Outbound – Comtech EF Data MIDAS Version 4.X Basic Configuration User Manual
Page 64
MIDAS 4.2 Basic Configuration, Rev. 1
2–30
Setup and Operation
Outbound
C
C
e
e
n
n
t
t
e
e
r
r
F
F
r
r
e
e
q
q
u
u
e
e
n
n
c
c
y
y
M
M
H
H
z
z
I
I
F
F
This is the Center intermediate frequency (IF) of the Outbound Control
channel, the continuous carrier that is transmitted from the controller server to
the various network elements. This field allows the operator to define the IF
frequency on which the controller server will transmit to the nodes.
Accordingly, the nodes’ Inbound Center frequency (via the User Port) are set
to this frequency to receive the Outbound Control channel transmissions.
Acceptable values include 70 +/- 18 MHz and 140 +/- 36 MHz (in accordance
with the IF Center and Transponder Size settings on the System Setup
window), to accommodate the operating frequency ranges of the full spectrum
of satellite transponders and Comtech EF Data hardware capabilities. On
controller server startup, this frequency will be automatically programmed to
the control channel modem, modulator frequency (both primary and secondary
modems, if redundant), and the LinkSync
modem demodulator frequency.
L
L
-
-
b
b
a
a
n
n
d
d
This is the L-band frequency of the Outbound Control channel, the continuous
carrier that is transmitted from the controller server to the various network
elements. This field allows the operator to define the L-band frequency on
which the controller server will transmit to the nodes. Accordingly, the nodes’
Inbound Center frequency (via the User Port) are set to this frequency to
receive the Outbound Control channel transmissions. Acceptable values
include 950 to 1450 (in accordance with the L-band Center and Transponder
Size settings on the System Setup window), to accommodate the operating
frequency ranges of the full spectrum of satellite transponders and Comtech EF
Data hardware capabilities. On controller server startup, this frequency will be
automatically programmed to the control channel modem, modulator
frequency (both primary and secondary modems, if redundant), and the
LinkSync
modem demodulator frequency.
D
D
e
e
f
f
a
a
u
u
l
l
t
t
P
P
o
o
w
w
e
e
r
r
This is the default transmit power setting for the network control modem(s).
R
R
e
e
f
f
e
e
r
r
e
e
n
n
c
c
e
e
E
E
b
b
/
/
N
N
o
o
This is the stored value at which the received Outbound Control Channel
E
b
/N
o
will be maintained under clear sky conditions, as measured at the
SNM-1002 LinkSync
modem.