MFJ-1026 Instruction Manual
Deluxe Noise Canceling Signal Enhancer
4
Q5 and 6 form the active combiner, and Q4 is a line driver supplying output to the receiver.
Q1, Q2 and Q3 are part of RF sensing circuitry. They are included to automatically bypass the MFJ-1026
during transmissions, although we
HIGHLY
recommend using the rear panel T/R CONTROL line input
whenever possible.
Figure 1
Rear Panel Connections
The MFJ-1026 has a variety of connections on the rear panel. From left to right the connections are:
GND:
This connection is used to connect the MFJ-1026 to the station ground buss. Always use a short
ground wire when making this connection. Always try to
use solid copper wire (not braided wire) when
making a ground connection. Woven or braided wire has higher RF resistance than solid conductors.
MAIN ANTENNA:
This SO-239 provides a direct connection to the RADIO connector whenever
power is removed, if the external T/R CONTROL jack is grounded, or if transmitter power is applied.
This connector should connect to the input of the station's power amplifier or to the rest of the station
accessories, such as wattmeters or antenna tuners.
