SG-2000 MANUAL
94
The SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
©1995, SGC, Inc.
TEL: (206) 746-6310 FAX: (206) 746-6384
15.3
Marine Antennas
In general, power boats use whip antennas and sailboats use back stay or triadic
antennas. The placement of the antenna is not critical except that it should be
kept at least 3 feet away from the rigging.
Please refer to the following diagram for sailboat antenna placement information:
Sailboat Installation - Back stay
Insulators
Top of mast
4 feet
Deck
PVC pipe or
shroud cover
8"
Keep lower insulator as close to deck
as possible - just above tensioner.
Chainplate
Coupler
SGC recommends that the top insulator be placed 4 feet down from the top of the mast
to reduce the risk of lightning striking the radio antenna. In addition, we recommend
placing the lower insulator as close to the deck as possible and covering the exposed
backstay with a piece of small diameter plastic pipe (or a slip-on shroud cover) to
prevent risk of an RF burn if the antenna is touched while transmitting.
15.4
High Seas Direct™ Connections
High Seas Direct is a system which allows over-the-air HF dialing from a single
sideband radio transceiver from anywhere in the world into the AT&T long
distance telephone system via AT&T Maritime Services stations WOO, WOM,
and KMI.
While the AT&T descriptive literature covers some aspects of the service and
operation of the dial modem units, you or your marine radio technician will
need the following information to connect the AT&T system to an SG-2000:
The AT& T High Seas Direct product consists of two units: a handset which is
mounted near the radio; a modem unit which is typically installed in a less
accessible area. The following pin out information is provided: