R.F. INTERFERENCE
Radio signals by a neighboring commercial, amateur or police station may cause interference in
the form of moving ripples or diagonal streaks. Television or FM receivers operating near your
receiver, can also be the reason for this reaction. (Fig. 8.)
The insertion of a filter trap at the antenna terminals of the TV receiver will sometimes eliminate
or reduce this type of interference.
FIG. 8
FIG. 9—ANTENNA CONNECTIONS AT CABINET BACK
An outdoor type antenna is recommended for best reception. If such installation is impossible, different type indoor
antenna may be used. Quality of reception also depends upon local signal conditions.
Some models are equipped with a di-pole or mono-pole antenna mounted at the cabinet back. To use this antenna, raise
and extend rods. Vary the length and position of the rods or rod for best picture and sound.
Under favorable receiving conditions, satisfactory reception may be obtained with a 10 ft. length of antenna wire.
(Supplied with some models). Stretch out wire for best reception.
When using a regular outside antenna, disconnect the inside antenna leads from the antenna terminal screws. Connect
the antenna transmission line to both of these terminal screws.
THE PROOF OF ZENITH ANTENNA SUPERIORITY IS IN THE PICTURE.
Zenith TV antennas are designed and constructed to provide you maximum service and superior performance. Contact
your Zenith dealer for the one that will provide you with the best picture quality.
DIPLEXER
(SEE PAGE 8)
When using a combination VHF-UHF antenna system with a single transmission line it is necessary to have an
additional diplexer at the receiver.
Make the transmission line lengths from the diplexer to the VHF and UHF antenna post terminals on the receiver as
short as possible. See your Zenith dealer for additional information.
OSCILLATOR ADJUSTMENTS (VHF)
NOTE:
The VHF perma-set tuning control on the tuner is also the VHF channel oscillator adjustment.
No additional
oscillator adjustments are incorporated. Therefore, should re-tuning of a VHF TV channel be required, select the
channel and then manually turn the tuning knob for best picture and sound. Each individual VHF channel is tuned in
this manner.
[6]
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Page 6 of 8
Zenith Television Receiver Operating Manual, by Anonymous.
8/8/2009
http://www.yesterdayimage.com/27832-h/27832-h/27832-h.htm
