External antenna, Here – Cobra Digital 7750 PLT User Manual
Page 59
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10.2) External antenna option
There is an antenna jack on the back of the 7750 PLT, at the top. It is covered by a rubber plug.
The part number of the external antenna is
EXT GPS ANT
. To order an external antenna,
please call Customer Service at 773-889-3087.
The antenna is only 1.5” x 1.75” and it has a magnetic base.
The cable is 13 feet long.
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