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| Thread ID: 110882 | 2010-07-05 12:02:00 | That iPhone problem | Billy T (70) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1116264 | 2010-07-06 10:13:00 | Part of the problem (as I understand from looking at some tech drawings of the phones antennae system) is that when held in a certain way you hand forms part of a loop, effectively bridging the connections between the 3G/HSDPA and the WAN/Bluetooth antennae. The signal interference triggers something in the the apple programming (not sure where but no one will ever find out because if they do apple will hunt them down with sawn off Mossbergs) This causes interruption in the DPS (I think its DPS, data packet streaming but I can't remember. article regarding stuff like that had weird acronyms) causing signal drop out and all sorts of errors related to bed connections. consider it like trying to D/L something with 60% packet loss | The Error Guy (14052) | ||
| 1116265 | 2010-07-06 10:22:00 | I'd also say any metal objects touching it would cause harmonics, probably not good as they could cause "harmful interference" which, according to the FCC is illegal. | The Error Guy (14052) | ||
| 1116266 | 2010-07-06 10:59:00 | Interesting comments. I'll just add that whether loop or two-part, the antenna will still be directional and have a distinct polar radiation pattern with front and rear lobes at right angles to the two elements and deep nulls off the ends of each element. Whichever way you look at it, at Ghz frequencies the antenna will be strongly directional, and to compound that, the hand holding it will also absorb significant radiation at those frequencies as well. It might take a while for Apple to dig their way out of this mess, or perhaps the faithful will forgive them their trespasses, and just live with the problem until the next 'must-have' model appears. Cheers Billy 8-{) |
Billy T (70) | ||
| 1116267 | 2010-07-06 22:16:00 | It might take a while for Apple to dig their way out of this mess, or perhaps the faithful will forgive them their trespasses, and just live with the problem until the next 'must-have' model appears. That pretty much sums up the fanboys. That said, it's not just unique to Apple, there's MS, Google ... |
Chilling_Silence (9) | ||
| 1116268 | 2010-07-06 22:30:00 | eh . the flaming starts . Post # 7 was hardly a 'flaming' . More a statement of fact . Yes, I own an iPhone, but it is certainly not the best phone I have owned (I'm a Palm fanboy, not an Apple fanboy, but Palm weren't bringing the Palm Pre downunder and now Palm have gone "downunder" themselves anyway . And HP are going to use the best ever smartphone OS developed for Tablets - meh!) . My choice of phone was limited at the time I was looking for a replacement for the Treo 650 (which was on CDMA) . I hate Windows OS phones, dislike Symbian and the Nexus One wasn't available in NZ at the time . So the only choice left was an iPhone . It has bricked on me twice (recoverable) - something my Palm NEVER did, so I am less than impressed with the hype around iPhones . So don't count me in the iPhone fanboy camp - as soon as I gather some cash and find a good replacement, the iPhone is gone . |
johcar (6283) | ||
| 1116269 | 2010-07-06 23:04:00 | Do you think it would make commercial sense to wait and wait and wait until the technology is perfect before they released a machine?? If every manufacturer did that we still wouldn't have cellphones, personal computers, cars, or television - you name it! The development process is an incremental one - a manufacturer releases once they have squeezed in as many features as they think users want using the technology available and that is 'affordable' (this can be subjective). I didn't see this as a flame either, but I make the point that antenna technology is not subject to significant development because it is bound by some very simple and fundamental rules. I'll acknowledge that "active antennas" with electronic steering and other enhancements are very hi-tech, but they don't appear in cellphones and cellular antennae are pretty basic. The most important requirement is that they be omni-directional because a mobile phone, by definition, is very rarely in a stable positional relationship to the cellsite antenna, in fact in boundary areas between cell site coverage patterns, a call can swap back and forth between two or more cellsites several times a minute. CDMA technology seems better suited to this aspect of cellular operation and I notice that TDMA calls are often badly broken up in this situation. I can often (but not always) tell who the cellular provider is by the call quality. Cheers Billy 8-{) |
Billy T (70) | ||
| 1116270 | 2010-07-06 23:44:00 | is very rarely in a stable positional relationship to the cellsite antenna, in fact in boundary areas between cell site coverage patterns, a call can swap back and forth between two or more cellsites several times a minute. When I lived in Greytown which happened to be in the middle of three cell towers the Nokia phone (5110 I think it was) was always dropping calls when it switched between them. My next Nokia didn't have the same problem but I certainly paid a lot more for it. |
mikebartnz (21) | ||
| 1116271 | 2010-07-06 23:55:00 | @Billy - Apple were advertising for Antenna Engineers recently. Could be an opportunity for you to give them the benefit of your experience - I'm sure they'd pay well, since they desperately need to dig themselves out of their self-dug hole in a big hurry. :) | johcar (6283) | ||
| 1116272 | 2010-07-07 03:08:00 | @Billy - Apple were advertising for Antenna Engineers recently. Multiple antenna engineers if I remember rightly. Go on johcar, join us on the dark side, we have cookies: www.c2s.co.nz |
Chilling_Silence (9) | ||
| 1116273 | 2010-07-07 03:19:00 | Do you recommend the spare battery? | johcar (6283) | ||
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