Sony FS-2570 User Manual

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2  SSB RADIOTELEPHONE 
 
2-4 
Note: When tuning is initiated in the two-control unit system, the display of the idle control 
unit shows “OCCUPIED(ANOTHER CONTROLLER).” In this case, only the 
DISTRESS button is operative on the idle control unit. Further, if a control unit is in 
use when tuning is attempted at the other control unit, the display of the control unit 
which attempted to tune shows “OCCUPIED” plus the name of the equipment in 
use: ANOTHER CONTROLLER, NBDP, or DMC.   
 
2.1.4 Using the handset 
Hold the handset close to your mouth, press the PTT switch and speak clearly. 
 
2.1.5 Monitoring transceiver output power 
During transmission, the IA bar deflects according to the current being fed to the antenna 
feeder from the antenna coupler. The unit of readout is amperes. The antenna current 
varies with the effective antenna impedance. The swing differs by the frequency and 
antenna length. The output power is proportional to the square of an antenna current. 
 
Note: If IA is not shown, follow the procedure in paragraph 2.1.7 to show it. 
Antenna Current
MODE:   SSB          SIMP          HIGH
 
CH: 200
TX:  2182.0
KHZ
RX: 2182.00
KHZ
VOL
SEN
S
AGC : FAST
IA
2.1A
 
 
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