MFJ -1046 Instruction Manual

Passive preselector

Enlarged version

MFJ-1046 Instruction Manual

MFJ-1046 PASSIVE PRESELECTOR

Introduction

The MFJ-1046 Passive Preselector is designed to reduce receive overload from

strong out of band signals. It contains selective circuits that cover 1.6 to 33

MHz in six steps, providing the greatest selectivity on the lowest frequencies

where overload is most common.

The MFJ-1046 has two rear panel SO-239 connectors for RF connections and a

bypass switch to take the unit in and out of the circuit.

Connect the MFJ-1046 Passive Preselector between your antenna and receiver as

shown in Figure 1. The Radio connector goes directly to the receiver with a

short well shielded lead; the Antenna connector goes to the antenna.

WARNING: NEVER connect an amplifier or transmitter to the MFJ-1046

Passive Preselector.

cause MFJ-1046 Passive Preselector or other equipment to

be damaged.

Passive Preselector

Figure 1

Failure to follow this warning may

Table of Contents

Do you have a question about the MFJ-1046 and is the answer not in the manual?

Page 1 MHz in six steps, providing the greatest selectivity on the lowest frequencies where overload is most common. The MFJ-1046 has two rear panel SO-239 connectors for RF connections and a bypass switch to take the unit in and out of the circuit.
Page 2 MFJ-1046 Instruction Manual Passive Preselector Operation With the MFJ-1046 Passive Preselector properly connected, simply turn the Band switch to the desired band and adjust the Tune control for maximum signal level. With the Bypass switch depressed, the MFJ-1046 Passive Preselector becomes active.
Page 3 MFJ Technical Service at 601-323- 0549 or the MFJ Factory at 601-323-5869. You will be best helped if you have your unit, manual and all information on your station handy so you can answer any questions the technicians may ask.
Page 4 MFJ-1046 Instruction Manual Passive Preselector Schematic...