This item is available, but a lead time of 5 to 10 days may be needed to fulfill your order.Please give us a call if you if you would like more specific information about the item you need. 954-763-6533

This contains the specific information needed for any mariner to fully operate the Sailor/Sperry GMDSS equipment. It also provides additional information that will be extremely useful in picking specific modes and frequencies for effective communications