Vertex Standard FT-2800M - Manual (Page 15)

13 FT-2800M O
PERATING
M
ANUAL
EXT SP Jack
This 2-contact mini 3.5-mm mini phone jacks provide receiver audio output for an op-
tional external speaker. The audio impedance is 4 Ohms, and the level varies according
to the setting of the front panel’s VOL control. Inserting a plug into this jack disables
audio from the transceiver’s internal speaker.
13.8V DC Cable Pigtail w/Fuse
This is the power supply connection for the transceiver. Use the supplied DC cable to
connect this pigtail to the car battery or other DC power supply capable of at least 10
Amperes (continuous duty). Make certain that the red lead connects to the positive side
of the supply. The fuse is 15-A.
ANT Coaxial Socket
Connect a 144-MHz antenna to this type-M (SO-239) socket using 50-ohm coaxial
cable and a type-M (pl-259) plug. Male sure the antenna is designed specifically for use
on the operating frequency.
R
EAR
P
ANEL
C
ONNECTORS