27 9.3 Tips On Tapes And Their Characteristics; Tips On Batteries - uher 4000 REPORT MONITOR Bedienungsanleitung

The two halves of the tape are called tracks 1 and 2. To dis-
tinguish the two, a green lead is attached to the beginning
end of track 1, a red lead to the beginning of track 2. Always
commence recording with the green lead, in other words with
track 1.
9.3 Tips on tapes and their characteristics
The monitor circuit of the recorder permits optical contral of
the playback signal both during recerd - with monitor switch
set to T (off-tape) - and during sUbsequent playback. Although
the 0 dB mark may have been reached with the monitor switch
set to S (from source) during record, with the switch in off-
tape position er during playback the pointer on the level meter
may not reach the 0 dB mark or it may move beyond that mark.
This effect will not influence the record quality (as may be con-
firmed by an aural check); it is due to the toleranees of tape
sensitivity. Wavy tapes cause sound fall-outs just as do tapes
with accumulations of dust er bits of tape coatings on them.
When such difficulties arise - for example, at sound fall-outs
during recerd or playback - first carefully check the tape used
(see also sec. 8).
Although today's tapes are to a great extent unaffected by
temperatures, they should nonetheless be stored at anormal
room temperature and in a dust-free place, preferably in special
storing containers. They should not be stored near magnets
er magnetic fields under any condition.
Tapes that do not have standard width may not be used with
UHER 4000 REPORT MONITOR. Tapes designed for profes-
sional use are not suited for use with home tape machines
due to both their electro-acoustical properties (hiss, frequency
range) and their mechanical properties (greater surface rough-
ness, wear on tape head).
9.4 Tips on batteries
UHER 4000 REPORT MONITOR can be operaled on all com-
mercially available single-cell batteries. But leak~proof and
highly efficient types suitabJe for operation of electrical ap-
pliances are more recommended because oftheir greater capa-
city and storability. Operating times quoted refer to such celJs.
Dry cells have a ways of "recovering" somewhat when not
in use. Thus when, after a certain period of operation, battery
strength has become relatively weak (see sec. 1.1.2 on check-
ing battery strength), it may weil be that the ceUs are not yet
used up and, after taking a "rest", will permit further operation
(although offen for only a short period of time). Consequently,
do not let yourself be deceived: UHER special storage batteries
Z 212 and Z 214 combine the good features of the dry cell
battery with the added advantage of the rechargeable storage
battery, and they may be used in any position. Unlike dry cells,
discharged storage batteries do not "recover" and must be
recharged immediately, especially UHER lead storage battery
Z212.
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