RE: [WISPA] Rental of Spectrum Analyzer?
Ryan: Check out TRS-Rentelco (at http://www.trs-rentelco.com/). I've rented a good bit of gear from them in the past and it's always been a good experience. They don't carry bottom-end gear and they take care of it properly so they're not cheap, but they're fair. If memory serves, you can browse their site for the performance you need and even get pricing guidelines or quotes online. Good luck, Ted Edward J. Hatfield III, President E.J. Hatfield & Company 5142 Edgemoor Drive Norcross, GA 30071-4342 USA 1-770-209-9236 - Office 1-770-209-9238 - Fax 1-770-560-0736 - Sprint/NexTel 1-678-457-8411 - AT&T/Cingular 154*273*18 - NexTel -Original Message- From: D. Ryan Spott [mailto:[EMAIL PROTECTED] Sent: Friday, June 15, 2007 8:28 PM To: 'WISPA General List' Subject: [WISPA] Rental of Spectrum Analyzer? Who can I rent a spec analyzer from? Does anyone know of rates? ryan -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Looking for an ISP
Does anybody know of an ISP serving the areas of Rockaway or Tillamook, Oregon? I have a family member moving to the area in a couple of months and dial-up service is NOT acceptable. Please contact me, preferrably off-List. Thanks! Ted Hatfield Edward J. Hatfield III, President E.J. Hatfield & Company 5142 Edgemoor Drive Norcross, GA 30071-4342 USA 1-770-209-9236 - Office 1-770-209-9238 - Fax 1-770-560-0736 - Sprint 1-678-457-8411 - Cingular 154*273*18 - NexTel -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Patrick Henry
If memory serves, the "Resistance is futile; you will be assimilated" threat was first uttered by one of the Borg, those galaxy hopping cyber-locusts introduced in one of the Star Trek TV series. It became poignant and memorable when Captain Picard (I can't remember the actor's name but I think it might have been Patrick something) himself was assimilated into the collective. George Rogato is, of course, correct concerning Patrick Henry's famous challenge. Ted -Original Message- From: George Rogato [mailto:[EMAIL PROTECTED] Sent: Thursday, April 26, 2007 7:53 PM To: WISPA General List Subject: Re: [WISPA] LEMMINGS? Being from Massachusetts and studying the American Revolution through out my youth, which is one exciting piece of history, Patrick Henry and "Give me Liberty or give me Death" has to be one of the cornerstone of my beliefs. Jeromie Reeves wrote: On 4/26/07, George Rogato <[EMAIL PROTECTED]: Jeromie Reeves wrote: On 4/19/07, Steve <[EMAIL PROTECTED]: as Patrick Henry once said "Resistance is futile. You will be assimilated." Who is Patrick Henry?? Didn't Patrick Henry say Give me liberty or give me death? Yes he did. Your chopping off my sarcasm tag misrepresents my words. The quote in my email was also by Patrick Henry. Steve attributed "Resistance is futile. You will be assimilated." to Mr. Henry but I do not remember him ever saying it (course I was a bit young back in the 1700's and my memory is not what it once was.). -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Multipath
Jim: The term "multipath" is commonly used to describe the condition wherein a sent signal "arrives" at an antenna through more than one path (by something in addition to or other than a non-obstructed, line-of-sight link). Microwave signals are subject to a number of degradation modes including reflection, diffraction and diffusion-if you apply those terms and physical conditions to light waves, some of the concepts may become clearer than at first blush. I like to explain multipath this way: If you have ever watched analog broadcast TV signals being delivered by an antenna, you have probably seen channels with ghosts (shadows) in the pictures. This occurs when the signal arrives at the antenna both directly and also having been bounced off one or more "reflective" surfaces enroute. The bouncing produces slight delays (among other propagation glitches) forcing the receiver to try to process and display the same information multiple times in each frame. While the effect of this problem is annoying in an analog video environment, it can be 'fatal' in a digital data context. Phase shifts, slightly delayed reception of the same packets, etc. can all "translate" as noise, and can kill the link altogether. Unfortunately there is a lot more to be concerned with in a digital microwave system than signal level alone, even though having too much or too little signal can itself be a show stopper. Signal quality is difficult to quantify without proper equipment but quality problems are no less "deadly" than levels problems. Hope this helps, as quick and dirty as it is. Best, Ted E.J. Hatfield & Company 1-770-209-9236 - Office 1-770-209-9238 - Fax 1-770-560-0736 - Sprint 1-678-457-8411 - Cingular -Original Message- From: Jim Stout [mailto:[EMAIL PROTECTED] Sent: Friday, April 13, 2007 10:37 AM To: WISPA General List Subject: Re: [WISPA] Power Lines in the LOS path Marlon, The SL2 is one of the newest radios from Tranzeo. It's part of the CPQ family, but it's a Slim Line (much smaller in size.) Up until this install, they have gone in easy, and run great! Can you explain the "multipath" phenomenon? Thanks, Jim Jim Stout LTO Communications, LLC 15701 Henry Andrews Dr Pleasant Hill, MO 64080 (816) 305-1076 - Mobile (816) 497-0033 - Pager -- WISPA Wireless List: [EMAIL PROTECTED] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] fm towers
Yikes-my bad! Apparently the S/N number under discussion is being calculated, not actually measured, and occurs after a CAT5 run down an FM broadcast tower? Well, no wonder! Apologies for previous (well intentioned but poorly predicated) advice . Ted -Original Message- From: Wireless Internet Service Providers Assoc. [mailto:[EMAIL PROTECTED] Sent: Saturday, March 31, 2007 8:52 AM To: WISPA General List Subject: RE: [WISPA] fm towers You could try replacing your CAT5 with shielded CAT5 cable and shielded RJ-45 connectors. Just my two cents worth Ty Carter -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jenco Wireless Sent: Saturday, March 31, 2007 1:40 AM To: WISPA General List Subject: Re: [WISPA] fm towers FM kills Ethernet. Inductors - Period. Set to 10 Mbps until then. Brad H -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Smaller dishes for 11 GHz, etc.
Ive been following this thread for several days but have been on the road
and havent had time until now to sit down and weigh inapologies.
Jack Unger obviously knows a good deal about this topic; his comments
highlight several relevant issues:
A) The factors which govern microwave path engineering are indeed cut and
dried, well proven and well understood;
B) Interference issues do go away during the licensing process itself,
well prior to hardware deployment. Jack defined this side of the equation
nicely, simultaneously illustrating why licensed spectrum is so valuable;
C) Antenna and radio manufacturers offer models varying in gain and price,
among other factors. (For example, weve successfully used 18 GHz, 400
MHz-wide paths to cross over a two hundred foot railroad ROW, and to go
farther than 13 miles). AGC/ALC and/or variable attenuation circuits have
been around for a LONG time and work very well. There is simply NO excuse
for a properly designed and licensed path to not perform correctly. Any
engineer who cannot design a link which fires up within 5 dB of a link
budget (remember, 3 dB means either halving or doubling the power) either
isnt particularly competent or was given bad data; and
D) As someone pointed out previously, each and every microwave path
embodies some unique circumstances, and a one-size-fits-all approach merely
demonstrates naiveté. Lots of people seem able to hang and activate
equipment, and make it work; smart operators who wish to build and
retain a satisfied customer base in an increasingly competitive environment
first take steps to ensure that the system will perform properly. It needs
to be said again: Problems with real world versus theoretical performance
are usually caused by bad field data or incompetenceat the engineering
and/or installation sideor both.
All of the above said, it makes little sense to me, in a forum such as this,
to delve too deeply into the arcane minutia of antenna design engineering.
Nonetheless, a few minutes of research in a good catalogue will demonstrate
that, for any given frequency band and design configuration, the general
rule is that the larger the antennas aperture, the more gain and the
sharper beamwidth the antenna producesthis same rule of thumb applies to
satellite antennas as well as to microwave dishes and grid packs. Thus,
regulations which either limit or mandate antenna design and size will
inevitably impose performance penalties upon system operators by eliminating
design options.
Folks, Ive been living in licensed space for many years, and have
installed more microwave systems than I care to remember between the 2, 4,
13, 18, 28, and 38-42 GHz bands. One of the most important things Ive
learned is that licensed spectrum is not a panacea, nor is it the
monster-under-the-bed its sometimes made out to be. Another key point is
that regulation is most definitely a two-edged sword, one that is ALWAYS
wielded by someone my business cannot control.
Therefore, it is important in my view that the limited resources of any
trade association be applied to matters which most directly benefit its
membersand comments from an association seem to carry more weight at the
FCC than those from a couple of individuals. Speaking broadly and generally,
almost ALL regulation of technology should be opposed or minimized to the
fullest extent possible. I try never to forget that regulation which
benefits my business today could easily lead to punitive mandates or
restrictions tomorrow while benefiting someone else
You all might also
consider talking to my old friend Andrew Kreig of the WCAI about a joint
responsesee http://www.wcai.com/.
Just my 2¢ (and then some, as usual!) Ted {:-)
Edward J. Hatfield III, President
E.J. Hatfield & Company
5142 Edgemoor Drive
Norcross, GA 30071-4342 USA
1-770-209-9236 - Office
1-770-209-9238 - Fax
1-770-560-0736 - Sprint
1-678-457-8411 - Cingular
154*273*18 - NexTel
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RE: [WISPA] fm towers
Nearly 40 dB of variations in the link S/N ratio? Holy cat crap, Batman! How accurate is the test equipment yielding that measurement? SNR variations of 40 dB means four orders of magnitude in signal levels relative to the noise floor, a 10,000:1 change in the power ratio. No wonder the bloody link isn't stable! Frankly I'm not inclined to trust the accuracy of those measurements over-much; it's been my experience that few people own or even have access to the kind of test equipment (like Network Vector Analyzers and Power Meters) required to properly trouble shoot microwave systems. But there obviously IS a problem. OK, now for the (hopefully) helpful part: My hunch is that the FM broadcast signal, being in relatively close proximity to your antenna mount, is generating harmonics or other spurious energy of sufficient power to overload the front end of your radio. (Sharp Q, ultra-deep microwave filters are expensive and I'd be very surprised if your radio was so equipped). So, the question before you is: How important is this site to your overall network? Is it worth the expense of having a properly trained and equipped microwave field engineer find and characterize the problem, and suggest some options for corrective measures? Sorry if this sounds a bit harsh but sometimes there aren't any easy answers to difficult problems . Hope this helps, Ted Edward J. Hatfield III, President E.J. Hatfield & Company 5142 Edgemoor Drive Norcross, GA 30071-4342 USA 1-770-209-9236 - Office 1-770-209-9238 - Fax 1-770-560-0736 - Sprint 1-678-457-8411 - Cingular 154*273*18 - NexTel -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, March 30, 2007 4:01 PM To: wireless@wispa.org Subject: [WISPA] fm towers mikrotik 5.8 ptp links off an FM tower. We have a ptp link with a signal to noise of 66 to 103. Our access points will only link for a few seconds and quit. we have the exact same links on other towers that work great and the one to this fm tower will not work. any suggestions? -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] DECT phones
I know that Hello Direct (hellodirect.com) carries some DECT products. Best, Ted Edward J. Hatfield III, President E.J. Hatfield & Company -Original Message- From: George Rogato [mailto:[EMAIL PROTECTED] Sent: Thursday, March 22, 2007 12:15 PM To: WISPA General List Subject: Re: [WISPA] Using DECT phones to avoid interference issues. Are they legal to use unlicensed in the US, and ...do you have a URL? :) Thanks George -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] My bad--apologies to the List!
Folks, I'm sorry about my most recent-incomplete-post. My wife's PC crashed while I was drafting the post and I must have hit "Send" instead of "Save" when I closed mine down. It was late-what can I say? Mea culpa! To finish the thought processes, "The Two 'S' Rule" refers to the essential components for successful implementations: Specifications and Supervision. What I want done has to be thoroughly and clearly specified and communicated to employees or contractors; later, the responsibility to follow through and ensure that I receive what I'm paying for is solely mine. As an old boss used to say, "What gets measured, gets done". If I don't check what's being done, I can't know what's being done, and the inevitable hit to my bottom line is nobody's fault but mine. Achieving success concerning your other point, Tom, is an even more difficult challenge. I've raised hackles for many years by pointing out that the two least trained and least motivated groups of employees in most technology-based service companies are the Installer and the Customer Service Representative. For some reason, 'managers' seem to have great difficulty justifying the investment in the training and remuneration factors which motivate the two sets of employees with, by far, the most day-in-day-out customer 'face time'. And I cannot expect field personnel to make good judgments if they don't understand what they're doing, and why, and if all they see and hear out of me conveys the business priority of speed over quality. Yes, it's a difficult balance to achieve. But, as my Dad used to say, "It's your business; manage it or lose it". In the face of high customer acquisition costs, such 'logic' is mystifying. Excepting emergencies and flukes, there is simply no excuse for sending under-trained, poorly motivated or poorly equipped folks into the field IF the goal is to grow a stable customer base. Customers have plenty of service provider options these days and the playing field is becoming more crowded every day. To put the concept into movie terms, if you botch it, they will leave! One last thing about courtesy wraps. The overall thickness of the weatherproofing "wall" is relatively constant, regardless if it's on LMR-400, LDF-7 or EW-20 (although it looks much larger on smaller cables). A layer of tape, one of mastic and four tape wraps should come out to be about the same 'depth' in any case, and the courtesy layer adds maybe 1/32nd of an inch to the ~3/8" finished total. Y'all have a great day! Ted Hatfield -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] Soapbox follow-on
Thanks for the kind words, Tom and Marlon. I knew there was a reason I liked
this List! {:-)
Tom, you've hit on a really good point, that system (installation)
specifications can be highly "personalized", which is the central issue of
the current courtesy wrap debate. In my experience, properly applied mastic
and outer tape wraps yield many years of trouble-free connector service
life, with or without the c. wrap. (? Would that be "crap" from another
perspective?) {:-) And, by the way, a properly applied courtesy wrap is
stretched tight and overlapped so that it is, in fact, another moisture
barrier.
That said, I haven't noticed that this wrap, or its lack, affects
weatherproofing performance at all. What the wrap DOES affect is the ease
with which a connector can be taken apart for service. Not only is the stuff
"fluid" and really gummy-especially at summer temperatures-but it must be
remembered that it is inherently an INSULATOR. Any bits which remain on
connector threads during re-assembly can impede fully circumferential
shielding, and it ain't that easy to get all of the silly goop cleared off
fine threads. And anything that keeps my sorry old butt hanging up on a
tower longer than "necessary" ain't a plus either . So, it's really more a
matter of personal preference than absolute right or wrong; I merely prefer
specifying a wrap. Make sense?
As to your next topic, you are definitely preaching to the choir! Your point
that it's easy to make hasty and unfounded judgments is well taken-we've all
been there at some point-but this seems to me to occur far less often,
especially in smaller systems, than your first example. Many years ago I had
a sign made for my office (mostly for the benefit of my staff) entitled "The
Two "S" Rule"
I've designed and presented training programs for many years
Edward J. Hatfield III, President
E.J. Hatfield & Company
5142 Edgemoor Drive
Norcross, GA 30071-4342 USA
1-770-209-9236 - Office
1-770-209-9238 - Fax
1-770-560-0736 - Sprint
1-678-457-8411 - Cingular
154*273*18 - NexTel
-Original Message-
From: Tom DeReggi [mailto:[EMAIL PROTECTED]
Sent: Monday, March 19, 2007 10:34 AM
To: WISPA General List
Subject: Re: [WISPA] Warning: Soapbox ahead ...
Ed,
Good post.
"Without the courtesy wrap, mastic will flow into every possible space--like
connector threads--and become a real nuisance when a connection has to be
taken apart."
What is the harm of the Mastic flowing into every space like threads? Is it
really that big a nuisance? We haven't had that much trouble pulling off the
Mastic on our broadband connection, and the fact that the Mastic fills the
thread means a water path no longer exist, sorta like Plumbers using that
white thread tape. Would you agree, that if someone doesn't mind the
nuisance, not using the courtesy wrap, would be one level better
waterproofing? I'm NOT saying Courtesy Wrap is wrong, just that it may be an
installer's preference for convenience. Are you finding it to be more of a
nuisance, on different size cabling? For example Telcos tend to use much
larger Coax, and as a result have MUCH thicker rolls of waterproofing and
Mastic, which may be harder to cut through, and therefore more relevant to
have the courtesy WRAP?
"I'm constantly amazed how many folks cannot seem to afford to "do things
right the first time" but seemingly can afford to do those same things over
another 2, 3 or more times."
I'll add that most often when things are not done adequately it is not a
decision of "Affording". Its an issue of "enforcement". The person
installing the gear is rarely the person responsible for the cost of the
repair after the fact, if one is needed. There fore people tend to be lazy,
and do the minimum to get the job done. I see it all the time. Installer
thinking, "Oops, I left my Mastic in the VAN, so I'll use more Super 88
instead, or throw some plumbers putty in there, nobody will ever know the
difference, at least for a year or so when a repair is needed, after I'm
long gone and paid." The problem with enforcement is that the only way to
tell if its done right is to undo the waterproofing (which is counter
productive) or wait, not even a photo can help, conclusively. Or when an
installer runs out of something, (because they didn't think ahead to stock
their van) does it justify a next day return visit to redo it with the
correct stuff? Or the day there is an emergency, the first available tech
gets sent to investigate, regardless if they are the one with the best
skills. I guess what I'm saying is... So many people inspect other's work
and pass judgment on it, without the information that is relevant on why it
may have been done that way. I can give
[WISPA] Warning: Soapbox ahead ...
Marlon, you're exactly right and that was a nice "catch" on your part. {:-)
Originally we were using customer-supplied materials on that project and the
quality of the electrical tape they provided was distinctly inferior to the
products we would have liked to use. It neither stretched properly nor stuck
well, nor did they initially like the idea of using mastic or of having a
courtesy wrap installed. But we finally penetrated the
arrogance-of-ignorance barrier, even though we wound up supplying the good
materials 'out of pocket'. But at least we never received (and had to 'eat'
the cost of) a call back--a very fair trade in my book!
That situation, however, raises some interesting thoughts. First, we always
try to stick with good materials, purchased from suppliers we know (from
whom we receive good service). One of the very best was inadvertently left
off my previous post. I've known Dana Lemmerman (Telecom Product Profiles,
765-427-5827, [EMAIL PROTECTED], www.telepp.com) for nearly 20 years and he
has consistently provided superb customer service. The Nello weatherproofing
kit (Part # 100347) is as high quality as anything on the market and I know
that Dana takes good care of his customers, service- and price-wise.
Next, some of our clients have felt the need to specify or supply inferior
materials and procedures, ignoring the advice/experience of folks who have
been installing RF-delivered services since: DARPA-Net was a "black"
project; communications satellites were quite literally the stuff of science
fiction novels; microwave links involved huge klystrons, 12' diameter
antennas, big waveguide, and cost many hundreds of thousands of dollars per
link; and a 'fully loaded' cable TV system had 12 channels and system signal
was transported via tube-type amplifiers mounted on telephone poles!
The point is that ignoring the hard-learned lessons of the past inevitably
means repeating old mistakes; the current discussions concerning
weatherproofing and cable types are merely the latest illustrative threads
I've followed in this List. To paraphrase Einstein, one cannot solve a
problem by continuing the behavior which produced the problem in the first
place.
Unfortunately, one size does NOT fit all in an RF environment, despite
simplistic and dogmatic statements to the contrary. And holding that "we've
always done things this way and it seems to be working fine" is logically
identical to claiming that continuing to run an overloaded circuit isn't
hazardous because the house hasn't burned down yet. If one is not capable of
A) doing the integration 'homework', [specifying the proper system
components for each intended application], B) performing the link budget
calculations to ensure proper system performance, or C) using proper
installation materials and practices, the long term prognosis for system
performance and customer satisfaction is not good. Six-9's and better long
term performance cannot be achieved by wishful thinking or bold
pronouncements; the 'big boys' learned this truth the hard way a LONG time
ago and their design/installation specifications are tight and inflexible.
Proper engineering and installation procedures maximize the potential for
cost effective operations in the long run as inevitably as cutting corners
generates costly service impairments and repair efforts. I'm constantly
amazed how many folks cannot seem to afford to "do things right the first
time" but seemingly can afford to do those same things over another 2, 3 or
more times. During nearly two decades spent in system operations, I learned
to hate the impact of this "dummy tax" on our bottom line, and how to
prevent it.
OK, exiting soapbox mode and re-entering training mode. The reason for the
courtesy wrap--installing one layer of electrical tape prior to the
application of the mastic--is because correctly installed mastic is
compressed so as to eliminate voids (air pockets which can trap moisture).
This compression takes place first during the proper application of the
mastic itself and is 'reinforced' by the stretched wraps of tape over the
whole connection area--most carriers have learned to require 3 or 4 full,
overlapped wraps of tape to both guarantee the seal and also to prevent the
tape from unraveling. Without the courtesy wrap, mastic will flow into every
possible space--like connector threads--and become a real nuisance when a
connection has to be taken apart.
Whew, that was fun. Now, as concerns tower structural issues, mounts,
safety, path performance, grounding and bonding ... {:-)
Ted Hatfield, President
E.J. Hatfield & Company
5142 Edgemoor Drive
Norcross, GA 30071-4342 USA
1-770-209-9236 - Office
-Original Message-
From: Marlon K. Schafer (509) 982-2181 [mailto:[EMAIL PROTECTED]
Sent: Friday, March 16, 2007 4:13 PM
To: WISPA General List
Subject: Re: [WISPA] Weatherproofing
Yeppers. The only things I'd have done differently is a little further down
on the coax and a higher quality black tape.
RE: [WISPA] Moisture Ingress
See: http://www.kenwoodtelecom.com/ Part number W9310KT contains 6 rolls of the mastic, 2 rolls of premium grade 3/4" tape and 1 roll of premium 2" tape, for about $16.00. Edward J. Hatfield III, President E.J. Hatfield & Company 5142 Edgemoor Drive Norcross, GA 30071-4342 USA 1-770-209-9236 - Office 1-770-209-9238 - Fax 1-770-560-0736 - Sprint 1-678-457-8411 - Cingular 154*273*18 - NexTel -Original Message- From: Travis Johnson [mailto:[EMAIL PROTECTED] Sent: Friday, March 16, 2007 1:49 PM To: WISPA General List Subject: Re: [WISPA] Moisture Ingress Well, kind of... it's more like a soft rubbery compound. You can mold it into any shape and it's very easy to work with... the only problem is getting it back off when the temp is below zero... that takes a little work... ;) Travis Microserv Brian Rohrbacher wrote: > I have never seen the stuff, but by looking it up, it looks like it is > kind of like clay. It that true? Is it moldable like clay? > > Brian -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] RE: Climbing Harness
Hi, Forbes. I have two additional thoughts for you concerning climbing
harnesses.
The first is that Dave Sovereen is definitely right: Unless you possess the
skills and equipment (and access to the records) to accurately assess the
condition of used climbing gear, whether yours, your employees or a
potential purchase, you are definitely wiser to purchase new equipment. Not
only does your life (or that of your employees) depend upon it but an
accident-caused by faulty or improperly utilized equipment-that results in
injuries, a fatality or even significant property damage can bring the wrath
of OSHA down upon your company (not to mention the inevitable feeding frenzy
from hordes of personal injury attorneys!) and easily ruin your company
financially.
Secondly, I buy all of my guys' equipment from CERTEX (
http://www.certex.com/CERTEX_Main_index.html ). They may not be the cheapest
source in the world but they handle only professional quality (translate:
fully OSHA-rated) gear, and their prices are very competitive due to their
large sales volume. Every one of their locations I've shopped in the past
was staffed by knowledgeable and helpful folks (and they carry some really
cool stuff!) {:-)
I hope that this helps, Ted
Edward J. Hatfield III, President
E.J. Hatfield & Company
5142 Edgemoor Drive
Norcross, GA 30071-4342 USA
1-770-209-9236 - Office
1-770-209-9238 - Fax
1-770-560-0736 - Sprint
1-678-457-8411 - Cingular
154*273*18 - NexTel
-Original Message-
From: David Sovereen [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 23, 2007 11:38 PM
To: WISPA General List
Subject: Re: [WISPA] Climbing Harness
www.midwestunlimited.com. The Elk River Eagle LE or LX harnesses are good
and comfortable at a good price-point. I would highly recommend NOT buying
a used harness. Your harness is to keep you from falling to your death and
you don't want to rely on a used harness that you don't know the complete
history/condition of.
Dave
- Original Message -
From: "Forbes Mercy" <[EMAIL PROTECTED]>
To: "WISPA General List"
Sent: Monday, January 22, 2007 3:44 PM
Subject: [WISPA] Climbing Harness
Hello Fellow WISP's
I need to purchase a tower climbing harness. If you have one to sell,
great, if you know of a company that sells them that would be great too.
Thanks,
Forbes Mercy
President - Washington Broadband, Inc.
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