Comtech EF Data XPA-200-OD - Manual (Page 10)

XPA-200-OD Revision 1
System Operation MN/XPA200OD.IOM
7
1.3 T
URNING
O
N THE
SSPA
The SSPA does not contain a ‘Power On/Off’ switch. The SSPA is powered ON by
connecting the J3 AC Power connector to the appropriate prime power source.
WARNING
Never turn the unit ON without proper waveguide termination on the
J2 “RF OUTPUT” port. Individuals can be exposed to dangerously
high electromagnetic levels.
1.4 C
ONFIGURING THE
SSPA
The following paragraphs provide a quick start guide to the most commonly used
commands. Full coverage of all user remote commands is contained in Chapter 2.
1.4.1 A
TTENUATION
The SSPA’s attenuation is user configurable. The SSPA’s attenuation can be selected
between 00.00 and 25.00 dB in 0.25 dB increments.
Associated Remote Command(s): ATT=
1.4.2 M
UTE
The transmitter output state (the ‘RF OUT’ port, J2) will be ON only if the following
three requirements are met:
(1) The SSPA hardware must be fault free (i.e., No faults).
(2) The SSPA must be unmuted (i.e., MUT=0).
(3) The Amplifier must be ON (i.e., AMP=1).
Associated Remote Command(s): MUT=
1.4.3 TX A
MPLIFIER
The amplifier ON/OFF state is user controllable. Turning the TX amplifier OFF removes
the 10Vdc supply to the RF Power FETs. The TX Amplifier must be ON in order for the
SSPA to transmit a RF signal.
Associated Remote Command(s): AMP=