aan
between transmitters anc exciters.
Since the shift was completed
and sepafate exciters were installed for each circut, there has
been negligible outage curing periods of QSY.
Outside-plans act#vity during March consisted of installing
doublet antennae for 4917.5 kes anc 3C59 kes working on BC 610's.
In addition, a 166 ft aatenin was inst-lec for the 2815 kes frequency.
Late in the month cortrol units for the AN/FRT-15 were installed in 2 special rack, and a,c. lines connected thereto.
On
3C arch circuits J 407 and J 408 were put on the AN/FRT-15 transmitters.
Back-ups exist for both circuits on BC 610's,
The Kwaja-
lein multiplex frequency of 5745 kes was shifted to 5145 kes in
ecoordance with ALCS directives.
3.
Receivers and Control Tower Maintenance.
Spare parts for
=" ~
the RD-92/UX Facsimile Recorder were received and installed, placing the recorders in full operation.
The previously installed con
mon grounc system was connected to receivers in the point-to-point
and AOC monitor positions, the VF ahd AN/TRR-3 bays, and the teletype machines.
A test circuit was initiated with the Army to check the Samson
equipment in the 7.2 communications center.
Two battery sources
were installed in the BD-~74 patch panel in Tech Control for multi-
plex equipment.
Received complaints on the circuit to 7.2 as to
“piping set! while at traffic using Samson equipment.
Trouble was
localized and corrected in the AN/FGC-5 cistributor drive unit.
The 450 cycles that the Samson equipment uses to synchronize itself
14
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