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3
15
INSTALLATION AND CONNECTIONS
■
Required connections
• Front panel
• Rear panel
SWR
S
COMP
ALC
Po
0
10
10
25 50
100
20
1
0
1.5
2
3
1
5
9
+ 20
+ 40
+ 60dB
dB
RIT/
TX
TX
F-1
SSB
F-2
F-3
F-4
F-5
CW/RTTY
AM/FM
FILTER
EXIT/SET
1
2
3
4
5
6
7
8
9
0
ENT
NOTCH
PBT CLR
LOCK
TX
RX
NOTCH
TWIN PBT
CW PITCH
REC/PLAY
LOCK/SPEECH
RIT
CLEAR
SPLIT
MP-W
MP-R
DUAL
WATCH
VFO/
MEMO
MAIN/
SUB
CHANGE
1.8
3.5
7
10
14
18
21
24
28
GENE
50
F-INP
MW
M-CL
TS
XFC
i756PRO™
TIMER
POWER
TRANSMIT
PHONES
ELEC-KEY
MIC
TUNER MONITOR
NB
NR
AF
BAL
NR
RF/SQL
MIC GAIN RF POWER
COMP
KEY SPEED
BK-IN DELAY
HF/50MHz TRANSCEIVER
CW KEY
A straight key can be used
when the internal electronic
keyer is turned OFF in keyer
set mode. (p. 43)
MICROPHONES
(p. 84)
SM-20
HM-36
GROUND
(p. 14)
Use the heaviest gauge wire
or strap available and make
the connection as short as
possible.
Grounding prevents electrical
shocks, TVI and other
problems.
ANTENNA 1, 2
(p. 14)
[Example]: ANT1 for 1.8–18 MHz bands
ANT2 for 21–50 MHz bands
DC POWER SUPPLY
(p.17)
STRAIGHT KEY
PS-125
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