Anyone had problems with the KiPass keyfob losing range?

[2kwacks]

my gtr is 2 years and 1 month old and up to date had no problems with the kipass system but did need to change the fob battery just before it was 2 years old, so the battery life for the fob battery seems to be 2 years only a few quid to buy and less than 5 minutes to changed so who gives a  but not looking forward to replacing the tyre sensor battery I know for a fact.. that it will cost £250.00 to replace the whole sensor and reprogram it to the e.c.u. what was kawasaki thinking off.. when one of their "bright sparks" designed a sensor with batteries that cost few quid with a design where they can't simple be replaced like the fob batteries when you have a new tyre fitted. As far as I'm concerned, this is the only thing that lets the gtr down. I know some of us are planning on D.I.Y soldering, but is it with the hassle well I think let's say you remove the wheel and use your own tyre machine if you've got one! then you solder 2 new batteries in place, put the wheel back on and the dam thing doesn't work or you take the wheel off and take to the dealers, I doubt very much the dealer will wait why you try to solder new batteries in place, even if you know the dealer and he allows you to solder 2 batteries in place and he refits the tyre, then if the sensor dosen't work when you refit the wheel yourself you can't be sure if the dealer as damaged the sensor or you've bollock the soldering up I've recently had a front new tyre fitted, I told the tyre fitted at the dealers to run my bike around the block to confirm the front tyre sensor is working how it should because if it's not after you've fitted the tyre I will expect you to refit a new sensor. I was not surprised when he said.. I allways insist on test riding all gtr's before new tyres are fitted. he said he's fell for that one before and dosen't intend on getting bit twice.

[Kwikasfuki]

So it seems, and I cannot quite believe I am actually going to type this, that the problem is my iPhone. If I walk up to the bike, press the stove key, 25% of the time the bike will unlock. But, if I remove said iPhone from my pocket, tada, 100% success rate.

Now, the phone is very close to the keyfob, although in a different pocket. Never happened with my Blackberry which I changed 3 months ago.

More testing required, but I do believe the phone to be the root cause. Very odd, as I would expect the BB and iPhone to use the same radio frequencies as they are on the same mobile network.

Martin.

Simple solution Martin. Dump the iPhone!

[pistole]

- maybe a parallel experience for your IPhone - with the Ducati Diavel , owners here were specifically warned not to keep their FOB together with their handphone. This resulted in some failure on the part of the bike to recognise the FOB.

.

[Boomer]

The fob transmits/receives at 433Mhz so anything that also transmits(overpowers), receives or resonates(absorbs) at that frequency will limit the range.
In the USA they use 315mhz instead so they get interference from a "speedpay" system that is fitted to some petrol station pumps. 

At a guess I would say that your iPhone internal antenna arrangement is blocking some of the signal from the fob.
The arrangement in a BB will be very different.
Either that or else the iPhone uses a different heterodyne circuit that is tuned to 433Mhz somewhere along the line.
If I put my Samsung Galaxy S2 & HTC Desire in the same pocket as my fob it reduces the range but still works when I'm sat on the bike.
If I put the phones in a different pocket that is right next to the KiPass pocket then KiPass works up to about 6 feet from the bike.

All phones are different even if the channel they communicate on externally is the same.
I could go into details but I doubt many would be interested in a lecture on radio design and the complexity of modern smartphones. 

[trousersnake01]

That is really interesting about fobs and phones. Mine are normally together in my tank bag. Tonight I placed the fob in the tank pocket storage thing which was now under my tank bag and twice the dash threw up 'No Transponder'.

And as for the bloody wheel sensors, take it out and fit a normal valve stem and then you can repair it at your leisure and do a good job.
Hassle I know but should last a couple of years. Mines an 09 and when I start up and its really cold weather it always says low battery but this goes off when tyres get warm.