MFJ Mfj-204b Bedienungsanleitung

MFJ-204B ANTENNA BRIDGE

PAGE 1

Thank you for purchasing the MFJ-204B Antenna Bridge. The MFJ-204B provides

an inexpensive and simple way to tune your antenna to match the feed-line and

transceiver from 160M thru 10M. The MFJ-204B also can be used to adjust the

matching device to the impedance of the feedline and enable you to obtain

proper load to your transmitter at any frequency using an antenna tuner

without having to key your transmitter while tuning

A 9V battery or a 12V DC adapter (MFJ-1312) can be used to power the MFJ204B.

To install the battery, remove all screws on both sides of the box and open

the case. Place the battery in the holder and connect the battery snap.

The RESISTANCE control is marked with letters from A thru G. These letters

correspond to the resistance value on the calibration chart on the bottom of

the MFJ-204B. Each mark is individually calibrated for better accuracy. A

frequency counter can be connected to the Frequency Output of the MFJ-204B to

get an accurate reading.

USING THE MFJ-204B ANTENNA BRIDGE

I. Measure antenna impedance at the antenna feed point.

1. Turn on the MFJ-204B.

2. Set the Band switch on the MFJ-204B to the desired band.

3. Turn your receiver to the desired frequency.

4. Connect a short piece of RG-58U or RG-8U with PL-259 (use your

wattmeter patch cable if desired) to the Coax Antenna connector

of the MFJ-204B.

5. Hold one end of the coax patch cable close to the antenna input of

your transceiver. Do not make physical connection.

6. Tune the TUNE control on the MFJ-204B until the oscillator can

be heard on the receiver. Make note of this TUNE control setting on

the MFJ-204B. DO NOT re-adjust.

7. Disconnect the patch cable.

8. Relocate the MFJ-204B close to the antenna feed point. Connect the

MFJ-204B to the antenna feed point with a RG-8U or RG-58U. Make

this cable as short as possible.

9. Turn the RESISTANCE control until a maximum dip on the meter can be

achieved. Note that a complete dip to "0" on the meter may not be

possible. In any case try to obtain the minimum meter reading.

10. Read the antenna resistance on the RESISTANCE control.

II. Adjust the antenna for resonance frequency.

1. Follow step from 1 thru 9 on section I.

2. If the resistance does not read 50 ohm, set the RESISTANCE control

to 50 ohm.

3. Adjust your antenna until the meter of the MFJ-204B reads minimum. At

this point the feed point impedance of the antenna is 50 ohm at the

frequency which was selected.

III. Using the MFJ-204B to tune an antenna tuner.

1. Turn on the MFJ-204B.

2. Set the Band switch on the MFJ-204B to the desired band. 3.

Turn your receiver to the desired frequency.

4. Connect a short piece of RG-58U or RG-8U with PL-259 (use the

wattmeter patch cable if desired) to the Coax Antenna connector of

the MFJ-204B.

5. Hold one end of the coax patch cable close to the antenna input

of your transceiver. Do not make physical connection.

6. Tune the TUNE control on the MFJ-204B until the oscillator can

be heard on the receiver. Make note of this tune control. setting

on the MFJ-204B. DO NOT re-adjust.

7. Disconnect the patch cable.

8. Connect the antenna to your antenna tuner, then connect the MFJ204B

to the tuner.

9. Set the RESISTANCE control to 50 ohm.

10. Tune the antenna tuner until the meter of the MFJ-204B reads minimum 11.

Your antenna tuner is now set for 50 ohm at that frequency. 12. Disconnect

the MFJ-204B from the antenna tuner. Connect your

transceiver to the antenna tuner. Check the antenna tuner setting

for best SWR with a SWR meter. A slight retuning of the tuner may

be necessary to insure minimum SWR.

Andere Handbücher für mfj-204b

Inhaltsverzeichnis

Andere MFJ Antenne Handbücher

MFJ

MFJ MFJ-1888 Bedienungsanleitung

MFJ

MFJ IntelliTuner -991 Bedienungsanleitung

MFJ

MFJ Mobile Big Stick MFJ-1652 Bedienungsanleitung

MFJ

MFJ 1777 Bedienungsanleitung

MFJ

MFJ MFJ-17758 Bedienungsanleitung

MFJ

MFJ MFJ-57B Bedienungsanleitung

MFJ

MFJ MFJ-1912 Bedienungsanleitung

MFJ

MFJ MFJ-1456 Bedienungsanleitung

MFJ

MFJ MFJ-1736 Bedienungsanleitung

MFJ

MFJ 1790 Bedienungsanleitung

MFJ

MFJ 2013 Bedienungsanleitung

MFJ

MFJ 1796 Bedienungsanleitung

MFJ

MFJ MFJ-1625 Bedienungsanleitung

MFJ

MFJ MFJ-1768 Bedienungsanleitung

MFJ

MFJ MFJ-1764 Bedienungsanleitung

MFJ

MFJ MFJ-1024 Bedienungsanleitung

MFJ

MFJ Octopus Antenna MFJ-2100 Bedienungsanleitung

MFJ

MFJ MFJ-1024 Bedienungsanleitung

MFJ

MFJ MFJ-1422 Bedienungsanleitung

MFJ

MFJ 2286 Bedienungsanleitung

MFJ

MFJ 1779C Bedienungsanleitung

MFJ

MFJ MFJ-949E Versa Tuner II Bedienungsanleitung

MFJ

MFJ MFJ-1796 Bedienungsanleitung

MFJ

MFJ Super Hi-Q Loop MFJ-1786 Bedienungsanleitung

Beliebte Antenne Handbücher anderer Marken

Alfa Network

Alfa Network APA-L01 Bedienungsanleitung

Naval

Naval PR-422CA Bedienungsanleitung

Feig Electronic

Feig Electronic ID ISC.ANTH200/200 Series Bedienungsanleitung

TERK Technologies

TERK Technologies TV44 Bedienungsanleitung

Directive Systems & Engineering

Directive Systems & Engineering DSE2324LYRMK Bedienungsanleitung

HP J8999A Bedienungsanleitung

MobilSat

MobilSat MSP-S Bedienungsanleitung

Steren

Steren ANT-UHF 13 Bedienungsanleitung

Novatel

Novatel 600-G Bedienungsanleitung

Radio Shack

Radio Shack Amplified VHF/UHF/FM Indoor Antenna Bedienungsanleitung

TRENDnet

TRENDnet TEW-AO12O Bedienungsanleitung

Radio Shack

Radio Shack 15-1837 Bedienungsanleitung

CommScope

CommScope CMAX-OMFX-43M-I53 Bedienungsanleitung

Ramsey Electronics

Ramsey Electronics DAP25 Bedienungsanleitung

COBHAM

COBHAM SAILOR 800 VSAT Gebrauchs- und Pflegehandbuch

Trango Systems

Trango Systems AD900-9 Bedienungsanleitung

Steren

Steren ANT-100 Bedienungsanleitung

Proxim

Proxim 5054-PA-23 Bedienungsanleitung

MFJ mfj-204b Bedienungsanleitung

Beliebte Antenne Handbücher anderer Marken