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The operating principle of  the  receiver  is  based  on  parallel  receiving  and  processing  of  signals  from  navigation GLONASS  SC  by  32  counting  channels  in  frequency  band L1  (CT  or  PT  code), GPS  on L1 frequency (C/A code) and GALILEO on E1 frequency. NT solution results are issued in NMEA messages format.

GLONASS module NAVIA ML8088s is the ideal solution for miniaturization and compactness. ML8088s navigation receiver is built on a state-of-the-art dedicated chipset STA8088F from the family of so-called “systems-on-a-chip” STA8088FG.
The receiver has high sensitivity, low power consumption and short cold/warm/hot start time.

The  receiver  is provided with  two  searching  (capturing)  channels  and 32 channels  for  satellite signals  tracking, which  ensures  simultaneous  searching  for  satellite  signals  of GLONASS  and GPS constellations.

The  receiver  makes  it  possible  to  use  satellites  almanac  and  ephemeris  datas  stored  in  the receiver memory  for  initial  search of  satellite  signals;  this ensures  reduction of  cold  start  time and, which is more important, makes it possible to perform the cold start when the signals from satellites are weak. The mentioned datas can be prepared by external sources (and transferred to the  receiver  via  data  links),  as well  as  by  the  receiver  itself.  In  the  latter  case,  no  additional information from the external sources is required.
The NAVIA  ML8088s is provided with built-in 3-state jammer barrier feature, which allow the receiver to operate under high interference signaling environment.

Technical Specification

Number of tracking channels 32
Number of capturing channels 2
GPS frequency band, MHz 1575,42±0,5
GLONASS frequency band, MHz 1597,5…1605,9MHz
Coordinates calculation tolerance(at confidence probability level 0.67), maximum, m 3  in plan
4  by height
Plan velocity calculation tolerance (at confidence probability level 0.67), maximum, m/s 0,05
Tolerance of 1PPS distribution (at the gauss 70% distribution level) to time scales GPS, GLONASS, UTC, UTC (SU), verage, ns +-20
Mean time to the first position measurement, at signal level –130 dBm, s 35  cold start
34  warm start
1  hot start
1  recapturing
Detection sensitivity, minimum, dBm -145 cold start
-145 warm start
-153 hot start
Satellite positioning prediction, days 5 – stand alone
7 – external data source
Volume of statellites almanac and ephemeris data
transmitted from the external source, KBytes
2
Tracking sensitivity, minimum, dBm -160 in statics
-157 in dynamics
-153 in dynamics (error 30 m maximum)
Jammer barrier system 3 level, built-in
Output data updating rate, Hz 0.1…1, 5
Dynamics, maximum
Acceleration, g
rate of acceleration change, g/s
3

 

1

Maximum velocity, m/s 515
Maximum height, m 18,000
Microprocessor core ARM946
Communications interface RS232 3,3 V LVCMOS
1PPS signal
Level duration, ms
3.3 V LVCMOS
500
Main supply voltage, V 3,0…3,6
Backup supply voltage, V 2,0…3,6
Useful current in 3.3 V circuit, standard, mA searching 55 (GPS), 75 (GLONASS+GPS)
tracking 35 (GPS), 55 (GLONASS+GPS)
Useful current in external backup battery circuit, standard, µA 50
Dimensions (length Ñ… width Ñ… height), mm³ 15Ñ…13Ñ…2,8
Weight, maximum, g 2
Operating temperatures range, ºÐ¡ -40…+85

CHARACTERISTICS:

Power Supply » DC Voltage Supply » 3.3 - 5 V

Operations Manual for NAVIA ML8088s