Title: Great GPS, awful radio.
Product review: I purchased the 530 after finding out that a new firmware edition had come out. The GPS was working fine. The screen didn't blank out when using the radio. However, when I was using my radio to communicate with a Rino520, the voice transmission from my radio was garbled and had a lot of background noise. I verified the channel codes, even turned off the "scramble" mode and the radio still did not transmit properly. I could hear fine from my 530, I just couldn't communicate out from it.From the problems I've read about, it seems like Garmin still needs to work out some bugs and get quality control issues resolved.
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