NETWORK, HYBRID BRANCHING TA-618(XW-1)/FCC-17 AND TA-640(XW-1)/FCC-17 THROUGH TA-644(XW-1)/FCC-17 (HYBRID BRANCHING PANEL).
Phase B (Final).
LENKURT ELECTRIC CO INC SAN CARLOS CALIF
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This report contains a summary of the development of two Hybrid Branching Networks TA-618XW-1FCC-17 and TA-640XW-1FCC-17 through TA-644XW-1FCC-17 fabricated under the provisions of Contract AF 30635-11188, Modification 12. The hybrid branching networks were designed and developed for insertion in a radio baseband to allow supergroups or groups of vf channels to be dropped from the baseband and be routed to multiplex terminal equipment. The remainder of the vf channels remain in the baseband as through channels. Any channels dropped may be replaced by new channels covering the same frequency range. Evaluation of the two hybrid branching panels was accomplished to determine compliance with design requirements set forth in Lenkurt Electric Co., Inc. equipment specification 805-02738, and to evaluate equipment performance. The evaluation tests indicated the equipment is highly reliable and is entirely within the specifications set forth. However, when the equipment was stored for eight hours at -62C, the molded cases encasing the input and output transformers cracked. Further tests revealed no resultant decrease in performance quality. Author
- Electrical and Electronic Equipment
- Radio Communications