Preamp Transmit-Receive Sequencer Circuit

  
This circuit is useful in amateur radio VHF and UHF work where a mast-mounted antenna preamp is used for receiving. The kit controls T-R switching and change-over relay sequencing so that high RF levels are prevented
Preamp Transmit-Receive Sequencer Circuit - schematic

from accidentally being applied to the preamplifier during switching intervals.




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