Eleciting The Best Performance From Nad 712; To Change The Am Tuning Step; Antennas For Better Reception - NAD 712 Owner's Manual

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MUTE Press the MUTE Button to temporarily
switch off the sound to the speakers
and headphones. The Mute indicator
(MUTE) flashes in the Display Panel
when the NAD-712 is in Mute mode.
Press MUTE again to restore sound
PRESET Switches NAD-712 to Tuner and
pages through the Preset stations on
AM or FM.
SEARCH Starts the Tuner Search function,
moving up or down the frequency
band.
TUNE Selects the Manual Tune function,
stepping up or down the frequency
band.
VOLUME Increases or decreases the Volume
setting using the motorised front
panel Volume control.
FM Selects the FM tuner as the active
input. (This replaces the function of the
Tuner button on the remote handset.)
AM Selects the AM tuner as the active
input. (This replaces the function of the
Tuner button on the remote handset.)
AUX Selects the Aux as the active input.
LD Selects the Laser Disc as the active
input.
VCR Selects VIDEO as the active input.
TAPE 1 Selects Tape 1 (Monitor) as the active
input.
TAPE 2 Selects Tape 2 as the active input.
CD Selects CD as the active input.
CASSETTE DECK CONTROL
(for use with NAD Cassette Deck)
Stops Play or Recording.
/
| |
Starts Recording.
Starts Play.
Rewind.
Fast Forward.
PAUSE Pauses Play or Record Modes.
Deck A and B controls are for the operation of the
two cassette transports on an NAD
dubbing cassette deck.
CD PLAYER CONTROL
(for use with NAD CD Player)
Stops Play.
| Skip to previous track
|
Skip to next track
PLAY Play.
PAUSE Pause.
DISC Next disc. (for NAD CD changers)
APPENDIX: ELICITING THE BEST
PERFORMANCE FROM THE NAD 712
NAD
8

TO CHANGE THE AM TUNING STEP.

When tuning on the AM medium-wave band, the
frequency changes by increments of 10 kHz in North
America or 9 kHz in Europe. The following procedure
toggles the tuning circuit between these settings.
1. Press the MODE button and hold it in.
2. While continuing to press MODE, press the
TUNE (Up) button.
3. Release the TUNE button.
4. Release the MODE button.

ANTENNAS FOR BETTER RECEPTION

A ribbon-wire "dipole" antenna may provide ade-
quate reception of strong FM signals. But such an
antenna is not very efficient at rejecting "multipath"
and other forms of FM interference. And it cannot
easily be rotated to optimize its pickup pattern for
best reception of stations in different directions. In
most cases you can improve reception by using a
better antenna. The recommended options, in order
of increasing cost, are as follows:
(1) A basic "rabbit-ears" indoor TV antenna without
auxiliary coils or tuning switches. Electrically, such
an antenna is just another dipole (similar to the rib-
bon-wire antenna). But since its tuned elements are
made of metal rods, it can easily be rotated. Stretch
out each of its two arms to a length of 30 inches (75
cm), and orientate them horizontally or at a shallow
angle (less than 45 degrees upward). The ribbon
wire emerging from the antenna's base should be
connected to the balun adapter's screw terminals in
place of the simple ribbon-wire antenna. Now, for
each station in turn, after you tune the station you can
rotate the antenna for best reception.
(2) A more elaborate rabbit-ears indoor TV antenna
with a tuning switch. This type of antenna does NOT
have greater sensitivity than the simpler rabbit-ears
unit, so if your problem is that the signals you want to
receive are weak and noisy, an outdoor antenna is
the only effective solution. But in cities and in large
buildings, where signals are strong but are contami-
nated by reflected "multipath" signals that interfere
with reception, the tuning switch on an elaborate
indoor antenna may reduce the interference.
(3) An electrically tuned indoor antenna. Again,
such antennas may not provide any advantage over
the simplest type of "rabbit-ears" unit for receiving
weak signals. But where strong signals are contami-
nated with interference, the antenna's aiming and
tuning controls may reject the interference and yield
cleaner reception.
(4) An outdoor antenna. Even the finest indoor
antenna, no matter how elaborate, cannot fully exploit
the capabilities of a good outdoor antenna. For the
lowest noise, least distortion, and largest choice of
well-received broadcasts, an outdoor antenna is the
best complement to a fine tuner.
A roof-mounted antenna has three fundamental
advantages. Its large size yields better sensitivity
(pulling in a stronger signal from the desired station).
Its narrower directional pattern yields more effective
rejection of multipath reflections arriving from other
directions. Its location on a roof or tall mast places it