RANGECMP2

Compressed version of the RANGE log

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2

This log contains the RANGE data in a compressed format. RANGECMP2 is more compressed than RANGECMP.

For dual antenna receivers, a RANGECMP2_1 log can be requested to get RANGECMP2 data from the second antenna. As described in Table: Binary Message Header Structure, the message type indicates the log is from the second antenna. To request an ASCII log enter RANGECMP2A_1, and for a binary log enter RANGECMP2B_1.

Message ID: 1273

Log Type: Synch

Recommended Input:

log rangecmp2a ontime 10

Example:

#RANGECMP2A,USB1,0,55.0,FINESTEERING,2209,512524.000,02000020,1fe3,16809;2256,0

01a00a09fbc856c0540e1ffff6dd8c80c004201d1ffe4ffff4578e87c983d82d1ffe5ffff0dd8c8

75308082d1ffe7ffff0d5a667570f102faff01020010405f8592fb2fe1ffff2dbda41eb81980160

0e4ffff055ce61e0806001600021200542192852b0650e1ffff2dbc860f50e280ffffe4ffff0579

6655c83a820000e5ffff0dbc865f4800820000e7ffff0d3f62ad3033040900efffff097cc61e009

681fcff030c00ecf8b58551f83fe1ffff6dda06508021800d00e4ffff457948a400aa800c00e5ff

...

5cdfe3fe1ffff291f8417b01900d5ffe3ffff0d7f001b285f00d6ffedffff0d3e041ef86680deff

3c0c600078ef05cafa3fe1ffff29796829181500e5ffe3ffff4d9c6449685f80f5ffedffff0d79c

647307b80f6ff3e0e6018ff1306cc0630e1ffff2977e80f203a011100e3ffff4db80669d069830b

00edffff0d954856b8c88200003f176024e7f2057efb5fe1ffff293d0466980501dffff3ffff0db

be63bf81b02d6fff4ffff0d3f226fd0e380e2fff5ffff031ca45db89d80e9ffedffff0d784636b8

3900eaff*e438ba70

Field	Field Type	Description	Format	Binary Bytes	Binary Offset
1	Log header	RANGECMP2 header For information about log headers, see ASCII, Abbreviated ASCII or Binary.		H	0
2	# bytes	Number of bytes in the compressed binary range data1	Uchar	4	H
3	RangeData	Compressed binary range data in the format of Table: Satellite Block of the Range Record Format (RANGECMP2 only) and Table: Signal Block of the Range Record Format (RANGECMP2 only) 2	Uchar	#bytes	H+4
4	xxxx	32-bit CRC (ASCII and binary only)	Hex	4	H+4+ (# bytes)
5	[CR][LF]	Sentence terminator (ASCII only)	-	-	-

Satellite Block of the Range Record Format (RANGECMP2 only)
Data	Description	Bits first to last	Length (bits)	Scale Factor	Units
SV Channel Number	Receiver SV channel number	0-7	8	-	-
Satellite Identifier	Satellite identifier specific to the satellite system Refer to PRN Numbers	8-15	8	-	-
GLONASS Frequency Identifier	GLONASS frequency channel offset by +7	16-19	4	(7+Ch#)	-
Satellite System Identifier	Defined in Table: Satellite System	20-24	5	-	Enum
Reserved		25	1	-	-
Pseudorange Base	Pseudorange base value to be combined with PSR Diff and Phaserange Diff in each following Signal Block	26-54	29	1	m
Doppler Base	Doppler base value to be combined with the Scaled Doppler Diff value in each following Signal Block	55-75	21	1	Hz
Number of Signal Blocks	The number of Signal Blocks to follow this Satellite Block. See Table: Signal Block of the Range Record Format (RANGECMP2 only) for Signal Block definition	76‑79	4	-	-

Signal Block of the Range Record Format (RANGECMP2 only)
Data	Description	Bits first to last	Length (bits)	Scale Factor	Units
Signal Type	Defined in Table: Signal Type (only in RANGECMP2)	0-4	5	-	Enum
Phase Lock	Phase Lock: 0 = Not locked, 1 = Locked	5	1	-	Bool
Parity Known	Parity Known: 0 = Not known, 1 = Known	6	1	-	Bool
Code Lock	Code Lock: 0 = Not locked, 1 = Locked	7	1	-	Bool
Locktime	Time of continuous tracking with no cycle slips. The locktime value saturates at a maximum of 131071 ms	8-24	17	1	ms
Correlator Type	Correlator type: (see Table: Correlator Type)	25-28	4	-	Enum
Primary Signal	Primary signal: 0 = Not primary, 1 = Primary	29	1	-	Bool
Carrier Phase Measurement	Carrier phase measurement: 0 = Half cycle not added, 1 = Half cycle added	30	1	-	Bool
Reserved		31	1	-	-
C/No	Carrier to Noise density ratio	32-36	5	(20 + n)	dB-Hz
StdDev PSR	Pseudorange Standard Deviation (defined Table: Std Dev PSR Scaling)	37-40	4	Bit Field in Table: Std Dev PSR Scaling	-
StdDev ADR	Carrier-Phase Standard Deviation (defined Table: Std Dev ADR Scaling)	41-44	4	Bit Field in Table: Std Dev ADR Scaling	-
PSR Diff	Pseudorange Diff to be combined with Pseudorange base i.e., PSR = PSRBase + PSRDiff/128	45-58	14	1/128	m (unsigned)
Phaserange Diff	Phaserange Diff to be combined with Pseudorange Base i.e., ADR = PSRBase + PhaserangeDiff/2048	59-78	20	1/2048	m (unsigned)
Scaled Doppler Diff3	Doppler Diff to be combined with Doppler Base. Note that all Doppler values are scaled to the L1/E1 equivalent value. (refer to Table: L1/E1/B1 Scaling) i.e., Doppler = (DopplerBase + ScaledDopplerDiff/256)/L1ScaleFactor	79‑95	17	1/256	Hz (signed)

Std Dev PSR Scaling
PSR Std Dev Bit Field Value	Represented Std Dev (m)
0	0.02
1	0.03
2	0.045
3	0.066
4	0.099
5	0.148
6	0.22
7	0.329
8	0.491
9	0.732
10	1.092
11	1.629
12	2.43
13	3.625
14	5.409
15	>5.409

Std Dev ADR Scaling
ADR Std Dev Bit Field Value	Represented Std Dev (cycles)
0	0.00391
1	0.00521
2	0.00696
3	0.00929
4	0.01239
5	0.01654
6	0.02208
7	0.02947
8	0.03933
9	0.05249
10	0.07006
11	0.09350
12	0.12480
13	0.16656
14	0.22230
15	>0.22230

L1/E1/B1 Scaling
Satellite System	Signal Type	L1/E1/B1 Scale Factor
GPS	L1CA	1.0
	L2Y	154/120
	L2C	154/120
	L5Q	154/115
GLONASS	L1CA	1.0
	L2CA	9/7
	L2P	9/7
SBAS	L1CA	1.0
SBAS	L5I	154/115
Galileo	E1	1.0
	E5A	154/115
	E5B	154/118
	AltBOC	154/116.5
	E6C	154/125
	E6B	154/125
QZSS	L1CA	1.0
	L2C	154/120
	L5Q	154/115
	L6P	154/125
LBAND	LBAND	1.0
BDS	B1	1.0
	B1C	1526/1540
	B2	1526/1180
	B2a	1526/1150
	B2b	1526/1180
	B3	1526/1240
NAVIC	L5SPS	1.0

Signal Type (only in RANGECMP2)
Satellite System	Signal Type	Value
GPS	L1CA	1
	L2Y	4
	L2CM	5
	L5Q	7
	L1C	15
GLONASS	L1CA	1
	L2CA	3
	L2P	4
	L3Q	6
SBAS	L1CA	1
SBAS	L5I	2
Galileo	E1C	1
	E5AQ	2
	E5BQ	3
	AltBOCQ	4
	E6C	5
	E6B	12
QZSS	L1CA	1
	L2CM	3
	L5Q	4
	L1C	8
	L6P	11
LBAND	LBAND	1
BDS	B1D1I	1
	B1D2I	2
	B2D1I	3
	B2D2I	4
	B3D1I	13
	B3D2I	16
	B1CP	19
	B2AP	20
	B2B_I	21
NAVIC	L5SPS	1