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Fat Shark Specification Document
Model Numbers:FSV1258
Model Name:1G3 Ground Camera
Document Revision/Date:Rev A / 11.24.2016
This 1G3 Ground Camera is fully enclosed with
splash proof case for run with RC ground vehicles.
Software Function:
Channel Selection by PWM:
Stay on last frequency selected on power cycle
if there is no PWM signal present;
Startup in PWM mode, but when power is on at
the beginning 3~5 seconds, if CPU cannot detect
any PWM signal, then auto transfer to button
selection mode;
Before channel changes, there is a 200ms delay
seeing a constant pulse at a given value;
If the pulse width falls into the dead band
between channels it should be no change of
frequency. For failsafe operation, there should
be no change at 1550μs +/-75μs.
When CPU detects PWM signal at 1550μs +/-75μs,
then auto transfer to button selection mode;
Channel Selection by Button:
Solid Red Power LED (bottom) for indicating
power on, Green Channel LED (top) flashes on
channel change, Green Channel LED is solid
on channel 1 only.
Optical:
Imager:
1/3” 700TVL CMOS
Waterproof Backup Lens:
2.2 mm (IR cut)
System:
Analog NTSC
Electrical:
Output Power:
25mW
Working Voltage: 3.9-6V
Button Control:
Connector:
Single push button to switch
channel (1 to 8 then back to CH1)
100mm long silicone cable,
3p 2.54mm molex servo connector
(GND, Power, PWM signal)
Frequency Chart:
Channel
CH1
CH2
CH3
CH4
Frequencies 1080MHz 1120MHz 1160MHz 1200MHz
Channel
CH5
CH6
CH7
CH8
Frequencies 1258MHz 1280MHz 1320MHz 1360MHz
Operation:
lOperating Environment:Splash proof (fully
enclosed antenna), -10 to 60°C
lPWM Channel Selection:
Action
Pulse Width
No Change
No Change
Ch1
No Change
Ch2
<1124μs 1125-1175μs 1176-1224μs 1225-1275μs
Ch3
No Change
Ch4
No Change
1276-1324μs 1325-1375μs 1376-1424μs 1425-1475μs 1476-1624μs
Ch5
No Change
Ch6
No Change
Ch7
1625-1675μs 1676-1724μs 1725-1775μs 1776-1824μs 1825-1875μs
No Change
Ch8
No Change
1876- 1924μs 1925-1975μs >1976μs

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