Technical information

Wire size. Use the largest wire size practical for power
wiring. We recommend power lines from the battery to the
radio of at least #6 gauge stranded wire and that the ground
of the battery be cleaned periodically to make as good a con-
nection as possible. Long wire runs will cause loss. We rec-
ommend no 12 VDC run of more than 25 feet.
Figure 6 — Minimum wire gauge recommendations
in DC installations
Ground connections. The
grounds from the radio
chassis, from the coupler
ground post, and from the
battery minus terminal
should all be attached in
two places, preferably
using braided wire of #0.
Raw metal. The connec-
tion to the vehicle chassis
should be cleaned of paint
and should be scraped to
reveal raw metal. If corro-
sion is likely to be a prob-
21
© 1997 SGC Inc.
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331
E-mail: [e-mail] Website: http://www.sgcworld.com
18
0 10 20 30 40 50 60
00
0
2
4
6
8
10
12
14
16
POWER CABLE LENGTH IN FEET
Examples:
a Ñ 100W SSB gauge 8 for 12V operation
b Ñ 150 W SSB gauge 6 for 12V operation
c Ñ 500 W SSB guage 4 for 12V operation
32 VDC
24 VDC
12 VDC
b
c
a
Figure 7 — Scrape to bare metal
before bolting down
ground