Alinco DX-801 Manual de instrucciones descargar pdf (Pagina 16)

MFJ-925 Super-Compact IntelliTuner Automatic Antenna Tuner Instruction Manual

• Transmitter: SO-239 connector for coax cable from transmitter or transceiver. There is a bias tee

connected to this connector so 12 volts DC can be sent down the coax to power the tuner for remote

operation. An optional bias tee DC power injector, the MFJ-4116 or MFJ-4117, is available from

MFJ Enterprises, Inc.

• Ground: Wing-nut terminal for RF ground wire connection.

• Antenna: SO-239 connector for coax cable from antenna.

Note: To use a WIRE on the Antenna connector, be sure to use the enclosed adaptor.

Installation

WARNING

● Never operate the tuner with its cover removed. Contact with the components inside the

tuner while transmitting will result in painful RF burns.

● Locate the tuner so that the rear terminals are not accessible during operation. A single

wire connection may have high voltage while transmitting.

● Disconnect the antenna from the tuner during lightning storms.

● Always tune with low power (2-20 watts). Apply maximum power only after tuning up.

● Never exceed tuner specifications.

1. Place the tuner in a convenient location at the operating position. When using a random wire antenna

the feed through insulators may have high RF voltages. These voltages can cause serious RF burns if

the terminals are touched when transmitting. Be sure to locate the tuner so these terminals cannot

accidentally be contacted during operation.

2. Install the tuner between the transmitter and the antenna. Use a 50-ohm coaxial cable (such as RG-

58) to connect the transmitter to the connector marked TRANSMITTER on the rear of the tuner. See

Figure 1 on page 3.

3. Connect the antenna(s) to the tuner as follows:

• Coaxial feedlines to the SO-239 connectors labeled ANTENNA.

• Random wire to the ANTENNA connector on the back of the unit using the enclosed adaptor.

Note: Route all random wire antennas safely to prevent RF burn hazard.

4. A GROUND post is provided for an RF ground connection. See “Grounding Hints” on page 13.

5. Connect a 12 to 15 VDC power source to the input jack labeled POWER.

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Alinco DX-801 Manual de instrucciones Pagina 16