SVP UDT-4K, Manual

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UDT-4K UHD HEVC Digital Camera Transmitter
MANUAL V0
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Bit 3 => Profile 4 selected
Bit 2 => Profile 3 selected
Bit 1 => Profile 2 selected
Bit 0 => Profile 1 selected
CHK is the XOR of all the previous bytes, excluding the first byte with value
0x7D.
The message that you can send from the PC to the transmitter to change its
configuration must have the following format:
0x7D 0x07 0x23 WW XX YY ZZ CHK 0x7D
The bytes WW XX YY ZZ can be seen as a 32 bit word. In this word the
meaning of the bits are (MSB first)
26-24 => profile select Profile 1 => 001
Profile 2 => 010
Profile 3 => 011
Profile 4 => 100
Profile 5 => 101
Profile 6 => 110
Profile 7 => 111
27 => ON/OFF (0:OFF 1:ON)
28 => RF ON/OFF (0:OFF 1:ON)
29 => PA at LOW POWER
30 => PA at MID POWER
31 => PA at HIGH POWER
23-0 => not interesting
CHK must be set to the XOR of all the previous bytes, excluding the first byte
with value 0x7D.
The transmitter will answer a message with the following format: