MFJ MFJ-949E Versa Tuner II Instruction Manual Download | Manualshive

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This file was downloaded from the website of G7SYW

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Summary of Contents for MFJ-949E Versa Tuner II

Page 1: ...This file was downloaded from the website of G7SYW http www g7syw co uk...

Page 2: ...needle meter measures the peak or average FORWARD power REFLECTED power and SWR The wattmeter is active in all the ANTENNA SELECTOR positions To use the wattmeter without the tuning circuit select one...

Page 3: ...is measured by observing the point where the forward and reflected power needles cross The SWR is indicated by the red curve closest to the needle crossing point No cumbersome or time consuming SWR se...

Page 4: ...ators can operate with high RF voltages These voltages may cause serious RF burns These high RF voltages may also damage anything contacting or within a half inch of the terminals 2 Install the MFJ 94...

Page 5: ...e MFJ 949E has maximum inductance in position A and minimum inductance in position L Less inductance is needed as the frequency is increased If too little inductance is used the tuner may not match th...

Page 6: ...2 6 1 2 L 12 8 1 2 8 1 2 L 10 9 9 L 3 Apply just enough power on CW or AM FM RTTY to obtain noticeable deflection on the reflected power meter 4 Carefully adjust the TRANSMITTER and ANTENNA MATCHING...

Page 7: ...ssible to match the load on the operating frequency NOTE If this tuner arcs when operating on the 160 meter band it may be necessary to reduce transmitter output power If you are still unsuccessful bu...

Page 8: ...l in almost any transmitting installation it is extremely important to have good RF grounds with long wire or other Marconi antennas Matching Problems Most matching problems occur when the antenna sys...

Page 9: ...ole antenna with high impedance lines keep the lines around these lengths The worst possible line lengths are shown in brackets 160 meter dipole 35 60 170 195 or 210 235 feet Avoid 130 260 ft 80 meter...

Page 10: ...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 You can also send...

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