Where can you get one for $80 Sent from my iPhone
On Aug 12, 2013, at 12:32, Cameron Crum <[email protected]> wrote: > Or just invest in an $80 cable tension gauge. These can fit in your toolbox > or your glove compartment. Why would you want to guess at this? > > > On Mon, Aug 12, 2013 at 12:27 PM, Kristian Hoffmann <[email protected]> > wrote: >> If you just need a tuner... >> >> https://play.google.com/store/apps/details?id=org.cohortor.gstrings >> >> It works on guitars and violins, so I guess it'll work on your tower. >> Strange. >> >> -Kristian >> >> On 08/12/2013 10:21 AM, Matt Hoppes wrote: >> > You can use one of these: >> > http://loosnaples.com/how-to-use-pt-series-tension-gauges >> > >> > Or do it by sound! >> > >> > All you need is a small tape recorder and a 3 ft piece of 2 by 4 lumber. >> > >> > Cut two small blocks off the ends of the 2x4, and nail them to the ends >> > of the long piece, on the side. File or saw a "v" notch in the small >> > blocks, along the long axis, so the guy wires can sit in the notches. >> > This forms two bridges, so that when the 2x4 is placed agains the guy >> > wire, it can be "plucked" to produce a vibration. >> > >> > Now you need to "calibrate the instrument". Take a piece of the same >> > guy wire, hang it from any tree, tower, frame, swingset, anthing you >> > can find overhead that can support about 300 lbs. Form a loop in the >> > guy to put your foot in. >> > >> > If you step in the loop and hang you will tension the guy to your >> > weight. (say about 200 lbs). While under tension, perhaps from a >> > friend, place the 2x4 against the wire, and pluck it like a guitar >> > string. Record the tone on your tape recorder several times. Hint: >> > placing the recorder directly on the 2x4 helps capture the tone. >> > >> > Now, while you tension your tower guys wires, place the 2x4 against the >> > guys, and pluck them in the same way, listening to the tape recorded >> > tone. When the tension is the same as your weight, the tones will be >> > equal. >> > >> > If you want to double the tension to twice your weight (say to 400 lbs), >> > the tone will have to be twice the frequency. There are several ways >> > to do this. >> > >> > One is to make another bridge from a notched block of wood, and place >> > it at 1/2 of the original separation distance. Another (if you have a >> > sound card and microphone) is to use your computer to measure the >> > frequency, and then produce one with twice that frequency with a tone >> > generator. Record that frequency on your tape recorder, >> > and use it in the field for the 400 lb "note" >> > >> > >> > Matt Hoppes >> > Director of Information Technology >> > Indigo Wireless >> > +1 (570) 723-7312 >> > >> > On 8/12/13 1:17 PM, Andris Bjornson wrote: >> >> Hi all, >> >> >> >> I'm looking for a field expedient (read "not requiring fancy tension >> >> meters and special equipment") to evaluate whether guy wires on towers >> >> are undertensioned. >> >> >> >> I'm currently deploying a wireless project in Northern Uganda on >> >> locally fabricated towers. The engineer who built the towers is very >> >> good, and was able to provide structural calculations for each tower. >> >> He does very nice work, and by and large I'm very happy with the >> >> product. >> >> >> >> Someone has mentioned a method to me in the past involving plucking >> >> guy wires and watching the pulse rate....but I didn't get any numbers >> >> on what's good and what's bad. >> >> >> >> Any help greatly appreciated! >> >> >> >> Andris >> >> >> >> >> >> >> >> >> >> >> > _______________________________________________ >> > Wireless mailing list >> > [email protected] >> > http://lists.wispa.org/mailman/listinfo/wireless >> >> >> _______________________________________________ >> Wireless mailing list >> [email protected] >> http://lists.wispa.org/mailman/listinfo/wireless > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless
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