La Crosse Technology 616-146A User Manual

Atomic Projection Alarm

Model: 616-146A | Instruction Manual

Introduction

The Atomic Projection Alarm features radio-controlled time, indoor temperature, and moon phase on a
simple, and easy to read display. Time and/or indoor temperature can be projected on a wall or ceiling.
Use the integrated USB charging port to charge your will charge your smart phone, camera or other
device when the Projection Alarm is plugged into a power outlet.

Atomic Projection Alarm

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TABLE OF CONTENTS:

Introduction 1

Atomic Projection Alarm 1

Features 3

Initial Setup 3

Power the Atomic Projection Alarm 3

A/C power adapter 3

Batteries 4

WWVB Radio-controlled Time 4

WWVB Reception Icon 4

Manual Signal Search 4

Function Buttons 5

Program Menu 5

WWVB ON/OFF 5

Time Zone 6

Daylight Saving Indicator 6

12 or 24 hour time format 6

Set Time 6

Set Calendar 6

Fahrenheit/Celsius 7

Alarm Set 7

Deactivate Alarm 7

Snooze 7

Temperature Trend Arrows 7

Projection 7

Batteries 7

A/C Power 7

Backlight Intensity 8

A/C Power 8

Batteries 8

USB Charge Port 8

Moon Phase 8

Position Projection Alarm Clock 9

Care and Maintenance 9

Specifications 9

Indoor Temperature 9

Power 9

Battery Life 9

Dimensions 10

Accuracy 10

Indoor Temperature 10

Warranty 10

FCC Disclaimer 11

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Battery

Compartment

5-Volt a/c adapter

Features

Projects time & indoor temp. on wall or ceiling
Projection rotates in 90 degree increments
Projection options: (1) Default: toggle between time and indoor temp.,

(2) time only, or (3) indoor temperature only

Time zones: Atlantic Time (AST), Eastern Time (EST), Central Time (CST), Mountain Time (MST),

Pacific Time (PST), Alaskan Time (AKT) & Hawaiian Time (HAT)

Light up display backlight with a press of a button using battery power OR continuous light with AC

adapter (ON /OFF option)
Backlight settings: High, Low and Off
Charge devices with USB charging port: Output 0.5A
Atomic time and date sets itself
12/24 hour time with minutes
Snooze alarm and alarm icon
Calendar: day, date
IN temperature (°F / °C) with trend arrow
Moon Phase
Low battery icon for clock
Sits on desktop or tabletop

5.0V AC adapter (included) for primary power and battery backup
Battery life is over 24 months when using the AC adapter

Initial Setup

1. Insert A/C adapter into the wall outlet then into the display or insert 2 AAA batteries (not included)
into the display (see Power the Atomic Projection Alarm). The Atomic Projection Alarm will light up
and display time and indoor temperature.

IMPORTANT: When operating on a/c power, the backlight, projection and USB charging port will turn off

while the Projection Alarm searches for the WWVB signal, to avoid interference. The backlight and
projection will return after the 2-10 minute search. Then the USB charging port will resume working.

Do Not Mix Old and New Batteries
Do Not Mix Alkaline, Standard, Lithium or Rechargeable Batteries

Power the Atomic Projection Alarm

The Projection Alarm can be powered by the 5-volt a/c adapter or by 2 AAA batteries.
A/C power adapter:

Insert enclosed 5-volt a/c power adapter into a wall outlet, then into the Atomic Projection Alarm.

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Batteries:

1. Remove battery cover: Slide tab to the up and pull out to remove battery cover.

2. Install two fresh AAA batteries according to the polarity markings.

Do Not Mix Old and New Batteries
Do Not Mix Alkaline, Lithium, Standard, or Rechargeable Batteries

If the Atomic Projection Alarm does not display indoor temperature after 60 seconds, remove adapter and
batteries, and wait for at least 60 seconds before repeating the setup process.

IMPORTANT: When operating on a/c power, the backlight, projection and USB charging port will turn off

while the Projection Alarm searches for the WWVB signal, to avoid interference. The backlight and
projection will return after the 2-10 minute search. Then the USB charging port will resume working.

WWVB Radio-controlled Time

The NIST radio station, WWVB, is located in Ft. Collins, Colorado and transmits the exact time signal
continuously throughout the United States at 60 kHz. The signal can be received up to 2,000 miles away
through the internal antenna in the Atomic Projection Alarm. However, due to the nature of the Earth’s
Ionosphere, reception is very limited during daylight hours. The Atomic Projection Alarm will search for a
signal every night when reception is best. The WWVB radio station derives its signal from the NIST
Atomic Clock in Boulder, Colorado. A team of atomic physicists continually measures every second of
every day to an accuracy of ten billionths of a second a day. These physicists have created an
international standard, measuring a second as 9,192,631,770 vibrations of a Cesium 133 atom in a
vacuum. This atomic clock regulates the WWVB transmitter.

WWVB Reception Icon
A Tower with full signal strength will appear on screen in front of the date when the

reception of atomic time is successful.

The tower icon will show solid when the display has received the WWVB signal.
No tower icon displayed. The display was unable to receive a signal at this time.
Reposition the display for better signal reception or try again at bedtime.
The display will start searching at UTC: 07:00 and if no reception on the first attempt they will try

again at 08:00, 09:00 and 10:00. Each attempt will be at least 2 minutes and the most will be 10
minutes.

If there is no signal or too much interference the receiver will only be on for 2 minutes.
If the signal is good it may catch a signal in ABOUT 2-3 minutes.
If the signal is marginal it will try to catch a signal for up to 10 minutes.

IMPORTANT: When operating on a/c power, the backlight, projection and USB charging port will turn off

while the Projection Alarm searches for the WWVB signal, to avoid interference. The backlight and
projection will return after the 2-10 minute search (which occurs during the late night or early morning
hours). Then the USB charging port will resume working.

Note: In case the Atomic Projection Alarm is not able to detect the WWVB-signal (disturbances,
transmitting distance, etc.); the time may be manually set.

Manual Signal Search:
In normal mode, hold the RCC button until the reception icon appears to force a search of the WWVB

signal. The WWVB icon will flash during the search. If this icon disappears after the 2-minute search,
the radio time signal is not available at the moment.

Recommended distance to any interfering sources like computer monitors or TV sets is a minimum of

6 feet (2 meters).

Within ferro-concrete rooms (basements, superstructures), the received signal is naturally weakened.

In extreme cases, please place the unit close to a window and/ or point its front or back towards the
Fort Collins, Colorado, transmitter.

During nighttime, the atmospheric disturbances are usually less severe and reception is possible in

most cases. A single daily reception is adequate to keep the accuracy deviation below 1 second.

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