MFJ MFJ-959B Bedienungsanleitung

MFJ-959B INSTRUCTIONS

Introduction

The MFJ-959B RECEIVER ANTENNA TUNER/PRE-AMPLIFIER is designed to

properly match your antenna to your receiver for better performance from 1.8 to

30 MHz with a single antenna.

Maximum signal power transfer occurs when the impedance of the antenna

matches the impedance of the receiver. This will happen at specific frequencies

as determined by the length of the antenna. At these frequencies a tuner is not

needed. If the antenna is used at frequencies other than the resonant

frequencies, the signal from the antenna to the receiver may be significantly

reduced due to the mismatch of the antenna to the receiver. The MFJ-959B can

transform the antenna impedance to match that of the receiver for maximum

signal. The MFJ-959B also has a broadband transistor pre-amplifier to help

boost signals to a copyable level which is especially helpful on the older

receivers which lack sensitivity. A 20 db attenuator is also built in to help

receivers plagued with overload problems from strong signals.

Installation

1. Plug the 12V AC adapter into the power jack on the MFJ-959B, then plug the

adapter in to the 110 AC wall socket. If 110V AC is not available, plug external

power of 9-18V DC into the rear panel power jack. The tip of the subminiature

plug is positive and the sleeve is ground.

2. Connect your receiver antenna input to one of the two output connectors on

the MFJ-959B marked RECEIVER. There are two sets of outputs for use with

2 radios and each output has an SO-239 connector and an RCA phono jack

connected in parallel for added convience.

3. Connect the antenna to one of the ANTENNA connections on the MFJ-959B.

There are two sets of inputs. Each input has both an SO-239 connector and

an RCA phono jack for the antenna connection. For best results when using a

random wire antenna with the MFJ-959B, the wire should be 1/4 wave or

longer at the lowest receiving frequency.

Operation

1. Set the RCVR & ANT pushbutton switches to the desired position to select the

proper receiver and antenna.

2. Set the ON-OFF/BYPASS pushbutton switch to the OFF/BYPASS position

(This bypasses the MFJ-959B).

3. Tune the receiver to the desired frequency.

4. Set the ON-OFF/BYPASS switch to ON.

5. Set the TUNER/AMP-TUNER switch to TUNER.

6. Turn the ANTENNA and RECEIVER controls on the MFJ-959B to about

mid scale and rotate the INDUCTOR switch for maximum signal. On the

higher bands, the ANTENNA and RECEIVER controls may need to be set to

3/4 scale to find the maximum signal of the inductor. Inductor "A" setting is for

the lowest frequency and Inductor "J" is for the highest frequency.

7. After finding the maximum signal with the inductor, turn the ANTENNA and

RECEIVER controls for maximum signal. If necessary, try one inductor setting

either side to see if any greater signal can be obtained. With an antenna close

to resonance the increase in signal may be very small, but on antennas not

near resonance, an increase of 2 to 4 "S" units may be achieved.

8. If added signal gain is needed, set the TUNER/AMP-TUNER to TUNER/AMP

switch. This will give an added gain of 20 db to help pull the weak signals out

of the noise.Fine tuning of the RECEIVER and ANTENNA controls may be

required for maximum gain. Adjust GAIN control for the desired signal level.

Note: Gain control is usable only when the TUNER/AMP-TUNER switch is in

the TUNER/AMP position.

9. If overload problems show up in your receiver due to nearby transmitters

(Ham, CB Shortwave, Broadcasting or others), set the ATTN-ON/OFF switch

to ATTN-ON to reduce the interference. The tuner circuit will help reduce the

out-of-band interference and the attenuator will reduce the overloading signal

as well as the desired signal.

Inhaltsverzeichnis

Andere MFJ Tuner Handbücher

MFJ

MFJ MFJ-998 Bedienungsanleitung

MFJ

MFJ MFJ-926 Bedienungsanleitung

MFJ

MFJ VersaTuner V -989D Bedienungsanleitung

MFJ

MFJ MatchMaker 212 Bedienungsanleitung

MFJ

MFJ 945D Bedienungsanleitung

MFJ

MFJ MFJ-1642 Bedienungsanleitung

MFJ

MFJ MFJ-993 Bedienungsanleitung

MFJ

MFJ Plug&Play Intellituner -939 Bedienungsanleitung

MFJ

MFJ MFJ-945E Bedienungsanleitung

MFJ

MFJ MFJ-902 Bedienungsanleitung

MFJ

MFJ IntelliTuner MFJ-993B Bedienungsanleitung

MFJ

MFJ MFJ-1644 Bedienungsanleitung

MFJ

MFJ MFJ-940B Bedienungsanleitung

MFJ

MFJ MFJ-931 Bedienungsanleitung

MFJ

MFJ MFJ-993BRT Bedienungsanleitung

MFJ

MFJ MFJ-941EK Bedienungsanleitung

MFJ

MFJ MFJ-926B Bedienungsanleitung

MFJ

MFJ MFJ-924 Bedienungsanleitung

MFJ

MFJ IntelliTuner -991 Bedienungsanleitung

MFJ

MFJ 9232 Bedienungsanleitung

MFJ

MFJ MFJ-936C Bedienungsanleitung

MFJ

MFJ IntelliTuner -994B Bedienungsanleitung

MFJ

MFJ 904 Bedienungsanleitung

MFJ

MFJ VersaTuner III -962D Bedienungsanleitung

Beliebte Tuner Handbücher anderer Marken

Tunersys

Tunersys WS16 1 Bedienungsanleitung

Arcam

Arcam DT91 Bedienungsanleitung

Magnum

Magnum MD 102T Bedienungsanleitung

HDHomeRun

HDHomeRun 20121008 Bedienungsanleitung

Crestron

Crestron C2N-TXM Bedienungsanleitung

Eico

Eico HFT-92 Bedienungsanleitung

NAD

NAD C 445 Bedienungsanleitung

Sony

Sony ST-SA5ES Bedienungsanleitung

Sirius Satellite Radio

Sirius Satellite Radio SC-FM1 Bedienungsanleitung

Antique Automobile Radio

Antique Automobile Radio 283501B Bedienungsanleitung

Monacor

Monacor PA-1200R Bedienungsanleitung

Technics

Technics ST-X301L Bedienungsanleitung

Manhattan

Manhattan 176156 Bedienungsanleitung

Marantz

Marantz ST-15S1 Bedienungsanleitung

Korg

Korg HA-40 Bedienungsanleitung

Harman Kardon

Harman Kardon TU915 Bedienungsanleitung

Teac

Teac T-1D Bedienungsanleitung

Pioneer

Pioneer GEX-P700DAB Bedienungsanleitung