Manual LX NAV V7 (page 38 of 48) (English)

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V7 Version 3.01 October 2013

Page 1 of 48

Digital speed to fly variometer and final glide calculator

Version 3.01

LXNAV d.o.o. • Kidričeva 24a, 3000 Celje, Slovenia • tel +386 592 33 400 fax +386 599 33 522

info@lxnav.com • www.lxnav.com

V7 Version 3.01 October 2013

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Important Notices 4

1.1 Limited Warranty 4

Packing Lists 5

Basics 6

3.1 LXNAV V7 at a Glance 6

3.1.1 LXNAV V7 Features 6

3.1.2 Interfaces 7

3.1.3 Options 7

3.1.3.1 External Options 7

3.1.4 Technical Data 7

System Description 8

4.1.1 Push Button 8

4.1.1.1 Power Button 8

4.2 Rotary Switch 8

4.3 Switching on the Unit 9

4.4 User Input 9

4.4.1 Text Edit Control 10

4.4.2 “Spin” Control 10

4.4.3 Selection Control 10

4.4.4 Checkbox and Checkbox List 10

4.4.5 Slider selector 11

4.5 Switching off 11

Operating Modes 12

5.1 Main screen and needle 12

5.1.1 Flarm Warning 13

5.1.2 Direct link between PDA and GPS 13

5.2 Quick access menu 14

5.3 Settings Mode 15

5.3.1 Navigate 15

Target information can be received from PDA or GPS. 16

5.3.2 Logbook 16

5.3.3 QNH and RES 17

5.3.3.1 QNH 17

5.3.3.2 Safety Altitude 17

5.3.3.3 Set elevation 17

5.3.4 Vario Parameters 18

5.3.4.1 Vario needle filter 19

5.3.4.2 Vario sound filter 19

5.3.4.3 Netto filter 19

5.3.4.4 Relative filter 19

5.3.4.5 SC filter 19

5.3.4.6 Smart Filter 19

5.3.4.7 Needle range 19

5.3.4.8 Dead Band (SC tab) 19

5.3.4.9 Auto SC 19

5.3.4.10 SC switch 20

5.3.4.11 Vario Average Time 20

5.3.4.12 Netto Average Time 20

5.3.4.13 Auto reset integrator 20

5.3.4.14 TE compensation 20

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5.3.4.15 Temperature Offset 21

5.3.4.16 Inertial assisted vario 21

5.3.5 Sounds 21

5.3.5.1 Sounds settings 22

5.3.5.2 Equalization 24

5.3.6 Units 25

5.3.7 Display 26

5.3.8 Communication 27

5.3.8.1 Bluetooth on PDA port 27

5.3.9 Polar and Glider 29

5.3.10 Flarm 30

5.3.11 Password 30

5.3.12 Reset of accelerometer (g-meter) 31

5.3.13 About 31

Variometer and Altimeter 32

Altimeter 32

6.1 Speed Command 32

Flying with the LXNAV V7 33

7.1 On the Ground 33

7.1.1 Power on Procedure 33

7.1.2 Set Elevation and QNH 33

7.1.3 Pre-flight Check 34

7.2 Airborne 34

7.2.1 Final glide calculation 34

Installation 35

8.1 Installing the LXNAV V7 36

8.2 Connecting LXNAV V7 36

8.3 Cutout of V7 36

8.4 Installation of options 37

8.4.1 Ports and Wiring 37

8.4.1.1 LXNAV V7 ports 37

8.4.1.2 LXNAV V7 wiring 39

8.4.2 Configurations 40

8.4.2.1 NANO – V7 – OUDIE 40

8.4.2.2 NANO – V7 – MINIMAP 40

8.4.2.3 COLIBRI2 – V7 – OUDIE 40

8.4.2.4 COLIBRI,VOLKSLOGGER– V7 – OUDIE 41

8.4.2.5 Flarm/RedBox– V7 – OUDIE 41

8.4.2.6 FlarmMouse - FlarmView -V7 - OUDIE 41

8.4.2.7 FlarmMouse – V7 – OUDIE 42

8.4.3 V7D option (V7 repeater) 42

Firmware Update 43

9.1 Updating LXNAV V7 firmware using OUDIE 43

9.2 Updating LXNAV V7 firmware using PC 44

Options 46

10.1 Rear Seat Device (LXNAV V7D) 46

10.1.1 Data Exchange 46

10.1.2 Cable Wiring (LXNAV V7D) 46

10.2 Available cables for GPS and PDA ports 46

Revision History 48

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1 Important Notices

The LXNAV V7 system is designed for VFR use only as an aid to prudent navigation. All

information is presented for reference only. Terrain, airports and airspace data are provided

only as an aid to situation awareness.

Information in this document is subject to change without notice. LXNAV reserves the right

to change or improve their products and to make changes in the content of this material

without obligation to notify any person or organisation of such changes or improvements.

A Yellow triangle is shown for parts of the manual which should be read carefully

and are important for operating the LXNAV V7 system.

Notes with a red triangle describe procedures that are critical and may result in

loss of data or any other critical situation.

A bulb icon is shown when a useful hint is provided to the reader.

1.1 Limited Warranty

This LXNAV V7 product is warranted to be free from defects in materials or workmanship for

two years from the date of purchase. Within this period, LXNAV will, at its sole option, repair

or replace any components that fail in normal use. Such repairs or replacement will be made

at no charge to the customer for parts and labour, the customer shall be responsible for any

transportation cost. This warranty does not cover failures due to abuse, misuse, accident, or

unauthorised alterations or repairs.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF

ALL OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING ANY

LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU

SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE.

IN NO EVENT SHALL LXNAV BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR

CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR

INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do

not allow the exclusion of incidental or consequential damages, so the above limitations may

not apply to you. LXNAV retains the exclusive right to repair or replace the unit or software,

or to offer a full refund of the purchase price, at its sole discretion. SUCH REMEDY SHALL

BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.

To obtain warranty service, contact your local LXNAV dealer or contact LXNAV directly.

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2 Packing Lists

• LXNAV V7 (in Metric or Imperial units as specified)

• Main power cable for V7 + CAN terminator

• Speaker

• GPS cable - V7-GPS-IGC

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3 Basics

3.1 LXNAV V7 at a Glance

LXNAV V7 is standalone digital vario meter and final glide calculator with GPS and PDA/PNA

inputs/outputs. The unit has standard dimensions to fit into a glider panel - 57 mm diameter

(2¼"). It is also able to supply PDA/PNA with power (5VDC/1A). The unit has integrated

high precision digital pressure sensors, which are sampled more than 100 times per second.

Data is indicated with needle driven with stepper motor and displayed on 320*240 pixel,

two-inch, high brightness colour display. To adjust values and settings, LXNAV V7 has one

rotary knob combined with a push button.

LXNAV V7 can be expanded through CAN bus to one or more repeaters (LXNAV V7D). Both

pilots can have equal control of all functions from front or rear seat.

3.1.1 LXNAV V7 Features

• Extremely bright 2" (5 cm) colour display readable in all sunlight conditions with the

ability to adjust the backlight .

• One rotary switch (knob) with push button function is used for input.

• Pre-loaded polar database for almost all gliders.

• GPS and PDA inputs/outputs

• Flarm Indication, if Flarm is connected to the GPS port

• Mechanical needle driven by stepper motor indicating various data such as netto

vertical speed, relative (super netto) and vertical speed.

• 240x320 pixels colour screen for additional information such as average, thermal

vario, time, speed etc…

• Many custom audio settings

• 100Hz sampling rate for very fast response.

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• Speed to fly indication.

• TE compensation can be selected to be either pneumatic TE probe or electronic TE.

• Multilanguage user interface

• Audio equalizer, for better vario sound performance

3.1.2 Interfaces

• GPS port input/output on RS232 level (Standard IGC RJ11 connector)

• PDA port input/output on RS232 or LV-TTL (3.3V) level for PNA devices (RJ45 connector)

• Audio port (Standard 3mm phono jack)

• 1Mbit CAN bus for extension to V7D repeater

3.1.3 Options

3.1.3.1

External Options

By using a CAN bus system a second seat device can be connected. The unit installed in the

rear seat of the glider is independently powered and receives all necessary data from the

main unit. The communication between both units is exclusively via the CAN bus system.

3.1.4 Technical Data

• Power input 10-16 V DC

• Consumption of LXNAV V7 at 12 V:

o 120 mA - minimum brightness without audio.

o 180 mA - maximum brightness without audio.

• Consumption of LXNAV V7D at 12 V:

o 90 mA - maximum brightness without audio.

• 57 mm (2¼") standard aircraft cut-out for the LXNAV V7 vario unit; length 95 mm (not

including connector).

• Weight 330g (160g for V7D)

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4 System Description

4.1.1 Push Button

The Rotary switch also has a push button function. LXNAV V7 can detect short or long press

of push button, in most cases short press confirms action, long press cancels action or exits

from the menu Short press means just a click, long press means pushing button for more

than one second.

4.1.1.1

Power Button

The system is powered up using push button. A long press system will turn the V7 off.

4.2 Rotary Switch

The one rotary switch/knob with integrated pushbutton function can control all functions on

LXNAV V7. The rotary switch moves up or down through the menus. Variables can also be

changed using the switch. Pushing the button at the same time as rotating will step the

values in larger increments.

Example 1:

Set elevation menu; normally, values are with step 1m. If you push button in and rotate at

same time, the step will be 10m.

Example 2:

Entering password; Up/Down the numbers are changed. If you press and rotate, the cursor

will move left or right. Short press will move cursor one step right.

Rotary switch with

push button

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4.3 Switching on the Unit

A short press of the button with turn on the V7. The first LXNAV welcome screen will

appear with some system information (Device name, Version, Serial number...)

V7D cannot be powered up if V7 is not already powered up.

When the boot procedure is completed, setup elevation dialogue is shown.

By default setting Set Elevation page is disabled. It can be enabled in Setup

QNH&RES menu.

Push button also has power ON and OFF functions.

4.4 User Input

The LXNAV V7 user interface consists of many multi language dialogues which have different

input controls. They are designed to make input of names, parameters, etc., as easy as

possible. Input controls can be summarised as:

• Text editor

• Spin controls (Selection control)

• Checkboxes

• Slider control

To move the function from one control to another, rotate the rotary knob up or down as

follows:

• Clockwise rotation will select the next control.

• Counter clockwise rotation will select the previous control. PUSH button enters the

selected feature.

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4.4.1 Text Edit Control

The Text Editor is used to input an alphanumeric string; the picture below shows typical

options when editing text. Use the knob to change the value at the current cursor position.

Push button will move cursor right. Holding push button and rotationg knob, will move

cursor left or right. At last character position, push button will confirm edited value, long

press will cancel editing and exit that control.

4.4.2 “Spin” Control

“Spin” controls are designed for numeric parameters. Rotate the knob to increase/decrease

the selected value. Combination of push button and knob rotation will change the value with

a larger step. .

4.4.3 Selection Control

Selection boxes, also known as combo boxes are used to select a value from a list of

predefined values. Use the page selector to scroll through the list.

4.4.4 Checkbox and Checkbox List

A checkbox enables or disables a particular parameter. Press push button to toggle the

value. If an option is enabled a check mark will be shown, otherwise an empty rectangle will

be displayed.

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4.4.5 Slider selector

Some values like volume and brightness are displayed as a slider

With push button you can activate slider control, then with rotation of the knob you can

select the preferred value and confirm it with the push button.

4.5 Switching off

By pressing the push button for app. 5 seconds, LXNAV V7 will turn off. Same procedure is

for V7D, if V7D is on and we are attempting to switch off V7, V7D will also switch off.

All settings are saved in the power off procedure. We strongly recommend

switching off the unit using push button and not use a separate master switch..

If the system is powered off by a master switch changed data will not be saved.

Flight parameters at takeoff like target altitude and position will remain in stored

memory so your final glide calculations are not affected.

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5 Operating Modes

LXNAV V7 has three operating modes. A pilot has access to all of them using rotary knob

and push button. The diagram below shows the mode structure of the LXNAV V7.

• Main screen, all navigation and flight parameters defined by pilot

• Quick access, MacCready, Ballast, Bugs, Distance (in manual navigation without GPS)

and Wind component (in manual navigation).

• Settings, setup of the whole system

5.1 Main screen and needle

The man screen has a mechanical needle and a 320x240 color display with user selected

data.

Description of LXNAV V7 is shown on next picture.

GPS status

Battery

Needle type

Lower number

Rotary knob & push

button

Accelerometer bar

Mechanical needle

Average

force

Thermal average

MacCready symbol

Range

Upper number

Climb/cruise symbol

Flarm status

Speed to fly

bar

Bluetooth status

Home navigation

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Mechanical needle displays vario, netto, relative or speed to fly value. It can be setup

scale can be chosen (when ordered) in the range of -5 to 5 or from -10 to 10. Within the

software the range can be set to 2.5, 5, 10m/s or 5, 10, 20kts or 500, 1000, 2000fpm.

Upper number can be configured as average vario, time, flight time, task remaining time,

netto value, outside temperature or thermal average, steering course. It can be setup

separately for climb mode or cruising mode.

Lower number shows current altitude, distance to goal, arrival altitude, true airspeed, Last

60 minutes speed, altitude in feet or flight levels.

Speed to fly bar symbol is indicating which speed you have to fly according to current

MacCready setting, sink rate and speed. One arrow means 10units of speed faster or slower.

Up red arrows mean fly slower and down blue arrows mean fly faster.

Red diamond symbol can show average vertical speed or g-force.

Blue arrow symbol shows current MacCready value.

Green T symbol represents last thermal average value.

White bar, which is not shown on the picture above, displays arc between minimum and

maximum vertical speed value in last 20 seconds.

In LXNAV V7 there is an integrated 3 axis +-6g accelerometer. All accelerations can be

recorded and indicated with accelerometer red bar. Red bar, which is not shown on picture

above, displays maximum negative and positive acceleration in g.

BlueTooth symbol indicates detected BlutoothModule for V7 on PDA port.

Flarm symbol indicates presence of flarm device (pink) and also detection of flarm traffic

(red).

5.1.1 Flarm Warning

If Flarm warnings are enabled the following is a typical screen display:

The screen indicates relative position of threat. In the first image two gliders are

approaching inbound below, the second screen two gliders are approaching inbound, one on

left side and another the right . On third image we have active “undirected warning”

together with other flarm warnings with known direction.

5.1.2 Direct link between PDA and GPS

LXNAV V7 is able to make direct link connection between PDA and GPS. Normally GPS and

PDA communicate with LXNAV V7. In the direct link mode the user can transfer data from

PDA to GPS (Flight recorder) or the opposite way (read the flight). The direct link is

normally initiated by software such as SeeYou Mobile or ConnectMe.

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The picture above indicates a direct link.

This happens automatically when PDA send a

request for direct communication with flight recorder.

See tutorial on: http://youtu.be/nMZI7cJ_qjQ

5.2 Quick access menu

A short press of the push button activates the quick access menus. If “use GPS

navigation” is checked, only three Mc, Bugs and Bal are available. If “use GPS

navigation” is disabled two additional settings are available (Wind component and

distance).

In the last row of the box is calculated final glide (E) and required speed for that final

glide, values depends on MacCready, Bugs and Ballast setting.

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5.3 Settings Mode

In the setup menu users can configure the LXNAV V7. Turn the knob to select the

appropriate setup item. Press the PUSH button to enter a menu. A dialogue or sub-menu

will open.

5.3.1 Navigate

In this menu navigation settings can be configured.

If Navigate to home is enabled, LXNAV V7 will navigate back to the takeoff point. This

position has been stored in memory just before takeoff but only if GPS OK status is showing.

Navigate to home will not work if “use GPS data” is not checked.

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Use GPS data, enables the V 7 to receive GPS data on GPS port. If Use GPS data is

disabled manual navigation will be active, in that case GPS icon on main screen will not be

displayed. It means that pilot must manually enter distance and wind component (See

Chapter 5.2). If GPS is transmitting RMB sentences, LXNAV V7 will automatically calculate

final glide to that point. On picture below LXNAV V7 navigates to waypoint “Line 11”.

Be sure that you set correct target elevation. If target elevation is not set, LXNAV

V7, will not show Arrival altitude, but Required altitude. Required altitude is

the altitude that will be lost for the required distance.

GPS data will be received only if baudrate on GPS side is set at the same value as

set on LXNAV V7 in Comm. Menu. (See Chapter 5.3.8 )

Target elevation set to elevation of your departure. It can be adjusted any time.

Manual wind can be checked, when pilot wants to insert fixed value of wind component. In

that case V7 will not use it’s calculated wind for final glide calculations, but manual enterd.

Target information can be received from PDA or GPS.

5.3.2 Logbook

Each flight is stored in logbook.

If GPS data is present the logbook will show present date and time of departure. Manual

navigation (without GPS) will show duration and departure time will be marked with

question marks.

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5.3.3 QNH and RES

Turn the knob to select the required entry field. Press the PUSH button and start editing

the value.

5.3.3.1

QNH

This feature may be used to offset the altitude datum as the result of pressure changes

during the flight. Since changing the QNH influences the indicated altitude, care should be

taken when changing the value as an incorrect setting could upset the final glide calculation.

5.3.3.2

Safety Altitude

This setting is the altitude reserve or safety altitude and is the height that the instrument

adds to the final glide altitude required so the glider arrives over the final glide destination at

the selected safety altitude. Once the safety altitude has been specified, the pilot has to

keep the final glide indicator on 0 to arrive at the safety altitude.

5.3.3.3

Set elevation

If Set Elevation – show on start-up, item is not checked, Set elevation menu, will not be displayed

during start up. In this case elevation will be set to standard QNE (Flight level).

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5.3.4 Vario Parameters

This option is used to set the following parameters:

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5.3.4.1

Vario needle filter

Sets a time constant of the vario needle. The value can be adjusted between 0.1 and 5 s

with step 1.0 s or 0.1 s. Default value is 1.5 s.

5.3.4.2

Vario sound filter

Sets a time constant of vario sound. The value can be adjusted between 0.1 and 5 s with

step 1.0 s or 0.1 s. Default value is 1.5 s.

5.3.4.3

Netto filter

Sets a time constant of the Vario Netto needle. The value can be adjusted between 0.1

and 5 s with step 1.0 s or 0.1 s. Default value is 1.5 s.

5.3.4.4

Relative filter

Sets a time constant of the Vario Relative needle. The value can be adjusted between 0.1

and 5 s with step 1.0 s or 0.1 s. Default value is 1.5 s.

5.3.4.5

SC filter

Sets a time constant of the SpeedToFly needle. The value can be adjusted between 0.1

and 5 s with step 1.0 s or 0.1 s. Default value is 1.5 s.

5.3.4.6

Smart Filter

The Smart Filter allows additional filtering of the vertical speed. It defines the difference

between increasing vertical speed versus decreasing vertical speed. (E.g.: If the vario filter

is set to 1s and the Smart Filter set to 4s, the filtering for increasing vario would be 1s and

for decreasing vario would be 2s. This will produce an effect similar to a Sage Variometer.)

5.3.4.7

Needle range

Sets full scale range of the vario (2.5 m/s, 5 m/s or 10 m/s). Default value is 5 m/s (10 kts).

5.3.4.8

Dead Band (SC tab)

Defines the width of the audio dead band in speed to fly mode. Default value is ±1 m/s.

5.3.4.9

Auto Cruise (Auto SC)

Defines the conditions when the instrument will switch automatically between vario and

speed to fly mode.

• OFF: Switching is exclusively by an external switch connected to the V7.

• GPS: When the GPS detects that the glider is circling an automatic change over to vario

will happen after approximately 10 seconds. Detection of straight flight will cause a

changeover to speed command.

FILTER

0.5 to 5

Smart Vario

FILTER

1 to 8 or OFF

RAW

VARIO

FILTERED

VARIO

VAR

INDICATOR

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• TAS: When the TAS exceeds a pre-set value. The TAS at which switching occurs can be

selected in 5 km/h steps from 100 up to 160 km/h (or the equivalent in knots or mph).

• G-meter – for switching between cruise and climb mode will be used inertial system.

When glider will start circling, V7 will automatically switch from cruise to climb mode.

The external switch wired to the LXNAV V7 has absolute priority and will override

all other switching methods.

5.3.4.10

SC switch

The LXNAV V7 has an input for an external speed command switch. Using the external

switch it is possible to switch between SC and Vario manually. Setting the SC switch to ON

means that closing the switch will cause the instrument to enter SC mode and setting SC

switch to OFF means that closing the switch will select Vario mode. There is a third option

by setting SC INPUT to TASTER and connecting a push button to the input; each key press

will toggle between SC and Vario (mandatory setting for LX Remote).

There is another input called VARIO PRIORITY. When this input is activated by

grounding the appropriate wire the unit will change over to Vario immediately.

This input wire is set open (not grounded) as a factory default on delivery.

5.3.4.11

Vario Average Time

Defines the integration period for the average vario in seconds. The default is 20 seconds.

5.3.4.12

Netto Average Time

Defines the integration period for the average netto vario in seconds. The default is 10

seconds.

5.3.4.13

Auto reset integrator

Resets the integrator to zero when the V7 vario unit switches from SC to VARIO mode. If

this item is not checked the integrator will not be reset to zero.

5.3.4.14

TE compensation

The LXNAV V7 offers two methods of vario Electronic Total Energy Compensation:

• TE Pitot tube

• Electronic TE compensation

It is important to note that the method of TE compensation is set up when the

instrument is installed by virtue of the pneumatic connections made to the TE and

static ports. Changing the compensation type in the setup screen below WILL

NOT change the method of compensation - the pneumatic plumbing has to be

changed first.

If the TE pitot tube has been connected TE compensation should be set to 0%.

There is no further adjustment of TE compensation possible. Quality of the TE

tube is the one and only factor.

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If the electronic TE option has been installed TE compensation should be set to

100%.

The electronic TE compensation can be fine-tuned during flight using the following

procedure: it is essential that this is only done in smooth air; it is not possible to tune the

TE accurately in turbulent air.

Set TE compensation to 100%. Accelerate up to approximately 160 km/h (75 kts) and keep

the speed stable for a few seconds. Gently reduce the speed to 80 km/h (45 kts). Observe

the vario indicator during the manoeuvre. At 160 km/h the vario will indicate about –2 m/s

(-4 kts). During the speed reduction the vario should move towards zero and should never

exceed zero (slightly positive indications are acceptable). If the vario shows a climb the

compensation is too low; increase the TE%; and vice versa. Try another “zoom” to assess

the change and make further adjustments if necessary.

Electronic TE compensation is only effective when the pitot tube and static sources are co-

located and the pneumatic lines to the instrument are approximately the same length. The

best sensor to use is the combined pitot/static Prandtl tube. If problems are experienced

with the electronic TE compensation the most likely cause is the glider's static source. The

static source can be checked by plumbing the pneumatic tubes for electronic compensation

and then setting the TE: to 0%. In still air accelerate to approximately 160 km/h and slowly

reduce the speed. Observe the vario indicator. If the static source is good the vario should

immediately start to move to show a climb. If the needle firstly shows increased sink and

then moves to a climb, the static source of the glider is unsuitable and there is no way to

provide successful TE compensation electronically. The use of a dedicated and accurate fin-

mounted pitot/static source such as a Prandtl tube might help.

5.3.4.15

Temperature Offset

The LXNAV V7 is supplied with an external outside air temperature (OAT) sensor. With the

offset setting it will correct static errors of temperature measurement.

5.3.4.16

Inertial assisted vario

With LXNAV V7 possible to adjust influence of g-force on vario. This influence is very small

and can be set between 0 and 4.

5.3.5 Sounds

Sound menu is divided on two parts sound setting and Equalizer

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5.3.5.1

Sounds settings

In the Sounds settings menu audio settings for the LXNAV V7 and alarms settings can be

modified.

Vario Volume

The sounds slider changes the audio volume.

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Volume can be also adjusted directly with rotary knob in main menu.

Vario waveform

In this setting user can change the form of audio signal. There are three oprions:

Pure sine shape of signal, triangular or harmonic (sum of more Sine waves).

Vario Audio mode

Vario audio mode has the following options:

• Linear positive: sound is interrupted with silence every few milliseconds when the

needle is positive; on negative side sound is linear (not interrupted).

• Linear negative: inverse function to Linear positive.

• Linear: sound is linear and non-interrupted in full scale range.

• Digital positive: similar to Linear positive, except frequency is not changing linearly

but with larger steps.

• Digital negative: inverse function to Digital positive.

• Linear positive only: sound is present only at positive values, for negative values there

is silence.

• Digital positive only: similar function to Linear positive only, except the sound is

similar to the digital tone.

SC Audio mode

SC audio mode has four modes:

• SC positive: sound is interrupted with silence every few milliseconds when the needle is

positive; on negative side sound is linear (not interrupted).

• SC negative: inverse function to SC positive.

• SC: sound is linear and non-interrupted in full scale range.

• SC Mixed: for positive relative values the sound represents relative; for negative

relative values the sound represents SC (for that setting it is recommended to set SC

needle to relative). Dead band is active only for negative values.

• SC Netto: Sound follows netto value.

Audio frequencies

• Freq at 0% defines the tone frequency at 0 m/s.

• Freq at +100% defines the tone frequency at full + deflection.

• Freq at -100% defines the tone frequency at full – deflection.

Equalization preset

We have three options: default LXNAV speaker, flat setting or user defined.

Flarm Volume

With Flarm volume slider the volume of flarm warning beeps can be changed.

Volume can be also adjusted directly with rotary knob in main menu but only at

the moment that the Flarm alarm is active.

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Flarm warnings

In this menu low level/important/urgent Flarm alarm types can be set. We have four options:

• Disabled

• Flarm Beep

• Short voice message (traffic 2’o clock)

• Long voice message (Warning, traffic, 2'o clock, 3 kilometers, 200 meters below)

Beeps requested from PDA

PDA is able to send beep command to V7, if that feature is enabled, V7 will beep on PDA

request.

Thermal Assistant

Is a sound, different from other sounds from V7, which helps to the pilot in a thermal. Pilot

can set, how many seconds before thermal maximum, thermal „Ping“ will be triggered.

Speech Volume

With Speech volume slider the volume of voice warnings can be changed.

Volume can be also adjusted directly with rotary knob in main menu but only at

the moment that the voice is active.

5.3.5.2

Equalization

With rotary knob can be adjusted volume for each frequency. Setting is stored

under user preset.

Set equalizer to flat, then find the loudest frequency and decrease it to minimum.

Then adjust other frequencies to be heard at the same volume.

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5.3.6 Units

Use this menu to specify units, UTC time offset and type of ballast input.ž

• Load, which is entered in kg/m

or lb/ft

• Weight of water ballast, which is entered in kg or lb . If this option is used the weights

of the glider and pilot must be entered. Refer to Chapters 5.3.9 for more details of how

to enter glider and pilot weights.

• Ballast can be displayed as Overload factor or Wing Load or just weight of ballast.

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5.3.7 Display

The display menu controls screen brightness.

• Use Brightness control to adjust intensity of the LCD backlight.

• Mechanical needle, which can indicate vertical speed, speed to fly value, netto vertical

speed, or Relative vertical speed in vario or SC mode.

• Upper and Lower Numeric Display: The parameter displayed can be configured

separately for Vario mode and SC mode. Following parameters can be displayed:

average vertical speed, local time, flight time, task remaining time, Altitude (NN

altitude), Distance (distance to the navigation point), Arrival altitude (final glide altitude

difference to the navigation point), Speed (TAS), Leg speed (speed on leg), QNH (ft)

(NN altitude in ft), Flight levels, Outside air temperature, Battery voltage, Average

NettoQFE, Total Altitude.

• Blue Arrow Symbol enables or disables to display MC symbol

• Green T Symbol enables or disables the display thermal symbol

• Red Diamond Symbol have three options:

o OFF Red diamond is not displayed

o Average vario Shows average vario

o G-meter shows actual G-force (one line means 1g, the range of

accelerometer indication is +/-5g, you should not look at vario dial)

• Bar has three options:

V7 Version 3.01 October 2013

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o OFF bar is not displayed

o MinMax shows minimum and maximum vario value in last avereger time (by

default 20s)

o G-meter shows minimum and maximum G-force in last flight

5.3.8 Communication

Use to configure baudrate for GPS and PDA port.

Each port can be configured separately. If your PDA device does not support automatic

switch to DIRECT LINK between GPS and PDA port, here is manual GPS-PDA link menu.

When autobaudrate is enabled, LXNAV V7 will automatically search on all speeds to receive

valid data. When receives a valid NMEA sentence it will lock on that baudrate and stop

searching. In case that communication is lost LXNAV V7 will start again searching on all

baudrates.

Baudrate on PDA must not be lower than the setting on GPS port

To get better performance of LXNAV V7 it is recommended that both baudrates

be set as high as possible.

NMEA output on PDA port can be enabled or disabled. If you are not using a PDA port,

this setting should be disabled.

5.3.8.1

Bluetooth on PDA port

From version 2.02, V7 supports plug and play LXNAV V7 BT module. Module can be plugged

in PDA port.

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In case, that we want to use this module, we must select under PDA baudrate LXV7

Bluetooth. If Bluetooth will be detected, on main screen will be displayed BT icon.

In case of synchonization erreor, an error message will appear.

At power up of V7 same messages will be present.

On PDA side is necessary to pair Bluetooth with LXNAV V7 Bluetooth module.

Pairing is completed, when is entered pairing code „1234“.

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5.3.9 Polar and Glider

Use this dialogue to enter glider polar and other glider properties. As a default polar a

standard class glider is enabled automatically .

Polars for most modern gliders are already prepared. Use Glider type control, to list between

preloaded glider polars.

All glider data will be copied from the chosen polar. The check the best glide ratio and

minimum sink rate, to see if the polar data matches the glider performance, you may look in

MacCready setting menu. You can modify the polar by changing coefficients a, b and c. A

polar is defined as a quadratic equation with the parameters a, b, and c. Use the SeeYou

program (Tools->Polar) to calculate coefficients a, b and c for a given glider’s polar. The

program requires three sink points entered at selected speeds (e.g.: 100 km/h, 130 km/h,

and 150 km/h). The program will calculate the values of a, b and c, which should be noted

and entered into the LXNAV V7.

Stall speed is used to generate stall warnings which are available only with integrated Voice

module (Not integrated in LXNAV V7).

V7 Version 3.01 October 2013

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Weights must be entered and user should enter ballast in kilograms. There are three

weights to enter. Min. Weight

(Minimum glider weight)

corresponds to the min.load value

and represents the value at which the polar was measured or recalculated. Max. weight

(Maximum glider weight)

is the maximum take-off weight allowed for a glider. It is not used

in the calculation, it is just a reminder to the pilot of the maximum take-off weight. Empty

weight

(Empty glider weight)

is weight of the glider without pilot and ballast. The overload

factor is calculated as:

weightgliderMinimum

ballastWaterweightPilotweightgliderEmpty

overload

....

Empty glider weight is a weight of empty glider. This number can be found in a glider

book.

Pilot weight is weight of the pilot with parachute and baggage.

Water ballast is a weight of ballast.

Minimum glider weight is a

weight of empty glider + minimum pilot weight.

This value is

useful for when we want to display ballast in weight (kg or lbs).

Maximum glider weight is MTOW (

max. takeoff weight

) – this value is used only to limit

pilot to enter higher ballast, as is allowed with MTOW.

5.3.10 Flarm

By enabling the item, show flarm warning, Flarm warnings will be shown on the main

screen.

Each warning can be dismissed with push button. Dismiss time is time period during which

the instrument will not give you any warning after pressing dismiss. In the event that

dismiss while circling is enabled, the dismiss period will be extended until end of circling

flight is detected.

5.3.11 Password

There are several passwords which run specific procedures as listed below:

• 00666 Resets all settings to factory default

• 99999 will clean logbook

• 01048 can adjust needle on zero. (necessary only after update to version 2.0)

• 01049 can align airspeed on zero.

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Do not adjust needle, or autozero when airborne.

5.3.12 Reset of accelerometer (g-meter)

Accelerometer can any time be reset manually. After take off it is reset automatically.

5.3.13 About

In about page is information about firmware versions, hardware versions and serial

numbers.

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6 Variometer and Altimeter

All signals from the pneumatic sensors (altitude, speed) are derived from high quality

pressure sensors which mean that no flask is necessary. The vario signal is derived from the

altitude signal. All signals are temperature and altitude compensated. Mechanical needle

and colour display show the vario information as well as many other parameters.

The display is user configurable. The variometer can be configured to show:

• Range 5, 10 and 2.5 m/s or 10, 20 and 5 kts.

• time constants 0.1 s to 5 s, in addition there are 4 settings for electronic processing

for the vario signal.

• netto shows the air mass lift and sink.

• relative shows the lift or sink that would be achieved if the glider was circling at the

thermaling speed.

There are two ways by which the vario indications can be corrected for total energy.

Electronic TE compensation based on speed changes with time and pneumatic compensation

with a TE probe. The quality of the TE compensation depends entirely on the location, size

and dimension of the TE tube. The installation must be leak-proof.

If an electronic TE compensation is selected the TE (P

) port should be connected

to a good static pressure source. If pneumatic compensation is selected the TE

) port should be connected to the TE probe.

Altimeter

The altimeter of the LXNAV V7 is temperature compensated from -20ºC up to + 60ºC. The

altimeter is calibrated up to 20000 m.

6.1 Speed Command

Speed command flying based on the MacCready theory is a very useful tool to optimise

cross-country speed. There are many visual indicators (see Chapter 5.1). When the

instrument changes to speed command mode the audio will change and become a director

informing the pilot whether he is flying too fast or too slow. In order to reduce confusion

between vario and speed command audio some special features are incorporated

• Continuous audio signal in + possible (other kinds of signals can be chosen, see

setup).

• No audio at correct speed (dead band).

TE (Pst)

LXNAV V7

Electronic TE compenstaion

Compensation with TEprobe

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7 Flying with the LXNAV V7

To get the best out of the LXNAV V7 it is important that some preparation is done prior to

take-off. Trying to configure the instrument or set a task while flying is very hazardous

especially in a competition. At the least, it could spoil your whole day! Pre-flight preparation

will ensure that the flight will be both safe and enjoyable.

7.1 On the Ground

7.1.1 Power on Procedure

Press the push button. LXNAV V7 welcome screen will appear. The first screen shows the

version of the boot loader, firmware, hardware and serial number. The boot procedure

normally takes few seconds. When completed, Set Elevation dialogue is shown.

7.1.2 Set Elevation and QNH

This setting is crucial for final glide calculation: therefore pay careful attention to it.

The instrument will offer elevation over standard pressure level QNE. Use the knob to fine-

tune the elevation.

The QNH should be changed only when airfield elevation and QNH pressure are given. This

might happened on some competitions.

In all other cases elevation should always match QNH pressure.

The Set Elevation dialogues are not shown if the LXNAV V7 is switched off and on

during flying. Dialogue will also quit after 15 seconds if pilot does not do

anything.

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7.1.3 Pre-flight Check

After elevation setup the LXNAV V7 will switch to normal operation mode.

It is recommended that the MacCready, ballast and bugs settings be set to match the

current glider configuration. Press the push button. The dialogue for MacCready, Ballast

and Bugs will appear.

Use the rotary knob to modify the MacCready setting. Refer to Chapter 5.2 for more details.

It is also highly recommended to check the safety altitude setting. Refer to Chapter 5.3.3 to

find out how to define the safety altitude.

7.2 Airborne

7.2.1 Final glide calculation

Final glide is a function calculated from distance, target elevation, altitude, wind component,

MC setting and Bug setting. If V7 get enough data, everything is done automatically (GPS

and PDA provides all necessary information – position, target elevation). If such data is not

available, pilot must manually enter missing data, that V7 will calculate final glide.

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8 Installation

The LXNAV V7 requires a standard 57 mm cut-out.

Three pressure connectors are fitted to the back of the V7. A label shows their functions.

• P

static

means static pressure connector.

• P

total

means pitot or total pressure connector.

• TE means total energy TE pressure connector.

If the unit is to be configured for electronic TE compensation the connections are as follows:

• P

static

Static

• P

total

Pitot or Total pressure

• TE/P

static

Static

If the unit is to be configured for pneumatic TE compensation using a TE tube, then the

connections are:

• TE/P

static

TE tube

• P

static

Static

• P

total

Pitot or Total pressure

If the P

total

and Static are connected the wrong way around there will be no

integrator (average climb) and speed to fly indication during the flight.

The LXNAV V7 is connected to 12 Volt power via the 15-pin SUB-D connector. Optionally

LXNAV V7D can be connected via the CAN bus and the connectors are labelled with “CAN”

at each end.

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Instrument has no internal fuse. 3A external fuse is required! Power supply

cables should use a minimum of 0.5 mm² wires.

8.1 Installing the LXNAV V7

The LXNAV V7 vario should be mounted in a standard 57 mm hole.

Remove rotary knob cap with a knife or flat screw driver, then hold knob and unscrew it.

Remove remaining three screws. Install V7 into the panel, screw back all screws and knob.

Make sure that between knob and panel is some space, to push button.

Be sure that LXNAV V7 is placed far enough from compass. Inside is stepper

motor which generates magnetic field interferences.

8.2 Connecting LXNAV V7

LXNAV V7 is connected to 12V DC power supply. Red wire goes to + positive and blue wire

goes to – ground. If you don’t use V7D (second seat unit). Can connector should be left

terminated with CAN terminator. SC cable is used for external switch, for switching between

climb and cruise mode.

8.3 Cutout of V7

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Length of screw is limited to max 6mm!

8.4 Installation of options

To the LXNAV V7 can be optionally connected 2

seat repeater unit LXNAV V7D.

8.4.1 Ports and Wiring

8.4.1.1

LXNAV V7 ports

Static probe

Total pressure probe

(Pitot)

TE probe or

Static

Audio output

PDA port RJ45 type

GPS port RJ11

type

Main power supply

(V7 wiring)

V7 Version 3.01 October 2013

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PDA port (RJ45)

1 2 3 4 5 6 7 8

Pin numbers

Pin number Description

1,2 Ground

3 (output) Transmit from LXNAV V7 RS232 (e.g. Computer, IPAQ38/39xx)

4 (input) Receive to LXNAV V7 RS232 (e.g. Computer, IPAQ38/39xx)

5 (output) Transmit from LXNAV V7 LV-TTL (3.3V) (e.g. Oudie, HP302,

HP31x)

6 (input) Receive to LXNAV V7 LV-TTL (3.3V) (e.g. Oudie, HP302, HP31x)

7,8 5V OUTPUT (maximum 1A)

RJ45 plug is NOT designed in accordance with IGC standard. It can be used only

with dedicated cable. Do not plug unknown cable to it as it may damage LXNAV

V7 unit.

GPS port (RJ11)

1 2 3 4 5 6

Pin numbers

Pin number Description

1 (output) 12V DC, to supply GPS

2,3 N.C.

4 (input) Receive to LXNAV V7 RS232 (e.g.NANO power 232)

5 (output) Transmit from LXNAV V7 RS232 (e.g.NANO power 232)

6 Ground

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Main port

On main port is connected V7 wiring.

Audio port

Here is connected speaker with standard 3mm phono jack.

This port is designed to be connected 8 ohm speaker supplied with V7. Please

consult with your dealer, if you want to make different connection.

8.4.1.2

LXNAV V7 wiring

If CAN BUS cable is not connected to LXNAV V7D, CAN connector must be

terminated with CAN TERMINATOR!

SUBD15 Connector / female

SC switch

30 cm

50 cm

OAT

1.5m

OAT

LABEL:OAT

LABEL:SC

shield

Reserved for CAN BUS

SUBD9 / female

CAN H

CANH

CANL

12V IN

CAN L

CAN GND

AN GND

12V

LABEL: CAN BUS

GND

LM335Z

GND SHIELD

50 cm

LABEL: +12V DC IN

RED

BLUE

V7 Version 3.01 October 2013

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8.4.2 Configurations

8.4.2.1

NANO – V7 – OUDIE

8.4.2.2

NANO – V7 – MINIMAP

8.4.2.3

COLIBRI2 – V7 – OUDIE

USB cable

cable

Nano Power

cable

USB cable

NANO

OUDIE

cable

Nano Power

cable

NANO

MINIMAP

GPS

IGC

cable

USB cable

COLIBRI2

OUDIE CC-NP-OUDIE

COLIBRI

Power

V7 Version 3.01 October 2013

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8.4.2.4

COLIBRI,VOLKSLOGGER– V7 – OUDIE

8.4.2.5

Flarm/RedBox– V7 – OUDIE

8.4.2.6

FlarmMouse - FlarmView -V7 - OUDIE

FlarmView

cable

OUDIE CC-NP-OUDIE

GPS

IGC

cable

COLIBRI

VolksLogger

OUDIE CC-NP-OUDIE

GPS

IGC

cable

Flarm/RedBox

V7 Flarm

Splitter

FlarmView

cable

OUDIE

CC-NP-OUDIE

GPS

IGC

cable

FlarmView

V7 Flarm

Splitter

FlarmMouse

V7 Version 3.01 October 2013

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8.4.2.7

FlarmMouse – V7 – OUDIE

8.4.3 V7D option (V7 repeater)

One or more V7D repeaters can be connected together via CAN bus. In case of double

seater configuration, user can equally control and configure V7 vario from both seats.

OUDIE

CC-NP-OUDIE

FlarmMouse

V7 Version 3.01 October 2013

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9 Firmware Update

Firmware updates of the LXNAV V7 can be easily carried out using PDA or PC. Please visit

our webpage www.lxnav.com and check for the updates.

You can also subscribe to a newsletter to receive news about the LXNAV V7 automatically.

9.1 Updating LXNAV V7 firmware using OUDIE

Firmware update can be done with OUDIE version 4.20 or higher. You need CC-NP-OUDIE1

cable.

Be sure that PDA baudrate on V7 is set to 115200bps.

The procedure is following:

1. Download the latest firmware from http://www.lxnav.com/download/firmware.html

and update tool. Firmware consist of two files App_VINB_x.yy.lxfw and

App_VSEV_x.yy.lxfw.

2. Copy them to SD card (Oudie)

3. Go into Setup-Settings-LXNAV V7(2)

4. Click button “update firmware”

5. Choose application LXNUpdate.exe (if SeeYou did not find that file, you must

download it from our web site http://www.lxnav.com/download/firmware.html)

Firmware files must be in same folder as LXNupdate.exe. LXNupdate will not work if

in same folder is not copied also CelxV.dll.

6. Seeyou will close and firmware app will run

7. Choose firmware file App_VINB_x.yy.lxfw, correct Comm. Port and speed

(115200bps)

8. Press “update” button

9. Firmware will be updated by following sequence (Loading firmware, Discovering,

synchronizing, programming)

10. Exit the Program Power Down the V7 and restart the V7

11. Please repeat procedure for 2

firmware file App_VSEV_x.yy.lxfw from step 7.

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See tutorial on: http://youtu.be/bRrgHpKpzPU

9.2 Updating LXNAV V7 firmware using PC

Update procedure of V7 using PC is similar to procedure on OUDIE. You need CC-NP-232

cable and free serial port on your PC. If your PC has no serial ports, you can use USB to

SERIAL converter.

Be sure that PDA baudrate on V7 is set to 115200bps.

1. Download the latest firmware and update tool from our web site, section

downloads/firmware http://www.lxnav.com/download/firmware.html. Firmware is

compressed in a zip file. It consist of two files App_VINB_x.yy.lxfw and

App_VSEV_x.yy.lxfw.

2. Unpack file to one folder and run FlashLoader485App.exe (PC update tool)

3. Choose firmware file App_VINB_x.yy.lxfw

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4. Choose correct serial port and baud rate (115200bps)

5. Press “Flash” Button. If update starts, you will see a progress on PC and on V7.

6. Now you can choose second file App_VSEV_x.yy.lxfw and repeat procedure

from step 3.

Update od »VINB« firmware takes little longer as »VSEV«.

If update procedure is interrupted of any case. LXNAV V7 will not start. It will

cycle in bootloader application with red message “Flash integrity failed”.

Bootloader application is waiting to receive new firmware from OUDIE or PC over

PDA port. After successful firmware update LXNAV V7 will start again.

If V7 gives you message “Flash integrity failed”, means that firmware update was

not successful and need to be repeated. If the menus are still working behind the

message screen, you must repeat update with “App_VSEV_x.yy.lxfw” file

otherwise you must repeat update with “App_VINB_x.yy.lxfw” file.

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10 Options

10.1 Rear Seat Device (LXNAV V7D)

In two-seat gliders it is possible to install the LXNAV V7D rear seat device. The V7D looks

almost identical to the V7. In fact it runs on exactly the same software as on first seat

device.

The basic idea of two-seat configuration is that both devices work independently from each

other with the possibility of automatically exchanging various pieces of data (Loudness, Mc,

polar…).

10.1.1 Data Exchange

All data is exchanged between front and rear unit. LXNAV V7 also exchanges data with GPS

and PDA. Change of MC, Bal, Bugs, Volume, polar settings,... on PDA, will have also

influence on LXNAV V7. Same will happen also in opposite way.

10.1.2 Cable Wiring (LXNAV V7D)

10.2 Available cables for GPS and PDA ports

GPS port

Device

Cable code

Nano power

(RX/TX are crossed)

Generic RS232

with female

DB9

GPS

232

light recorders

FLARMs

with

standard 6p

IGC

connector RJ11 type, Red Box, Colibri, Colibri2, VL

GPS

IGC

Power flarm (RJ45)

, K6 mux

GPS

PDA port

Device

Cable code

OUDIE

OUDIE1

Generic RS232

with female DB9

232

IPAQ 31

0/314

IPAQ31

IPAQ 3

/39xx

/47xx

MiniMap

PDA and GPS are not designed in accordance with IGC standard. It can be used

only with dedicated cable. Do not plug unknown cable to it as it may damage

LXNAV V7 unit.

350 cm

Reserved for CAN BUS

SUBD9 / female

CAN H

CAN L

CAN GND (S

HIELD)

CAN GND (SHIELD)

12V

LABEL: CAN BUS

Reserved for CAN BUS

SUBD9 / male

LABEL: CAN BUS

V7 Version 3.01 October 2013

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V7 Version 3.01 October 2013

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11 Revision History

November

2011

Initial release of owner manual

January 2012

New chapters

Ch.

8.4.2

, Ch.

8.2

March 2012

New

release of version 1.97, mod. Ch.

5.3.8

March

2012

New release of version 1.98, mod. Ch.

5.3.8

(removed altitude source )

June 2012

New release of version 2.00, m

od.

Ch.

, C

4.3

, Ch

5.3.11

August 2012

New release of version 2.02,

New Ch.

5.3.8.1

, Mod Ch.

5.1

, Ch.

5.1.1

October 2012

Swapped chapters

10.1.2

and

10.2

, Updated

5.3.8.1

November 2012

Added chapter

8.4.2

(Configurations)

February 2013

SC tab renamed to Dead Band Ch.

5.3.4.8

September

2013

New release of version 3.00

New/updated chapters Ch.5.3.1, 5.3.4.3, 5.3.4.4, 5.3.4.5, 5.3.4.9,

5.3.4.12, 5.3.4.13, 0, 0, 0, 5.3.3, 5.3.4, 5.3.5, 5.3.6, 5.3.8, 5.3.9,

5.3.10

October 2013

New release 3.01

Updated chapter 5.3.1, new chapter 7.2.1

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