Pendulum GPS-12, User Manual

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Antenna
Installation
The antenna (option 01), is intended for out-
door mounting on a wall or preferably on a
roof. The more free sky that is visible from the
antenna’s position, the better the satellite con-
tact. There is an antenna mounting kit (Option
01/50) available for this purpose.
The antenna cable is a 20 m (Option 02) or
50 m (Option 02/50), or 130 m (Option 02/130)
high quality RG213 cable that connects at one
end to the antenna and at the other end to the
rear panel of the frequency standard. For instal-
lation details and instructions on connecting
other antennas/cables than those supplied by
Pendulum, please consult the Appendix in this
manual.
Connecting to a PC
A PC can be connected to the USB port at the
rear of the instrument for firmware download
or communication with the optional SW pack-
age
GPS-12 Monitor . A suitable cable should
have one USB-A connector (for the PC) and
one USB-B connector -for the GPS-12X.
The procedure is described in the service man-
ual, as only trained personnel should do FW up-
grades. Erroneous handling of the instrument
before and during the download may damage
the memory contents and prohibit the comple-
tion of the loading process.
2-7 Antenna Installation
Preparation for Use