 RhaasPremium
join:2005-12-19
Bernie, MO
2 edits | Towersite buildout
Existing cable entrance and Cables going up to the antennas | 
Pile of stuff for the site, most of the wire is scraps/left overs from our primary tower, boxes of stuff for this site | 
More wire - #2 green is for halo | 
Existing cabling | 
Existing Cabling | 
Air bottle for the Heliax's | 
12" cable rack partially mounted | 
Cable rack Isolation/Mounting hardware | 
South wall 6 | 
Closeup of the isolation sleeve & washer | 
Two of three cable racks mounted | 
Cable rack isolation | 
Closeup of islation pad between angle bracket and cable rack |
Anyway, had some 'free' time today to get started on getting the new site into shape. Decided to use 12" cable rack along the wall with the cable entrance and 6" along the other two walls (to form a U shape). Got the 12" up and one of the 6" up. I need to do some electrical work so I didn't want to cut power to the lights late in the day so I stopped for now.
The cable rack is a little lower than I like (does not match up with the 7' rack), but I had to match the height of the existing cable entrance. Since I am mounting the cable rack angle brackets directly to the cinder block wall I am isolating the cable rack itself from the brackets. The cable rack wll eventually be bonded to the MGB with #6 and all the joint's will be jumped with #6 (from rack to rack in the corners) |
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| how much is the rent: I will move in as resident network administrator if there is a toaster oven (or pizza delivery) in the corner: oh, and air conditioning.
hell it looks better that my house at the moment!
If you are running Mikrotik, I can be a full time Netequalizer:
My orders: if you see green light in queue = all ok
if you see red light in queue = go to 128 k on the f*%# |
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 vipermCarpe DiemPremium
join:2002-07-09
Winchester, CA | hahah YUP i hear you we do that too when we get calls on th e802.11 B stuff running slow 9 out of 10 times we find someone file sharing or just streaming tons and tons of stuff during busy hours..
We dont have this issue on canopy stuff..
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ComTrain Certified Tower Climber. American Tower Certified approved contractor. Wireless consultants. |
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 warwick
join:2009-06-05
Hollywood, FL
1 edit | reply to thewisperer
said by thewisperer:If you are running Mikrotik, I can be a full time Netequalizer: My orders: if you see green light in queue = all ok if you see red light in queue = go to 128 k on the f*%# Dang, I thought we were the only ones that did this 
But at least they are getting their moneys' worth so I feel good in that regard, unlike non-terrestrial services (will call no names) |
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RhaasPremium
join:2005-12-19
Bernie, MO | reply to thewisperer
Lol! There is A/C & Heater and soon to be a generator as well. A little small to live in though ~ 9' x 9'. Hoping to dump an AN-80i & probably a BH20 as backup for feed. 2.4Ghz MT Ap, 900mhz Canopy & maybe 700mhz 802.16d(e) Wimax Airspan as customer access.
Hmmm.. I may take you up on the full time neteq |
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 John GaltForward, MarchPremium
join:2004-09-30
Happy Camp
kudos:3 | reply to Rhaas
Pics of the exterior of this structure? |
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RhaasPremium
join:2005-12-19
Bernie, MO | »[Tech Ops] New (to me) tower - Questions inside Pics of the site when we first started the process of acquiring the tower. Once lawyers got involved what should have taken weeks took months.. |
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| reply to Rhaas
Nice job so far. Keep up the work. Make sure you post pictures of bonding inside. |
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lutfulPremium
join:2005-06-16
Ottawa, ON Reviews:
 ·TekSavvy DSL
| reply to Rhaas
said by Rhaas:soon to be a generator as well.
Generator and transfer switch located outside the shelter?
said by Rhaas:AN-80i & probably a BH20 as backup for feed. 2.4Ghz MT Ap, 900mhz Canopy & maybe 700mhz 802.16d(e) Wimax Airspan as customer access. I will assume that you want to improve lightning surge protection of all these equipment as you upgrade grounding/bonding inside and outside the shelter. 
I hope you will have a careful look at FAA guidline for shelter grounding shown above (with a few extra comments in blue text) and their AC panel SPD recommendations which is not reflected in this diagram. If you carefully read the relevant sections, you will see that FAA essentially follows the IEC hookup I showed in another thread.
I tried to draw the robust neutral-to-earth SPD required for 100% equipment protection from both nearby strikes and remote strikes (via AC) which may occur many microseconds apart. Just bonding AC neutral to real ground does not provide sufficient lightning surge protection for equipment inside a shelter. |
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| reply to Rhaas
Hey I just noticed that your waveguide there is EW63. It's good for 5.85-7.125GHz....
That means that there is a possiblity that you have a 6GHz microwave feedhorn on the other end. We spoke about it not too long ago, and you might be able to reuse the dish itself for a 5.8GHz backhaul if that is the case. It could also be in the 7GHz band for broadcast use, which is always the possiblity being this was an old broadcast site. I'd have a guy go up and see if there are any PN's on the feed...
I have some flange adapters as well, N-FEM to flange if you need them. I can check and see what flange style but they should be usable on what you have there, so you can connect the gear up to the waveguide or the feedhorn. We need to dump them anyway as they have been here in our stockroom for many, many years.
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"No job is so important, and no service is so urgent that we cannot take the time to perform our work safely."
-- AT&T, Your World, Destroyed.
--Safety One Tower Rescue Certified
--LLigetfa:"Wimax is like teenage sex. Everyone talks about doing it." |
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Oh yeah, don't forget to be a man and lace all your cables in the ladder.... :P |
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RhaasPremium
join:2005-12-19
Bernie, MO | reply to AMD Phreak
Transfer switch/Sub Panel will be inside, the genset will be mounted to a concrete pad outside. Similar to this one (older model that I bought new a few years ago and it's been sitting in the warehouse ever since): »www.northerntool.com/shop/tools/···00365568
There is a filter on the end of the waveguid that IIRC shows being tuned for 7035.5Mhz. I know the other end of the link is somewhere near the Tn. border as the TV station is based out of Memphis.
We've not been up the tower yet, last time we were prepared to climb I could hear equipment running inside the building. Since I didn't know what was turned on I cancelled the climb.
Lutful, your drawing confuses me, correct me if I'm wrong but that is a 3phase diagram, is it not? I am pricing out a TVSS for the site but I don't know if they'll pony up the keesh. |
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1 edit | If you need a TVSS for AC and don't need 3-phase protection (which i doubt you do) I would look at the Transtector PN 1101-808.
BTW I just placed a call to my guy over AT transtector for you and verified this is the model to use for what I think is your application.
We use these exclusivly by the way....
»www.transtector.com/productdetai···1101-808
EDIT: here is a link.
--
"No job is so important, and no service is so urgent that we cannot take the time to perform our work safely."
-- AT&T, Your World, Destroyed.
--Safety One Tower Rescue Certified
--LLigetfa:"Wimax is like teenage sex. Everyone talks about doing it." |
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| reply to Rhaas
said by Rhaas:Lutful, your drawing confuses me, correct me if I'm wrong but that is a 3phase diagram, is it not? The diagram is 3 phase Delta on the primary and 3 phase Y on the secondary. |
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lutfulPremium
join:2005-06-16
Ottawa, ON Reviews:
·TekSavvy DSL
| reply to Rhaas
said by Rhaas:Lutful, your drawing confuses me, correct me if I'm wrong but that is a 3phase diagram, is it not? Method applies to any configuration which have incoming AC neutral and local ground at shelter. You can use the generic IEC diagram per DEHN in other thread.
FYI this diagram is actually Figure 6 from FAA STD 019 which was uploaded in other thread - you should read their suggestions designed for maximum equipment protection. I only added a few comments in blue text and showed the most critical N-G SPD which lowers the potential on both AC neutral and AC ground inside the shelter during a direct or nearby lightning strike.
said by Rhaas:I am pricing out a TVSS for the site but I don't know if they'll pony up the keesh. The N-G and L-G SPDs for shelter AC panel should be tested according to UL 1449 3rd edition guidelines which requires 16 strikes of 6kV (8/20uS) surge waveform one after another. I think those devices are listed under "VZCA" class at UL database but you have to check test was done after Oct/2009 when lightning surge related changes came into effect.
Strikesorb is such a device and may not be that expensive - I like their claim to have invented the generic "V connection" shown in other thread. »www.raycapinc.com/docs/direct_connection.pdf |
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 Killa200Premium
join:2005-12-02
Southeast TN | reply to Rhaas
Rhaas please tell me you fixed that bad section of roof? I know a guy looks to hit right around there... but nothing like a few down the road and having that issue start raining on your parade, 
Looking forward to seeing more pictures as the site progresses, |
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RhaasPremium
join:2005-12-19
Bernie, MO | 
Corrosion inside meter base | 
#6/2 Romex is good for a 100 amp service right??!! notice the #2 for the neutral | 
Rats nest. They used stranded wire on everything.. | 
This was being fed off a 60amp breaker with #10's.. Thats good too right??!! | 
What was feeding the old light fixture, 2 #12 blacks.. | 
New lights mounted and temporarily fed. | 
Bunch of garbage gone. |
Not much happening I've been working on the Missouri BroadBand mapping for the companies. That thing is a PITA!! I did get a chance to spend this afternoon out there and start stripping the electrical out a bit. I need to replace the meter base and the main panel both.
I like light, so I removed the single 4' flourecent and put in two 8' fixture instead. Should be good for a 9' sq. building right? |
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RhaasPremium
join:2005-12-19
Bernie, MO | 
Nice straight cut lines... |  |
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 superdogI Need A DrinkPremium,MVM
join:2001-07-13
Lebanon, PA | That roof is horrible. I can't really see a lot of up close detail, but I can see how the shingles are not flat and tight. That tells me that unless the sun really bakes that roof in the next few days or weeks, the next storm is going to have a field day if the tabs don't grab and shingles will be missing again.
I guess it is their idea of job security? Do a half assed job and then come back and get paid to fix your own mistakes. Thats a pretty smart idea, LOL!
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»www.wavecrazy.net
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Killa200Premium
join:2005-12-02
Southeast TN
1 edit | reply to Rhaas
Wait, that second pic of the roof is.... done? Good lord, your not being picky in saying that is a mess, your just wanting a complete job!
What size main is in that electrical panel? I can't tell from the pic, but it seriously looks like the meter pan is feeding the mains panel with a #6 set of wires, which is only good for 60amp. (the common looks to be bigger and separate, say #2 or so). It also looks like they connected the small #10 ground in the romex feeder (also a good sign that it is #6 NM, if it were SE cable it would have a comparable ground/neutral). That is SO against code. Since this is your first in line panel you should be bonding the ground an neutrals. The like sized runs from panel to meter panel should be in #4 copper / #2 Aluminum at minimum to achieve 100amp. It also needs to be in conduit, and not through the brick wall unprotected.
They sure did leave you a mess with this new hut, lol. |
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