Elecraft KRX3 User Manual download pdf (Page 30)

Mount the solder lug attached to the braid as shown in Figure 34, using a 4-40 3/8” (9.5 MM) black pan

head screw, #4 inside tooth lock washer and 4-40 nut. If you do not have a KAT3 installed, there will be no

connector in the ANT2 hole. In that case, the solder lug is directly against the unpainted inside surface of the

rear panel.

Figure 34. Installing AUX RF Connector, Part 2

Thread the coaxial cable between the edge of the KANT3 or KAT3 board and the rear panel as shown. If

you have the KPA3 option installed, push the cable under the circuit breaker on the fan panel at an upward angle

so it crosses the fans above the KAT3 amplifier module circuit board and out through the hole in the KPA3

shield as shown in Figure 35.

Figure 35. Routing TMP Cable to Rear Panel AUX RF Connector with KPA3 Installed.

Replace the right side panel on the K3, installing the 4-40 3/16” flat head screws shown in Figure 32 except

for screw number 5. It will be replaced later with the stiffener bar.

Replace the 4-40 1/4” (6.4 mm) zinc pan head screw and washer that holds the KAT3 board to the standoff

as shown in Figure 31.

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Elecraft KRX3 User Manual Page 30