XW-4
(
CAS-10
)
Amateur Radio Satellite User's Manual
28
/
31
V2.0 by BA1DU
龚万骢
Sending
order
Starting
position
Data
length
Telemetry data function description
Telemetry data parsing algorithm
6
F2W10
1Byte
Satellite latitude
B7 of W1 is a character bit, 0 is positive, 1 is negative; b6~b0 are
numeric bits
Range: N*2, (-90 º ~90 º)
7
F2W11
1Byte
Rolling angle estimation
B7 of W1 is a character bit, 0 is positive, 1 is negative; b6~b0 are
numeric bits
Range: -125
~
+125 º
8
F2W12
1Byte
Pitch angle estimation
B7 of W1 is a character bit, 0 is positive, 1 is negative; b6~b0 are
numeric bits
Range: -125
~
+125 º
9
F2W13
1Byte
Yaw angle estimation
B7 of W1 is a character bit, 0 is positive, 1 is negative; b6~b0 are
numeric bits
Range: -125
~
+125 º
F3 frame (frame count is 4n+3)
Sending
order
Starting
position
Data
length
Telemetry data function description
Telemetry data parsing algorithm
1
F3W2W3
2Byte
VHF receiver 3.8V current
W1W2 is an integer
Range: 0
~
500(mA)
2
F3W4W5
2Byte
RF transmit power
W1W2 is an integer
Range: 0
~
2000(mW)
3
F3W6
1Byte
UHF Transmitter PA temperature
B7 of W1 is the sign bit, 0 is positive, 1 is negative; b6~b0 are numerical
bits