Magnum Dynalab ST-2 User Manual

ST-2 Vertical, Omni-Directional, ½ Wave Antenna

INSTALLATION INSTRUCTIONS

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Installation Instructions

Congratulations! You have just purchased one of the finest FM broadcast band receiving
antennas on the market today.

The ST-2 is a sturdy, high quality FM antenna. It has been built to maintain its excellent
receiving characteristics while withstanding the rigors of nature in just about any geographical
location where FM signals can be received.

Assembling the ST-2

While your unit might arrive fully assembled, you should go through the following procedure to
ensure that your ST-2 is ready for permanent installation.

First of all, make certain that the whip is held fast within the loading coil. You can check this by
holding onto the loading coil with one hand and tugging firmly on the whip with the other. If the
ST-2 arrived disassembled, or if the whip was found to be loose during the above test, carry out
the following procedure. Using a 3/8” open end wrench, loosen the gold locking nut at the top of
the coil assembly. Insert the thickest end of the whip (opposite the static ball end) in the top of
the nut. Push it down until it bottoms (about 1”). Hold on firmly to the coil with one hand and
slowly tighten the nut until you feel some resistance. Then, tighten ½ turn, no more.

If the nut continues to turn, with no indication that the whip is being tightened, stop this
procedure and, referring to Fig. 1, loosen the nut right off. You will note in the explored view
that the whip passes through a small ferrule. Tightening the nut down on the ferrule which is
confined within the coil barrel causes the ferrule to compress on the whip base thereby holding it
firmly. In fact, about 1/8” must protrude through the bottom end of the ferrule for the
compression joint to be effective.

NOTE: Sometimes a slight burr on the hole in the ferrule will stop the whip’s passage all the way
through. If this is the case, sand off the burr. When you are satisfied the whip will pass freely
through the ferrule, reassemble the antenna as shown in Fir. 1. Follow the previous instructions
on ‘tightening’.

Referring to Fig. 1, reinstall the ‘L’ bracket supplied as shown by turning the large locking nut
off the connector shell. At the same time the connector shell may also come loose. To remedy
that, hold the shell portion in place as you remove the nut. Retighten the shell finger tight.
Reinstall the bracket so the longest portion now extends downward, over the shell. Using an
adjustable wrench, tighten the collar nut about ¼ turn beyond finger tight.

Pre-Installation Checkout

Connect the lead-in to the FM ANTENNA terminal on the back panel of your tuner or receiver.
Place the antenna by a window, but away from any metal window frames. One way might be to
attach a piece of string (not wire) to the top of the whip and the string to the window’s drapery
track. BE SURE to keep the whip at least 6 inches away from contact with any metal surfaces.