Elecraft K3 Assembly Manual - Manual (Page 55)

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Locate the three TMP cables. They are about 1/8” (3 mm) diameter coaxial cables with connectors at each
end as shown in Figure 75. Check each cable and trim any excess center conductor strands extending beyond the
end of the pin as shown. This will make mating the connectors much easier.
Figure 75. TMP Cable Connectors.
Install the three TMP cables between connectors on the KREF3 board, the main RF board and the KSYN3
board as follows. Handle the connectors by the finger-grip area shown in Figure 75, especially if you unplug a
connector. Do not pull on the coaxial cable to unplug a connector! When mating the connectors, be sure the
plugs are fully inserted as shown in Figure 75. To make the connectors easier to mate, first be sure the center pin
is started in the socket, then you may twist the connector back and forth while holding it by the metal ears if
needed to seat if fully as shown in Figure 75.
KREF3 board J7 to RF board J65.
KREF3 board J6 to RF board J81.
KREF3 board J2 to KSYN3 board J83.
Figure 76. Installing KREF3 TMP Cables.