Vectronics VC-300D - Manual (Page 5)

VC-300D Digital Bargraph Antenna Tuner Owner's Manual
5
INSTALLATION
Carefully unpack your VC-300D from the packing carton and inspect it for signs of
damage. If any damage is apparent, notify the transportation carrier or dealer
immediately. We recommend keeping the packing carton for moving, storage, or
reshipping the tuner.
Select a location for the VC-300D that allows the connectors to be free of any possible
contact during operation.
WARNING: SOME BALANCED OR END-FED ANTENNAS WILL PRODUCE
HIGH RF VOLTAGES AT THE BANANA CONNECTORS. RF
BURNS MAY RESULT IF TOUCHED DURING TRANSMISSION.
INSTALLATION PROCEDURES
1. Connect a coax cable from your transmitter or receiver to the TRANSMITTER
connector on the rear panel. Keep the cable as short as possible. If you use a linear
amplifier, connect your transmitter to the linear amplifier output to the VC-300D. Do
not use more than 200 watts through the tuner.
2. Connect coax cable(s) from your antenna to COAX 1 or COAX 2 connectors on the
rear panel. These connectors are either direct from the transmitter or through the
tuned circuit depending on the setting of the OUTPUT SELECTOR switch.
3. If you are using a balanced feed antenna, connect a balanced line to the BALANCED
OUTPUT connectors and jumper banana jack (8) with lower jack (7) as shown by
dotted line.
4. If using a single wire antenna, connect it to jack (7) without installing jumper.
5. Connect any antenna that does not require the use of a tuner to the BYPASS (4)
connector using a coax cable. This lets you select this antenna from the OUTPUT
SELECTOR switch.
6. To avoid possible damage to the VC-300D, set TRANSMITTER, ANTENNA, and
RANGE switches as outlined in the next section before applying transmitter power.
7. Begin tuning with your transmitter set at a low power setting (10 to 20 W)
WARNING: DO NOT OPERATE THE VC-300D WITH THE COVER OFF! DO
NOT CHANGE THE INDUCTOR SWITCH WITH MORE THAN
20 WATTS OF APPLIED POWER!