GeoMax Zenith35 Pro Series Administrator Guide

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
GEOMAX GNSS Zenith35 Series
How To Guide
Version 1.00
English

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
Table of Contents
1 ANTENNA MANAGEMENT ......................................................................3
1.1 Introduction.................................................................................................3
1.2 Zenith35 Base, Zenith35 Rover .................................................................. 4
1.3 Zenith35 Base, Zenith25(Pro) Rover........................................................... 4
1.4 Zenith35 Base, Zenith10/20 Rover ..............................................................7
2 DYNAMIC DNS ............................................................................... 10
2.1 Introduction............................................................................................... 10
2.2 Use Cases .................................................................................................. 11
2.2.1 Remote Access From Everywhere .......................................................... 11
2.2.1.1. Setting up The Base for Remote Access ............................................... 11
2.2.2 Multiple GSM Rover Connection (+10) .................................................. 13
2.2.2.1. Setting up The Base for Simultaneous Access (+10) ........................... 13
2.2.2.2. Setting up The Rover (+10) ................................................................. 15

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
1 ANTENNA MANAGEMENT
1.1 INTRODUCTION
The base receiver outputs the position with respect to the ARP (antenna reference point).
If the rover does not recognize the antenna on the reference side, then the final positions
will be biased by the antenna Phase Center Offset (PCO) values of the base antenna.
By default, the GeoMax Zenith rover antennas recognize all GeoMax Zenith antenna types
used as base (i.e. GeoMax Zenith10/20, 25, 25 Pro and 35), in addition to the
GPPNULLANTENNA and ADVNULLANTENNA antennas.
However, the current firmware of the Zenith10/20 and Zenith25 doesn’t have the new
GeoMax Zenith35 PCO values incorporated by default. Therefore, the new Zenith35 PCO
values need to be added manually until a new firmware is released for the Zenith10/20
and Zentih25 antennas.
This is important when the GeoMax Zenith35 sensor is used as a base with RTCM network
correction messages. This guide will explain how to add the Zenith35 antenna calibration
values on the rover side.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
1.2 ZENITH35 BASE, ZENITH35 ROVER
This combination works without an additional antenna calibration file, as the Zenith35 is
incorporated in the firmware as a default antenna type together with the PCO values.
1.3 ZENITH35 BASE, ZENITH25(PRO) ROVER
In this combination the Zenith35 PCO values need to be added manually. This can be
done via the GeoMax Assistant Zenith25 (Pro).
Please follow these steps:
1. Connect the Zenith25(Pro) to your PC and open the GeoMax Assistant Zenith25 (Pro).
2. Press Antenna management from the menu, and
3. un-tick the Automatic detection of base antenna option:
4. A window will open, where a new antenna can be added with the L1 and L2 PCO
values by pressing New:

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
5. Define the GeoMax Zenith35 antenna by it’s IGS name: GMXZENITH35. Add the L1
and L2 PCO values in meters, as shown below:
6. Press Add, the Add antenna window will disappear and the antenna will be available
in the IGS name of base antenna list in the previous window.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
7. Press Apply or select Automatic detection of base antenna. In both cases the
base antenna Zenith35 will be detected.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
1.4 ZENITH35 BASE, ZENITH10/20 ROVER
Zenith10/20 utilizes the NGS calibration files, which is based on the National Geodetic
Survey Calibration file. To load a calibration file on the unit, please do the following:
1. Connect the Zenith10/20 sensor to the PC and open the GeoMax Assistant. You will be
prompted with the following message:
2. Choose the calibration type:
3. Press OK, the following message will appear once the calibration
file is successfully uploaded:

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
4. Find the sensor on your PC and open the ”antenna” folder:
5. In the ”antenna” folder you will find the absolute calibration file loaded: ngs08.003.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
6. Due to the Zenith10/20 fw V2.12 not being updated with the GeoMax Zenith35
antenna as default, the following antenna information is missing from the ngs08.003
file.
7. Please download the latest calibration file from the partner area (http://geomax-
positioning.com/downloads.htm?cid=15079), which contains the Zenith35 calibration
values. Replace the loaded calibration file on the Zenith10/20 with the latest version
downloaded. Once the Zenith10/20 rover receives RTCM corrections from the
Zenith35 base, the calibration values will be automatically applied using the latest
antenna calibration file.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
2 DYNAMIC DNS
2.1 INTRODUCTION
The DynDNS (Dynamic Domain Name System) functionality allows the configuration of a
dynamic DNS service to ensure access to the Zenith35 base server’s RTK data stream
while it is using a dynamic IP address. It allows TCP/IP clients to use an internet domain
name (Host name) to address the Zenith35 sensor with a dynamic IP address.
The user needs to register at one of the offered DynDNS service providers to receive a
user name and password and create a unique host name to use, which can be used to
remotely access the sensor. Currently Zenith35 supports four DynDNS service providers.
In order to be able to use these services, please register and create an account at one of
the provider’s site:
Dyndns.com (http://dyn.com/dns/)
No-ip.com (http://www.noip.com/)
Easydns.com (https://www.easydns.com/)
Twodns.de (https://twodns.de/)
Please note that for the DynDNS base setup a special SIM card needs to be used, which
your cell phone network provider can setup. In order to be able to use your SIM card for
DynDNS, your provider needs to enable a service, which provides an APN (Access Point
Number) together with a range of open ports. Normally a SIM card with fixed IP address
supports this kind of setup. If you are not sure, please contact your provider and ask for
the current status of your SIM card.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
2.2 USE CASES
2.2.1REMOTE ACCESS FROM ANYWHERE
A typical use case for this DynDNS functionality is a Zenith35 receiver set up in base
mode with an internet connection via GSM/GPRS. In this setup the Zenith35 sensor will
have a different IP address every time the internet connection is established or after
running for a certain time. The goal is to remotely access your Zenith35 sensor with a
known host name instead of a dynamic IP address. A host name could be for example:
Myzenith35.net
Once the setup is done, the user can open the Z35WebManager of the base sensor, using
only the host name and the port.
2.2.1.1. SETTING UP THE BASE FOR REMOTE ACCESS
In order to be able to access, configure or check the Zenith35 with an internet connection
from any web-capable device, the DynDNS functionality has to be activated and be
configured accordingly with the GeoMax Z35WebManager.
Steps 1-13 describe how to enable the DynDNS functionality in the Zenith35:
1) Connect your Zenith35 to your PC or any web-capable device
2) Start the GeoMax Z35WebManager
IP address: http://192.168.10.1
Username: admin
Password: password
3) Go to Settings →Sensor Settings →Working Mode
4) Select RTK Base as Working Mode and GSM/GPRS as RTK Data Source
5) As method, please select P2P (Peer to Peer)
6) Enter the details for your SIM card provider (APN)
7) Enable Dynamic DNS
8) Select your Service Provider for DynDNS service
9) Enter your Host Name,User Name,Password and Port
10) Enter Number of simultaneous users (not relevant for this use case)

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
11) Click Save Settings
12) Go to Status Info →Position/Link Info
13) Click Start to start your base
Now the Zenith35 base is setup and ready to be accessed remotely with an internet
connection. In order to do so, simply enter the specific host name in the web browser,
such as the Myzenith35.net in the example below.
Once the host name is entered in the web browser, an Authentication is required to start
the GeoMax Z35WebManager. After the username and password are entered, the user is
able to configure, monitor or check the Zenith35 base sensor.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
2.2.2MULTIPLE GSM ROVER CONNECTIONS (+10)
Another important use case is the multiple and simultaneous access of up to 10 rovers to
one single Zenith35 base antenna with RTK correction data via a GSM/GPRS connection.
In addition, in this setup the DynDNS functionality has to be activated in the base. The
Zenith35 base receiver will have a known host name instead of a dynamically changing IP
address for example: Myzenith35.net.
After configuring the Zenith35 base receiver correctly, up to 10 rover antennas can
connect and receive RTK correction data from this single base antenna by simply using
the specific host name (instead of an IP address) and a given port.
2.2.2.1. SETTING UP THE BASE FOR SIMULTANEOUS ACCESS (+10)
In order to allow simultaneous access of several rovers to one single Zenith35 base
sensor, the DynDNS functionality has to be activated and be configured accordingly with
the GeoMax Z35WebManager in the base receiver.
Steps 1-13 describe how to enable and configure the DynDNS functionality in the
Zenith35:
1) Connect your sensor to your PC or any web-capable device
2) Start the GeoMax Z35WebManager
IP address: http://192.168.10.1
Username: admin
Password: password
3) Go to Settings →Sensor Settings →Working Mode
4) Select RTK Base as Working Mode and GSM/GPRS as RTK Data Source
5) As method, please select P2P (Peer to Peer)
6) Enter the details for your SIM card provider (APN)
7) Enable Dynamic DNS
8) Select your Service Provider for DynDNS service

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
9) Enter your Host Name,User Name,Password (or API token) and Port
10) Enter Number of simultaneous users
11) Click Save Settings
12) Go to Status Info →Position/Link Info
13) Click Start to start your base
Now your Zenith35 base is setup and ready to be accessed simultaneously by up to 10
(depending on the selected Number of simultaneous users) rovers.

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How To Guide © 2015 GeoMax AG, Widnau Switzerland
2.2.2.2. SETTING UP THE ROVER (+10)
In order to connect the Zenith35 rover to the Zenith35 base receiver with the host name
( refer to chapter 2.2.2.1), please follow the steps 1-10:
1) Connect your sensor to your PC or any web-capable device
2) Start the GeoMax Z35WebManager
IP address: http://192.168.10.1
Username: admin
Password: password
3) Go to Settings →Sensor Settings →Working Mode
4) Select RTK Rover as Working Mode and GSM/GPRS as RTK Data Source
5) As method, please select P2P (Peer to Peer)
6) Enter the details for your SIM card provider (APN)
7) Enter your Host Name (/IP address) and Port
8) Click Save Settings
9) Go to Status Info →Position/Link Info
10) Click Connect to connect your zenith35 rover to the base station
After a successful connection to the Zenith35 base receiver, your rover should receive RTK
correction data.