LX Navigation LX160 User manual

LX160
Version 2.1
22.1.2002
LX navigation
+ 386 3 490 4670 + 386 3 490 46 71
[email protected] http://www.lxnavigation.si

LX160
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1. Contents
1. CONTENTS.......................................................................................................... 2
2. INTRODUCTION ................................................................................................. 4
1. CHECK LIST ........................................................................................................ 5
2. TECHNICAL DATA ............................................................................................... 5
3. DESCRIPTION OF SWITCHES............................................................................. 6
4. LCD INDICATOR................................................................................................. 7
5. PNEUMATIC........................................................................................................ 8
6. POWER ON ......................................................................................................... 9
7. TWO MAIN WORKING MODES ........................................................................... 9
8. SET-UP MENUS................................................................................................. 11
8.1. CONP (WIND COMPONENT).................................................................................... 11
8.2. DIST (DISTANCE) ............................................................................................... 11
8.3. TARG (TARGET ALTITUDE)..................................................................................... 12
8.4. ALT (ALTITUDE) ................................................................................................. 12
8.5. RES (ALTITUDE RESERVE)...................................................................................... 13
8.6. GPS ................................................................................................................ 13
8.7. PASS (PASSWORD).............................................................................................. 14
9. SYSTEM SET-UP MENU..................................................................................... 14
9.1. POL (POLAR) ..................................................................................................... 14
9.2. POLA,B,C,LOAD (POLAR PARAMETERS)....................................................................... 15
9.3. CONP(WIND METHOD) ......................................................................................... 16
9.4. IND1..4 (INDICATORS SETTINGS)............................................................................ 16
9.5. UNIT (MEASURING UNITS) .................................................................................... 17
9.6. SCSP -(SPEED COMMAND SPEED) ....................................................................... 18
9.7. TECO (TOTAL ENERGY COMPENSATION)...................................................................... 18
9.8. TABS(SC TAB).................................................................................................. 18
9.9. INT (VARIO INTEGRATING TIME).............................................................................. 19
9.10. PASS (DISABLE/ENABLE).................................................................................... 19
9.11. SC (ON/OFF)................................................................................................... 19
9.12. BATT (BATTERY VOLTAGE) .................................................................................. 20
9.13. OUTPUT FOR WINPILOT ..................................................................................... 20
9.14. FIL............................................................................................................... 20
9.15. BAL .............................................................................................................. 21
9.16. BUGS ............................................................................................................ 21
9.17. FINAL GLIDE CALCULATION .................................................................................. 22
10. SOME SPECIAL FUNCTIONS.......................................................................... 23
10.1. INITIALISATION OF MEMORY ................................................................................ 23
10.2. WIRING EXTENSION FOR WINPILOT....................................................................... 23
10.3. FAQ -FREQUENTLY ASKED QUESTIONS ................................................................... 24
APPENDIX............................................................................................................... 25

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11.1. TREE STRUCTURE ............................................................................................. 25
11.2. WIRING......................................................................................................... 26
11.3. DRILLING PLAN................................................................................................ 27
11.4. PINS............................................................................................................. 27
11.5. REVISION HISTORY........................................................................................... 28

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2. Introduction
The LX160 is an electrical vario meter and final glide calculator with the ability to receive
NMEA sentences from an external GPS device (COLIBRI, LX20, LX400, GARMIN …). This way
the LX160 calculates a final glide to a point selected on the GPS device. The LX160 calculates
the wind component. Without the external GPS device, the LX160 functions like a normal
electrical vario meter with final glide calculation. The pilot just enters the parameters
(distance, wind component, altitude of target point, polar). This instrument is made on the
LX5000 principle, so all the mathematics about final glide calculations are the same as the
LX5000.
This manual will teach you about the device, its functions and all the advantages. Please read
it carefully before you install the device. The best way to learn basic and more advanced
functions about the LX160 is to turn it on at home and go step by step through this manual.
We have done our best to achieve, as little handling during the flight as possible, if the on-
ground preparation has been optimal.
The manufacturer doesn’t take the responsibility for possible mistakes or misprints in this text
and gives no guarantee for accuracy of this manual.
This manual has been written with the greatest care and we have done our best to avoid any
mistakes but with all respect please check any doubtful statement and let us know. We would
be very grateful and we thank you in advance for any comment.
Our address:
LX Navigation d.o.o.
Tkalska 10 SLO 3000 Celje tel.+ 386 3 490 46 70 fax 71
E-mail [e-mail] http://www.lxnvigation.si

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1. Check list
•1 x LX160
•1 x LX160 cable
•1 x LCD indicator + 1 x LCD cable
•1 x Speaker
•1 x LX160 Manual
2. Technical data
Operating voltage: 9-16V
Nominal voltage: 12V
Current consumption: 110mA at 12V (LX160 + LCD indicator)
Operating temperature: from -10°C to +60°C
Storing temperature: -20°C to +70°C

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3. Description of switches
Figure 1 Switches
ON/OFF:
Switches power on or off.
SC/VARIO/AUTO: (mode selector)
•SC is speed command mode
•VARIO mode
•AUTO mode
MC:
After MC switch is activated the upper number shows the MC. After
App. 1 second this disappears. With a short press MC
increase/decrease for 0.1, with a long press MC increase/decrease
for 0.5.
BUGS:
•upper position (2) 10% glide ratio
degradation (
default )
•middle position (BUGS) 0% glide ratio
degradation (
default )
•lower position (1) 5% glide ratio
degradation (
default )
BALLAST:
•upper position is full ballast (2) +20% of min. load
(
default )
•middle position is without ballast (BAL)
•lower position with half of ballast (1) +10% of min. load
(
default )

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FILTER: (vario filter)
•upper position (2) 3 seconds-
default (very
strong filter)
•middle position (FIL) 0.5 seconds-
default
(almost no filtering)
•lower position (1) 1.5 seconds-
default
(weak filter)
AUDIO VOLUME:
With a long press the volume increases/decreases faster, with short press
volume is increased/decreased slower.
4. LCD indicator
LOW BATTERY
INDICATOR
BUGS
INDICATOR
VARIO MODE
INDICATOR
SPEED COMMAN
D
MODE INDICATO
R
LOWER
NUMBER
DISPLAY
UPPER
NUMBER
DISPLAY
NEEDLE
SPEED
COMMAND
RING
NEEDLE
SHOWS
VARIO NEEDLE
SHOWS
RELATIV
NEEDLE
SHOWS
NETTO
NEEDLE
SHOWS
SPEED
COMMAND
Figure 2 LCD indicator
The unit is powered from LX 160 via 485 cable. On the back there are two SUB D 9P
connectors, which are completely parallel. Both could be used like inputs or like outputs for
other units (LCD). 485 protocol is delivering data strings for four independent LCD vario
settings. Which data string will be accepted is defined using different positions of the DIP
switches on the backside. There are no other settings on the unit.
GLIDE PATH

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Figure 3 Rear side of LCD indicator
Address Switch 1 Switch 2 Switch 3 Switch 4
1 ON OFF OFF OFF
2 OFF ON OFF OFF
3 OFF OFF ON OFF
4 OFF OFF OFF OFF
PROHIBITED! OFF OFF OFF ON
5. Pneumatic
On the rear side of LX160 are three probes.
•On TE probe is connected total energy or static, if we havent total energy. If static is
connected, vario is not compensated. Electronic compensation is necessary.
•Pst is static pressure needed for speed.
•Ptot must be connected on total pressure in nose of glider (pitot). If this probe is not
connected properly, instrument will not work good. (on speed depends all important
calculations like glide path, speed commad, netto relativ, polar…)
Figure 4 Rear side of LX160
DIP switch
T
wo parallel SUB D

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6. Power on
After powering up the LX160, wait app. 40 sec. to warm up the sensors. On the LCD
indicator we will see displayed LX160 and the number of version.
Figure 5 After power on
7. Two main working modes
The LX160 has two main modes: VARIO and SC (speed command) mode. In the vario mode
the needle displays vario, the upper number displays average. The lower number display is
decided by the user in the “INDIC” set-up menu.
Figure 6 Vario mode
In SC mode, the needle displays SC, other information is selected by the user, the same as
in the vario mode.
Program
version

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Figure 7 SC Mode
The SC ring always displays SC value, no matter in which mode the LX160 is in.
Settings for VARIO mode and SC mode are different
Warning!
Altitude, which is displayed on the lower number is always set on zero (QFE)
after power on. In case you switch off the instrument during flight, the old
QFE remains if IAS is greater than 40km/h

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8. Set-up menus
We get to the set-up menu by pressing up the MC+ and VOL+ together.
The LCD indicator will display the first set-up menu. With the MC switch we can change
between the set-up menus. Values in set-up menus can be changed with the VOL switch .
8.1. CONP (wind component)
In first setting menu we are setting wind component in units which are selected in units table
Figure 8 Wind component
Wind conponent = TAS – GS
8.2. DIST (distance)
In this menu we are setting the distance to target point. With long press of VOL switch,
distance will increase/decrease for 10 units. Short press of VOL will increase/decrease the
distance for 1 unit. For GPS information, the lower number is available. Information about
GPS and distance is changed every second.
Figure 9 Distance to target point

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8.3. TARG (target altitude)
In target menu we can set the altitude of the target. In case, that we have altitude on
altimeter (ALT), set on QFE, and we want to fly back to our home airport (same as take
off), TARG must stay on 0. If the altitude on the LX160 is set on QNH, we need to set the
altitude of target. In that case we can make a final glide to each point selected, if we know
it’s altitude.
Figure 10 Target altitude
8.4. ALT (altitude)
Menu for setting altitude on QFE, QNH before take off or for correcting altitude during flight.
It’s pilot decision what kind of altitude will be displayed (QFE or QNH).
Figure 11 Altitude set-up

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8.5. RES (altitude reserve)
In this menu we are setting the altitude reserve. If the altitude reserve will be 200m, that
means, the final glide will be calculated 200m above the target point.
Figure 12 Altitude reserve
8.6. GPS
In this menu we enable or disable receiving of NMEA sentences from a GPS device. Default is
NMEA receiving is enabled. If we want to correct some calculated parameter (distance, wind
component), we must first disable NMEA, because if NMEA is enabled a GPS data is valid, we
are not able to change these two parameters. When we disable receiving of NMEA both
parameter values remain. Receiving of the NMEA can be enabled back at any time. If the GPS
device is not connected on the LX160, or the GPS data is not valid, this menu has no use.
(GPGGA, GPRMC, GPRMB)
Figure 13 NMEA is disabled,
NMEA data isn't detected
Figure 14 NMEA is disabled,
NMEA data is detected
Figure 15 GPS data valid
Figure 16 GPS data isn't
valid

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8.7. PASS (password)
If we enter the correct password, we have access to some special functions and settings.
Figure 17 Password menu
Passwords:
•04670 System set up menu
•01049 Automatic calibration of speed and vario on zero
This menu can be disabled. ( Ch. 9.10 ) IAS >50km/h
9. System set-up menu
9.1. POL (polar)
The LX160 contains a database of polars. We can choose from 85 different types of polars
(table). If the polar is set to index 0 (USER). The pilot can set the polar parameters (a,b,c
and wing loading kg/m2)
Figure 18 Polar

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1 ASH 25 33 DIMONA 65 NIMBUS4D
2 ASH 25E 34 DISCUS 66 NIMBUS4T
3 ASH 26 35 DUODISC 67 NIMBUS4M
4 ASH 26E 36 G102CLUB 68 NIMB.4DM
5 ASK 13 37 G103ACRO 69 NIMB.4DT
6 ASK 21 38 H205 70 NIMBUS4M
7 ASK 23 39 H304 71 PHOEBUSA
8 ASTIR C 40 HORNET 72 PHOEBUSB
9 ASW 15 41 JANTAR2B 73 PHOEBUSC
10 ASW 17 42 JANT.ST2 74 PIK 20E
11 ASW 19 43 JANT.ST3 75 PUCHACZ
12 ASW 20 44 JANUS 3 76 S-10
13 ASW 20 45 JANUS B 77 SF26
14 ASW 22 46 JANUS C 78 SF27M
15 ASW 24 47 JANUS C 79 SF27
16 ASW 27 48 JEANSAS 80 SF34
17 CIRUS 18 49 LS 1CD 81 SPEED AS
18 CIR.L26 50 LS 1 82 CIRRUS 75
19 CIRUS ST. 51 LS 3 17 83 ST.LIBELLE
20 CL.ASTIR 52 LS 3 84 SZD 51-1
21 DG100 53 LS 4 85 SZD 53-1
22 DG200 54 LS 6 86 TWINAS 2
23 DG300 55 LS 7 87 TWINAS 1
24 DG400 56 LS 8 88 TWINAS 3
25 DG400/1 57 MININIM 89 VENTUS
26 DG500 M 58 MISTRAL 90 VENTUS
27 DG500/2 59 MOSQUIT 91 VENT.A16
28 DG500 T 60 NIMBUS2 92 VENTUS B
29 DG600 61 NIMBUS2C 93 VENT.B16
30 DG600/17 62 NIMBUS3 94 VENT.C17
31 DG800/15 63 NIMBUS3D 95 VENTUS C
32 DG800/18 64 NIMBUS4
9.2. POLa,b,c,load (polar parameters)
If polar is set on index 0 (USER), then LX160 uses for calculating of glide path this four
parameters, which can be set by user in this four menus, where Pola is parameter a, Polb is
parameter b, Polc is parameter c and load is wing load of glider (kg/m2). Use POLAR.EXE
program for calculate a,b,c parameters.
Figure 19 Polar parameters

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9.3. ConP (wind method)
Two wind modes are available. Automatic (Wind component) and Fixed (set by user)
Figure 20 Wind methods
9.4. IND1..4 (indicators settings)
In this menu we can set, what will be displayed on the LCD indicator. We can make settings
for four different indicators (depends on the address switches on the back side of LCD
indicator). For each indicator we have prepared 10 templates (watch table below)
Figure 21 Indicator setting
mode VARO SC
needle lower
numbe
r
upper
numbe
r
needle lower
numbe
r
upper
numbe
r
SET0 VARIO DIST INT SC GP INT
SET1 VARIO GP INT SC GP INT
SET2 VARIO DIST INT SC DIST INT
SET3 VARIO GP INT SC DIST INT
SET4 VARIO GP INT NETTO DIST INT
SET5 VARIO GP INT RELATIV DIST INT
SET6 VARIO ALT INT SC GP INT
SET7 VARIO ALT INT SC DIST INT
SET8 VARIO ALT INT VARIO DIST INT
SET9 VARIO DIST INT SC GP INT
SET10 VARIO GP INT NETTO GP INT
SET11 VARIO GP INT RELATIV GP INT
SET12 VARIO GP INT VARIO DIST INT
SET13 VARIO GP INT VARIO GP INT

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9.5. UNIT (measuring units)
We can choose between four types of unit settings (European, English, American, Australian).
We can see them on table.
Figure 22 Units setting
Euro En US Aus
altitude m ft ft m
vertical speed m/s kts kts kts
wind speed km/ kts mp kts
IAS km/ kts mp kts
distance km nm ml nm

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9.6. ScSp - (SPEED COMMAND Speed)
In this menu we can set the speed at which the LX160 will switch from VARIO to SC mode if
AUTO SC is enabled.
Figure 23 SC speed
9.7. Teco (total energy compensation)
If we have the LX160 set-up for pneumatic TE, (connected to a TE probe), TE compensation
is set to 0%. In case, that we have connected to static pressure, TE must be user selected
from 0% to 150%.
Figure 24 TE compensation
9.8. tabS (SC TAB)
SC mode with no audio information in area ±1.5m/s
Figure 25 SC mode with no audio information

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9.9. INT (vario integrating time)
Time of integration (average vario) can be set in this menu. Time range is from 1 to 40
seconds
Figure 26 Integrator time
9.10. PASS (disable/enable)
During flight we can enable or disable PASS menu in set-up menu.
Figure 27 Access to PASS menu during flight
9.11. Sc (on/off)
Inverts external SC input
Figure 28 Inverting Speed Command input

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9.12. Batt (battery voltage)
Figure 29 Battery voltage
9.13. Output for WinPilot
Figure 30 Enable or disable output for WinPilot
9.14. Fil
For each switch position (0, 1 and 2 of FIL switch), different filter constants can be set. Filter
constant unit is a second.
Range: from 0 to 5 seconds.
Figure 31 Vario filter setting