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Novus NR3700-G-PPS, User Manual, Page: 1 / 20

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USERS MANUAL 

NR3700-G-
PPS 

REVISION NUMBER 

B 

DATE 

10/20/20 

 

Page  #: 

1 of 20 

www.novuspower.com

 

 

 

NR3700-G-PPS 

 

NMEA-PPS Source 

 
 

 

 

 

 
 

 

All information provided herein is the property of Novus Power Products LLC. The 
information included may be reproduced without the permission of Novus Power 
Products LLC. for the purpose of operating the Novus equipment. 
 

 

Summary of Contents for NR3700-G-PPS

Page 1: ...0 www novuspower com NR3700 G PPS NMEA PPS Source All information provided herein is the property of Novus Power Products LLC The information included may be reproduced without the permission of Novus...

Page 2: ...B DATE 10 20 20 Page 2 of 20 www novuspower com Contents 1 0 Overview 3 4 0 Input Output Connectors Mechanical 15 6 0 Alerts Function 17 9 0 Technical Specification 18 10 0 Environmental and Mechanic...

Page 3: ...a baud rate of 38 4K The baud rate can be changed through the RS232 port The unit operates from power in the voltage range of 60 to 60 VDC in three power supply ranges that must be specified at purch...

Page 4: ...e factory for further details There is a PCB assembly version of this product NR4400 which offers essentially the same functionality and can be directly embedded in a system smaller size and lower cos...

Page 5: ...it is the location of the antenna that will be given as the position fix If the antenna is mounted on a vehicle survey pole or backpack allowance for this must be made when using the solution The GNS...

Page 6: ...eiver compares the incoming signal with its own internal copy of the code and clock the two will no longer be synchronized Timing error in the satellite clocks the receiver and other anomalies mean th...

Page 7: ...ompanion elements generate the PPS and NMEA serial link The serial link conforms to NMEA 0183 protocol The 26 channel high sensitivity high accuracy Multi GNSS receiver supports TRAIM GPS GLONASS QZSS...

Page 8: ...g is for the next rising edge of the PPS pulse There are a number of attributes for the PPS that can be controlled via the RS232 port with the radio PPS Availability There is a TCXO that is used to ma...

Page 9: ...uld be considered The PPS can also be enabled or disabled based upon a calculated accuracy Cable Delays The unit can be programmed to compensate for PPS errors due to cable length A compensation facto...

Page 10: ...evels PPS Accuracy 15ns 1 130 dBm 50ns 1 150 dBm The nominal accuracy of a PPS signal that is directly from the radio is on the order of 25 ns rms The signal will also have 5 ns of jitter The jitter i...

Page 11: ...or PPS jitter can be improved from the 5 ns range to less than 60 ps PPS Holdover PPS holdover is concerned with the stability of the PPS when GNSS lock is lost The circuitry discussed to improve jitt...

Page 12: ...USERS MANUAL NR3700 G PPS REVISION NUMBER B DATE 10 20 20 Page 12 of 20 www novuspower com What information is sent from the radio and how often can be selected The NMEA sentence format...

Page 13: ...USERS MANUAL NR3700 G PPS REVISION NUMBER B DATE 10 20 20 Page 13 of 20 www novuspower com...

Page 14: ...will be output every second The sentences can be independently enabled and disabled using the PERDCFG NMEAOUT and or PERDAPI CROUT command described later in this document as well as using differing...

Page 15: ...USERS MANUAL NR3700 G PPS REVISION NUMBER B DATE 10 20 20 Page 15 of 20 www novuspower com Input Output Connectors Mechanical 3 5 4 0 375 499 189 O 150 B B B 500 Front Panel Output BNC Alert...

Page 16: ...ts to the GPS ant provides 3 3 VDC 45mA max PPS SMA or BNC one pulse per second RS232 standard NMEA output NMEA 0183 Power Connector The power connector is a 2 pin terminal block connector that mates...

Page 17: ...protected Pin 1 is designated on the panel and is the far right pin as directly viewed Pin 1 N C 2 NMEA Tx 3 NMEA Rx 4 no connection 5 GND 6 N C 7 N C 8 N C 9 N C Contact closure occurs in the normal...

Page 18: ...ns 1 150 dBm RMS accuracy 3 3 volt logic 5 vdc logic option output impedance CMOS 20mA Power Requirements 9 to 15 VDC 1 0 amps max 10 Watts Voltage range 60 to 60 available contact Factory Connectors...

Page 19: ...d conditions of this paragraph or any other part of this Agreement Your dated sales or delivery receipt is your proof of the purchase date You may be required to provide proof of purchase as a conditi...

Page 20: ...ROFITS BUSINESS INTERRUPTION LOSS OF DATA OR BUSINESS INFORMATION OR OTHER PECUNIARY LOSS ARISING OUT OF THE USE OF OR INABILITY TO USE THE HARDWARE SUPPLIED THEREWITH EVEN IF NOVUS OR ANYONE ELSE HAS...

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