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04-03.-2007, 11:59 AM
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#1 |
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Registered User
Join Date: Mar 2007
Posts: 1
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Garmin Forerunner 305 across Sydney Harbour Bridge
Hi,
I wonder if any one is using a Garmin Forerunner 305 and regulary cross the Sydney harbour Bridge I currentlly have a Polar s540 and find that everytime I hot the bridge the speed and heart rate goes haywire, I am assuming this is because of the Power Rails from the trains. My cycle to work and back crosses this everyday and I find it quite frustrating. I was thinking of upgrading to the Garmin or an alternative that works. Does anyone have any recommendations |
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04-03.-2007, 01:37 PM
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#2 |
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Registered User
Join Date: Jul 2006
Location: Sydney
Posts: 128
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Re: Garmin Forerunner 305 across Sydney Harbour Bridge
I don't think you'll find anything that works reliably over there. It's surprising the bikes don't light up
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05-03.-2007, 09:27 AM
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#3 | |
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Registered User
Join Date: Mar 2004
Location: Sydney, Australia
Posts: 2,179
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Re: Garmin Forerunner 305 across Sydney Harbour Bridge
Quote:
Always sends my Polar 720 crazy right there.
__________________
"All that we see and seem is but a dream, within a dream..." |
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06-03.-2007, 03:02 PM
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#4 |
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Registered User
Join Date: Jan 2007
Location: Sydney
Posts: 230
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Re: Garmin Forerunner 305 across Sydney Harbour Bridge
I have an echowell F7 speedo and Ruby 100 HRM. Never had a glitch from either and I cross The Coathanger twice a day. The speedo isn't wireless, but the HRM is. Might have something to do with the frequency the Polar units operate at.
The trains run on about 6kV but it's direct current, so the RF impact should be minimal. There's a transformer substation housed at the southern end - that may be a more likely culprit. |
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06-03.-2007, 07:20 PM
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#5 |
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Registered User
Join Date: Aug 2006
Location: Sydney, AU
Posts: 2,132
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Re: Garmin Forerunner 305 across Sydney Harbour Bridge
Ridden across the coat hanger quite a few times, never had problems with my VDO wireless computer. It's a digital based system though. Maybe analogue systems are more susceptible.
__________________
Morphed Bianchi Camaleonte IV 2006, Ridley Damocles 2006, Garmin, Mac 
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07-03.-2007, 09:58 PM
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#6 | |
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Registered User
Join Date: Jul 2005
Location: Strathfield, (Sydney), Australia
Posts: 813
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Re: Garmin Forerunner 305 across Sydney Harbour Bridge
The HRM function of my Edge 305 works fine there....
Quote:
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08-03.-2007, 04:37 PM
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#7 |
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Registered User
Join Date: Apr 2006
Location: Ashfield, Sydney, NSW, Australia
Posts: 1,709
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Re: Garmin Forerunner 305 across Sydney Harbour Bridge
Apart from the trains, there is a host of cables running along side the former fence, just inside the stupid one they put up.
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