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The UHF Basic Callbox works with our other UHF
radios and it provides long range, 2-way voice communication from the
fixed location of the Callbox to any of your other UHF intercom or
handheld units. It has a range of up to one mile or more with an
optional external antenna.
This model is recommended for indoor use and in
controlled environments with no public access. The UHF Basic Callbox
does have a weather-resistant housing so it can be used in covered
outdoor locations where direct impact from the weather is not prevalent.
If it is to be used outdoors it is imperative that
the entire antenna connection be sealed with seal tape to provide proper
operation and to prevent voiding the warranty. Seal tape can be
purchased at most Industrial Supply Stores, Hardware and Home Center
Stores, or Electronic Supply Stores.
However, the heavy duty
UHF Callbox XT Outdoor
Intercom is recommended when the Callbox will be used in areas of public
access and heavy weather conditions.
There is no need for extensive wiring, trenching, remodeling, or
installing dedicated phone lines with expensive monthly fees since the
UHF Basic Callbox is completely wireless.
For simple installation, the UHF Basic Callbox is designed to
operate on 6 D-cell batteries (alkaline or Ni-Cad rechargeable). An
optional external power supply is also available.
The UHF Basic Callbox has two modes of power consumption. In
Automatic Turn-Off the unit turns itself off after a programmed amount of of
inactivity (up to 4 minutes). It can only be turned on again by pressing its Call button
on the Callbox. In this mode it cannot receive calls from other
intercom or handheld radio units. It can only make calls and then other
units can respond.
In Normal mode, the unit does not turn itself off and the UHF
Callbox can not only make calls, but receive them as well. This mode
consumes the largest amount of power and should only be considered if an
external source of power is available. If an external source of power is
used, the internal batteries can be installed as a back-up against loss
of power. This callbox can be mounted using four screws through its back or using
the optional MURS Callbox Basic Mounting Bracket in Related Products
and Accessories below.
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