8
FT-1900E O
PERATING
M
ANUAL
Cabin
Engine
Room
FT-1900E
Battery
RED: Positive (+)
BLACK: Negative (–)
13.8V
15A FUSE
15A
Mobile Power Connections
To minimize voltage drop and avoid blowing the vehicle’s fuses, connect the supplied DC
power cable directly to the battery terminals. Do not attempt to defeat or bypass the DC
cable’s fuse - it is there to protect you, your transceiver, and your vehicle’s electrical system.
Warning!
Never apply AC power to the power cable of the FT-1900E, nor DC voltage greater
than 15.8 Volts. When replacing the fuse, only use a Vertex Standard’s 32 V/15 A
fuse. Failure to observe these safety precautions will void the Limited Warranty on
this product.
Before connecting the transceiver, check the voltage at the battery terminals while rev-
ving the engine. If the voltage exceeds 15 Volts, adjust the vehicle’s voltage regulator
before proceeding with installation.
Connect the
RED
power cable lead to the
POSITIVE
(
+
) battery terminal, and the
BLACK
power cable lead to the
NEGATIVE
(
–
) terminal. If you need to extend the power cable,
use #12 AWG or larger insulated, stranded copper wire. Solder the splice connections
carefully, and wrap the connections thoroughly with insulating electrical tape.
Before connecting the cable to the transceiver, verify the voltage and polarity of the
voltage at the transceiver end of the DC cable using a DC voltmeter. Now connect the
transceiver to the DC cable.
I
NSTALLATION
Mobile Speakers
The optional
MLS-100
External Speaker includes its own swivel-type mounting bracket,
and is available from your Yaesu dealer.
Other external speakers may be used with the
FT-1900E
, if they present the specified 4-Ohm
impedance and are capable of handling the 3 Watts of audio output supplied by the
FT-1900E
.
M
OBILE
I
NSTALLATION
WARNING!
· Never remove the FUSE holders from the DC cable.
· Use only a Vertex Standard’s 32 V/15 A fuse.
