Inbound – Comtech EF Data MIDAS Version 4.X Basic Configuration User Manual
Page 65
MIDAS 4.2 Basic Configuration, Rev. 1
Setup and Operation 2–31
Inbound
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 Inbound Control channel,
for the burst-transmissions sent to the controller server from the various
network elements. This field allows the operator to define the IF frequency on
which the various network elements will transmit to the controller server.
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 EFData 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 center L-band frequency of the Inbound Control channel, for the
burst-transmissions sent to the controller server from the various network
elements. This field allows the operator to define the L-band frequency on
which the various network elements will transmit to the controller server.
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 MHz (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.