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Member #203195

Member Since: February 14, 2011

Country: United States

  • I'm getting different TX levels (on pin 4) when I measure pin 4 directly on the EM-406A (from 1 vdc up to 3vdc) and when I measure the TX pin on the output of the evaluation board, < +.5vdc to > -5vdc. My application works fine when receiving signals from the eval. board but not direct from the GPS. Is this normal?

  • I purchased an EM-406A GPS with evaluation board. Got good nav "fix" in the basement right out of the box. Ultimately, I want to mount the EM-406A (without the evaluation board) in a vehicle which will supply NMEA data to my APRS Byonics "Pocket Tracker" -- which works fine on the bench when receiving data thru the DB-9 connector on the eval board -- but when operating the EM-406A without the evaluation board (even though the LED flashes indicating a GPS lock), the Pocket Tracker reports my coordinates as "!0000.000/00000.000". Any suggestions? Many TNX

No public wish lists :(