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Karl replied to Muthanna Alwahash's discussion No signal on APM2.0 UART0 and XBEE issue
"My 2.4.1 board appears to have no micro traces in place (I have a second that is identical with no traces) and the UART does not work. Can connect with USB and flies fine, have a separate issue with the TX/RX LED's that I think may be related. Can…"
May 23, 2012
Karl replied to Jonathan M's discussion APM 2 GPS not getting a lock?
"The main issue that I found with the onboard GPS is that it is sensitive to anything that can shield the signal, which is above the GPS module (even the odd RC cabling) and secondly the proximity of the reciever, which in my case Optima 7, due to…"
May 23, 2012