main receiver. Observe on the receiver LCD a momentary reset to “888” on
the display, release the RESET button.
First make certain that the unit will pick up a nearby signal. Do this by
placing the remote transmitter in a vertical position. Place the main receiver
(large digital display) in a vertical position approximately 6 feet away from
the remote transmitter. There should be no obstructions between the units.
Make certain the main receiver is set to the correct channel. On the main
receiver simultaneously press the CHANNEL button and the MEM button.
This will force the main receiver to search for the signal. Again, make cer-
tain the main receiver is still set on the correct channel.
If the main receiver is now displaying the temperature from the remote
transmitter then the units are functioning correctly. These units will perform
within their limitations. All radio signals are inherently affected by interfer-
ence or blockage. Like all radio transmitters and receivers, performance
is best when there is little or no interference or blockage. Even the most
powerful megawatt radio station transmitter is occasionally blocked when
driving. Powerful cellular phones (which are simply radio transmitters/
receivers) still “drop” calls when interference or blockage occurs. On
occasion it is difficult or impossible to receive a cellular phone dial tone in
certain areas of a building.
Some of the causes of interference and blockage are metal, reflective
surfaces, motors, elevators, florescent lights with electrically noisy ballasts,
sparking environments such as welding, emergency vehicle radios, power
lines, portable/mobile radio transmitters and walkie-talkies.
On occasion, momentary interference with the remote transmitter may
cause an erroneous minimum or maximum reading to be captured by the
main unit.
If two or more remote units in the same area are set to the same chan-
nel then any or all main units will probably receive scrambled signals and
report erroneous readings.
If the units do not perform when placed further apart, then try the following.
1. Place the remote transmitter unit as high as possible.
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