I don't know if you've looked at the like of Specialized P bikes, Transition Vagrant, Banshee Scirocco, Santa Cruz Chameleon, Kona Cowan, GT Ruckus etc etc depending on budget and taste. It looks like you have already looked into your options, so just go for something else that offers a few more sizes or has a better TT for your height. In the end it's versatile like I wantedl. But I'm around 5ft7 and ride the regular STP with 50mm stem (and otherwise the Small size XC bikes with a short stem). For a start I found a longer seat post was a requirement and also had to have some set back in it - kind of feelt like the cranks were under me too much compared to the other bike (for trail riding & pedal efficiency that is). The STP feels noticeably different compared to something like a Giant XC hardtail. Basically a stronger frame that can take a bit more travel up front as well is what I wanted but I didn't want a bike as heavy as the Norco Rampage (which is another alternative and the first one I thought would have been ideal). A twisted pair can be used as a balanced line, which as part of a balanced circuit can greatly reduce the effect of noise currents induced on the line by coupling of electric or magnetic fields.I've brought one for the same sort of reason, a bit of versatility as I decided to stick with a HT but wanted to have a go at some DH and probably some jumping eventually (If I get around to building some jumps at our place). The idea is that the currents induced in each of the two wires are very nearly equal. The twisting ensures that the two wires are on average the same distance from the interfering source and are affected equally. It is being followed by 10 members and rated by 6 fans of the Giant STP 1. The noise thus produces a common-mode signal which can be cancelled at the receiver by detecting the difference signal only, the latter being the wanted signal.Ĭommon-mode rejection starts to fail on untwisted wires when the noise source is close to the signal wires the closer wire will couple with the noise more strongly and the receiver will be unable to eliminate it. This problem is especially apparent in telecommunication cables where pairs in the same cable lie next to each other for many miles. Twisting the pairs counters this effect as on each half twist the wire nearest to the noise-source is exchanged. Provided the interfering source remains uniform, or nearly so, over the distance of a single twist, the induced noise will remain common-mode. The twist rate (also called pitch of the twist, usually defined in twists per metre) makes up part of the specification for a given type of cable. When nearby pairs have equal twist rates, the same conductors of the different pairs may repeatedly lie next to each other, partially undoing the benefits of twisting. For this reason it is commonly specified that, at least for cables containing small numbers of pairs, the twist rates must differ. In contrast to shielded or foiled twisted pair (typically S/FTP or F/UTP cable shielding), UTP cable is not surrounded by any shielding. They are great in warranty (if in the event you ever need it) and are going to be around for a while. UTP is the primary wire type for telephone usage and is very common for computer networking. Just like all GIANT bicycles, including the STP1, you get a GREAT parts spec on their complete bikes for the money. The earliest telephones used telegraph lines which were single-wire earth return circuits. In the 1880s electric trams were installed in many cities, which induced noise into these circuits. In some countries, the tram companies were held responsible for disruption to existing telegraph lines and had to pay for remedial work. For new installations, however, it was necessary to protect against existing trams from the outset. Interference on telephone lines is even more disruptive than it is on telegraph lines. Telephone companies converted to balanced circuits, which had the incidental benefit of reducing attenuation, hence increasing range.Īs electrical power distribution became more commonplace, this measure proved inadequate.
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