TM 11-5985-362-13
3-5. CHECKS AND ADJUSTMENTS
Checks and adjustments are restricted to re-tensioning of GUYS and CATENARIES and setting of the SPARK GAP on
the ANTENNA COUPLER after cleaning off surface of contaminants resulting from arcing.
a. Re-Tensioning of Guys and Catenaries
Re-tensioning of GUYS and CATENARIES is accomplished by applying additional force to the free end of the
rope passing through the ROPE TENSIONER.
b. Antenna Coupler Spark Gap Adjustment
WARNING
DEATH ON CONTACT
Transmitter must be shut down and tagged "Out of Service" before adjusting spark gap. Contact
with high RF voltages can be fatal, and electromagnetic radiation can cause severe or fatal
Internal burns.
NOTE
Spark gap adjustment is not normally required unless it is accidentally moved while making
electrical connection or is pitted from arcing.
(1) Adjust spark gap as follows:
a. Disconnect VERTICAL RADIATOR lead by removing WING NUT.
b. Loosen NUT until CONDUCTOR slides freely.
c. Position CONDUCTOR such that space between point of CONDUCTOR and STANDOFF is 1/8 +1132 inch.
Tighten NUT.
d. Connect VERTICAL RADIATOR lead and tighten WINGNUT making sure that electrical connection is tight.
3-5
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