Pin 3 is the Trimble send pin When the trimble is on and HC is off, Trimble repeatedly sends out 7FAB76ED937DF9959DF700 7FAB76ED937DF9959DF700 7FAB76ED937DF9959DF700 Then the HC is turned on. Hardi sends this 7F5F76ED937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF700 The Hardi sends this huge message. The begging of this message is the same as above 7F5F76ED937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF7FD7D9F77FB937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA77FFFB7FDFBB79DFFA77DF99B7DF7FD7D9F77FB937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF7FD7D9F77FB937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF700 Then Hardi sends this message 7F5F76ED937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA7BDBFFFBFF7BD7ED6DD00 Then we have this, seems to be a really broken message pieced together from different frames. Sent by trimble? Not sure 7F5696EDF77FF77FFFFFFFFFFFFBFBFBFBFBFBFBFBFFFFFFFFFFFDFF76ADE5999FF700 Then the first 7FAA message, sent by Hardi 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 trimble responds 7FAB76ED937BF9959BF700 hardi says 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 trimble says 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 Not sure who sends this? Its an 7FAA message so I think Hardi? 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA7BF9FF79377F99597F700 hardi sends 7F5F76ED9377A763A79F9FA77DF99397F700 trimble sends this same message as before 7FAB76ED937BF9959BF700 Then this message with lots of F's again. Not sure who sent it, probbaly trimble 7F5696ED9379FFFFFF9FFFBFBFBFBFBFFFFFFFFFFFFFFEFEFEFFFBBF76ED76EBE5999FF700 Hardi sends 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 trimble sends this same short message 7FAB76ED937BF9959BF700 hardi sends 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 trimble responds with 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 Then this message? Its a 7FAA so probably sent by hardi. Why are these messages always different lengths? 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA7FFEF76E59597F700 hardi sends 7F5F76ED9377A763A79F9FA77DF99397F700 trimble sends 7FAB76ED937BF9959BF700 When the HC is powered on, this is what the Trimble transmits 7FAB76ED937DF9959DF700 7FAB76ED937DF9959DF700 7FAB76ED937DF9959DF700 7FAB76ED937DF9959DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7FAB76ED9377F99597F700 7F5696ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF9978DF700 7FAB76ED937BF9959BF700 7F5696ED9379A79FA79FA79F When the HC is powered on, this is what the HC transmits 7F5F76ED937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF700 7F5F76ED937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF7FD7D9F77FB937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF7FD7D9F77FB937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF7FD7D9F77FB937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF700 7F5F76ED937DA79B91A39799A79F93A79F8DA79F8DA79F8DA79F8DA79F8DA79F8DA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA79D9BA77DF99B7DF7FD7D9F77FB937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED9377A763A79F9FA77DF99397F700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED9377A763A79F9FA77DF99397F700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED9377A763A79F9FA77DF99397F700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED9377A763A79F9FA77DF99397F700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7F5F76ED937BA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA77DF9999FF700 7FAA96ED9379A79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FA79FF99779F700 7F5F76ED9377A763A79F9FA77DF99397F700