Technalogix TAV-500, Руководство пользователя

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IX-2
10. The TAV-500 LCDs show the user the present status of the amplifiers. Adjust RF output power to
desired level (see Important RF Power Notice in previous section). Verify that the FWD Power
reads 400 to 500 Watts on the PA enclosure - depending on the modulation of the signal content.
The system is set up for 500 watts peak visual power using the sync and blanking signal and
should read 500 watts FWD Power on the LCD
under this condition only . The output power
level can be adjusted using the modulator or processor’s RF output level adjust. Keep in mind that
the system will shut down should the forward RF output power level be exceeded.
11. Ideally, the RFL Power should read zero. However, should a high VSWR be detected, the system
will automatically shut down and cycle as previously described. This is also a peak wattage
reading.
12. Verify that the power supply reads approximately 30 Volts DC (see supplied final inspection sheet
for factory settings of power supply levels) on the LCD of the power amplifier.
13. Look at the transmitted output using a suitable monitor. The picture and sound quality should be
clean and sharp. If the output picture and sound quality is unsatisfactory, check the input signals,
connections to the antenna system, antenna and transmission line VSWR, and the physical
condition of the antenna.
If reception problems are encountered, and the quality of transmission is satisfactory, the difficulty is
often with the receiving antenna or with obstructions in the path between the transmitter/translator and
receiver.