Orban OPTIMOD-FM 8700, Руководство по эксплуатации

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OPTIMOD-FM DIGITAL INTRODUCTION
1-29
EAS Test
For stations participating in the Emergency Alert System (EAS) in the United States,
broadcast of EAS tones and data is accomplished in two different ways:
Note: Normal 8700i processing may not allow the full modulation level as re-
quired by EAS standards. It is therefore necessary to temporarily defeat the
8700i’s processing during the broadcast of EAS tones and data. Placing the 8700i
in its
B
YPASS
Test Mode can defeat the processing. The
B
YPASS
G
AIN
control al-
lows a fixed gain trim through the 8700i. See “Test Modes,” on page 3-88 for
more information.
1. Place the 8700i in Bypass mode locally.
A) Locate to S
YSTEM
S
ETUP
on the pop-up Menu display, then press Enter button.
B) Select T
EST
M
ODES
> Locate to T
EST
M
ODES
icon and press Enter button.
C) Locate to B
YPASS
, then press Enter button.
D) Begin EAS broadcast.
After the EAS broadcast, resume normal processing:
E)
Locate
to
O
PERATE
in the Test Modes screen, then press
Enter
button.
This will restore the processing preset in use prior to the Test Mode.
2. Place the 8700i in Bypass mode by remote control.
To do this, you must first program any two Remote Interface inputs for “Bypass”
and “Exit Test,” respectively:
A) Connect two outputs from your station remote control system to the
R
EMOTE
I
NTERFACE
connector on the rear panel of the 8700i. See Figure 2-2 on page 2-
4.
B) Locate to S
YSTEM
S
ETUP
on the pop-up Menu display, then press Enter button.
C) Select N
ETWORK
R
EMOTE
> Locate to N
ETWORK
R
EMOTE
M
ODES
icon and press
Enter button.
D) Press and hold
Locate
right to the System Setup > Network / Remote 2 screen.
E) Select the desired Remote Interface input (1-8), using
Locate
button.
F) Turn the control knob to display B
YPASS
, then press the Enter button.
G) Locate to a different Remote Interface input, turn the control knob to display
E
XIT
T
EST
, then press the Enter button.
Once you have completed these initial steps, you can place the 8700i in Bypass
mode by remote control at any time:
A) Switch the 8700i into
B
YPASS
mode by a momentary command from your sta-
tion’s remote control to the input programmed as B
YPASS
.
B) Begin EAS broadcast.