Chapter 1 • Introduction
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1038056-0001 Revision A
7
Linear transmitter
Table 7 lists the HX260 linear transmitter specifications.
ON/OFF isolation for
Transmit Carrier
> 50 dBc
ODU DC Power
19.5V DC (Power supply to ODU through 0.1 ohm DC
resistance to IFL connector)
Maximum Current to
Saturated Radio
1.8A
Note:
The 10MHz reference clock on the saturated transmitter
port can be disabled under software control.
Table 6: ODU control signal characteristics (Continued)
Signal / Property
Description
Table 7: Linear transmitter specifications
Property
Value
Physical Interface
Female F-connector
Frequency Range
950 - 1700MHz
IF Impedance
75 Ohm
Frequency Step Size
1 Hz
Frequency Accuracy
< 13 Hz at TX IF Out output with
reference locked to symbol clock
Maximum RF Output Power
Nominal 0 dBm +/- 0.5dB with zero dB
TX attenuation
Transmit Mute
<-93 dBm
Transmit Power Control Range
40 dB in 0.1 dB steps
Transmit Power Control Accuracy
+/- .5 dB
ODU Reference Frequency
10.00 MHz
The 10MHz reference clock on the
saturated transmitter port can be
disabled under software control.
IFL Cable Quality
Maximum RF loss of 10dB up to
1700MHz and total DC resistance less
than 1 ohm
ODU Reference Power Level
-3dBm to +5dBm
ODU Reference Stability
Phase locked to external input from
GPS or recovered symbol clock
(selectable)
