Comtech EF Data CPA - Manual (Page 118)

CPA C-Band Indoor Solid State Power Amplifier Revision 1
Appendix A MN/CPA-IN.IOM
A–2
A.2 Maintenance Testing
The CPA ISSPA operates over the RF input frequency range of 5.845 to 6.425 GHz and has an RF
output level of +53.0 dBm (minimum) at 1 dB compression.
A.2.1 Test Point Samples
The RF input and output can be monitored at the front panel’s RF Sample Test Points (Type ‘N’
Input and Output connectors are provided). The sample RF input level is –20 dBc nominal, and
the RF output level is –40 dBc nominal. Actual measured data for these sample ports is located
on the front panel.
A.3 Troubleshooting
Operating problems can be identified by first observing the STATUS LED indicators on the CPA
front panel. When a fault condition is indicated, the specific fault or faults can be further
investigated by viewing the information provided via the front panel or, where applicable, the
Web Server Interface:
• From the front panel – Review the pertinent SELECT: MONITOR  Faults submenus;
further information can be obtained by viewing the stored events logs using the SELECT:
MONITOR  Stored  View menu.
Chapter 5. FRONT PANEL OPERATION
• From the ISSPA Web Server Interface – Select the ‘Status | Events’ page.
Sect. 6.4.4.4.1 in Chapter 6. ETHERNET-BASED REMOTE PRODUCT
MANAGEMENT
You should also check the status of the mute condition, either by using the front panel SELECT:
CONFIG  Amp  Mute menu, or viewing the Web Server Interface’s ‘Config | Amplifier’ page
(i.e., ‘Mute = On’ means that the amplifier will be muted).