TM 11-5821-333-30
2-18. RETRANSMIT OPERATIONS
The retransmit (RXMT) function allows two rts to be used as a radio relay.
When the FUNCTION switch is set to RXMT, the rt operates as in SQON. The switching module controls retransmit
operation. See Figure FO-9. The receiving rt demodulates the rf as described in paragraph 2-8. The demodu-
lated signal is routed to pin X of system connector J1 (RXMT SIG OUT). The switching module sets RXMT CONT
OUT line to logic O when squelch is broken by detection of 150 Hz or by the bit sync acquiring lock. RXMT CONT
OUT is routed through a buffer on the interface module.
The cable that connects the two rts route the receiving RT OUT lines to the transmitting rt IN lines. When the RXMT
CONT IN line is at logic 0, the rt is keyed. RXMT SIG IN is routed through the switching module to the interface
module. The interface module processes the signal and routes it to the switching module for amplification and
switching to the amplifier-oscillator.
The RXMT A/D SEL line is used to select the analog or digital mode. The analog mode is selected if it is open
(about 2.5 V). The digital mode is selected if it is grounded.
Section II. REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
2-19. COMMON TOOLS AND EQUIPMENT
For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE)
applicable to your unit. Common tools required for maintenance of the rt are listed in the Maintenance Allocation
Chart. It is appendix B of TM 11-5821-333-12.
2-20. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
No special tools are required. For TMDE and support equipment refer to the Maintenance Allocation Chart,
appendix B of TM 11-5821-333-12.
2-21. REPAIR PARTS
Repair parts are listed and illustrated in TM 11-5821-333-23P.
2-17
