Features::
The MD-EM1 is a dual sideband modulator. When
modulating, be sure to leave one channel open after the
channel that you are modulating to. For example, if you
wanted to modulate onto channel 22, channels 22 and 23
need to be open, even though nothing will be seen on
channel 23.
Video Input Modulation::
The MD-EM1 has adjustable video input modulation.
The LED is set to light when the modulation input level
reaches 87.5%. To effectively set the video input
modulation level, rotate the knob slowly clockwise
until the LED becomes lit. Then, rotate it slightly
counter-clockwise, until the LED goes off, for
optimal results.
See fig. 2a.
VIDEO
MODULATION LEVEL
VIDEO
MODULATION LEVEL
OUTPUT LEVEL
35dBmV
25dBmV
UP
OFFSET MODE
CHANNEL SELECT
IRC
HRC
STD
TV
Fig. 2
a
Video Present Relay::
Your MD-EM1 comes equipped with a video present relay.
This can be connected directly to an a/v control system.
This contact is normally closed, and opens upon detection
of a video signal.
See fig. 3a.
Loop Through Outputs::
Video can be fed to your MD-EM1 through standard
composite cables or through S-video cables. There are
also loop through outputs which enable you to connect the
source input to another device. When using the loop
through outputs, be sure to change the resistance switch
to "1K
Ω
."
See fig. 3b.
4
OUT
S-VIDEO
S-VIDEO
RF-OUT
RF-OUT
VIDEO PRESENT
VIDEO PRESENT
NO
NO
NC
NC
C
C
V
V
R
R
L
L
75
75
O
O
1K
1K
O
O
a
b
Fig. 3
3
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