A Appendix A. Tips for Finding the
Best Antenna Location
The best mounting location may not be close to the
control panel. Many typical control panel locations,
such as basements or closets, are very poor locations
for cellular transmitters such as the 7845C. If the area
near the control panel does not provide three bars of
signal, then you will need to move the radio and test
other areas of the premise.
When you find a location that provides three bars,
continue to “fine tune,” testing for even better signal
strength in the immediate area.
General Guidelines
GO FOR HEIGHT
* The higher the better.
* Plan to install at eye level or higher on a wall.
* Go to upper stories whenever possible.
* Avoid basements.
AVOID OBSTACLES
* Always mount on exterior walls, near windows if possible.
* Keep away from large metal objects such as filing cabinets,
refrigerators, water heaters, furnaces, etc.
* Stay away from heavy concrete walls.
* Remember to consider metal roofs, siding, and wall studs as
possible problems.
AVOID INTERFERENCE
* Never mount the radio inside the control panel can.
* Keep away from other radio devices, including other wireless
security devices (ie, wireless sensors and panel receivers).
* Avoid common electronic devices such as
televisions, stereos, and computers.
REMEMBER THAT AN ACCESSORY ANTENNA IS AVAILABLE
* If the signal strength inside a location is too weak, but
reception is good outside, use a 7825-OC and cable to mount
the antenna outdoors.
* Just make sure to test for optimal signal strength at the out-
door location (at least three bars).
Appendix A. Tips for Finding the Best Antenna Location