MFJ VERSA TUNER II - Installation; Tuner Placement; Antenna Connections

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INSTAL L ATION
1. Locate the tuner in a convenient location at the
operating position. N OTE: LOCATE THE TUNER SO THE REAR
IS N OT A CCESS I BLE DURI NG OPE RA TION . If r andom wir e or
balanced line operation is used , the ce ramic fe ed
th r ough insu l ators wil l have high RF voltages which can
cause serious RF burns if touched when t r ansmitting .
2. In sta l l the MFJ - 941E between the t r ansmitter and antenna
as shown in the diag r am above . A coax line is connected
to the t r ansmitte r and the S0- 239 coax connector marked
TRANSMITTER on the back of the tuner.
3. One or two coax - fed antennas may be connected to the S0-
239
coax connectors marked COAX 1 or COAX 2. NO TE: Coax
1 and Coax 2
antennas may be connected di r ectly to the
t r ansmitte r , bypassing the tuner , by setting the ANTENNA
SELECTOR switch to COAX 1 DIRECT or COAX 2 DIRECT
r espectively .
4. A r andom
wire antenna may be connected to the five way
binding post ma r ked WIRE . The r andom length wire should
be l ong, high, and as clear of sur r ounding objects as
possible. Fo r optimum operation , the wire antenna
should be a quarter - wavelength or longer at the
operating frequency . Do NOT ground the random wire
antenna . Make ce r tain that the tuner is well - gr ounded
to the transmitter. A binding post marked GROUND is
provided for ground connection(s).
5. A balanced line fed antenna may be connected to the two
five w ay binding posts marked BAL ANCED LINE. A jumper
wire from the WIRE binding post , as indicated by a
dotted line on the MFJ - 941E, shou l d be connected to one
of the posts of the BALANCED LINE. This couples the
MFJ-941E to the balanced line through a 4:1 balun.
NOTE : E ither a balan c ed line or a rand om wire antenn a
m
ay be conne c te d t o the MFJ -941E at one time. If a
r andom
len gt h w ire i s used, make sure t h at t here is no
jum
per wire bet w een t he WI RE an d B ALA NCE D L INE binding
po sts .
6. An external 50 ohm dummy load maybe connected to the
EXT. DUMMY LOAD connector located at the rear of the
tune r.
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