Orban OPTIMOD 6300, Руководство по эксплуатации

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OPTIMOD 6300 DIGITAL INSTALLATION
2-13
The set time screen appears.
B) Hold down the appropriate soft button while turning the knob to enter the
hour, minute, and seconds. Enter seconds slightly ahead of the correct time.
C) Wait until the entered time agrees with the correct time. Then press the
E
NTER
T
IME
button to set the clock.
4. Set the date.
Hold down the appropriate soft button while turning the knob to enter the day,
month, and year.
5. Set up Daylight Saving Time (Summer Time).
A) Turn the knob to specify the date at which Daylight Saving Time begins in
your area.
B) Press the N
EXT
button.
C) Turn the knob to specify the date at which Daylight Saving Time ends in your
area.
6. Set the MAX LPF frequency as appropriate to your application.
[10.0 kHz] to [20.0 kHz]
The 6300’s audio bandwidth can be set in three places: (1) in Setup, (2) in
the EQ page of the Modify screen, and (3) by remote control. The 6300’s
bandwidth is always the
lowest of these three settings. The frequency in
Setup is a technical parameter that determines the highest bandwidth
available. The installing engineer should set it to be congruent with the
sample rate of the digital system being driven by the 6300. For example,
if the 6300 is driving a system with a 32kHz sample rate, set the
MAX LPF
to
15.0
KHZ
. That way, a setting of 20 kHz elsewhere will not cause exces-
sive bandwidth and aliasing because the 6300 will automatically override
it with the
MAX LPF
setting.
7. Set external AGC mode.
Most of the processing structures in the 6300 control level with a preliminary
AGC (Automatic Gain Control). If you are using a suitable Automatic Gain Con-
trol at the studio (such as an Orban 8200ST OPTIMOD-Studio or 464A Co-
Operator), the AGC in the 6300 should be defeated. This is so that the two AGCs
do not “fight” each other, and so they do not simultaneously increase gain, re-
sulting in increased noise.
A) Press the
N
EXT
button.
B) Set external AGC mode by turning the knob.
a) Set the field to
Y
ES
if you have an external AGC (such as an Orban 1100,
1101, 6300, 8200ST OPTIMOD-Studio, Orban 464A Co-Operator, or similar
AGC) installed at your studio feeding the studio-to-transmitter link. This
setting appropriately defeats the 6300’s AGC for all presets.