Shively Labs 6842, Instruction Manual Installation, Operation, & Maintenance, Page: 45 / 64

37
Startup
g. When you have set the transformer, use a sharp point to scribe the shaft of
each control rod where it leaves the flange collar. Record the settings of the
control rods and file this information with this manual for future reference.
h. Tighten the hose clamps. If the clamps are left loose, vibration may change
the adjustments.
Before beginning
checkout:
Before beginning checkout of the antenna system, be sure the following items
have been done:
• The antenna system has been installed in accordance with this
manual and the installation drawing.
• All radiators are operating and VSWR is within specification.
• The initial characterization data have been recorded.
• The system is gas-tight, purged, and pressurized.
Check out.
Check the system out as follows:
a. Bring up RF power slowly and observe transmitter readings, stability, and
general operation.
b. Run at about half power for at least an hour, reading forward and reflected
power, stability, etc.
c. If the system is stable and seems to be operating properly, bring it up to full
power. Take initial readings, and repeat the readings periodically.
Performance readings should not change, and there should be no evidence of
abnormal heating in the antenna system.
If any problem is found, fix it now. Call Shively Labs if you need help or
advice.
Operate.
Once the antenna has been installed and VSWR has been optimized, simply
apply the transmitter signal. Don’t exceed the rated power of the antenna.