Elecraft KRX3 User Manual download pdf (Page 3)

Introduction

If your KRX3 is already installed in your K3, turn to Using the Sub Receiver on page 46 for operating

instructions.

The KRX3 subreceiver features specifications identical to the main K3 receiver including up to five roofing

filters and an independent, dedicated DSP system. The subreceiver can tune the same range of frequencies as the

main receiver, including frequencies outside of the Amateur bands when it is equipped with the optional KBPF3

general coverage filter board.

The KRX3 has three major components as shown installed in a K3 in Figure 1. The shielded enclosure contains

the main KRX3 board, mixer and noise blanker pony boards, optional KBPF3 general coverage filter board and

roofing filters that you will assemble and mount in the enclosure.

Only a few basic tools are required to assemble the components and install them in the K3 (see page 6).

Figure 1. KRX3 Subreceiver Installed in K3.

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Elecraft KRX3 User Manual Page 3