I am looking for recommendations for a handhled GPS to be used as a back-up for my built in RayMarine unit. I'm looking dor something that has the following features:
1. color charts;
2. accepts external antenna, as i will be using this unit under a Bimini or in the cabin as an achor drag alarm;
3 has good battery life;
4 can be used on land for hiking or driving.
1. color charts;
2. accepts external antenna, as i will be using this unit under a Bimini or in the cabin as an achor drag alarm;
3 has good battery life;
4 can be used on land for hiking or driving.