Antenna Status Formats

Status Packet RCV01 Format (RCP8 to Host)

Char	Function
1	SYNC Byte (80 Hex)
2	Azimuth Low 7 bits
3	Azimuth High 7 bits
4	Elevation Low 7 bits
5	Elevation High 7 bits
6	Status #1	D6 = Low air flow
		D5 = Low Waveguide pressure
		D4 = Servo power
		D3 = Antenna Local mode
		D2 = Interlock
		D1 = Standby
		D0 = Radiate On
7	Status #2	D6 = RCP8 is shutdown
		D5 = LSB pulse width
		D4 = T/R power On
		D3 = T/R Local mode
		D2 = Encoders calibrated
		D1 = MSB pulse width
		D0 = Magnetron current normal
8	End Of Message (FF Hex)

Status Packet RCV02 Format (RCP8 to Host)

Char	Function
1	SYNC Byte (80 Hex)
2	Azimuth Low 7 bits
3	Azimuth High 7 bits
4	Elevation Low 7 bits
5	Elevation High 7 bits
6	Azimuth Rate Low 7 bits
7	Azimuth Rate High 7 bits
8	Elevation Rate Low 7 bits
9	Elevation Rate High 7 bits
10	Status #1	D6 = Low air flow
		D5 = Low Waveguide pressure
		D4 = Servo Power
		D3 = Antenna Local mode
		D2 = Interlock Open
		D1 = Standby
		D0 = Radiate On
11	Status #2	D6 = RCP8 is shutdown
		D5 = LSB pulse width
		D4 = T/R power On
		D3 = T/R Local mode
		D2 = Azimuth encoder calibrated
		D1 = MSB pulse width
		D0 = Mag. current normal
12	Status #3	D6 = IRIS Mode 2
		D5 = IRIS Mode 1
		D4 = IRIS Mode 0
		D3 = Elevation encoder calibrated
		D2 = Signal Generator fault
		D1 = Signal Generator On
		D0 = Signal Generator CW
13	Signal generator level (0 = max power)
14	Time Stamp Low 7 bits
15	Time Stamp High 7 bits
16	END OF MESSAGE (FF Hex)

Status Packet RCV03 Format (RCP8 to Host)

Char	Function
1	SYNC Byte (80 Hex)
2	Identification byte
3	Azimuth Low 7 bits (Earth relative)
4	Azimuth High 7 bits
5	Elevation Low 7 bits (Earth relative)
6	Elevation High 7 bits
7	Train Order Low 7 bits (azimuth of pedestal relative to the ship)
8	Train Order High 7 bits
9	Elevation Order Low 7 bits (elevation of pedestal relative to the ship)
10	Elevation Order High 7 bits
11	Pitch Low 7 bits
12	Pitch High 7 bits
13	Roll Low 7 bits
14	Roll High 7 bits
15	Heading Low 7 bits
16	Heading High 7  bits
17	Azimuth Rate Low 7 bits
18	Azimuth Rate High 7 bits
19	Elevation Rate Low 7 bits
20	Elevation Rate High 7 bits
21	Pitch Rate Low 7 bits (LSB = Zero)
22	Pitch Rate High 7 bits
23	Roll Rate Low 7 bits (LSB = Invalid Roll)
24	Roll Rate High 7 bits
25	Heading Rate Low 7 bits (LSB = Invalid Heading)
26	Heading Rate High 7 bits
27	Status #1	D6 = Low air flow
		D5 = Low Waveguide pressure
		D4 = Servo power
		D3 = Antenna Local mode
		D2 = Interlock open
		D1 = Standby
		D0 = Radiate ON
28	Status #2	D6 = RCP8 is shutdown
		D5 = LSB pulse width
		D4 = T/R Power on
		D3 = T/R Local mode
		D2 = Azimuth encoder calibrated
		D1 = MSB pulse width
		D0 = Mag. current normal
29	Status #3	D6 = Reserved
		D5 = Reserved
		D4 = Reserved
		D3 = Elevation encoder calibrated
		D2 = Signal Generator fault
		D1 = Signal Generator On
		D0 = Signal Generator CW
30	Signal generator value (0 = full signal)
31	Time Stamp Low 7 bits
32	Time Stamp High 7 bits
33	Latitude Low 7 bits
34	Latitude Middle 7 bits
35	Latitude High 7 bits
36	Longitude Low 7 bits
37	Longitude Middle 7 bits
38	Longitude High 7 bits
39	Altitude Low 7 bits
40	Altitude High 7 bits
41	Velocity East Low 7 bits (LSB = Invalid Lat/Lon)
42	Velocity East High 7 bits
43	Velocity North Low 7 bits (LSB = Zero)
44	Velocity North High 7 bits
45	Velocity Up Low 7 bits (LSB = Invalid Altitude)
46	Velocity Up High 7 bits
47	END OF MESSAGE (FF Hex)

Status Packet RCV05 Format (RCP8 to Host)

Char	Function
1–15	These bytes exactly match RCV02 / RCV04 format
16	Dual–System Status	D6 = RCP8 is configured as a Dual–System
		D5 = Dual–System Mode MSB
		D4 = Dual–System Mode LSB
		D3 = This packet was sent from Unit "A"
		D2 = Information is known about the "Other" unit
		D1 = Unit "A" is the preferred system
		D0 = Unit "B" is disabled
Note: The 2–bit Dual–System Mode codes are:
00 : Unknown 01 : System "A" 10 : System "B" 11 : Auto Switch
17	Dual–System Status	D6 = Unit "B" is okay
		D5 = Unit "B" Activity Code MSB
		D4 = Unit "B" Activity Code LSB
		D3 = Unit "A" is disabled
		D2 = Unit "A" is okay
		D1 = Unit "A" Activity Code MSB
		D0 = Unit "A" Activity Code LSB
Note: The 2–bit Dual–System Activity codes are:
00 : Inactive 01 : Warmup 10: Active Now 11 : Reserved
18	Dual–System Status	D6 = RCP8 is configured for voluntary flipping
		D5 = Unit "B" is offering to give up control
		D4 = Unit "A" is offering to give up control
		D3 = Unit "B" would be used if it were available
		D2 = Unit "A" would be used if it were available
19	Polarization Status	D2:0 = Current Polarization XMT control
		0 = Horizontal; 1 = Vertical; 2 = Alternating; 3 = Simultaneous
		D3 = Polarization switch is OK to XMT
20-23	4-byte signal generator frequency (kHz)
24	END OF MESSAGE (FF Hex)