Technalogix TAVD-500, Руководство пользователя

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Technalogix Ltd. TAVD-500 Transmitter
VIII-11
Initial Hook Up
1. Ensure that the antenna has been swept and has a return loss of greater than 20dB (VSWR
= 1.2:1). This should be done before connecting the antenna cable to the transmitter output.
2. Check that your video source is present.
3. Place the transmitter/translator in its permanent location near a receptacle supplying
required AC voltage.
DO NOT APPLY AC POWER AND TURN ON POWER TO THE
TRANSMITTER / TRANSLATOR AT THIS TIME SINCE THE RF OUTPUT
MUST BE PROPERLY LOADED BEFORE OPERATION.
4. Place an appropriate AC power line protector, conditioner, and/or surge suppressor across
the AC supply line.
5. Hook up the modulator or processor as shown in their respective manuals for a transmitter or
translator. Do not connect the modulated signal from the RF OUT on the modulator or
processor to RF IN on the power amplifiers at this time. Because of the characteristics of
transistor devices, the RF drive should not be connected to the power amplifier until after the
power supply and bias voltages are present and stable.
6. Ensure that modulator or processor RF output level is turned down as far as possible.
7. Hook up the PA out to the Filter in.
8. Connect the RF Output on the filter enclosure to the wattmeter directly (no cable in between)
and then the output of the inline wattmeter to the transmitting antenna cable.
9. Plug power supply into AC mains (220 Vac, single phase).
10. Leave the AC rocker switch to “off” position.