vigram viDoc User manual

viDoc® Product Manual EN– Update 01/2022
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viDoc® Product Manual EN– Update 01/2022
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Content:
1 FCC Statements
1.1 FCC Statement (Applicable in U.S.)
1.2 FCC Radiation Exposure Statement
1.3 FCC Declaration of Conformity
1.4 RTTE Compliance statements
2 Safety Information
2.1 Regulations and Safety
2.2 Use and Maintenance
2.3 Type Approval
2.4 Operation in the Vicinity of other Radio Equipment
2.5 Exposure to High Frequency Radiation
2.6 Installing the Antenna
2.7 Lipo Battery Safety
2.8 Limitation of Use
2.9 Forbidden Use
3 viDoc® Product Description
3.1 Introduction
3.2 viDoc® GNSS Features
3.3 Related Information
3.4 Technical Support
3.5 Installation Guidelines
3.6 Disposal of the Unit and/or Lipo
3.7 Using the GNSS Antenna and Mounting it
3.8 Working with a Surveyor's Rod or Tripod
3.9 Configure and Apply
3.10 Switch Functions
3.11 Connect to the End Device (smartphone/tablet)
3.11.1 Data Logs
3.11.2 Standard Configuration
3.11.3 Firmware Innovations
3.11.4 Problem Handling
3.11.5 Protocols
3.12 viDoc® Laser Rangefinder Features
3.12.1 Connecting the Laser
3.12.2 Calibration of the laser
3.12.3 Using the Laser
3.13 Problem Solving
3.14 Measuring Accuracy
4 Technical data
4.1 Multi frequency antenna 36dB
4.2 Frontlaser / Buttomlaser

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1. FCC Statements
1.1 FCC Statement (Applicable in U.S.)
This equipment has been tested and found to comply with the limits for a Class B digital
instrument, pursuant to part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with part 15 of the FCC rules.
Operation is subjected to the following two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interference that
may cause undesired operation.

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1.2 FCC Radiation Exposure Statement
The radiated rf output power of the instrument is below the FCC radio frequency exposure
limits for portable devices according to KDB447498.
Canada
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus as set out in the radio interference regulations of the Canadian
Department of Communications. This Category II radiocommunication device complies
with Industry Canada Standard RSS-310.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de Classe B prescrites dans le règlement sur le
brouillage radioélectrique édicté par le Ministère des Communications du Canada. Ce
dispositif de radiocommunication de catégorie II respecte la norme CNR-310 d’Industrie
Canada.
Europe
This product has been tested and found to comply with the essential
requirements for a Class B device pursuant to European Council Directive
1999/5/EC on R&TTE on EMC, thereby satisfying the requirements for CE
Marking and sale within the European Economic Area (EEA). These requirements are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a residential or commercial environment.
Australia and New Zealand
This product conforms with the regulatory requirements of the Australian
Communications and Media Authority (ACMA) EMC framework, thus satisfying
the requirements for RCM marking and sale within Australia and New Zealand.
Taiwan – Battery Recycling Requirements
The product contains a removable Lithium-ion battery. Taiwanese regulations require that
waste batteries are recycled.
廢電池請回收
Waste Electrical and Electronic Equipment (WEEE)
For product recycling instructions and more information, please go to www.vigram.com.
Recycling in Europe:
To recycle vigram WEEE (Waste Electrical and Electronic Equipment, products that run
on electrical power.), Call [phone], and ask for the
“WEEE Associate”. Or, mail a request for recycling instructions to:
vigram GmbH
Jechtinger Strasse 21
D 79111 Freiburg
Germany
[phone]

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1.3 FCC Declaration of Conformity
vigram GmbH
Jechtinger Strasse 21
D 79111 Freiburg
Germany
[phone]
Declare under sole responsibility that DoC products comply with Part 15 of FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received,
including interference that may cause undesired operation

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1.4 RTTE Compliance statements
Czech
vigram AG tímto prohlašuje, že tento (viDoc® GNSS přijímač) je ve shodě se základními
požadavky a dalšími příslušnými ustanoveními směrnice 1999/5/ES.
Danish
Undertegnede vigram AG erklærer herved, at følgende udstyr (viDoc® GNSS modtager)
overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.
Dutch
Hierbij verklaart vigram AG dat het toestel (viDoc® GNSS ontvanger) in overeenstemming
is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG.
English
Hereby, vigram AG, declares that this equipment (viDoc® GNSS receiver) is in compliance
with the essential requirements and other relevant provisions of Directive 1999/5/EC.
Estonian
Käesolevaga kinnitab vigram AG seadme (viDoc® GNSS vastuvõtja) vastavust direktiivi
1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele
sätetele.
German
Hiermit erklärt vigram AG, dass sich das Gerät (viDoc®-GNSS-Empfänger) in
Übereinstimmung mit den grundlegenden Anforderungen und den übrigen einschlägigen
Bestimmungen der Richtlinie 1999/5/EG befindet.
Greek
ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ vigram AG ΔΗΛΩΝΕΙ ΟΤΙ (viDoc® GNSS δέκτη) ΣΥΜΜΟΡΦΩΝΕΤΑΙ
ΠΡΟΣ ΤΙΣ ΟΥΣΙΩΔΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ΔΙΑΤΑΞΕΙΣ ΤΗΣ
ΟΔΗΓΙΑΣ 1999/5/ΕΚ.
Hungarian
Alulírott, vigram AG nyilatkozom, hogy a (viDoc® GNSS vevő) megfelel a vonatkozó
alapvetõ követelményeknek és az 1999/5/EC irányelv egyéb elõírásainak.
Finnish
vigram AG vakuuttaa täten että (viDoc® GNSS-vastaanotin) tyyppinen laite on direktiivin
1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.
French
Par la présente vigram AG déclare que l'appareil (viDoc® récepteur GNSS) est conforme
aux exigences essentielles et aux autres dispositions pertinentes de la directive
1999/5/CE.
Icelandic
Hér með lýsir vigram AG yfir því að (viDoc® GNSS móttakari) er í samræmi við
grunnkröfur og aðrar kröfur, sem gerðar eru í tilskipun 1999/5/EC.
Italian
Con la presente vigram AG dichiara che questo (Ricevitore viDoc® GNSS) è conforme ai
requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.

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Latvian
Ar šo vigram AG deklarē, ka (viDoc® GNSS uztvērējs) atbilst Direktīvas 1999/5/EK
būtiskajām prasībām un citiem ar to saistītajiem noteikumiem.
Lithuanian
Šiuo vigram AG deklaruoja, kad šis (viDoc® GNSS imtuvas) atitinka esminius reikalavimus
ir kitas 1999/5/EB Direktyvos nuostatas.
Maltese
Hawnhekk, vigram AG, jiddikjara li dan (viDoc® GNSS riċevitur) jikkonforma mal-ħtiġijiet
essenzjali u ma provvedimenti oħrajn relevanti li hemm fid-Dirrettiva 1999/5/EC.
Norwegian
vigram AG erklærer herved at utstyret (viDoc® GNSS-mottaker) i samsvar med de
grunnleggende krav og øvrige relevante krav i direktiv 1999/5/EF.
Polish
Niniejszym vigram AG oświadcza, że (Odbiornik viDoc® GNSS jest zgodny z
zasadniczymi wymogami oraz pozostałymi stosownymi postanowieniami Dyrektywy
1999/5/EC.
Portuguese
vigram AG declara que este (Receptor GNSS viDoc®) está conforme com os requisitos
essenciais e outras disposições da Directiva 1999/5/CE.
Slovak
vigram AG týmto vyhlasuje, že (Prijímač viDoc® GNSS) spĺňa základné požiadavky a
všetky príslušné ustanovenia Smernice 1999/5/ES.
Slovenian
vigram AG izjavlja, da je ta (Sprejemnik viDoc® GNSS) skladu z bistvenimi zahtevami in
ostalimi relevantnimi določili direktive 1999/5/ES.
Spanish
Por medio de la presente vigram AG declara que el (viDoc® GNSS receptor) cumple con
los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la
Directiva 1999/5/CE.
Swedish
Härmed intygar vigram AG att denna (viDoc® GNSS-mottagare) står I överensstämmelse
med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av
direktiv 1999/5/EG.
The vigram viDoc® GNSS receiver integrates the Advanced nRF52832 Module MS50SFB
Bluetooth radio module
Model: MS50SFB, FCC ID: 2ABU6-MS50SFB, IC: 20896-MS50SFB, TELEC: 208-190043

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2. Safety Information
Before using the vigram® product, make sure you have read and understood all the
relevant information.
WARNING - This warning warns of a potential hazard which, if not avoided, could result
in serious injury or even death.
CAUTION: This warning alerts you to a possible hazard or unsafe practice that could
result in minor personal injury or property damage, or irrecoverable loss of data.
NOTE - The absence of specific warnings does not mean that there are no safety risks.
2.1 Regulations and Safety
The units contain integrated Bluetooth® radio technology and can also send radio signals
via the antenna of an internal radio modem or via an externally connected data
communication radio (also smartphone). The regulations for using the 450 MHz radio
modems vary greatly from country to country. In some countries, the machine can be
used without an end-user license.
For licensing information, contact your local regional distributor. Bluetooth operates in
license-free bands.
WARNING - Electromagnetic radiation can cause interference in other equipment, in
installations (e.g. medical equipment such as space travel or hearing aids) and in aircraft.
It may also affect humans and animals.
Precautions:
Although this product complies with the strictest standards and regulations, the possibility
of harm to humans and animals cannot be completely excluded. Do not use the product
near petrol stations, chemical factories, in areas with potentially explosive atmospheres
and where blasting occurs.
Do not use the product near medical equipment.
Do not use the product in aircraft.
Do not use the product near your body for a long period of time.
.
2.2 Use and Maintenance
This product is designed to withstand the rough handling and harsh environment typically
encountered in construction applications. However, the receiver is a high-precision
electronic instrument and should be handled with reasonable care. Dropping it even from
low heights may cause slight damage to the housing, antenna or electronics.
CAUTION - Operating or storing the receiver outside the specified temperature range may
damage it. Do not leave the unit unattended in the blazing sun or pouring rain.

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2.3 Type Approval
Type approval or acceptance covers technical parameters of the equipment with regard to
emissions that may cause interference. Type approval is granted to the manufacturer of
the transmission equipment, regardless of the operation or approval of the equipment.
Some countries have specific technical requirements for operation, in particular modem
frequency bands. To meet these requirements, vigram® may have modified your
equipment to obtain type approval.
Unauthorized modifications to the equipment will invalidate the type approval, the
warranty and the operating license of the equipment.
2.4 Operation in the Vicinity of other Radio Equipment
When operating the receiver in member states of the European Union and in other
countries complying with EU R&TTE requirements, in the vicinity of air navigation
equipment operating between 2700 and 2900 MHz or fixed, fixed satellites (space to
earth) or for mobile systems operating at 4170 MHz, a minimum distance of 10 meters
must be maintained between the receiver and such radio equipment.
2.5 Exposure to High Frequency Radiation
2.5.1 For Bluetooth radio
The radiated output power of the internal Bluetooth radio is below the FCC radio
frequency exposure limits. Nevertheless, the radio(s) should be used so that the vigram®
device is 20 cm or further away from the human body. The internal wireless radio(s)
operate within the guidelines of radio frequency safety standards and recommendations
that reflect the consensus of the scientific community. Vigram therefore believes that the
internal wireless radios are safe for consumer use. The energy emitted is far less than the
electromagnetic energy emitted by wireless devices such as mobile phones. However, the
use of wireless radios may be restricted in some situations or environments, such as
aircraft. If you are unsure of the restrictions, you should request authorization before
switching on the wireless radio.
2.6 Installing the Antenna
CAUTION - For your own safety and in view of the FCC's RF exposure requirements,
always observe these precautions:
• Always keep a minimum distance of 20 cm (7.8 inches)
between yourself and the radiating antenna.
• Do not place the antenna together with other transmitting devices.
This unit is designed to operate with the antennas listed below and has a maximum gain
of 4 dBi. Antennas that are not included in this list or have a gain greater than 4 dBi are
strictly prohibited for use with this unit. The required antenna impedance is 50 ohms.
To reduce possible radio interference to other users, the antenna type and its gain should
be selected so that the equivalent isotropically radiated power (EIRP) is not higher than
that allowed for successful communication.
Approved external antennas: Four-Arm Helix Antenna Type JCH/SY.

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2.7 Lipo Battery Safety
WARNING - Only charge and use the rechargeable lithium-ion battery in accordance with
the instructions. Charging or using the battery in unauthorized equipment may cause an
explosion or fire and result in injury and/or equipment damage.
To avoid injury or damage:
• Do not charge or use the battery if it appears to be damaged or leaking.
• Only charge lithium-ion batteries using simple smartphone USB chargers or
another charger specified for that battery.
• Discontinue charging a battery that emits extreme heat or a burning odor.
WARNING - Do not damage the rechargeable lithium-ion battery. A damaged battery can
cause an explosion or fire and result in personal injury and/or property damage.
To avoid injury or damage:
• Do not use or charge the battery if it appears to be damaged. Signs of damage
include discoloration, deformation and leaking battery fluid.
• Do not expose the battery to fire, high temperatures or direct sunlight.
• Do not immerse the unit in water.
• Do not use or store the battery in a vehicle in hot weather.
• Do not drop or puncture the battery and the unit.
• Do not open the battery or short-circuit its contacts.
WARNING - Avoid contact with the rechargeable lithium-ion battery if it appears to be
leaking. Battery fluid is corrosive and contact with it can cause injury and/or property
damage.
To avoid injury or damage:
• If the battery leaks, avoid contact with the battery fluid.
• If battery fluid gets into your eyes, rinse your eyes immediately with clean water
and seek medical attention. Do not rub your eyes!
• If battery fluid gets on your skin or clothing, wash off the battery fluid immediately
with clean water.

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2.8 Limitation of Use
See the Technical Data section. The unit is intended for indoor and outdoor use.
Do not use the product in potentially explosive atmospheres or in aggressive
environments.
The unit does not have IP certification.
WARNING - Watch out for false readings if the unit is defective, has been dropped or has
been misused or modified. Carry out regular test measurements. Especially after the unit
has been subjected to abnormal use and before, during and after important
measurements.
CAUTION - Never attempt to repair the product yourself. In case of damage, contact a
local dealer.
WARNING - Changes or modifications not expressly approved could void the user´s
authority
to operate the equipment.
2.9 Forbidden Use
• Using the product without instructions.
• Use outside the stated limits.
• Deactivation of safety systems and removal of information and danger signs.
• Opening the unit with tools (screwdriver, etc.).
• Use of accessories from other manufacturers without explicit permission.
• Carry out modification or conversion of the product.
• Deliberate blinding of third parties; also in the dark.
• Insufficient safety precautions during surveying
(e.g. when measuring on roads, construction sites, etc.).
• Deliberate or irresponsible behavior on scaffolding, when using ladders,
when measuring near running machines or near machine parts or unprotected
equipment.
• Aiming directly at the sun.

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3. viDoc® Product Description
3.1 Introduction
This manual describes how to set up and use a viDoc® GNSS Multi-Measurement Tool.
Even if you have used other Global Navigation Satellite System (GNSS) products or laser
rangefinders, vigram® recommends that you take the time to read this manual to learn
about the special features of your product. If you are not familiar with GNSS or laser
rangefinders, visit our website for an interactive look at vigram® and viDoc® at
www.vigram.com.
The viDoc® GNSS Multi-Measurement Tool (GMMT) includes a GNSS antenna, receiver,
Bluetooth® radio technology, 2 laser rangefinders that can be used as a rover or for
photogrammetry, and two batteries in a rugged, lightweight aluminum unit.
The LED allows you to monitor the radio reception and the power supply. Bluetooth
wireless technology enables wireless communication between the receiver and the
controllers (smartphones/tablets).
The viDoc® does not have the option of changing settings via key combinations.
To configure the receiver, a hardware-related configuration with the help of a PC/laptop is
required.
The connection between viDoc® and the matching end device is made via an adjustment
device (tablet) or a licensed quick-connect (SP Connect - Austria (smartphone) -
additional accessories required.
3.2. viDoc® GNSS Features
• 10 mm +1 ppm RMS horizontal and vertical precision when using
RTK corrections or an own base reference station (
information on this can be obtained from our support).
• Supported by version 2021-1.2 and higher of the vigram® SDK for third-party
applications.
• Ready for many NTRIP services. Subscription required.
• Small, lightweight design - receiver only at 242g/484g (USB power cable included)
• Fully functional, ready to use, with multi-frequency GNSS tracking (GPS,
GLONASS, BeiDou and Galileo).
• Two separate and independent lithium-ion batteries provide more than four hours
of GNSS rover operation (continuous full load) per charge.
• Bluetooth wireless technology for wireless, hassle-free operation with various
smartphones/tablets with SDK supporting apps such. as: vigram viDoc, vigramSite
or similar (available in the app store).
• Power button with LED display for power and battery indicator.
• Bluetooth integrated.
• IMU integrated.

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3.3. Related Information
Sources of related information include the following:
• Release Notes - The release notes describe new features of the product,
information not included in the manuals and any changes to the manuals. They
can be downloaded from the vigram® website.
• Vigram training courses - Consider a training course to help you get the most out
of your GNSS system. For more information, visit the vigram® website.
3.4 Technical Support
In case of problems with the hardware and a case of damage, you can get help at
https://vigram.zendesk.com/hc/de/categories/360003048920-viDoc
-> Submit request.
NOTE: If you use apps directly from vigram, support tickets must be submitted
directly via the apps.
NOTE: When using third-party apps, support tickets that are not related to a damage
event of the actual hardware must be submitted directly to the app provider.
3.5. Installation Guidelines
Mind the following guidelines when using the appliance:
When operating the receiver in member states of the European Union and in other
countries complying with EU R&TTE requirements, in the vicinity of aeronautical
radionavigation equipment operating between 2700 and 2900 MHz, or fixed satellites
(space to earth), or for mobile systems operating at 4170 MHz, a minimum distance of 5
meters must be maintained between the receiver and such radio equipment.
Place the GNSS antenna in a location with a clear view of the sky in all directions. Do not
place the antenna near vertical obstructions such as buildings, deep cuts, construction
vehicles, towers or tree tops.
GNSS rover and base station receive the same satellite signals from the same satellites.
The system requires five common satellites to provide RTK positioning.
GNSS satellites are constantly on the move. Because you can't measure at a particular
location now doesn't mean you can't measure there later when satellite coverage at the
location improves. Use the GNSS apps daily to determine the best and worst satellite
reception times for your location and then select measurement times that match the
optimal GNSS performance. This is especially important if you are working in the worst
GNSS locations.
To obtain a fixed position solution with centimeter accuracy, initialize the RTK rover
receiver. For initialization to take place, the receiver must be tracking at least five satellites
that the base station is also tracking. For multi-satellite constellation operation, for
example GPS, Galileo, Beidou and GLONASS, the receiver must track at least six
satellites. In order to continue to measure with centimeter accuracy, the rover must
continuously track at least four satellites, which the base station also tracks. The radio link
between the base station and the rover receiver must also be maintained.

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NOTE: Loss of satellite signals results in a loss of position accuracy i
n the centimeter range.
The housing is not waterproof, so avoid high humidity.
Avoid extreme environmental conditions when operating the unit, including:
• Water also condensing
• Heat above 35 °C
• Cold below -5 °C
• Corrosive liquids and gases
Avoid the following sources of electrical and magnetic noise:
• Petrol engines (spark plugs).
• Televisions and PC monitors.
• Alternators and generators.
• Electric motors.
• Devices with DC/AC converters.
• Fluorescent lights.
• Switching power supplies.
CAUTION - The viDoc®-GMMT is not suitable for operation on the vehicle where it is
subject to strong vibrations, i.e. operation on uneven terrain. Use in these conditions may
damage the receiver.
CAUTION - To comply with FCC RF exposure requirements, you must maintain a
minimum distance of 20 cm (approximately 8 inches) between yourself and the radiating
UHF antenna of this unit. For mobile operation, the maximum gain of the UHF antenna
must not exceed 5 dBi.
WARNING - This unit uses a rechargeable lithium-ion battery. To avoid personal injury or
property damage, make sure you have read and understood the safety information at the
beginning of this manual.
WARNING - Only charge and use the rechargeable lithium-ion battery according to the
instructions. Charging or using the battery in unauthorized equipment may cause an
explosion or fire and result in injury and/or equipment damage.
To avoid injury or damage:
• Do not charge or use the battery if it appears to be damaged or leaking.
• Stop charging a battery that gives off extreme heat or a burning smell.
For CAUTION - Do not damage the rechargeable lithium-ion battery. A damaged battery
can cause an explosion or fire and result in personal injury and/or property damage.
• Do not use or charge the battery if it appears to be damaged. Signs of damage
include discoloration, deformation and leaking battery fluid.
• Do not expose the battery to fire, high temperatures or direct sunlight.
• Do not immerse the battery in water.
• Do not use or store the battery in a vehicle in hot weather.
• Do not drop or puncture the battery.
• Do not open the battery or the device and do not short-circuit its contacts ->
Contact support immediately!

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WARNING - Avoid contact with the rechargeable lithium-ion battery if it appears to be
leaking. Battery fluid is corrosive and can cause injury and/or property damage:
1. If the battery leaks, avoid contact with the battery fluid.
2. If battery fluid gets into your eyes, rinse your eyes immediately with clean water
and seek medical attention. Do not rub your eyes!
3. If battery fluid gets on your skin or clothing, wash off the battery fluid immediately
with clean water.
A battery that has reached the deep discharge state cannot be recharged and must be
replaced. The following recommendations will ensure optimum performance and extend
the life of your batteries:
1. Fully charge all new batteries before use.
2. Do not allow the batteries to discharge below 5 V.
3. Keep all batteries charged continuously when not in use.
4. If you need to store the batteries, fully charge them before storage and then
charge them at least every three months.
5. The battery is supplied partially charged. Fully charge the battery before using it
for the first time.
• To charge the battery, only use a charger that is suitable for charging the
lithium-ion battery.
• If the unit has been stored for more than three months, charge the battery
before using the receiver.
To charge the battery:
• Make sure the ventilation slots on the back and bottom of the unit (viDoc®)
are clear.
• To power the charger, use the supplied cable.
• Plug the supplied cable (USB-C into the viDoc®). For an explanation of the
LED, see LED status indicator below.
• Charging takes approx. 3 hours per battery at room temperature.
LED Status Indicator

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3.6. Disposal of the Unit and/or Lipo
Discharge the lithium-ion battery before disposing of it or the unit.
When disposing of the unit, ensure that it is disposed of in an environmentally friendly
manner. Observe all local and national regulations for the disposal or recycling of
batteries.
3.7 Using the GNSS Antenna and Mounting it
There are 2 different GNSS antennas for viDoc® according to the attached list.
Working with the GNSS antenna:
1) Check the thread on your viDoc® and your antenna for possible dirt. (Clean only by
blowing out and not with the help of a compressor).
2) Screw the antenna straight onto the viDoc®. Be careful not to overtighten the
thread. Turn until you feel a slight resistance.
CAUTION - Do not overtighten the thread, this can lead to breakage.
The antenna cannot be used again afterwards and must be replaced!
NOTE: Non-approved antennas may damage the device.
This will void the manufacturer's warranty.
NOTE: Do not glue or paint the viDoc. Closed openings, including mystical seams,
can lead to faulty functionality. The user is responsible for any such damage.
3.8. Working with a Surveyor's Pole or Tripod
1) Mount the viDoc® on the tripod via its threaded device on the lower part.
If an adapter is available, attach it with the locking device facing upwards in the
direction of the laser.
2) Rotate until the device is noticeably tight and, if necessary, then place it on your
rover rod.
3) Only switch on the unit after this process.
CAUTION - Do not overtighten the thread, this may cause breakage.
3.9 Configure and Apply
The viDoc® has no controls to change settings or operate.
The unit can be configured in three ways:
• Via the Bluetooth protocol, connected via the same one.
• Use of a vigram® app.
• Using a third-party app that uses the vigram® SDK.
Communication always takes place via wireless Bluetooth technology. You will be
informed about updates accordingly.

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3.10 Switch Functions
On the left side of the unit you will find the on/off switch.
Press the switch in for 2 seconds.
The viDoc® switches on and the LED below it lights up green.
To switch the unit off, press and hold the switch again for 2 seconds.
The LED flashes green and goes off. The viDoc® is switched off.
NOTE - In case of problems with the connection to the NTRIP, switch off the unit and
switch it on again within 5 seconds. It is in the so-called HOT-MODE and finds its position
within seconds, provided you are in the open air and there is a suitable base station
near you.
3.11 Connect to the End Device (smartphone/tablet)
Make sure your battery is charged. Switch on your Bluetooth on the end device.
Start your viDoc® until the LED shows green.
NOTE: Register in advance in the respective app.
Depending on the app you are using, you may need to search for devices. Search for
viDoc® - (serial number) and select it.
Depending on the app, you can already establish a connection to your device. In many
cases, you will now be asked to enter your NTRIP data (additional service provider). The
device then connects to your mobile terminal. In the status display, you will see after 90
seconds at the latest whether you have reached the RTK-fix mode. In exceptional cases
during initial operation or in the event of major position changes, this may take up to 3
minutes once. In this case, restart the app and the viDoc®. Now you are ready to
measure.
NOTE - When using apps, you will be asked if the app is allowed to access your
Bluetooth?
If you answer NO, you will NOT be able to connect to the device.
NOTE - In all vigram® apps you can rent your NTRIP access, for a fee.
NOTE - For more information on your RTK, how GNSS works and similar topics,
visit the vigram® Knowledge- Base.
CAUTION - Depending on the correction data service (NTRIP), accuracies may vary.
Recommendations are available on request from vigram®.
CAUTION - You must be outdoors for full reception strength and there must be no
tall objects within 50 meters.

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3.11.1 Data Logs
The viDoc® transmits the NMEA protocol with all important metadata as standard.
Depending on the app application, you have the option of reading out or processing these
protocols.
3.11.2 Standard Configuration
The viDoc® is completely pre-configured and designed for the use case of static
measurement and measurement in motion (Structure for Motion) up to 20km/h.
3.11.3 Firmware Innovations
The viDoc® is equipped with a bootloader that can be controlled via your app.
If a firmware update is available, it can be installed by your app provider with your
consent.
3.11.4 Problem Handling
The following problems may occur when using viDoc®:
Type
Solution
No NTRIP connection at
known locations
Switch off the device after 90 sec. and restart it.
No NTRIP connection in
unknown locations
Switch off the device after 180 sec. and restart it.
No NTRIP connection
possible
Check your internet speed (min. 3G), check the distance to
the next base station of your correction service.
No satellites found
Check your antenna connection, check the radio
connection to the terminal.
Device does not switch on
Connect the device to the power supply for at least 10
minutes, then switch on the device with the power supply
connected.
Measurement accuracy is
not reached
Check the satellite coverage, check your internet speed,
check the distance to your base station, check the
technical accuracy of your correction service.
3.11.5 Protocols
UBX Input/output, binary, u-blox proprietary
NMEA Input/output, ASCII
RTCM 3.3 Input/output, binary

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3.12. viDoc® Laser Rangefinder Features
Accuracy: +-3mm
Measuring Unit: millimeter
Measuring Range: (without Reflection) 0.03-40m
Measuring Time: 0.1~4 seconds
Laser Class: Class II
Laser Type: 635nm, <1mW
Size: 25*45*12mm
Weight: About 9g
Voltage: DC 2.5~3.3V
Operating Temperature: 0-40 ℃ 32-104 ℉
Storage Temperature: -25~60 ℃ (-13~140 ℉)
3.12.1 Connecting the Laser
The laser rangefinders can only be addressed via the Bluetooth communication interface.
This is done via the app used in each case, provided that it offers the interface.
3.12.2 Calibration of the Laser
Each viDoc® is subjected to a strict quality control at the factory. The lasers are
individually calibrated for the specific device and their measuring accuracy (distance) is
checked.
WARNING - The lasers can be misaligned by concussions. As a result, measurement
inaccuracies may occur. In this case, recertification by the manufacturer vigram® is
required!
NOTE - The two lasers installed are different types and have different technical
characteristics.
3.12.3 Using the Laser
After connecting your viDoc® to the terminal, you can activate the laser.
The lasers support 2 different modes:
Fast Mode - high sampling rate with lower accuracy (up to 10x per second)
Slow Mode - low sampling rate with high precision (up to 4 seconds)
NOTE - The use of a range laser in conjunction with the GNSS RTK is recommended
in Fast Mode.
3.12.3.1 Laser Modes
Permanently ON
Laser is active and ready to measure
Laser flashes (beeps)
Buttom laser measures
Laser flashes
Front laser measures
Fast beeping
Fast Mode
Slow beep
Slow Mode
No laser on
Laser inactive

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3.13 Problem Solving
In rare cases there is a hardware-related function problem. In these cases,
restart your viDoc®.
If this does not resolve the error, contact our support.
3.14 Measuring Accuracy
The measuring accuracy depends on the distance, the lighting conditions, the ambient
conditions and the surface. Not all surfaces are suitable for measurement with the laser.