FLEXCOMM
II
C-5000 (Non-Digital)
Installation Manual
150-1355-000 Rev. M
CONFIDENTIAL AND PROPRIETARY TO COBHAM
Page 135
2. System Checkout (Continued)
A. General (Continued)
with any transceivers. This programming can be performed either with a PC (Wulfsberg Remote
Programming Software and cable P/N 149-041389-01XX) or using the front panel buttons and
knobs. Not only is it easier to use a PC but it will also provide a backup of all configuration and
channel data that is loaded in the C-5000.
B. Checkout Setup
In order to perform system checkout procedures the installer must have a means by which to
transmit to and receive from the C-5000 system. While basic TX/RX tests can be performed to
verify system operation, the manufacturer recommends using calibrated test equipment that will
be able to determine the system quality. To fully verify the C-5000 system is functioning properly
the following equipment is required:
Radio service monitor (communications analyzer) capable of AM/FM Modes of operation
from 29.7 to 960 MHz.
1kHz Sinusoidal source capable of delivering .25 VRMS into a 150 Ohm load. (most
radio service monitors can perform this function.)
Thru-line Watt meter with 25 watt slugs that can handle 29.7 to 960 MHz (this requires
several slugs).
DC/AC Volt Meter
Low Ohmage resistance meter capable of reading mOhm levels.
C. Checklist
The following checklist should be completed prior to performing checkout procedures.
External system power (28 VDC, 10 Amps) available.
All connectors are securely connected.
Antenna(s) connected to proper transceiver RF ports.
C-5000 Operator’s Manual has been read and understood.
D. Checkout Procedure
(1) Check antenna bonding on each antenna in the system by measuring the resistance
between the antenna and antenna ground plane using the mOhm resistance meter. No
more than 5 mOhms should be measured. If this test fails, check that the mounting
surface under the antenna is clear of ALL paint or similar material.
(2) Apply power to the system. If the C-5000 does not turn on automatically, press the "ON"
button. If you don't know how to do this, go back at this point and read the Operator’s
manual. The C-5000 display will show various initialization screens and after a short time
display the "HOME" page.
(3) Verify keyboard backlit dimming functions properly if the installation is set up with
backlight control.