SV 977D User Manual - Appendixes
Table C.5.2. Pin out of the TNC connector
Power supply
Instrument is dedicated for the operation from the internal replaceable battery.
Power consumption from the 6V source is approx. 130 mA (at + 20
C)
So, typical operating time from 4 x AA alkaline batteries will be about 12 hours.
SV 977D can be also powered from the AA Type rechargeable batteries.
Note: For the temperatures below 0
C operating time may be shortened (depending on the batteries)!
Instrument can be also powered from the external source (e.g., SA 17A or car battery) with the DC Voltage
from 7 V to 16 V.
Voltage ripple should not exceed 5%.
External Power requirement is voltage dependent:
for 7 V - 110 mA DC,
for 15.5 V - 60 mA DC.
Power supply connector 5.5 / 2.1 mm (external view)
Table C.5.3. Pin out of the power supply connector
Interface USB Type C
The SV 977D USB-C 2.0 interface enables remote control of the instrument and data transfer with the speed
up to that attainable with 480 MHz clock.
Note: For effective operation with the USB, the High 480Mbps speed mode should be used,
however when the interference RF field strength may exceed the value of 3V/m, then it is
recommended to switch to the Full 12Mbps speed mode.
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