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Appendix A - DXE-MBVE-5A-3ATP - Antenna Package with the
MFJ-927 Remote Automatic Tuner
Note: The DXE-MBV-ATU-1 Remote Automatic Antenna
Tuner - MFJ-927- is limited to 200 Watts maximum power.
Refer to the DXE-MBV-ATU-1 manual for details on assembly. The only changes when using the
Multi-Band Vertical Remote Antenna Tuner on the MBVE-5A are:
1. Longer wire (with ring terminal) for the connection from the remote tuner to the MBVE-
5A feedpoint. This longer feedpoint connection (24-1/2”) is included with the MBVE-5A.
2. Positioning of the remote tuner shelf in relation to the MBVE-5A and the DXE-RADP-3
Radial Plate. Pictures shown below show how this is accomplished.
The DXE-MBV-ATU-1 Multi-Band Vertical Remote Antenna Tuner Add-on Kit for the DXE-
MBVA-5/5A Vertical Antennas is a remotely mounted automatic tuner system which also features
proper feedline isolation for a 43 foot vertical antenna. The DXE-MBV-ATU-1 is the perfect
solution for the DX’er running modest power (200 watts maximum) who wants maximum
performance on any 43 foot tall multi-band vertical antenna.
Full performance on 80-10 meters with no mismatch coaxial cable loss! A no compromise
system! A Bias Tee is included with this package for supplying the 12 Vdc power through the
coaxial cable from your radio shack to the remote tuner.
Bias Tee and Operation
The MFJ-4117 Bias Tee (included with the MFJ-927 Tuner) is usually located
inside the radio room and requires a +12 Vdc power source such as the DXE-
PSW-12D1A AC adapter, 12VDC/1000ma. Follow the instructions provided by
MFJ for both the Tuner and the Bias Tee. Once the power is applied to the tuner
via the Bias Tee, your vertical antenna system is ready to operate on 80-10
meters.
NOTE:
Review the MFJ-927 Remote IntelliTuner™ manual for a detailed explanation
of the MFJ-927 Remote IntelliTuner™ and the MFJ-4117 Bias Tee operation.
Installing the Bias-T incorrectly may cause damage to your radio.
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