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36 TimeSource 3100
Engineering and Ordering
097-72020-01 Issue 9: November 2003
Antenna Cable Choices
The antenna assembly uses the same coaxial cable for power and antenna signals. The length
of cable is determined by circumstances of the installation and site.
Two cables are required: one to connect the antenna to the lightning suppressor, and another
to connect the lightning suppressor to the TimeSource 3100 Shelf.
Symmetricom offers RG-59/U plenum-rated coaxial cable (0.812 mm [20 AWG], 75 ohm
coaxial) with male TNC connectors attached, in the following lengths:
• 3 m cable (060-72010-01)
• 6 m cable (060-72010-02)
• 15 m cable (060-72010-05)
• 30 m cable (060-72010-10)
• 61 m cable (060-72010-20)
• 91 m cable (060-72010-30)
• 152 m cable (060-72010-50)
• 182 m cable (060-72010-60)
• 243 m cable (060-72010-80)
• 305 m cable (060-72010-99)
Optionally, one length of coaxial cable may be ordered, which must be cut and prepared
with end-connectors at the point where the suppressor is located. The following items, which
must be ordered separately, are available for this type of installation.
• TNC connector kit (093-72010-98) includes:
- TNC connectors for RG-59/U cables (8)
- - Rubber boots (8)
- TNC adapter connectors (2)
• TNC crimp tool (154-00023-01)
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