Gtjojo189 wrote:
I bought one of these
http://www.ebay.com/...sd%3D280861393343%26 and it has been nice. (sorry about the long link).
On a separate note it seems my ipad is interferring with my garmin edge 500's signal from the quarq. I could be wrong, but when I'm streaming netflix the cadence will drop in and out, but I don't have this problem if I turn my Ipad off. Anyone else experience this? That stand looks tippy! Have you had any issues with it when there's a tablet dangling from the end?
As far as Quark (or any ANT+) cutting in and out when next to another "loud" 2.4GHz device, that makes some sense. To pull a direct analogy from my electronic warfare days, your iPad is receiving and transmitting barrage noise jamming in the 2.4GHz spectrum. Bluetooth and 802.11b/g (WiFi) all operate in this congested band and Netflix is congesting a lot of this spectrum with data streaming to the iPad and the iPad talking back to the router to acknowledge receipt of said data. My suggestion to you is to do three things, in the order listed, testing for improvement after each step.
#1. Set up your home router to use the very bottom WiFi Channel (Channel 1: 2412MHz) if you are using 802.11b/g. The bottom Channel is probably going to work better because ANT+ has the ability to operate slightly above the maximum b/g WiFi frequency of 2462-2484MHz (max is dependent on country. See
http://en.wikipedia.org/...ist_of_WLAN_channels for details). I had a very quick scan of the ANT+ data sheet (
http://www.sparkfun.com/...ic/ANT-UserGuide.pdf), and I think ANT+ has a certain amount of frequency agility in the 2.4GHz band between 2400MHz up to 2524MHz. I didn't glean from the data sheet whether the agility is determined at initialization, or whether it can re-assign a frequency on the fly, but it appears that there is some sort of duty cycle if the frequency it is trying to use is clobbered. Since ANT+ can operate above b/g's max frequency, moving the two protocols as far apart as possible should help.
#2. Simulcast your router on the 5GHz band if it has that option, then connect your iPad to the 5GHz signal.
#3. Turn off the iPad's Bluetooth if you don't need it.
Let us all know if this helps. I'd be curious to know what, if anything, worked.
Cheers,
Dave