Operating Manual
the connector chosen. Typically amplifiers and 100 watt
RF output transceivers should be first, VHF radios next and
smaller accessories last.
Multiple amplifiers and/or transceivers may be connected
to the RIGrunner. There is a 40 amp maximum that would
be exceeded if trying to transmit all connected units at
once. Most radios and amplifiers draw less than 3 amps in
receive, but require many more amps in transmit. Therefore,
the limiting factor is total current draw while transmitting.
To determine how many radios may be used to transmit at
one time, consult the radio manual for power consumption
specifications. In the event that the total current goes over
the 40 amp maximum, a fuse will blow or make an undersized
power supply unhappy. The RIGrunner and any equipment
plugged into the RIGrunner should go unharmed.
Voltage
The 4004U, 4006U, 4008 and 4012 operate from 11.5 to
15V. Contact West Mountain Radio for special versions of
these RIGrunners for other specified voltages.
The 4005, 4005H, and 4008H can operate on positive
voltage systems up to 48V. Contact West Mountain Radio
for negative voltage system devices.
Using the proper fuses
The RIGrunner comes supplied with a range of fuses
installed. This assortment should be suitable for most
stations, but can be changed easily. Every RIGrunner
output is safe up to 40 amps, but the total allowable is also
40 amps.
A fuse
MUST
be in each position in use.
ANY ATTEMPT
TO BYPASS OR SHORT ACROSS THE FUSES
IS DANGEROUS AND VOIDS THE RIGRUNNER
WARRANTY
. Since the maximum available automotive fuse
is 40 amps, the RIGrunner will be protected as long as any
value ATC/ATO fuse is installed. Choose the correct fuse for
your equipment. Standard ATC/ATO automotive blade fuses
are used. These fuses are available in 10 values ranging
from 1 amp to 40 amps.
The DC input should have a fuse that is appropriate for
the power supply rating. If using a smaller power supply,
consider using a lower value fuse than the 40 amp value
supplied. Ideally all of the outlets should have a fuse that
is the next higher value above the maximum current draw
of the unit on that fuse. If using a power cord with a fuse,
match that value or go one or two values higher. Sizing each
fuse for each unit is desirable, but not absolutely necessary.
Having a higher value than the minimum will offer less
protection for that unit, too low a value and the fuse will blow
out prematurely.
Note that each fuse position has a LED blown fuse indicator
that will conveniently light up if an output fuse is blown.
There must be power to the RIGrunner and a load on the
circuit that has the blown fuse for the blown fuse LED to
light.