MM-015371-001, Rev. C
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4.
Pick a value of N then use the following formula to calculate an antenna cable length that will result
in a cable length long enough for the installation:
(N x ½
in ¼
in inches) x 0.66 = required cable length in inches
Example
: Choose N = 7. Therefore, the cable length in inches calculates to be:
(7 x 6.86 3.43 inches) x 0.66 = 33.96 inches
5.
Verify the calculated cable length is long enough to route it from the base of the antenna, into the
radio’s weather-resistant case, to the TNC RF connector on the rear of the radio, leaving some cable
length for a service loop. If not, recalculate the length per the formula in the previous step, using a
greater value of N.
6.
Shorten the cable by cutting it to the calculated length.
7.1.3
Route Cable, Crimp-On TNC RF Connector and Connect It to the Radio
1.
Route the antenna coax cable from the base of the antenna to the radio’s weather-resistant case.
2.
Route the cable into the case by passing it through the hole in the bottom of the case.
3.
Outside the case, tie and stow the cable.
4.
Using an appropriate crimp tool, crimp the supplied TNC RF connector to the end of the antenna
cable. For crimping instructions, see Figure 7-1 or the instructions supplied with antenna.
Actual Size; Dimensions are in Inches
(VS-AN-025167-010 Rev. A)
Figure 7-1: Crimping Instructions for TNC RF Connector
5.
The antenna cable is connected to the radio’s TNC receptacle-type (female) RF connector per a
procedure presented later in this manual. The cable and its TNC connector must be protected from
