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

“Jump start”: The solenoid will connect the batteries when
the main battery voltage is more than 1 V below the auxil-
iary battery voltage and the starter switch is closed. This is
the “jump start” mode. (An optional remote light could be
installed to monitor this condition.)
System protection: The Smart Solenoid protects the charg-
ing system by opening the circuit between the main and
auxiliary batteries if the charging system voltage drops
below 12.8V even when the engine is running.
Benefits
This system offers several benefits. Probably the most
important is that the auxiliary battery can be located adja-
cent to the 500-watt system, saving much labor and expense
in the power cabling necessary to provide the high current
demanded by the radio system. Additionally, this method
provides a fully charged backup battery in the event that
either one of the batteries is accidentally discharged.
As you can see by Figure 4, the solenoid connects the main
and auxiliary batteries together to provide a “jump start”
feature.
Difference from previous SGC publications. SGC
addressed the mobile power supply in a different and less
effective way in the SG-500 SmartPowerCube manual (Sect.
7.3 and 7.4) We now recommend the solenoid installation
described above.
Evaluating Batteries
Lead acid battery. The lead acid battery in your vehicle is
specifically designed to provide to the starting motor high
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© 1997 SGC Inc.
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
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