La Crosse 308-1451 User manual

Model: 308-1451 www.lacrossetechnology.com/support 1
Wireless Forecast Station
Model: 308-1451 | Instruction Manual
The wireless forecast station features radio-controlled time, dual time alarms, sunrise/sunset, barometric
pressure in numbers, and pressure graph with 12-hour history, forecast icons, indoor/outdoor temperature and
humidity with high and low alarms. Five forecast Icons based on temperature & air pressure readings suggest
what kind of weather to expect. Four clothing index icon suggest what to wear. This forecast station will never
keep you guessing on current or future weather conditions.
Forecast Station
NOTE: This forecast station is sold with
one TX142TH sensor or one TX14TH
sensor. Either sensor may be used
interchangeably.
Get Started
Step 1:
Insert 3 NEW AA batteries (not included) into the weather station. Observe the correct polarity.
Step 2:
Insert 2 NEW AA batteries (not included) into the outdoor transmitter. Observe the correct polarity. The red LED
light will flash when transmitting.
Restart: if there is no outdoor temperature data after 3 minutes.
Remove batteries from the weather station & transmitter for 15 minutes.
Return to Step 1 above.
Forecast +
Advanced
Fisherman
icon
Calendar
Time +
2 Alarms
Sunrise/set +
Moon phase
Indoor
Temperature,
Humidity + Alerts
Outdoor
Temperature,
Humidity + Alerts
Absolute
Pressure +
History
12-hour Pressure
History Graph in
inHg or hPa
Model: 308-1451
Instruction Manual

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Table of Contents
Forecast Station 1
Get Started 1
Table of Contents 2
Features 3
Install Batteries in the Forecast Station 3
Install Batteries in the TX142TH Transmitter 3
Install Batteries in the TX14TH Transmitter 4
Function Buttons 4
Program Menu 4
WWVB Reception ON/OFF 4
Time Zone 4
DST Indicator ON/OFF 5
12/24-Hour Time Format 5
Fahrenheit/Celsius 5
Set Time 5
Set Calendar 5
City Selection: Sunrise/Sunset Times 6
Tide 6
Moon Phase 6
Comfort Statement 7
Alarms 7
Time Alarms 7
Set Time Alarm 1 7
Set Time Alarm 2 8
Snooze 8
Frost Alarm 8
Outdoor Temperature Alarms 8
Set Temperature Alarm 1 8
Set Temperature Alarms 2 and 3 8
Temperature Trend Indicators 9
Pressure Readings 9
Absolute Barometric Pressure Number 9
Pressure Unit of Measurement 9
Pressure History 9
Pressure History Graph 9
Weather Forecast Icons 10
Tendency Indicators 10
Clothing Index 10
MIN/MAX Data 10
Channel Selection and Auto-scroll 11
Use Multiple Transmitters 11
WWVB Radio-controlled Time 11
WWVB Reception Icon 12
WWVB Manual Signal Search 12
Care and Maintenance 12
Low Battery Icon 13
Position the Outdoor Transmitter 13
Position the Forecast Station 13
Specifications 13
Warranty Information 14
FCC Statement 15
Appendix A City Codes 16

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Features
Atomic Clock: 7 Time Zones（AST, EST, CST, MST, PST, AKST, HAST
Calendar (Month/date, 2000-2099, Default Year 2010)
Time (hour/minute)
Indoor Temperature/Humidity
Wireless Outdoor Temperature/Humidity
°C/°F selectable
Alarm and snooze Function
Weather Forecast: Sunny, Slightly Cloudy, Cloudy, Rain or Snowy
History chart for Pressure
Low Battery indicator: Main unit and Transmitter
Temperature and humidity trends
High/Low Daily records
Comfort indicator
250 major US cities sunrise/sunset
Clothing index
•Low battery icon for forecast station and Transmitter
•Sits on desktop or tabletop
Install Batteries in the Forecast Station
Batteries:
1. Remove battery cover. Slide tab to the right and pull out to remove battery cover.
2. Install three new AA batteries according to the polarity markings.
Do Not Mix Old and New Batteries
Do Not Mix Alkaline, Lithium, Standard or Rechargeable Batteries
Install Batteries in the TX142TH Transmitter
NOTE: This weather station will come with one TX142TH transmitter OR one TX14TH
transmitter. Both transmitters work interchangeably.
1. Slide the battery cover down, then lift off the front of the TX142TH transmitter.
Note: Be careful not to break the tabs on the battery cover.
2. Confirm the channel selector switch is on channel 1.
3. Insert two new AA batteries into the transmitter.
Observe the correct polarity (see marking inside battery compartment).
4. Keep transmitter 5-10 ft. from the forecast station during setup.
5. After 15 minutes, if the outdoor temperature shows on the forecast station, move the
outdoor transmitter outside to a shaded location within range of the forecast station.

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Install Batteries in the TX14TH Transmitter
1. Slide the battery cover down, then lift off the back of the TX14TH transmitter.
Note: Be careful not to break the tabs on the battery cover.
2. Confirm the channel selector switch is on channel 1.
3. Insert two new AA batteries into the transmitter.
4. Observe the correct polarity (see marking inside battery
compartment).
5. Keep transmitter 5-10 ft. from the forecast station during setup.
6. After 15 minutes, if the outdoor temperature shows on the forecast station,
move the outdoor transmitter outside to a shaded location within range of the forecast
station.
Function Buttons (on back of weather station)
Program Menu (sets time, calendar, 12/24 hour time, °F/°C, and WWVB reception)
The SET button will moves through the items in the program menu. The + or - button will change these values.
WWVB reception ON or OFF
Time Zone (Seven Time Zones)
Daylight Saving Indicator
12/24 hour time format
Fahrenheit/Celsius selection
Manual time set (Hour, Minutes, Seconds)
Calendar set (Year, Month, Date)
WWVB Time Reception
The WWVB time reception defaults to ON. To turn the WWVB reception OFF:
1. Hold the SET button for 5 seconds.
2. WWVB and ON will flash in the time display.
3. Press and release the + or - button to turn this OFF.
4. Confirm with the SET button and move to the Time Zone.
Time Zone
This station offers seven time zones listed in letter format (default is EST):
1. EST will flash next to the date.
2. Press and release the + or - button to select a different Time Zone.
3. Confirm with the SET button and move to Daylight Saving Indicator.
WWVB
On
TIME ZONE
EST

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DST
On
DST Indicator
DST will default to the ON position as most of the country observes the DST change. The DST indicator should
stay on all year so the forecast station knows when to switch into or out of daylight saving time. If you live in an
area does not observe the DST change, switch this to the OFF position.
1. DST and ON will flash in the time display.
2. Press and release the + or - button to turn DST to OFF.
3. Confirm with the SET button and move to 12/24 hour time format.
12/24 Hour Time Format
The time may be displayed in 12-hour or 24-hour format. Default is 12-hour time.
Note: When in 12-hour format AM or PM will show in front of the hour.
1. 12Hrwill flash in the time display.
2. Press and release the + or - button to select 24-hour time.
3. Confirm with the SET button and move to Fahrenheit/Celsius.
Fahrenheit/Celsius
Select the temperature to display in Fahrenheit or Celsius. Default is Fahrenheit.
1. °F will flash in the time display.
2. Press and release the + or - button to select Celsius.
3. Confirm with the SET button and move to Set Time.
Set Time
To set the time manually:
1. The hour digit will flash.
2. Press and release the + or - button to select the hour.
3. Press and release the SET button to move to the minutes.
4. The minutes digit will flash.
5. Press and release the + or - button to set the minutes.
6. Press and release the SET button to move to the seconds.
7. The seconds digit will flash.
8. Press and release the + or - button to reset the seconds to zero.
9. Confirm with the SET button and move to Set Calendar.
Set Calendar
To set the calendar:
1. The year will flash.
2. Press and release the + or - button to set the year (between year 2010-2039).
3. Press the SET button again to confirm and to enter the month
setting.
4. The month will flash.
5. Press and release the + or - button to set the month.
6. Press the SET button again to confirm and enter the date setting.
7. The date will flash.
8. Press and release the + or - button to set the date.
9. Confirm all calendar settings with the SET button to confirm and exit the program menu.
Note: If no buttons are pressed for 20 seconds, set mode will time out and return to live display mode, reflecting
whatever adjustments were made before it timed out.
Note: Press the + or - button once to adjust by 1 unit or hold for fast scroll adjustment.
12Hr
°F

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USA
ANC
City Selection: Sunrise/sunset Times
Note: Preset city abbreviations are at the end of this manual (Appendix A). Choose the city closest to you in a
north/south direction. This will provide the most accurate sunrise/sunset times.
To select a city location: Select your country, state, and then city location.
1. Hold the CITY button for 5 seconds.
2. USA will flash next to the sunrise/sunset time.
3. Press and release the + or - button to select USA, CAN or MEX as your country.
4. Press the CITY button to confirm the country and select a state.
Note: When either Canada or Mexico is chosen, you will move directly to city selection.
5. The state will flash. Press and release the + or - button to select a state.
6. Press the CITY button to confirm the state and select a city.
7. The city location will flash.
8. Press and release the + or - button to select a city from the list at the end of this manual.
9. Press the CITY button to confirm and exit.
After a short calculation time, the forecast station shows the times for sunrise and sunset,
moon phase and lunar tide.
Note: When DST is in affect the forecast station will need to receive the WWVB time signal to make the
adjustment for DST. The WWVB signal includes an embedded bit to tell the station to adjust for DST. Until that
signal is received the first time, the sunrise/sunset times will be one hour off.
Tide
The tides reflected on this station are based on the ebb and neap tides of the lunar month. Not daily high and
low tides. When the forecast station states high tide, the tides will be higher than usual, etc.
When the sun, moon and earth are lined up at new and full phases of the moon, tides will be higher.
When the moon is at right angles to the sun and Earth at the first and last quarter, the tides are weaker.
Full & new moon = spring tide (TIDE HI)
Quarter = neap tide (TIDE LO)
Other = mean water level (TIDE MID)
Moon Phase
The LCD Moon phase is divided by 6 sections, showing a total of 12 phases of the moon.
Note: With the moon shown against a light colored background, the phases will show opposite to a paper
calendar. The segments that are highlighted portray the part of the moon that is lit. For instance, the moon will
be blank during a new moon and dark during a full moon.
New Moon occurs when the moon is between the earth and sun so the illuminated portion of the moon is on
the back side facing the sun and we cannot see it. After a new moon, the illuminated (visible) portion will
increase or wax until the full moon occurs.
AK

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Full Moon occurs when the earth, moon and sun are in approximate alignment, with the moon and the sun
on opposite sides of the earth. The illuminated portion of the moon faces the earth, giving us complete
visibility of one side of the entire moon. After a full moon, the illuminated portion will decrease or wane until
the new moon occurs.
First Quarter and Last Quarter moons occur when the moon is at a 90 degree angle to the earth and sun.
So we see half of the moon illuminated and half is in shadow.
Waxing means growing or expanding illumination and happens after a new moon.
Waning means decreasing illumination and occurs after a full moon.
Crescent refers to the moon being less than half illuminated. Crescents can be waning or waxing.
Gibbous describes a moon phase when more than half is illuminated. Gibbous can be waxing or waning.
Comfort Statement
The comfort statement is based on the indoor humidity.
WET: Humidity is above 64%
COMFORTABLE: Humidity is between 43% and 64%
DRY: Humidity is below 42%
Alarms
There are 9 different alarms that may be individually set on this forecast station:
Time Alarm #1
Time Alarm #2
Frost Alarm
High Temperature Alarm CH #1
Low Temperature Alarm CH #1
Time Alarms
This forecast station has two individual time alarms:
Press and release the ALARM button to enter Alarm mode. Alarm 1 (A1) will show after the alarm time.
Press and release the ALARM button again and Alarm 2 (A2) will show after the alarm time.
With additional TX142TH or TX14TH transmitters:
High Temperature Alarm CH #2
Low Temperature Alarm CH #2
High Temperature Alarm CH #3
Low Temperature Alarm CH #3

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Set Time Alarm 1
Press and release the ALARM button once to enter Alarm 1 mode. The Alarm Time and A1 will show.
1. HOUR: Hold the ALARM button for 3 seconds. The Hour will flash. Use the + or - button to set the Hour. Be
sure to set the Hour correctly for AM or PM. Press and release the ALARM button once.
2. MINUTES: The Minutes will flash. Use the + or - button to set the Minutes. Press and release the ALARM
button once.
3. ACTIVATE: Press and release the ALARM button to enter the correct Alarm mode. Press and release the +
button and the alarm icon will appear (above the time, alarm 1, below the time, alarm 2). The number in
the bell icon indicates which alarm is active.
4. DEACTIVATE: Press and release the ALARM button to enter the correct Alarm mode. Press and release
the +button and the alarm icon(s) will disappear indicating alarm 1 and/or alarm 2 is off.
Set Time Alarm 2
Press and release the ALARM button twice to enter Alarm 2 mode. The Alarm Time and A2 will show. Follow
steps 1-4 above to program alarm 2.
Snooze
Press the SNOOZE/LIGHT button on the top of the forecast station once to activate the snooze feature for 10
minutes when either alarm sounds. The alarm icon and the snooze icon Zz will flash when the snooze is
active. Press any button to deactivate the snooze feature.
Frost Alarm
The Frost Alarm when active will sound when the outdoor temperature drops to 34°F (1.1 °C).
1. ACTIVATE: Press and release the TEMP ALERT button to activate the Frost Alarm on all
channels (when multiple transmitters in use). The Frost Alarm icon will appear in the outdoor
temperature area when active.
2. DEACTIVATE: Press and release the TEMP ALERT button until the Frost Alarm icon no longer shows.
Outdoor Temperature Alarms
A high and low outdoor temperature alarm may be set on the forecast station.
Note: When multiple transmitters are connected on different channels, a high and/or low temperature alarms
may be set for each channel.
Set Temperature Alarm Channel 1
1. Press and release the CH button to select channel 1 (when multiple transmitters in use).
2. Hold the TEMP ALERT button until the High Temp Alert icon appears and the temperature
will flash. Use the + or - button to select your High Temp alarm value. Press and release the
SET button to move to the Low Temp alarm.
3. The Low Temp Alert icon will appear and the temperature will flash. Use the + or - button to
select your Low Temp alarm value. Press and release the SET button to confirm and exit to
current temperature.
4. The Temp Alert icon will show in the outdoor temperature area when a temperature alarm is active.
When the temperature alarm sounds, the Temp Alert icon and the temperature value will flash. Press any
button to silence the alarm temporarily.
Set Temperature Alarm Channel 2 & 3
Use the CH button to select the channel. Follow steps 2-4 above to set temperature alarms on other channels.
Frost
Alert
icon

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DEACTIVATE TEMPERATURE ALARM: Press and release the TEMP ALERT button 3 times to deactivate all
temperature alarms. The alert icons will disappear.
Temperature Trend Indicators
The indoor and outdoor temperature trend indicators will update every 30 minutes or less. These trends
represent temperature changes over the past three hours.
Temperature rose more than 2°F /1°C in the past three hours
Temperature has not changed more than 2°F /1°C in the past three hours
Temperature fell more than 2°F /1°C in the past three hours
The temperature trend indicators are shown next to the indoor temperature and outdoor temperature
readings.
Pressure Readings
Absolute Barometric Pressure Number
Barometric pressure is read by the forecast station. The numeric pressure value adjusts automatically as the
forecast station reads changes in air pressure. Since this number is absolute pressure, it may not be the same
as a local reporting station that reads in relative pressure.
Note: The number cannot be calibrated.
Absolute Pressure is measured in a vacuum without the influences of terrain, weather, water, foliage and
elevation. The air pressure it would be consistent at every elevation and decrease as it went higher.
Relative Pressure is a combination of air pressure and altitude. Relative air pressure will make readings in
local areas relative to each other to allow for proper forecasting.
Pressure Unit of Measurement (InHg or hPa)
Hold the HISTORY button for 5 seconds to switch from InHg (inches or mercury) or hPa (Hectopascal) for the
numeric pressure display and the pressure graph.
Inches of Mercury is common for weather reports and aviation in the United States.
Hectopascal is equivalent to millibar and commonly used to measure atmospheric pressure outside the
United States.
Pressure History
Press and release the HISTORY button to view the past 12-hours of numeric pressure
history.
In the small box to the right of the numeric pressure a number from 0 to -12 will
appear.
0 is current pressure. -1 through -12 reflects the history in one-hour increments.
Note: The history graph and forecast icons will not change when you view pressure history.
Pressure History Graph
The bar chart indicates the air pressure history trend over the last 12 hours in 5 steps, 0h, -1h, -2h, -3h, -6h & -
12h.
The columns represent the change in ”InHg” or “hPa” readings at specific
times.
The “0” in the middle of this scale is equal to the current pressure and each bar
represents how high or low in InHg or hPa the past pressure was compared to the current pressure.

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Read the graph from left to right. If the bars are rising, it means that the weather is getting better due to the
increase of air pressure. If the bars go down, it means the air pressure has dropped and the weather is
expected to get worse from the present time (0h).
Note: The bar graph will scroll continually to prevent LCD burnout.
Weather Forecast Icons
These icons forecast the weather in the next 12-24 hours. The forecast icons displayed, predict the weather in
terms of getting better or worse and not necessarily sunny or rainy as each icon indicates.
SUNNY SLIGHTLY CLOUDY CLOUDY RAINY SNOW
Note: After set up, readings for weather forecasts should be disregarded for the next 48-60 hours. This will
allow sufficient time for the forecast station to collect air pressure data at a constant altitude and therefore result
in a more accurate forecast.
Weather Tendency Indicators
Working together with the weather forecast icons are the weather tendency indicators. When the indicator
points upwards, it means that the air-pressure is increasing and the weather is expected to improve, but
when indicator points downwards, the air-pressure is falling and the weather is expected to become worse.
An arrow to the right means no change.
Clothing Index
The Fisherman clothing change combinations are based on outdoor temperature from the transmitter on
channel 1 only. The Fisherman represents CURRENT TRENDS in temperature.