West Mountain Radio
Provided is an accurate and very unambiguous display of your
voltage, taking into account all of the above. There are three
LEDs: red overvoltage, green normal, and yellow undervoltage.
The points at which the LEDs change are set accurately to 11.5
and 15.0 volts. The selection of these points gives a reliable
indication of proper and safe operation of your power supply,
battery or alternator. A green or normal indication is all you need
to look for.
An undervoltage indication, shown by the yellow LED, is less than
11.5 volts. This should be safe for your radio, but may cause
improper operation. Low voltage on a modern radio can cause
a loss of phase lock and a frequency error. This is a definite
indication of a problem with the power source; a bad connection,
an unregulated power supply, a bad alternator or dying battery.
It is normal with most cars to have less than 11.5 volts when
cranking the starter motor.
A normal indication with the green LED illustrates, everything is
good and you are between 11.5 and 15.0 volts, don’t worry about
a thing.
A red overvoltage indication with the red LED is a warning,
DISCONNECT OR TURN OFF YOUR POWER SUPPLY
IMMEDIATELY! It is possible to overheat or damage a radio or
other equipment. An overvoltage will sound an audible alert; no
need to watch the LEDs to signal a problem.
The audible alert may be configured for only undervoltage or only
overvoltage, or may be disabled altogether. Simple place the P14
jumpers on under, over, both or none. Store the unused jumpers
for later use.
Note:
Due to the characteristics of the comparator chip it is
normal for the undervoltage LED to glow very dimly with a normal
or overvoltage indication. It is also normal for the LEDs to change
intensity while stepping through 10 precision points.
In the event of a bad power source or power connection, the
yellow LED may flash or come on during transmit. If this happens,
check the power source and connections. It is also possible for
RF from a transmitter to cause an electronically regulated power
supply to lose regulation and cause an overvoltage alert during
transmit. The RIGrunner is extensivly RF bypassed and should
actually cure this problem. If you do have an overvoltage condition
during transmit especially with a VHF high power amp, it is due
to inadaquate RF filtering on the DC lead of the amplifier, or poor
RF immunity of the power supply regulator circuit.
ADDITIONAL RESOURCES
Go to our support page for more
assistance:
http://www.westmountainradio.com/
supportrr.htm
Go to our OpTips page for connection tips:
http://www.westmountainradio.com/
optipsrr.htm
