Sounds like you invested in the AnywhereMap lifetime update subscription Frank and you're gonna get your money's worth no matter what.
I agree with you that the ATC has got glitches and bugs which may get fixed over time. That's what they say, although with the most recent software upgrade they seem to be going backward instead of forward.
If I could see the **** thing I might be more tolerant.
I've only got one other GPS to compare it to. Backlights both full on.
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AnywhereMap actually advertises this thing as sunlight readable.
I invite you to post a picture of yours in direct sunlight such as in the attached picture. A picture says more than any number of words.
The Lowrance has a reflective screen like the monochrome/grayscale screens, although it's color. It doesn't depend solely on backlights to make it readable in sunlight. The backlights on the ATC are brighter than the 600C, something apparent if compared at night. So it's not weak backlights that makes the ATC sunlight unreadable. It's the design of the screen, and I see no way of that ever getting fixed until they go to the ATC Model II with a reflective screen like it should have had in the first place.
AWM took an inexpensive car GPS from HP and installed their software. BK did the same thing with the MIO, another car GPS. Both of them are unresponsive, glitch-riddled toys.
I agree the 22 channel GPS receiver that comes in the Ipaq 310 is excellent. Anything you buy these days is going to be excellent. The 2? year old 16 channel receiver in the 600C is excellent. It too will lock on in the hanger. The chipset in the HP is more sensitive, but receiver sensitivity is not a very important issue these days. People who rave about their 496's are using an ancient 12 channel receiver.
I just received a shade today for my ATC, bought off of eBay. I'm hoping this will make it useable. I do like some things about it, such as the daily airspace & fuel price updates. I'm going to Scottsdale in a couple days and found a number for an FBO there on the ATC that was not on Airnav. So I really want to like it, as anyone who has followed my posts on the AOPA threads can attest. My change of heart is strictly due to my experiences in trying to use it.
It's got some good things about it, which is why I've not tried to send it back or sell it. If I can somehow get it so the screen info is readable, I'll report that too.
Mike