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13

Attaching an external UHF/

GSM antenna

Depending upon which options you chose when 

you purchased your OMEGA, the type of external UHF 

antenna shown in this discussion may differ from 

yours, but the procedure presented will remain the 

same.

When doing RTK surveying, the reception of your 

base station’s corrections by the rover can be en-

hanced using an external UHF antenna. Begin by at-

taching the external antenna. In this image, we see 

the 2.5 dB gain antenna (30-597161-01) attached to 

the Triumph-ls. 

For the purposes of this discussion it is assumed 

that you have already attached the external UHF an-

tenna, are in the field, the LS is powered on, that it’s 

setup as the RTK rover, the RTK base is on and the 

UHF radio is broadcasting corrections. 

Anytime the UHF communications are interrupted; 

such as in this example, it will take a few seconds up 

to a minute or so for  them to be reestablished.

Updates

Keeping your OMEGA up to date is nearly effort-

less; however, you do need to ensure that you have 

Internet access in order to download the updates to 

the various firmwares, softwares and even messages 

from other users.

The OMEGA will automatically detect nearby WiFi 

Access Points. For you to see those points detected, 

as well as their respective signal strength, tap on the 

WiFi icon in the top row of icons on the Home screen 

and then at the bottom of that screen tap on Network. 

Select the desired access point, tap on Connect, enter 

the case sensitive password, if any, and you should 

get connected automatically. You will see the chosen 

access point change from blue to red indicating that 

it is current. 

Sometimes you may need to restart the unit for de-

tection of Access Points. This is a known issue with 

the operating system that is presently being worked 

on. 

If you do not have WiFi or for some reason are un-

able to connect to it, but do have a wired local area 

network, you can connect the OMEGA to your net-

work using a cable connected to the LAN port and 

your network interface card or router.

The next option afforded for receiving firmware 

and software updates is via your data plan associated 

with your cell service provider and the previously in-

stalled SIM card. Depending on your data plan, some 

fees may apply. 

In all instances; WiFi, wired-LAN and 3G, the tar-

geted functionality is in the OMEGA being able to re-

ceive updates from JAVAD GNSS over the Internet. At 

present, these types of network connections do not 

extend to facilitating survey data transfers between 

your PC and the receiver. 

Option Authorization File 

(OAF)

JAVAD GNSS issues an Option Authorization File 

(OAF) to enable the specific options that customers 

purchase. An Option Authorization File allows cus-

tomers to customize and configure the OMEGA receiv-

er according to particular needs, thus only purchas-

ing those options needed.

Typically, all OMEGA receivers ship with a tem-

porary OAF that allows the receiver to be used for a 

predetermined period of time. When the receiver is 

purchased, a new OAF activates desired, purchased 

options permanently. Receiver options remain intact 

when clearing the NVRAM or resetting the receiver.

Summary of Contents for OMEGA

Page 1: ...reserved The information contained herein may not be used accessed copied stored displayed sold modified published or distributed or otherwise reproduced without express written consent from JAVAD GNSS OMEGA GNSS Receiver User Manual Version 1 3 Last Revised May 14 2020 ...

Page 2: ... JAVAD GNSS Inc 2020 www javad com ...

Page 3: ...wnedbytheBluetooth SIG Inc Product and company names mentioned herein may be trademarks of their respective owners DISCLAIMER OF WARRANTY EXCEPT FOR ANY WAR RANTIES IN THIS MANUAL OR A WARRANTY CARD AC COMPANYING THE PRODUCT THIS MANUAL AND THE OMEGA RECEIVER ARE PROVIDED AS IS THERE ARE NO OTHER WARRANTIES JAVAD GNSS DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR ...

Page 4: ...he Software license warranty and limitation of liability SAFETY Improper use of OMEGA can lead to inju ry to persons or property and or malfunction of the product The OMEGA receiver should only be repaired by authorized JAVAD GNSS warranty service centers Users should review and heed the safety warnings in Appendix C MISCELLANEOUS The above Terms and Conditions may be amended modified superseded o...

Page 5: ...pareil numérique de la classe А respecte toutes les exigences du Réglement sur le matériel brouilleur du Canada RF Exposure evaluation for multi transmitter product procedures In mobile exposure conditions simultaneous trans mission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting an tennas incorporated in a host device based on the calculated power densi...

Page 6: ...6 www javad com Note N7NMC7700 can transmit only in any one of four modes in time of operation The worst case is transmitting in Cell band ...

Page 7: ...sition with respect to the origin of an Earth Center Earth Fixed coordinate system To calculate this po sition the receiver measures the distance called pseudoranges between it and at least four satellites The measured pseudoranges are corrected for clock differences receiver and satellites and signal prop agation delays due to atmospheric effects The posi tions of the satellites are computed from...

Page 8: ...a recording up to 16GB IEEE 1588 protocol support In Band Interference Rejection Multi Base Code Differential Rover Code Differential Base Advanced Multipath Reduction Event marker 1 PPS timing strobe CAN port External Reference Frequency Input Output Up to 2 high speed RS232 RS422 serial ports 2 USB Ports Host and Device Ethernet WiFi 5 GHz and 2 4 GHz Bluetooth and Bluetooth LE Internal 4G LTE M...

Page 9: ...S DIMENSION Bottom view Connectors Top view 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 6 17 1 On Off button 2 Battery status 3 Power status 4 GSM status 5 Bluetooth status 6 WiFi status 7 UHF status 8 Ethernet status 9 Satellites status 10 Position 11 Recording status 12 Power port 13 Ethernet port 14 MicroSIM slot 15 MicroSD slot 16 USB port 17 USB port ...

Page 10: ...Off Recording On Off Power management Battery Rechargeable Lightweight Li Ion bat tery 85 Wh nom Operation Time 12 hours on one charge External Power Input 10 30 V DC Charging Power management notifies user when battery needs charging and protects battery from overcharging Turning On Off To turn ON the receiver press and hold the pow er button until the LEDs briefly flash To turn OFF the receiver ...

Page 11: ...m specification the receiver may be permanently damaged voiding your warranty Make sure cords are located so that will not be stepped on tripped over or otherwise subjected to damage or stress Do not operate equipment with a damaged cord or plug replace immediately To re duce the risk of damage to the equipment pull by the plug body rather than the output cord when discon necting the equipment War...

Page 12: ...ication for the re ceiver s GSM module and enables the receiver s GSM functionality based on the subscribed services the receiver board accesses the GSM module which ac cesses the SIM card The SIM card usually remains inside the receiver Cards Installation Use the special tweezers to install and remove these tiny devices and to help mitigate oily finger prints on the contacts Align the card exactl...

Page 13: ...ensitive password if any and you should get connected automatically You will see the chosen access point change from blue to red indicating that it is current Sometimes you may need to restart the unit for de tection of Access Points This is a known issue with the operating system that is presently being worked on If you do not have WiFi or for some reason are un able to connect to it but do have ...

Page 14: ...gure the receiver and its components send commands to the receiver download files from the receiver s memory as well as upload new firm ware upload an OAF and upload configuration files to a receiver using NetView Establishing an USB connection Make sure the computer has JAVAD GNSS s USB driver installed available from www javad com be fore continuing Using the USB cable connect the USB port on th...

Page 15: ...ver as a Base station and the other receiver as a Rover Set up the Base receiver over a known point to begin collecting static observation data Set up the Rover receiver to begin collecting static or kine matic observation data Both Base and Rover receivers must be configured according to the desired survey method In applications where real time positioning results are required the Base receiver p...

Page 16: ...e changed parameters and new configura tion are saved Figure 5 Log Files tab Figure 6 TriPad tab 5 Open Positioning tab and set the Elevation mask to 15 degrees Figure 7 Elevation mask 6 To set up the base station open the Base tab and set the following parameters Antenna Phase Center Position APC enter latitude longitude and altitude ellipsoidal height values of the antenna position Do one of the...

Page 17: ...s or the current stand alone position while waiting for new RTCM CMR messages coming from the base Confidence Level for Ambiguity list box governs the process of the RTK engine fixing integer ambi guities The RTK engine uses the ambiguity fix indi cator when making a decision whether to fix ambi guities or not Low Medium and High correspond to the indicator s 95 99 5 and 99 9 states respectively T...

Page 18: ...eiver calculates the coordinates of the an tenna s phase center To determine the coordinates of the station marker the user must specify the follow ing Measured height of the antenna above the sta tion marker Method of measuring the antenna height Model of the antenna used Antennas have two types of measurements Vertical measured from the marker to the an tenna reference point ARP located on the b...

Page 19: ...ivers Dual frequency receivers have two major benefits First dual frequency receivers can estimate and re move almost all ionospheric effect from the code and carrier phase measurements providing much greater accuracy than single frequency receivers over long baselines or during ionospheric storms Secondly dual frequency receivers need far less observation time to reach the desired accuracy requir...

Page 20: ...ion Data link quality in percentage Time in seconds elapsed since the last re ceived message Total number of received correct messages dependent on the message type received Total number of received corrupt messages dependent on the message type received If the receiver is not for some reason receiv ing differential corrections or if none of the ports has been configured to receive differential co...

Page 21: ...iver Clearing the NVRAM Thereceiver sNon VolatileRandomAccessMemory NVRAM holds data required for satellite tracking such as almanac and ephemeris data and receiver position The NVRAM also keeps the current receiv er s settings such as active antenna input elevation masks and recording interval and information about the receiver s internal file system Even though clearing the NVRAM is not a common...

Page 22: ...ore contacting JAVAD GNSS support check the following Check all external receiver connections carefully to ensure correct and secure connections Double check for worn or defective cables Check all power sources Check that the most current software is down loaded onto the computer and that the most cur rent firmware is loaded into the receiver Check the JAVAD GNSS website for the latest updates The...

Page 23: ...tween the differential standards used at the Base and Rover receivers Ensure the Base and Rover receivers use the same corrections input output format Connect your receiver and a computer and start NetView Click and the Ports tab Use the same input out put format for both receivers Poor satellite geometry PDOP GDOP values are too high Conduct your measuring when PDOP values are low The elevation m...

Page 24: ...paratus in cluding amplifiers that produce heat Protect the power cord from being walked on or pinched particularly at plugs convenience recepta cles and the point where they exit from the appara tus Only use attachments accessories specified by the manufacturer Use only with a pole cart stand or tripod speci fied by the manufacturer or sold with the apparatus When a cart is used use caution when ...

Page 25: ...tely dry before storing Dry the unit with a soft clean cloth General Warnings JAVAD GNSS receivers are designed for measuring and measuring related uses that is measuring coor dinates distances angles and depths and recording such measurements This product should never be used Without the user thoroughly understanding opera tor s manual After disabling safety systems or altering the prod uct With ...

Page 26: ...900 Rock Avenue San Jose CA 95131 USA Phone 1 408 770 1770 Fax 1 408 770 1799 www javad com All rights reserved JAVAD GNSS Inc 2020 ...

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