.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> there are dark sky rules here in New Mexico, and many other places. Be
> aware!
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 19 Aug 2011 16:47:41 -0400
> From: K8RI on TT <k8ri-on-towertalk@tm.net>
> Subject: Re: [TowerTalk] tower lights
> To: towertalk@contesting.com
> Message-ID: <4E4ECBED.7090900@tm.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 8/19/2011 4:08 PM, Spencer wrote:
>> there are dark sky rules here in New Mexico, and many other places. Be
>> aware!
>
> And thank goodness for them, but the ham tower that requires lights is
> rare. I wish they'd go to shields/reflectors that prevent the light from
> going up around here, but they don't even have to be shielded. When we
> moved here 27 years ago it was quite dark. Then it seems every one was
> installing those mercury vapor lights. Of course the places with nothing
> to steal put them on all sides of a tall, white house. People don't
> realize that shielded, directed lights are far more effective than very
> bright, unshielded lamps.
>
> I've thought of running Christmas lights up the guys, but as I'm on the
> centerline for the local GPS-06 I think I'll pass on that one.<:-))
>
> 73
>
> Roger (K8RI)
>
>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 19 Aug 2011 22:47:54 -0500
> From: "David J. Sourdis - HK1A" <hk1kxa@hotmail.com>
> Subject: Re: [TowerTalk] Terrain data for HFTA
> To: "towertalk@contesting.com" <towertalk@contesting.com>
> Message-ID: <COL115-W143B46547717CB2E6197088F2D0@phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> I would not trust Google-Earth elevation data.To add an example like
> Bimini, Bahamas: Check Malpelo Island, HK0TU, 400 km away from the
> colombian Pacific coast (4.0 N, 81.6 W) According to Google earth
> the island is submerged under the water surface a least 340 ft. In
> reality, this island has elevations over 1000 ft ASL.
>
> David
> HK1A
> EC5KXA
> AE5XQ
>
>
>> From: n6bv@arrl.net
>> To: towertalk@contesting.com
>> Date: Wed, 17 Aug 2011 11:29:16 -0700
>> Subject: [TowerTalk] Terrain data for HFTA
>>
>> Charlie:
>>
>> You said recently:
>>
>> > Date: Tue, 16 Aug 2011 20:12:45 -0500
>> > From: Charlie Carroll <k1xx@cfl.rr.com>
>> > Subject: Re: [TowerTalk] grabbing terrain data for HFTA
>> > To: Grant Saviers <grants2@pacbell.net>, towertalk@contesting.com
>> > Message-ID: <wg1l6uo0lqvcmp2rougptbc7.1313543269277@email.android.com>
>> > Content-Type: text/plain; charset=utf-8
>> >
>> > Door's abt to close, so have to be brief. Of late, I have taken
>> > to semi-automatically extracting terrain data from Google Earth.
>> > I dump this info into an Excel spreadsheet for the number
>> > crunching. Pretty painless to do something like ten foot
>> > intervals out to 10k feet.
>> >
>> > 73 charlie, k1xx
>>
>> N6BV: I'm not sure where Google Earth gets their terrain data, but I am
>> suspicious that it is derived at least partially from the SRTM (Shuttle
>> Radar Topography Mission) data set. I get nervous when I look at the terrain
>> data for islands surrounded by seawater -- which should, by definition, be
>> at or at least very close to sea level. It is often shown as being
>> considerably different from sealevel.
>>
>> N6BV: For example, in Google Earth zoom into Baileytown, Bimini, Bahamas.
>> Just to the west of Baileytown the altitude goes considerably negative.
>> Either this is a depthsounder reading (which I doubt) or else something is
>> goofy!
>>
>> N6BV: I'm curious how you are extracting that data from Google Earth
>> semi-automatically, even if I'm nervous about the data itself.
>>
>> >
>> > Grant Saviers <grants2@pacbell.net> wrote:
>> >
>> > >Can some one share a pointer for up to date instructions for grabbing
>> > >the terrain data from the web for HFTA? Every instruction I've found is
>> > >hopelessly out of sync with the current terrain data web site.
>> > >
>> >
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 19 Aug 2011 21:31:15 -0700
> From: "Paul Playford" <paul@w8aef.com>
> Subject: [TowerTalk] FS: Glen Martin M-1850A 50' aluminum tower with
> Hazer
> To: <towertalk@contesting.com>
> Message-ID: <0853678FAFB74C67BE028C30C2846CC1@Desktop>
> Content-Type: text/plain; charset="us-ascii"
>
> Rated at 16 sq. ft. in an 87 mph wind.
>
> Requires 3 ea 1" dia x 36" threaded rods with nuts and guy anchors.
>
> Asking $750, on the ground in Phoenix, AZ. Delivery negotiable.
>
>
> de Paul, W8AEF
>
> ZF2JI/ZF2TA FO8DX/FO8PLA 8Q7AA XZ0A VU7RG/VU3PYM TX5C
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 20 Aug 2011 07:53:04 -0400 (EDT)
> From: TexasRF@aol.com
> Subject: Re: [TowerTalk] Terrain data for HFTA
> To: hk1kxa@hotmail.com, towertalk@contesting.com
> Message-ID: <41922.2703ce7a.3b80fa20@aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> Sounds like someone's earth bulge corrections are amiss! This is the name
> used due to the earth shape being slightly ellipsoid instead of a perfect
> sphere. The earth diameter is slightly greater at the equator than higher
> or lower latitudes.
>
>
> If this is the case, then it seems that the elevation of all locations
> near the HK area would be in error.
>
> We have to account for earth bulge in our EME az/el calculations so it is
> a real effect; not just imagined.
>
>
> 73,
> Gerald K5GW
>
>
>
> In a message dated 8/19/2011 10:48:12 P.M. Central Standard Time,
> hk1kxa@hotmail.com writes:
>
>
> I would not trust Google-Earth elevation data.To add an example like
> Bimini, Bahamas: Check Malpelo Island, HK0TU, 400 km away from the colombian
> Pacific coast (4.0 N, 81.6 W) According to Google earth the island is
> submerged under the water surface a least 340 ft. In reality, this
> island has
> elevations over 1000 ft ASL.
>
> David
> HK1A
> EC5KXA
> AE5XQ
>
>
>> From: n6bv@arrl.net
>> To: towertalk@contesting.com
>> Date: Wed, 17 Aug 2011 11:29:16 -0700
>> Subject: [TowerTalk] Terrain data for HFTA
>>
>> Charlie:
>>
>> You said recently:
>>
>> > Date: Tue, 16 Aug 2011 20:12:45 -0500
>> > From: Charlie Carroll <k1xx@cfl.rr.com>
>> > Subject: Re: [TowerTalk] grabbing terrain data for HFTA
>> > To: Grant Saviers <grants2@pacbell.net>, towertalk@contesting.com
>> > Message-ID: <wg1l6uo0lqvcmp2rougptbc7.1313543269277@email.android.com>
>> > Content-Type: text/plain; charset=utf-8
>> >
>> > Door's abt to close, so have to be brief. Of late, I have taken
>> > to semi-automatically extracting terrain data from Google Earth.
>> > I dump this info into an Excel spreadsheet for the number
>> > crunching. Pretty painless to do something like ten foot
>> > intervals out to 10k feet.
>> >
>> > 73 charlie, k1xx
>>
>> N6BV: I'm not sure where Google Earth gets their terrain data, but I am
>> suspicious that it is derived at least partially from the SRTM (Shuttle
>> Radar Topography Mission) data set. I get nervous when I look at the
> terrain
>> data for islands surrounded by seawater -- which should, by definition,
> be
>> at or at least very close to sea level. It is often shown as being
>> considerably different from sealevel.
>>
>> N6BV: For example, in Google Earth zoom into Baileytown, Bimini, Bahamas.
>> Just to the west of Baileytown the altitude goes considerably negative.
>> Either this is a depthsounder reading (which I doubt) or else something
> is
>> goofy!
>>
>> N6BV: I'm curious how you are extracting that data from Google Earth
>> semi-automatically, even if I'm nervous about the data itself.
>>
>> >
>> > Grant Saviers <grants2@pacbell.net> wrote:
>> >
>> > >Can some one share a pointer for up to date instructions for grabbing
>> > >the terrain data from the web for HFTA? Every instruction I've found
> is
>> > >hopelessly out of sync with the current terrain data web site.
>> > >
>> >
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> ------------------------------
>
> Message: 6
> Date: Fri, 19 Aug 2011 18:56:07 -0300
> From: "Williams, Richard (OAG/CPG)" <Richard.Williams@gnb.ca>
> Subject: Re: [TowerTalk] tower lights
> To: Spencer <k5gak@powerc.net>, "towertalk@contesting.com"
> <towertalk@contesting.com>
> Message-ID: <33D89F00C2617444912B0ACB8729C9F2706729AE8D@GNBEX1.gnb.ca>
> Content-Type: text/plain; charset="us-ascii"
>
> I called the Canadian equivalent of the FAA once about whether I
> would need lights on an 88 foot Trylon self-supporting tower. The
> guy answered that if a plane was flying at 88 feet, whether my tower
> had a light or not wouldn't make much difference.
>
> Rick VE9HF
> ________________________________________
> From: towertalk-bounces@contesting.com
> [towertalk-bounces@contesting.com] On Behalf Of Spencer
> [k5gak@powerc.net]
> Sent: Friday, August 19, 2011 5:08 PM
> To: towertalk@contesting.com
> Subject: [TowerTalk] tower lights
>
> there are dark sky rules here in New Mexico, and many other places. Be
> aware!
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 7
> Date: Fri, 19 Aug 2011 20:29:25 -0400
> From: don daso <k4za@juno.com>
> Subject: [TowerTalk] rotating towers, et al
> To: towertalk@contesting.com
> Message-ID: <20110819.172957.950.930663@mailpop06.vgs.untd.com>
> Content-Type: text/plain; charset=us-ascii
>
> There's obviously some confusion rampant here...W9GE's tower installation
> using K0XG hardware rotates, I believe K1TTT's tower uses the K0XG
> orbital ring rotator, which is
> a simple "apples & oranges" comparison.
>
> The GH controller can certainly ramp up rotators, such as Bob's Orion.
> The XG orbital ring is simply turned on/off by the pwr supply relays, &
> doesn't ramp up/down.
> But, it would be helpful if it did, in fact, especially on the bigger
> antennas, like OWAs...
>
> 73 Don K4ZA
>
> Tower Works
> Charlotte NC
>
> Antenna Towers for Radio Amateurs
> published by ARRL
>
> www.k4za.com
> ____________________________________________________________
> Penny Stock Jumping 3000%
> Sign up to the #1 voted penny stock newsletter for free today!
> http://thirdpartyoffers.juno.com/TGL3141/4e4f003958ea277a0a1st02vuc
>
> ------------------------------
>
> Message: 8
> Date: Sat, 20 Aug 2011 08:13:41 -0400 (EDT)
> From: TexasRF@aol.com
> Subject: Re: [TowerTalk] Rotating tower
> To: k6xt@arrl.net, n4zr@contesting.com
> Cc: towertalk@contesting.com
> Message-ID: <41e03.7f8d1193.3b80fef5@aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> Art, re: 204BA: wonder if they can be reconfigured as a 4-el OWA design?
> Love that bandwidth!
>
> On the 3-el 40 tip size: keep in mind that as the taper continues, the
> element length has to increased due to the taper effect. The yagi design
> programs will show this.
>
> 73,
> Gerald K5GW
>
>
>
> In a message dated 8/19/2011 8:47:48 A.M. Central Standard Time,
> k6xt@arrl.net writes:
>
> Pete
> Someone else replied about K4JA's loss saying it was a hurricane. Our
> winds don't get up there or haven't yet.
>
> An elephant gun to Asia would be good. I'm trying to avoid a mast and
> associated hardware in the tower. Another piece of R45 above the top
> guys, at 75 lb, seems as light as anything else I could put up there.
>
> The small 20 above the 40 gives me the opportunity for 3 phased 20's.
> Someone suggested a 204BA, I have some of those elements but would
> probably make it a 3L.
>
> My 3L40 is an old DXE. From the factory it came with (what I consider)
> huge tips. Starts out at 2 inch, ends in telescoping tubing at 0.875in.
> To me that is gross overkill at the tips. I replaced the outer 16 feet
> with 204BA elements to cut the weight but more important the wind load.
> My neighbor K0YW has a duplicate of this ant. His element sag is
> something like 3X mine. This ant is up on a hilltop 70 ft crankup
> cranked down to about 50 ft for the past year with no probs so far.
>
> Gotta wonder if K4JA's pair of 40's started twisting in opposite
> directions. AB105 is stout stuff, I had some up 30 yrs ago in San Diego
> area.
>
> 73 Art K6XT
> Allison, Colorado
> "One of the harshest lessons learned from recent disasters, especially
> Katrina, is that you are your own first responder."
> ...LtGen Russel Honore USA
> GMCC CWOps 728
> NAQCC 1342 SDDXC
> ARRL TA
>
>
>
>
> On 2011-08-19 05:54, Pete Smith wrote:
>> You're right to be concerned about twisting loads. K4JA, who is a
>> pretty good back-yard engineer, lost a 200-foot AB-105 rotating tower
>> with 2 40m OWAs on it in a windstorm, and from the debris it was
>> obvious that it had twisted to failure. Afterward, he told me he sure
>> wished he had a shear pin or other provision for breaking the
>> connection between his rotator and the tower, because if it had been
>> free to move it might well have survived.
>>
>> By the way, if you plan to phase the two 3L 20m yagis, wouldn't you be
>> better off putting the top one at 100 feet? Or are you looking for an
>> elephant gun to Asia?
>>
>> 73, Pete N4ZR
>>
>> The World Contest Station Database, updated daily at
>> www.conteststations.com
>> The Reverse Beacon Network at http://reversebeacon.net, blog at
>> reversebeacon.blogspot.com,
>> spots at telnet.reversebeacon.net, port 7000
>>
>>
>>
>> On 8/18/2011 8:51 PM, Art K6XT wrote:
>>> I've started construction of a 150 ft Rohn 45 rotating tower using K0XG
>>> base and four rings, top ring at 140 ft. Just above the top ring will be
>>> a 3L40 and possibly a small 20 above that, like 3L.
>>>
>>> I'd be very interested in any experience or anecdotes on projects like
>>> this using R45. That tower was selected because I already own it. My
>>> area has the potential for icing. The ice I've seen is very light,
>>> nothing like back east or in EU. But I suppose its possible. Not too
>>> windy, the strongest seem to peak out around 70mph and that's rare.
>>>
>>> One issue I see is, there are no torque bars on the tower. All its
>>> torque is transmitted to the rotator on the ground. K0XG's rings do have
>>> torque bars but that doesn't help the tower.
>>>
>>> The general plot is to add antennas down the tower above the guy rings.
>>> Second 3L20, a shorty 40 Hygain, 10 and 15M.
>>>
>>> Replies to k6xt at arrl dot net are FB, or here.
>>>
>>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> ------------------------------
>
> Message: 9
> Date: Sat, 20 Aug 2011 14:16:34 +0000
> From: "K1TTT" <K1TTT@ARRL.NET>
> Subject: [TowerTalk] Rotors for sale
> To: "reflector -tower" <towertalk@contesting.com>
> Cc: Nobarc <nobarc@nobarc.org>
> Message-ID: <EF30E8164B614FC7BE6F5B6352DC6E1E@k1tttibm>
> Content-Type: text/plain; charset=US-ASCII
>
> A relatively recent production TIC 1122 that has some mechanical damage.
> There are some teeth broken in the big ring, and welds broken on the boom
> cradle outriggers (http://www.k1ttt.net/images/2011_k0xg_ring_11_Small.jpg
> picture while still on the tower). More pictures can be provided if
> interested. Comes with 2 motors, boom truss assembly, and a TIC controller.
>
> A 25 year old TIC 1032 ring. Rusty but otherwise was working except for a
> bent shaft on the drive motor. Comes with 1 motor, boom truss assembly, and
> a TIC controller. (http://www.k1ttt.net/images/32in_tic_ring_1_Small.jpg)
>
>
> $100ea, pickup in Peru, Ma.
> I would hate to try to ship these, boxing and shipping would probably cost
> more than I want for them... But if you were really sure you wanted them I
> might.
>
> Will take them to the NoBARC(http://www.nobarc.org/) flea market next week
> only if someone is really interested.
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt@arrl.net
> web: http://wiki.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://k1ttt.net
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> End of TowerTalk Digest, Vol 104, Issue 36
> ******************************************
>
> _______________________________________________
>
>
>
> _______________________________________________
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>
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