aci DSIM-GI, Руководство по установке

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DSIM-GI
Installation Guide Rev R
Page 10 of 20
8. Single Pilot AGC Setup
The DSIM controllers will come preset to have a desired pilot channel stored in the memory. The
controller is used to set the DSIM-GI module to the desired pilot channel by downloading the pilot
channel program into the DSIM-GI module's memory during setup .
1. With the ADU jumper in Auto position, turn ADU pot to MIN amplifier output level. Then
place the ADU jumper in the Manual position.
2. Remove the RF module faceplate and install the DSIM-GI AGC module into the amplifier.
Then re-install the RF module faceplate.
3.
If temperature is ≤40°F no warm up time is needed. At 20°F to 40°F use 15 min, 0°F to
20°F use 30 min, ≤0°F use 45 min. Warm up times are based on having the amplifier
closed.
4. Set the ADU/QADU pad to 0 dB:
5. Turn the manual gain reserve pot to MAX gain. Measure and record the output levels at
the highest operational frequency. Back off reserve gain pot 3.5dB@750MHz,
4dB@870MHz or 4.5dB@1GHz. Place the drive select jumper into the auto position.
6. Attach interface cable and THEN controller to the DSIM-GI.
7. The controller LED will then flash red / blue rapidly while the DSIM controller and DSIM-GI
module completes the syncing process. This process will take approximately
2-3 seconds to complete.
8. Once the controller LED stops flashing the red / blue sequence, it should then display a
constant blue, indicating that it is in MGC (manual) mode. Note: If the controller LED is
flashing blue, it indicates that it is in AGC mode; click “Mode” button two times to go from
AGC mode to MGC Manual Mode. In addition, if the controller LED displays a constant
purple, it indicates that it is in TGC mode; click “Mode” button once to go from TGC to MGC
Manual Mode.
9. Set the level and slope of the amplifier to the design specifications with the input pad and
Equalizer.
10. If the outside temperatures are below 40ºF/4.4ºC and above 80ºF/ 26.7ºC, then the RF
levels will need to be adjusted to ensure that the full gain compensation range of the DSIM
will be available over the operational temperature range. If the outside temperatures are
between 40ºF/4.4ºC and 80ºF/ 26.7ºC then go to step 14.