Pacific
Crest
Corporation
ADL
Vantage
User’s
Guide
16
Tips
and
Techniques
for
Best
Performance
Antenna
Antenna
placement
is
critical
for
good
performance.
Range
and
coverage
is
directly
proportional
to
the
height
of
the
transmitting
and
receiving
antennas
in
addition
to
antenna
gain.
Where
possible,
select
a
reference
station
location
that
takes
advantage
of
terrain
to
get
the
transmitting
antenna
as
high
as
possible.
Always
use
the
telescoping
antenna
mast
and
raise
the
antenna
as
high
as
is
practical
and
safe
given
terrain
and
wind
conditions.
Do
not
use
a
gained
antenna
if
doing
so
increases
the
radio’s
Effective
Isotropic
Radiated
Power
beyond
the
limit
of
your
license.
Line
Loss
Line
loss,
produced
by
RF
or
antenna
cables
that
connect
the
radio
and
antenna,
decreases
the
output
power
(Wattage)
transmitted
by
the
antenna,
thereby
decreasing
the
signal’s
range.
To
minimize
line
loss,
please
check
the
loss
‐
per
‐
length
of
cable
to
be
used.
For
every
3
dB
of
line
loss,
the
output
power
(Wattage)
will
decrease
by
half.
For
example,
if
you
had
a
35
W
radio
and
had
a
line
loss
of
3
dB
in
your
cable,
the
output
power
would
be
17.5
W,
thereby
reducing
the
range
of
the
radio’s
signal.
Every
6
dB
of
loss
will
reduce
the
radio’s
effective
range
by
50%.
Power
Supplies
Maintain
batteries
in
a
fully
charged
state.
They
will
last
longer
if
they
are
not
allowed
to
become
completely
discharged.
We
recommend
routinely
connecting
the
battery
to
its
charger
after
every
working
day
and
for
24
hours
every
3
months
during
period
of
non
‐
use.
This
will
assure
optimal
performance
and
long
battery
life.
Equipment
Care
Routine
equipment
care
will
prolong
the
life
and
reliability
of
your
ADL
Vantage.
Radio
communication
equipment
is
susceptible
to
damage
from
shock
or
environmental
extremes.
Never
operate
the
ADL
Vantage
outside
the
operating
specifications
contained
in
Appendix
C.
Error
Codes
The
ADL
Vantage
performs
a
variety
of
power
‐
up
and
run
‐
time
tests
to
assure
optimal
operation.
Tests
include
environmental
as
well
as
electrical
measurements
designed
to
avoid
damage
to
the
unit
while
maintaining
adequate
operation.
In
the
event
of
an
error
condition,
an
error
code
is
displayed
on
the
LCD
screen
and
the
PWR
LED
flashes
the
number
of
the
error
code
(two
flashes
for
Error
Code
02,
followed
by
a
pause,
two
more
flashes,
etc.).
Table
3
lists
the
possible
error
conditions.
