RANGECMP5

Platform:

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

Firmware:

This log is available only on 7.10.xx firmware.

The RANGECMP5 log offers more compression than RANGECMP and RANGECMP2 while not having the differential aspect and complexity of RANGECMP4. The RANGECMP5 log also has wider parameters for some fields when compared to the rest of the RANGECMP logs. The widened Primary Doppler, Secondary-Primary Doppler, ADR Std Dev and PSR Std Dev provide more information when operating in challenging environments.

For dual antenna receivers, a RANGECMP5_1 log can be requested to get RANGECMP5 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 RANGECMP5A_1, and for a binary log enter RANGECMP5B_1.

The RANGECMP5 and RANGECMP5_1 logs use the same message ID.

Message ID: 2537

Log type: Synch

Recommended input:

LOG RANGECMP5A ONTIME 10

ASCII example:

#RANGECMP5A,COM1,0,71.5,FINESTEERING,2297,339714.000,1a000000,4f34,32768;1156,
61000270b52000000000b200337f3733ff30f49e20b275e67605693338e1498151f7049d90c0ee
fce0ff1f06df93429d1a44a758ceffef3d5030dabe18b81b20dafe1300400efc41ee0cf82dd339
b96013080582df0f92580276e503008008f843d48bc07aece006a027be000a4250d54480ff87be
f7a4946dc109abf43e40f4db0c34b92705cf07daf0fe0200d1ed8b29ff0160c3ff09006cc31f62
74af912f295312fef8e27f07be10081eb09066f8ff4f7c4fc6eb063cbb1662ffa106fe20fd5b9c
ff09e266e073f7fa65ef0751f2807352c2fe3f84b92f88350e9567d96e0ae8408ea0ad7d412

. . . .

e1f2692dae0c5d04fec5b65fff7e88b217d8d114200194c01fe12f04f67a05e4ff300b5f88b0e8
180815bd1e605e108022f8232cc9c0c5daa0f9bf0ffe08fc27808c2cd0fd87d1f7630039d842ab
d3b8c1a8940c74be272350064a390a4000fbef879827814a6bc2fa3ffcb52f486c221988edf4fd
25c067004ee10b8115bc4da65e7b071290c9df007f08821ee8202980ff4fc11f611306b2990a92
ff70d2bea0be9cf93786ad0a580385ff40f7a5084783078adffd7fc97d2947baf0f8dd4fff8731
f7a46811a4032faebd008a7ce627bb2784870da0c700f6ff37efc9a8c90299574008004cbe1f83
19474e663196fb1f379ea0fdfd10eb1180f1e12fff9f813f82a301f089f863ff01*b4cd8fcd

Field	Field name	Description	Format	Binary bytes	Binary offset
1	Log header	RANGECMP5 header For information about log headers, see ASCII, Abbreviated ASCII or Binary.	–	H	0
2	#bytes	Number of bytes in the compressed binary Range data.	Uchar	4	H
3	Range data	The compressed binary range data is organized into satellite system blocks which break down into measurement blocks for each active signal within each system. The following tables define this format: Table: RANGECMP5 header (sent once) Table: Satellite and signal block (sent once per satellite system bit set to 1 in the GNSS field found in Table: RANGECMP5 header) Table: Measurement block header (sent once for each bit set to 1 in the Satellites field found in Table: Satellite and signal block) Table: Primary signal measurement block or Table: Secondary signal measurement block (sent for each bit set to 1 in the Included Signals field for a given satellite found in Table: Satellite and signal block) The byte data is received MSB first so each group of bytes (as defined by the number of needed bits) must be swapped prior to processing.	Uchar	# bytes	H+4
4	xxxx	32-bit CRC (ASCII only)	Hex	4	H+4+(# bytes)
5	[CR][LF]	Sentence terminator (ASCII only)	–	–	–

RANGECMP5 header
Data name	Range	Description	Bits	Scale factor
GNSS field	0… 65535	Indicates which satellite system data is encoded and in what order. When the bit is set, the satellite data is included. Data for each system is encoded sequentially: Bit 0 = GPS Bit 1 = GLONASS Bit 2 = SBAS Bit 5 = Galileo Bit 6 = BeiDou Bit 7 = QZSS Bit 9 = NavIC L-band channels are not reported.	16	1
Bit sum:			16

This block is sent once per message.

Satellite and signal block
Data name	Range	Description	Bits	Scale factor
Satellites field	0… 1.84467E+19	Indicates which m satellites are present for this system and their order in the message. Each PRN is represented by a bit. (Bit 0 = PRN 1, Bit 1 = PRN 2, …) Notes: Manually assigned channels are not reported. SBAS satellite PRNs 120 to 158 are offset by 120. (Bit 0 = PRN 120, Bit 1 = 121, …) SBAS satellite PRNs 183 to 187 are offset by 130. QZSS satellite PRNs are offset by 193.	64	1
Signals field	0… 65535	Indicates which n signals are present for this system and their order in the message. Each symbol is represented by a bit as defined in Table: Signal bit mask.	16	1
Included signals field	0… m x n	A two-dimensional field to tell the decoder which signals are present for each of the satellites. m = The number of rows equals the number of bits set to 1 found in the Satellites Field. (Maximum number of PRN’s in the satellite system.) n = The number of columns equals the number of bits set to 1 found in the Signals Field. (Maximum number of Signals in the satellite system.)	m x n
Bit sum:			80 + m x n

This block is sent once for each bit set to 1 in the GNSS field found in Table: RANGECMP5 header.

Measurement block header
Data name	Range	Description	Bits	Scale factor
Data format flag	0… 1	Identifies what type of Measurement Block (Table: Primary signal measurement block or Table: Secondary signal measurement block) will be used: 0 = Reference 1 = Reserved	1	N/A
Reserved	0… 7	Reserved	3	N/A
GLONASS frequency number	0… 20 (-7 to +13)	These bits are only present for GLONASS satellites. This is the GLONASS slot ID. If the Slot ID is unknown, set the PRN between 43 and 63 based on the GLONASS Frequency: (0,20) PRN = 63 – GLONASS Frequency	5	N/A
Bit sum:			4 (Non-GLONASS) 9 (GLONASS)

This block is sent once for each bit set to 1 in the Satellites field found in Table: Satellite and signal block.

Primary signal measurement block
Data name	Range	Description	Bits	Scale factor
Parity flag	0… 1	0 = Parity Unknown 1 = Parity Known	1	N/A
½ Cycle flag	0… 1	0 = Half Cycle Not Added 1 = Half Cycle Added	1	N/A
Quality indicator	0… 63.95	C/No	11	0.05 dB-Hz
Lock time	0… 15	Lock time – see Table: Lock time.	4	N/A
Primary pseudorange standard deviation	0… 31	Pseudorange standard deviation – see Table: Pseudorange standard deviationTable 30.	5	N/A
Primary phaserange standard deviation	0… 31	Phaserange standard deviation – see Table: Phaserange standard deviation.	5	N/A
Primary pseudorange	0… 68719476.74	If this value is 2^n-1, it represents a signal that is not locked.	37	0.0005 m
Primary phaserange – primary pseudorange	(2’s Complement) ±419.4303	If this value equals -2^n-1, it represents the signal is not locked.	23	0.0001 m
Primary doppler	(2’s Complement) ±13421.773	If this value equals -2^n-1, it represents an invalid Doppler.	28	0.0001 m/s
Bit sum:			115

This block is sent once for the first bit set to 1 in the Included Signals field found in Table: Satellite and signal block.

Secondary signal measurement block
Data name	Range	Description	Bits	Scale factor
Parity flag	0… 1	0 = Parity Unknown 1 = Parity Known	1	N/A
½ Cycle flag	0… 1	0 = Half Cycle Not Added 1 = Half Cycle Added	1	N/A
Quality indicator	0… 63.95	C/No	11	0.05 dB-Hz
Lock time	0… 15	Lock time – see Table: Lock time.	4	N/A
Secondary pseudorange standard deviation	0… 31	Pseudorange standard deviation – see Table: Pseudorange standard deviation.	5	N/A
Secondary phaserange standard deviation	0… 31	Phaserange standard deviation – see Table: Phaserange standard deviation.	5	N/A
Secondary pseudorange – Primary pseudorange	(2’s Complement) ±262.1435	If this value is -2^n-1, it represents a signal that is not locked.	20	0.0005 m
Secondary phaserange – Secondary pseudorange	(2’s Complement) ±419.4303	If this value equals -2^n-1, it represents the signal is not locked.	23	0.0001 m
Secondary doppler – Primary doppler	(2’s Complement) ±6.554	If this value equals -2^n-1, it represents an invalid Doppler.	16	0.0002 m/s
Bit sum:			86

This block is sent once for each bit set to 1 after the first bit set to 1 in the Included Signals field found in Table: Satellite and signal block.

Signal bit mask
System bit	GPS	GLONASS	SBAS	Galileo	BeiDou	QZSS	NavIC
Bit 1	L1CA	L1CA	L1CA	E1	B1I	L1CA	L5SPS
Bit 2			L5I	E5A	B1GEO
Bit 3		L2CA		E5B	B2I	L2C
Bit 4	L2Y	L2P		ALTBOC	B2GEO	L5Q
Bit 5	L2C			E6C	B3I
Bit 6	L2P	L3			B3GEO
Bit 7	L5Q				B1CP
Bit 8						L1C
Bit 9					B2AP
Bit 10
Bit 11					B2BI	L6P
Bit 12				E6B
Bit 13
Bit 14
Bit 15	L1C

Lock time
Indicator (i)	Minimum lock time (ms)	Range of indicated lock times (t represents the lock time) (ms)
0	0	0 ≤ t < 16
1	16	16 ≤ t < 32
2	32	32 ≤ t < 64
3	64	64 ≤ t < 128
4	128	128 ≤ t < 256
5	256	256 ≤ t < 512
6	512	512 ≤ t < 1024
7	1024	1024 ≤ t < 2048
8	2048	2048 ≤ t < 4096
9	4096	4096 ≤ t < 8192
10	8192	8192 ≤ t < 16384
11	16384	16384 ≤ t < 32768
12	32768	32768 ≤ t < 65536
13	65536	65536 ≤ t < 131072
14	131072	131072 ≤ t < 262144
15	262144	262144 ≤ t

Phaserange standard deviation
Phaserange standard deviation (cycles) (4 MSBs)
X	(1/256) exp(x/(3.65sqrt(3)) (cycles)
0	≤	0.00391
1	≤	0.00458
2	≤	0.00536
3	≤	0.00628
4	≤	0.00735
5	≤	0.00861
6	≤	0.01001
7	≤	0.01182
8	≤	0.01385
9	≤	0.01621
10	≤	0.01900
11	≤	0.02223
12	≤	0.02607
13	≤	0.03054
14	≤	0.03577
15	≤	0.04190
16	≤	0.04908
17	≤	0.05749
18	≤	0.06734
19	≤	0.07889
20	≤	0.09240
21	≤	0.10824
22	≤	0.12679
23	≤	0.14851
24	≤	0.17396
25	≤	0.20378
26	≤	0.23870
27	≤	0.27961
28	≤	0.32753
29	≤	0.38366
30	≤	0.44940
31	>	0.44940

Pseudorange standard deviation
Pseudorange Standard Deviation (m) (4 LSBs)
X	0.020exp(0.4 x) if x ≤ 14 5.409exp(0.24(x-14)) if x ≤ 30 (m)
0	≤	0.020
1	≤	0.030
2	≤	0.045
3	≤	0.066
4	≤	0.099
5	≤	0.148
6	≤	0.220
7	≤	0.329
8	≤	0.491
9	≤	0.732
10	≤	1.092
11	≤	1.629
12	≤	2.430
13	≤	3.625
14	≤	5.409
15	≤	6.876
16	≤	8.741
17	≤	11.111
18	≤	14.125
19	≤	17.957
20	≤	22.828
21	≤	29.020
22	≤	36.891
23	≤	46.898
24	≤	59.619
25	≤	75.791
26	≤	96.349
27	≤	122.484
28	≤	155.707
29	≤	197.943
30	≤	251.634
31	>	251.634