Model: MC-1-DE
Doc Ref. No:-m05dom102
Issue No:-00
User’s Manual
Page 20 of 76
Unit is equipped with internal fuse. If it is blown Up or blowing again
on its replacement, it is highly probable that either power source is
incorrect or power source connection is improper.
Internal fuse should be only replaced with same fuse type and
same fuse rating as supplied from manufacturer factory. Replace-
ment of Fuse should be done in unit Power OFF condition only.
6.1 GPS Antenna and Cable Information
GPS TIME SYNC UNIT MC-1-DE comes complete with the necessary hardware to be able to receive
GPS signals: 50-feet of RG-6 cable and a GPS antenna. The antenna cable is connected between
the female N connector on the antenna and the female BNC connector at the Front panel of the Unit.
This section should help you with installing the GPS antenna and antenna cable(s) and connecting
them to the model GPS TIME SYNC UNIT MC-1-DE. It should also be a source of information if you
should need to trouble shoot the antenna cable system. These Unit achieve their accuracy. By com-
paring and adjusting the internal clock signal to the incoming GPS signal.
6.1.1 Terminal connection for Wall/Rack/Table Top Mount Enclosure
Refer steps for installation of GPS antenna and antenna cable as described below.
Selecting a GPS Antenna Site Outdoors
Select a site or antenna mounting position that...
• check the highest point available.
• Offers a full 360° view horizontally, to within 10° vertically of the horizon
• Is higher than neighboring buildings/obstructions
• Is protected from strong radio frequency (RF) and microwave transmissions
• Is set away from RF-reflective surfaces that cause multipath interference
• Is set 3 ft. (1 m) away from other GPS antennas
Avoid...
• Mounting the antenna between tall buildings or next to walls and equipment
• Cable type and cable length which runs from the antenna to the receiver that exceed the
Specified length.
• Patching multiple cables together to make a single cable run
• Running the cable through bulkheads and alongside high-energy cables
• Crimping or damaging the cable
Blocked signals and multipath cancellation may significantly increase GPS signals acquisition time.
Multipath Cancellation is caused by reflected signals that reach the antenna out of phase with the di-
rect signal due to vertical reflective objects positioned to the side and above the antenna. To solve
these problems, user must mount the antenna at least 1 meter away from and above the reflecting
surface.
To properly receive GPS signals, the GPS antenna needs to be mounted clear of buildings as sur-
rounding elements or heighted obstacles may block the GPS signals transmission done with the sa-
tellites. For complete antenna signals coverage, the antenna needs to have a clear view of the sky
