Technical information
Table Of Contents
- GoMobile Cover
- SGC – The SSB People
- Go Mobile at 500 Watts
- T a b l e o f C o n t e n t s
- I n t r o d u c t i o n
- C h a p t e r 1 C h a n g e s i n M o b i l e R a d i o
- C h a p t e r 2 O r i e n t i n g Y o u r s e l f t o 5 0 0 W a t t s
- C h a p t e r 3 DCP o w e r S u p p l y S y s t e m f o r a M o b i l e I n s t a l l a t i o n
- C h a p t e r 4 A n t e n n a s a n d G r o u n d s
- C h a p t e r 5 N o i s e S u p p r e s s i o n a n d S h o c k -M o u n t i n g
- C h a p t e r 6 I n s t a l l a t i o n P r o c e d u r e s
- C h a p t e r 7 I n s t a l l a t i o n V a r i a b l e s
- C h a p t e r 8 G o i n g M o b i l e a t 1 5 0 W a t t s
- Appendix A — QMS S y s t e m
- A p p e n d i x B — S e l e c t i o n o f E q u i p m e n t
- A p p e n d i x C — T e s t D a t a
- It all Adds Up
lem, fasten the ground system very tightly using self tapping
sheet metal screws and large copper washers (to give maxi-
mum surface contact). Then lightly dust the area with
Krylon™ matte finish or other clear varnish to provide some
corrosion protection.
Hinged openings. The doors, hood, and trunk lid should all
be grounded to the vehicle using size #0 (AWG) braid or
larger. It is important that all parts of the vehicle be bonded
together in this fashion.
Exhaust pipe. Take care to ground the vehicle exhaust pipe
in several places. If the exhaust pipe is only partially
grounded and the car encounters vibration, the vibrating tail
pipe can cause irritating electrical noise.
Static cling. Vehicles operating in areas of dry, blowing
sand, may occasionally experience static build-up on the
vehicle. You may also encounter this phenomenon in a vehi-
cle operated in cold dry climates in the winter months. A
static spray (such as is sold in department stores for use on
clothing) or other commercially made products may reduce
static.
Tires. Tires rolling on pavement may produce static electric-
ity under certain conditions. Although not usually encoun-
tered on vehicles using semi-metallic brake pads and disk
brakes, it has been known to happen on older style large
military vehicles where the axle shaft is insulated from the
wheel. Commercial brush kits are available to resolve this
condition.
Bumpers. Vehicle bumpers may be made of plastic or plas-
tic-filled metal shells which attach to the vehicle using elec-
trically unreliable fasteners. In many cases, a metal bumper
may look like it is grounded but in fact is not.
Moreover, vehicles may have bumpers put on at the assem-
bly plant after a coat of paint or protective finish has been
sprayed on the body. Such sound engineering for rust pre-
vention may impede HF radio work because the paint layer
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SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
P.O.Box 3526, 98009 Fax: 425-746-6384 or 746-7173 Tel: 425- 746-6310 or 1-800-259 7331
E-mail: SGCMKTG@aol.com Website: http://www.sgcworld.com
© 1997 SGC Inc.