Page 7
FT-410 O
peraTiOn
M
anual
r
ear
p
anel
J
acKs
1
2
8
7
6
5
4
3
1. DC IN Jack
This is the DC power supply connection for
the transceiver. Use the supplied DC cable
to connect directly to the car battery or to a
DC power supply, which must be capable of
supplying at least 22 A @13.8 VDC.
(viewed from rear panel)
+
-
2. ANT Jack
Connect your antenna here, using a type-M (PL-
259) coaxial connector and 50 Ohm coaxial
feedline.
Warning!: High Power RF voltage is present
at the TX RF section of the transceiver while
transmitting. Absolutely! Do not touch the TX RF
section while transmitting.
3. GND Terminal
For safety and optimum performance, use this
terminal to connect the transceiver to a good
earth ground. Use a large diameter, short braided
cable for making ground connections. Refer to
page 12 for other notes about proper grounding.
4. TUNER Jack
This 8-pin jack is used for Connection to the
FC-
40
External Automatic Antenna Tuner.
TXD
TX GND OUT
+13.8V OUT
GND
TUNER SENSE
TX INH IN
RXD
RESET OUT
(viewed from rear panel)
5. LINEAR Jack
This 10-pin output jack provides band selection
data, which may be used for control of the
optional
VL-1000
Solid-State Linear Amplifier.
BAND DATA-A (LSB)
TX GND OUT
+13.8V OUT
TXREQ IN
GND
BAND DATA-B
BAND DATA-C
BAND DATA-D (MSB)
TX INH IN
EXT ALC IN
(viewed from rear panel)
6. DATA Jack
This 6-pin input/output jack provides receiver
audio and squelch signals, and accepts transmit
(AFSK) audio and PTT control, from an external
packet TNC.
SQL OUT
FSK IN
GND
DATA IN
DATA PTT
DATA OUT
(viewed from rear panel)
7. CAT Jack
This 9-pin serial DB-9 jack allows external
computer control of the
FT-410
. Connect a
(straight) serial cable here and to the RS-
232C COM port on your personal computer (no
external interface is required).
CTS
RTS
GND
SERIAL IN
SERIAL OUT
Connect to
,
Connect to
,
N/A
Connect to
,
(viewed from rear panel)
8. EXT SPKR Jack
This 3.5-mm, 2-pin jack provides variable audio
output for an external speaker. The audio output
impedance at this jack is 4 - 16 Ohms and the
level varies according to the setting of the front
panel’s [
AF]
knob. Inserting a plug into this jack
disables the internal loudspeaker.
