Ramsey Electronics VHF Low Noise Preamp Kit PR100 Assembly And Instruction Manual page 12

THE PR100
Hookup is simple if you are using coax cable such as RG-58 or better 50 ohm
cable. Just run a piece from the jack marked RCVR (J3) on the PR100 to
the .01µF capacitor just before the radio. Then a short piece is needed to go
from the capacitor to the radio. Finally, you need to connect the Preamp to the
antenna and you are ready for testing.
HOOKUP EXAMPLE
Turn on your receiver, you should be able to pick up a weak signal with little
difficulty. If you are not receiving anything yet, check your 12 volt DC supply. If
you are still having troubles, test for the twelve volts present on the preamp,
then check the orientation of the preamp. If both are correct, you may need to
check your preamp for proper assembly, or even possibly your cabling for
opens. Consult the assembly instructions for some help on these matters.
PR100 12