USER’S GUIDE SF-2110, User Manual

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SF-2110 User Guide – Rev. A
Table 8: Acceptable Cable Lengths
Cable Atten. Cable Loss Atten. Cable Loss
in dB
Type (dB) per
100 Ft.
Length
in Feet in dB (dB)
per
100 m
Length
in
Meters
RG-58C 19.605 36.00 7.06 64.32 11.00 7.08
RG-142 16.494 43.00 7.09 54.12 13.00 7.04
RG-213 9.564 74.00 7.08 31.38 22.50 7.06
RG- 17.224 41.00 7.06 56.51 12.50 7.06 223
LMR60 3.407 207.00 7.05 11.18 63.00 7.04 0
LMR400 5.262 133.00 7.00 17.26 41.00 7.08
LMR240 70.00 7.09 33.23 21.00 6.98 10.127
LMR195 14.902 47.00 7.00 48.89 14.00 6.85
In-line amplifiers suitable for all GPS frequencies may
be used to increase the length of the antenna cable,
u but care sho ld be exercised that tracking
performance is not degraded due to multiple
le
oisture and dust to the in-line amplifier.
ter devices must pass DC
he receiver to the antenna, or source the
voltage and current to the antenna (see
ions ). In-line amplifiers may also
degrade signal
alled, or the cable
s NavCom specifications.
ot to kink, stretch, distort, or
le. Do not place
these instances, attempt to cross cables
at 90º angles in an effort to reduce cross-
coupling of RF signals.
connections, noise from the amplifier, and possib
ingress of m
In-line amplifier or split
power from t
appropriate
Antenna Specificat
over-saturate the receiver front-end if improperly
used.
‡
The antenna cable can
quality if incorrectly inst
loss exceed
Take care n
damage the antenna cab
the cable adjacent to cables carrying
electrical power or radio frequencies. In
* Consult Release Notes on the NavCom web site for availability.
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