Coretronics TripTek 2500-X User manual

Motor Coach Trip Computer
Operator’s Manual
MODEL 2500-X

Trademarks Sawtooth Embedded Systems is a registered trademark, and
TripTek is a trademark of Sawtooth Embedded systems.
Sawtooth Embedded Systems
12301 W. Explorer Dr. Suite 126
Boise, ID 83713
Telephone: [phone]
Fax: [phone]
www.triptek.net
Patented

Table of Contents
Overview …………………….……………………………………………………………….1
Description ….………………………………………………………………………………..1
Display ………………………………………………………………………….…………….1
Keypad Keys ………………………………………………………………….……………...2
Operating the TripTek Computer ………………………………….………………………3
Check List Screen …………………………………………………………………………...3
Today Screen ………………………………………………………………….……………..4
Leg Screen …………………………………………………………………………………...5
Trip Screen …………………………………………………………………………....……..5
Coach Data Screen ……………………………………………………………………….…6
Maintenance, Setup & Adjustment Screens …………..……………………………..……7
Maintenance Screen ……………………………..….…..…………………………………..7
Compass Zone Adjustment Screen ………………………………………………………...7
Customer Service Screen …………………………………...……………………………....8
Maintenance Setup Screens ………………………………………………………………...8
Compass Calibration ………………………………………………………………………..9

Operator’s Manual
Series 2500
02/01/02
Overview
TripTek is a trip and coach management computer designed for motorhomes. By receiving data
from multiple sources, i.e. electronic engine computer, compass and temperature sensors
(optional), and other sources, the system collects, analyzes, and saves data in memory and then
displays information on the rear vision monitor.
Description
TripTek is comprised of multiple parts: a keypad, computer (behind dash), compass and
temperature sensors (optional), and utilization of the rear vision monitor for display.
Display
When the ignition is turned on, a pre-trip CHECK LIST is displayed to guide the operator
through a list of items to verify readiness of coach for travel.
To make efficient use of the data collected, and to best serve an actual vehicle trip, the system
offers the operator four separate screens: TODAY, LEG, TRIP, and COACH DATA.
The TODAY screen is designed to give you daily information. It provides miles to scheduled
destination, time to destination, miles traveled, time traveled, average MPG and average MPH.
As an option, it will also give you both inside and outside coach temperature and compass
heading.
The LEG screen is designed to give you information from fill to fill or for a trip. It provides
average MPH, time traveled, miles traveled, gallons used (by engine), average MPG, and road
speed.
The TRIP screen is designed for long term data tracking for a complete trip or longer. It provides
average MPH, hours traveled, miles traveled, gallons used (by engine), average MPG and current
MPG.
The COACH DATA screen is designed to give you both coach and engine/transmission
performance and operational data. It provides gears select & monitor, turbo boost, engine
temperature, transmission temperature, oil pressure, oil temperature and average MPG.
On a second level of screens there will be MAINTENANCE, COMPASS ZONE ADJUSTMENT,
CUSTOMER SERVICE, MAINTENANCE SETUP, COMPASS CALIBRATION.
The MAINTENANCE screen displays when to change ENGINE OIL, ENG. FUEL FILTER,
TRANSMISSION OIL, GENERATOR OIL and GEN. FUEL FILTER.
The COMPASS ZONE ADJUSTMENT screen is used to maintain compass accuracy by state. To
achieve maximum accuracy, it is recommended to change the zone setting when traveling from
state to state.
The CUSTOMER SERVICE screen is to give the operator easy access to the phone numbers and
web page of the coach manufacturer.
Page 1

The MAINTENANCE SETUP screen is to set the sequence (miles for engine and hours for
generator) for maintenance.
The COMPASS CALIBRATION screen is for calibration of the compass after its initial
installation or anytime the compass sensor is replaced or relocated.
Keypad Keys
(Maintain rear vision monitor in “on” position to display trip data)
Use the up ___ and down ___ keys to step through each line item of the CHECK LIST.
Use the VIEW key to move out of the CHECK LIST screen and go to the trip data screens.
The VIEW key displays the four screens: TODAY, LEG, TRIP, and COACH DATA. By pressing
this key, with the monitor on, the computer will sequence through the four data screens and one
blank screen. The system is also designed to sequence forward or backward, depending on which
side of the key is pressed. After fifteen minutes with no user activity, data on current screen will go
blank.
The SCREEN key will turn the rear vision image on or off.
Working the VIEW and SCREEN keys together will give you the following options:
Data on picture: The ability to view a data screen and still see the rear vision image.
Data only: View data screen only with a dark background for great contrast.
Picture only: View rear vision image only.
Standby: A dark screen.
The RESET key will zero all or part of the data on the currently viewed screen.
The up ___ and down ___ keys set miles to be traveled today. Holding down a key will scroll
through numbers. This is operational only on the TODAY screen.
To get the second level SCREEN SELECTION screen, push the up ___ and down ___ keys
simultaneously.
SECOND LEVEL
Use VIEW key to change selection.
Use RESET key to select screen.
Use VIEW key to return to TODAY screen (or as noted).
Page 2

Operating the TripTek Computer
Model 2500
VIEW
SCREEN
RESET
TripTek
CHECK LIST
9JACKS AIR LEV. UP
9ANTENNA DOWN
9AIR VENTS CLOSED
ALL DOORS LOCKD
ENGINE MAINT.
TODAY NW
OUT 000 qF IN 000 qF
0000 MI TO GO
00:00 TI TO GO
0000.0 MI TRAVLD
00:00 TI TRAVLD
00.0 MPG AVRGE
00.0 MPH AVRGE
Turn the ignition switch ON.
Turn the rear vision monitor ON. Display rear vision picture.
Press the SCREEN key on the keypad to eliminate the rear vision image, if
desired. To re-display the image, press SCREEN again.
Note: If vehicle is put into reverse, the rear vision system will override the
computer and clear TripTek data from the screen until transmission is
taken out of reverse.
With the above steps completed, the “CHECK LIST” screen will be displayed
on the backup monitor.
There will be multiple screens displaying checklist items.
“CHECK LIST” will only come up when ignition is first turned on.
Press the VIEW key on the keypad. The “TODAY” screen will display on the
backup monitor.
Note: If there is no interaction with the keypad for at least fifteen minutes,
information on the screen will turn off.
0’s on the screen represent the maximum available digits.
Text may precede data on some systems.
Check List Screen
The CHECK LIST screen is designed to give you a list of items to verify readiness of coach for travel.
CHECK LIST
9JACKS/AIR LEV. UP
9ANTENNA DOWN
9AIR VENTS CLOSED
ALL DOORS LOCKD
ENGINE MAINT.
This screen will give you a list of items to check off to insure readiness of coach
for travel.
If a line item is blinking (i.e. “ENGINE MAINT.”), it would imply that service
is required.
Page 3

VIEW
SCREEN
RESET
TripTek
Using the up ___ and down ___ keys will let you step down each line item and
check them off as you verify completion of task.
If a line item is blinking, press VIEW to move to the appropriate screen (i.e.
“MAINTENANCE”) to evaluate the problem.
Press VIEW key again to return to “CHECK LIST”.
Press VIEW key to move out of “CHECK LIST” and into “TODAY” screen.
Will function only on non-blinking lines.
The “CHECK LIST” is only visible when ignition is first turned on.
Today Screen
The TODAY screen is designed to give you daily information.
TODAY NW
OUT 000 qF IN 000 qF
0000 MI TO GO
00:00 TI TO GO
0000.0 MI TRAVLD
00:00 TI TRAVLD
00.0 MPG AVRGE
00.0 MPH AVRGE
VIEW
SCREEN
RESET
TripTek
NW: Compass Heading on all screens (optional).
OUT/IN TEMP: Outside and inside coach temperature (optional).
MILES TO GO: Remainder of user entered miles to scheduled
destination.
TIME TO GO: Approximate time to scheduled destination, utilizing
“MILES TO GO” and “MPH AVERAGE”.
MI TRAVELED: Miles traveled since “TODAY” screen
reset.
TIME TRAVLD: Time traveled since “TODAY” screen reset.
MPG AVERAGE: Average miles per gallon since “TODAY” screen
reset.
MPH AVERAGE: Average miles per hour since “TODAY” screen
reset.
Note: If a wrench is displayed next to compass heading on any screen, a
maintenance item needs attention.
Press RESET and follow screen instructions to zero out “TODAY” screen.
Using the up ___ and down ___ keys, set the miles you will travel today. The
longer the key is held down, the faster the number will scroll. Miles can be
changed throughout the day.
Press VIEW to return to “TODAY” screen.
Note: As “MILES TRAVLD” changes, “MILES TO GO” and “TIME TO GO”
will also change accordingly.
Press SCREEN to turn rear vision image on or off.
Press VIEW to move to the “LEG” screen.
Note: To move forward or backward through the screens, press the side of the
VIEW key that displays chosen direction.
Page 4

Leg Screen
The LEG screen is designed to give you information from fill to fill.
LEG NW
00.0 MPH AVERAGE
000:00 TIME TRAVLD
0000.0 MI TRAVELED
0000½ GALLON USED
00.0 MPG AVERAGE
00.0 ROAD SPEED
VIEW
SCREEN
RESET
TripTek
NW: Compass Heading (optional).
MPH AVERAGE:Average miles per hour since “LEG” screen reset.
TIME TRAVELED: Time traveled since “LEG” screen reset.
MI TRAVELED: Miles traveled since “LEG” screen reset.
GALLONS USED: Gallons of fuel utilized by engine from the time of
“LEG” screen reset. Data is received from engine
computer.
MPG AVERAGE: Average miles per gallon since “LEG” screen reset.
ROAD SPEED: Current coach speed.
Press RESET and follow screen instructions to zero out “LEG” screen.
Press SCREEN to turn rear vision image on or off.
Press VIEW to move to the “TRIP” screen.
Trip Screen
The TRIP screen is designed for long term data tracking for a complete trip or longer.
TRIP NW
00.0 MPH AVERAGE
0000 HR TRAVELED
00000 MI TRAVELED
0000 GALLON USED
00.0 MPG AVERAGE
00.0 MPG CURRENTRRENT
VIEWVIEW
SCREENSCREEN
RESETRESET
TripTekTripTek
NW: Compass Heading (optional)
NW: Compass Heading (optional)
MPH AVERAGE: Average miles per hour since “TRIP” screen reset.MPH AVERAGE: Average miles per hour since “TRIP” screen reset.
HRS TRAVELED: Hours traveled since “TRIP” screen reset.HRS TRAVELED: Hours traveled since “TRIP” screen reset.
MI TRAVELED: Miles traveled from time of “TRIP” screen reset.MI TRAVELED: Miles traveled from time of “TRIP” screen reset.
GAL USED: Gallons of fuel utilized by engine from time of
“TRIP” screen reset. Data is received from engine
computer.
GAL USED: Gallons of fuel utilized by engine from time of
“TRIP” screen reset. Data is received from engine
computer.
MPG AVERAGE: Average miles per gallon since “TRIP” screen
reset.
MPG AVERAGE: Average miles per gallon since “TRIP” screen
reset.
MPG CURRENT: Instantaneous miles per gallon.MPG CURRENT: Instantaneous miles per gallon.
Press RESETPress RESET and follow screen instructions to zero out “TRIP” screen.
Press SCREEN to turn rear vision image on or off.
Press VIEW to move to the “COACH DATA” screen.
Page 5

Coach Data Screen
The COACH DATA screen is for coach and engine performance.
COACH NW
00 GEAR 00
00 TURBO PSIPSI
000 qF ENG TEMP000 qF ENG TEMP
000 qF TRAN TEMP000 qF TRAN TEMP
00 OIL PRES00 OIL PRES
000 qF OIL TEMP000 qF OIL TEMP
00.00 MPG AVG00.00 MPG AVG
VIEWVIEW
SCREENSCREEN
RESETRESET
TripTekTripTek
NW: Compass Heading (optional)NW: Compass Heading (optional)
GEAR: Transmission gears selected and attained.GEAR: Transmission gears selected and attained.
TURBO PSI: Turbocharger boost pressure.TURBO PSI: Turbocharger boost pressure.
ENG TEMP: Engine coolant temperature.ENG TEMP: Engine coolant temperature.
TRAN TEMP: Transmission oil temperature.TRAN TEMP: Transmission oil temperature.
OIL PRES: Engine Oil Pressure.OIL PRES: Engine Oil Pressure.
OIL TEMP: Engine oil temperature.OIL TEMP: Engine oil temperature.
MPG AVERAGE: Average miles per gallon for life of coach.MPG AVERAGE: Average miles per gallon for life of coach.
Press SCREENPress SCREEN to turn rear vision image on or off.
Press VIEW to move to the “BLANK” screen.
Page 6

Maintenance, Setup and Adjustment Screens
VIEW
SCREEN
RESET
TripTek
Press the up___ and down ___ keys simultaneously to get the second level
screens (“SCREEN SELECTION”).
Press VIEW key to change selection. Select “MAINTENANCE SCREEN”.
Press RESET key to display screen.
Maintenance Screen
The MAINTENANCE screen displays when to change oil and filters.
MAINTENANCE
00000 mi ENGINE OIL
00000 mi FUEL FLTR
0
0000 mi TRANS OIL
GENERATOR
000 hr GEN OIL
000 hr FUEL FLTR
VIEW
SCREEN
RESET
TripTek
ENGINE OIL: Miles since last oil change.
FUEL FLTR: Miles since last fuel filter change.
TRANS OIL: Miles since last transmission oil change.
GEN OIL: Hours since last generator oil change.
FUEL FLTR: Hours since last generator fuel filter change.
Press the up ___ or down ___ key to select the line item desired.
Press RESET and follow screen instructions to zero out line item after oil or
filter change.
Press VIEW key to return to “TODAY” screen.
Press the up ___ and down ___ keys simultaneously to return to the “SCREEN
SELECTION” screen.
Press VIEW key to change selection. Select appropriate screen.
Press RESET key to display screen.
Compass Zone Adjustment Screen
The SET COMPASS STATE screen is to maintain compass accuracy by state.
COMPASS ADJ.
ARIZONA
ARKANSAS
CALIFORNIA
COLORADO
CONNECTICUT
DELAWARE
FLORIDA
STATES: Alphabetical listing of all states to easily set zones to
maximize compass accuracy.
:Pointer to state you are presently in.
Page 7

VIEW
SCREEN
RESET
TripTek
Using the up ___ or down ___ key will let you scroll through the list of states to
pick that state you are presently in.
Pressing RESET will change the zone to that state chosen and return to
“TODAY” screen.
Press the up ___ and down ___ keys simultaneously to return to the “SCREEN
SELECTION” screen.
Press VIEW key to change selection. Set appropriate screen.
Press RESET key to display screen.
Customer Service Screen
The CUSTOMER SERVICE screen is to give operator easy access to phone numbers and web page of the coach
manufacturer
COACH
CUSTOMER SERVICE
1-800-234-5678
CHECK THE WEB
www.coachmfg.com
VIEW
SCREEN
RESET
TripTek
1-800-: Phone number of customer service department for
coach manufacturer.
www. : Web page of coach manufacturer.
Press any key to return to the “TODAY” screen.
Press the up ___ and down ___ key simultaneously to return to the “SCREEN
SELECTION” screen.
Press VIEW key to select appropriate screen.
Press RESET key to display screen.
Maintenance Setup Screen
The MAINTENANCE SETUP screen is to preset the service duration of miles or hours.
MAINT. SETUP
USE VIEW TO
CHANGE SELECTION
ARROWS TO SET
ENGINE OIL
6000 mi
RESET TO EXIT
VIEW
SCREEN
RESET
TripTek
ENGINE OIL: Selected maintenance item to set. Ref. ENGINE
OIL, ENG. FUEL FILTER, TRANSMISSION
OIL, GENERATOR OIL and FUEL FILTER
6000 mi: Resetable miles or hours for maintenance
replacement sequence.
Press VIEW key to change maintenance line item.
Press the up ___ or down ___ key to set desired miles (eng or trans) or hours
(genset) for maintenance replacement sequence.
Press RESET to exit back to “SCREEN SELECTION” screen.
Press VIEW to select “TRIPTEK COMPUTER”.
Press RESET key to display screen.
Page 8

Compass Calibration
The compass must be calibrated after its initial installation or at anytime it is replaced or relocated. Compass
calibration can be accomplished at two levels of accuracy. Standard Calibration – more than adequate for
normal use. This is where the coach is driven in a full circle. 4 Point Calibration – where greater accuracy is
sought or when the sensor has been put in an environment that affects compass accuracy. The procedure
requires the coach to be pointed in each of the four true compass headings, i.e. North, East, South and West..
normal use. This is where the coach is driven in a full circle. 4 Point Calibration – where greater accuracy is
sought or when the sensor has been put in an environment that affects compass accuracy. The procedure
requires the coach to be pointed in each of the four true compass headings, i.e. North, East, South and West..
VIEWVIEW
SCREENSCREEN
RESETRESET
TripTekTripTek
COMPASS CALIB.COMPASS CALIB.
USE RESET TOUSE RESET TO
BEGIN CALIBRATIONBEGIN CALIBRATION
THIS INVOLVESTHIS INVOLVES
DRIVING IN ADRIVING IN A
FULL CIRCLEFULL CIRCLE
VIEW TO SKIPVIEW TO SKIP
CALIBRATIONCALIBRATION
COMPASS CALIB.COMPASS CALIB.
PLEASE DRIVEPLEASE DRIVE
THE COACH INTHE COACH IN
A FULL IRCLEA FULL IRCLEC C
PRESS VIEWPRESS VIEW
TO FITO FINISH NISH
PRESS RESET FORPRESS RESET FOR
4-POINT CALIB.4-POINT CALIB.
4-POINT CALIB.4-POINT CALIB.
PLEASE POINTPLEASE POINT
THE COACHTHE COACH
DUE N RTHDUE N RTHO O
PRESS RESETPRESS RESET
WHEN FINISHEDWHEN FINISHED
COMPASS ADJCOMPASS ADJ
ARIZONAARIZONA
ARKANSASARKANSAS
CALIFORNIACALIFORNIA
COLORADOCOLORADO
CONNECTICUTCONNECTICUT
DELAWAREDELAWARE
Press the up ___ and down ___ keys simultaneously to return to the “SCREEN
SELECTION” screen.
Press the up ___ and down ___ keys simultaneously to return to the “SCREEN
SELECTION” screen.
Press VIEWPress VIEW key to select “CALIBRATE COMPASS”.
Press RESET key to display screen.
Press RESET key to begin compass calibration.
Press VIEW key to skip calibration and return to the “TODAY” screens.
Drive the coach in a full circle.
Press VIEW key after successful calibration and proceed to “COMPASS
ADJ.” Ref. below.
Press RESET key to proceed with 4-point calibration if desired.
Follow screen and point coach true North and then press RESET.
Screen will then instruct you to point coach true East, press RESET again.
Continue process through South and West pressing RESET after each step.
Using the up ___ or down ___ key will let you scroll through the list of states to
pick that state you are in.
Pressing RESET will change the zone to that state chosen and return you to the
“TODAY” screens. Calibration is complete.
Page 9

TripTek Product Warranty
Coretronics, Inc. (the Company) warrants the Triptek computer to be free of defects in
material and workmanship under normal use and service maintenance for a period of 12
months. In the event the Computer shall prove to be defective in material or workmanship
during said 12-month warranty period, Sawtooth will, at its option, repair or replace the
Computer, at no charge to Customer except as set forth below. All replaced parts and
equipment shall become the property of Coretronics.
This limited warranty does not apply to any damage to the Computer resulting from
accident, physical or electrical misuse or abuse, improper installation, alteration, any use
contrary to its intended function, unauthorized service (i.e. service by anyone other than the
Company or its authorized service personnel), fire, flood, lighting, or other acts of God.
This warranty limits the Company’s liability to the repair or replacement of the product.
The Company shall not be responsible for removal and/or reinstallation charges, loss or
damage in transit and shipping and mailing costs to the warranty service location.
The Company reserves the right to make changes or improvements in its products without
incurring any obligation to similarly alter products previously purchased.

SAWTOOTH EMBEDDED SYSTEMS
[phone] BOISE, IDAHO

Reduce Accident Risk
Increase Fuel Economy
Avoid Inconvenience
Extend Tire Life
Active Tire Pressure Monitoring
There are few situations more stressful, dangerous, and inconvenient than
having a tire blowout when traveling at highway speed. The fact is that most
blowouts can be traced back to damage suffered from prolonged driving on
under-inflated tires. It’s frightening, but studies show that almost half of all RV
tires are under-inflated. The TripTek Tire system is a tire pressure monitoring
system specifically designed to meet the unique needs of RV’s. The system
constantly monitors your tires and warns you of a tire problem before it becomes
dangerous.
Sensors mounted securely to the rim using
stainless steel straps measure internal tire
pressure and temperature. This information is
wirelessly transmitted to a receiver mounted in
the vehicle.
DANGER!
LOW TIRE PRESSURE

THREE LEVELS OF ALERT
The tire status screen displays all
pertinent data including pressure,
temperature and pressure deviation for
the selected tire. When an alert occurs,
the tire status screen will be displayed to
indicate the affected tire, its status and a
description of the alert.
Pressure Deviation Alert
The Pressure Deviation Alert is initiated when the measured tire pressure
deviates from the required pressure by more than the preset level. This is the
first warning of an under-inflated tire. When the pressure falls below the first
programmed level, TripTek alerts the driver with a warning light, audible alarm
and displayed information.
Critical Low Pressure Alert
The Critical Low Pressure Alert warns the driver when the tire pressure falls
below the second programmed level. This audible and visual warning alerts the
driver to take immediate precautions.
High Temperature Alert
The High Temperature Alert warns the driver when the tire temperature exceeds
a programmed level. This can indicate a serious tire problem or possibly a brake
or bearing problem that requires immediate attention.
And More …
•Displays all tire status on one screen.
•Tracks all warnings (tire log) to assist in managing problems.
•Temperature compensation profile is auto set by system.
•Can check tire status while parked.
•Stores in memory your primary vehicle and up to three towed vehicles.
•Monitors up to 28 wheels simultaneously and 56 total wheel positions.
Coretronics, Inc.
1251 E. Iron Eagle Drive, Suite 100, Eagle, Id 83616
2208-938-6331 www.TripTek.net

Password
From the ‘CONFIG TIRE’ menu press in sequence:
RESET, DOWN, UP, DOWN, RESET, L+R VIEW (together)
Any mistake will reset the sequence. When the sequence has been entered correctly a new line
item ‘Check Signal Strength’ will appear in the menu. This item will be enabled until TripTek is
powered down (typically 90 min after the shutdown of the vehicle).
Screen Data Items
A. Strength of the last transmission. This data parameter is not saved at power down or after
changing tow vehicle. While driving this number will change from time to time reflecting the
most recent data from the tire. Tires with good reception will occasionally get a poor signal
strength transmission depending on the wheel position of the vehicle during the transmission.
B. Time since last transmission. This is in the minutes.seconds format. This timer is not running
when the vehicle is traveling less than 10mph. A new transmission zeros out this timer. The
time is accurate to the nearest 7.5 second boundary.
C. Average signal strength. This parameter is the average of every signal strength value for a
given tire received since the last reset.
D. Total of all received signal strengths.
E. Number of transmissions received since the last reset. (note that D/E = C)
F. Time the vehicle has traveled at a speed of more than 10 mph since the last reset. This
parameter is in the hours:minutes format and gives an indication of how long the vehicle has
been running.
G. Stop indicator. When ‘stp’ appears the coach is considered ‘stopped’ and timers B and F are
held stationary.
H. Overflow indicator. When ‘ovr’ appears, TripTek has accumulated as much data as it can.
Future transmissions will not affect the numbers C, D, or E.
I. Dotted tire: A dotted tire indicates no new signal strength data is available for this tire.
J. Bar graph tire: Tires for which data exists have a small bar graph contained within them. This
represents the currently selected parameter (A,B,C,D or E) as explained in the next section.
K. Tire with Plus: A tire with a plus indicates that the receiver is in the middle of receiving a
transmission from the indicated tire.

Usage
Pressing UP/DOWN will select a tire within the TIRE RECEPTION screen. The currently
selected tire is the one that is blinking.
Pressing left VIEW will exit the TIRE RECEPTION screen.
Pressing RESET will reset the signal strength data for the vehicle the cursor is currently on.
(Data values B, C, D, E, and F).
Pressing SCREEN will change the currently selected parameter. The current parameter is the
data item, which is blinking (item A, B, C, D or E). When a parameter is selected (say parameter
C, the average signal strength) then each of the bar graphs within the tires of the vehicle will
represent the relative strength of the selected parameter. There are 7 possible graduations (from 0
to 6 bars) within the miniature graphs. They are mapped as follows:
Tire Bar Graph Key
A. Strength (last transmission): strength of 0-1 = 0 bars, strength of 2 = 1 bar, …. , strength of 7
or greater = 6 bars.
B. Last transmission timestamp: 0-8 min. ago = 6 bars, 8-12 min. ago = 5 bars, 12-16 min. ago =
4 bars, 16-20 min. ago = 3 bars, 20-24 min. ago = 2 bars, 24-28 min. ago = 1 bar, 28 min or
greater 0 bars.
C. Strength (average): strength of 0-1.9 average = 0 bars, strength of 2.0-2.9 average = 1 bar,
…., strength of 7.0 average or greater 6 bars.
D. Total of all received signal strengths: The bar graph represents a percentage of the maximum
total signal strength seen on any tire of the given vehicle. Vehicles are considered separately.
For instance if the bar graph on one tire is half filled this means that the tire has a lower
signal quality than one that has a filled tire from the same vehicle.
E. Number of transmissions: The bar graph represents a percentage of the maximum number of
transmissions seen on any tire of the vehicle. Vehicles are considered separately. For instance
if the bar graph on one tire is half filled this means that the tire has received half the number
of transmissions as the tire with a filled tire from the same vehicle.