65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: [email protected] ,Web: www.devabroadcast.com
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FIRST TIME POWER ON
In this chapter we will try to give you a brief guidance on starting and initial setup up of
DB4005. By this you will get initial understanding of procedures and measurements in daily use
of DB4005.
For the beginning the items needed are a pair of headphones and a connection to an outside
antenna. Considerations in the choice of antenna are described in details previously in this
manual
(see “Installation Specifications and Precautions regarding the RF Environment. Antenna
.
Assuming that the Mains voltage at your location is in permitted range of 110-240 VAC, you
can plug in the power cord free end into the wall socket. Now turn the
POWER
switch
ON
.
NOTE:
The DB4005 powers-up to the last selected frequency. This frequency, along with some
of the settings and parameters will be held by the DB4005’s non-volatile memory and used on
switching on of DB4005.
Plug the headphones into the front panel jack
PHONES
and using the
LEFT
< or
RIGHT
>
Navigational Buttons start tuning in. Find a strong local station that even with a short wire antenna
could be clearly heard on the phones. If needed try repositioning the antenna in order to improve
reception.
Regardless of the previous selections, both deviations (Positive and Negative) will be
selected upon DB4005 powering on and both
POS DEV
and
NEG DEV
LED indicators of
FM
MODULATING METERING
will be lighted. Although the
SELECT
button enables independent
monitoring of positive and negative deviation, the DB4005 is in the default mode when both the
POS DEV
and
NEG DEV
indicators are lighted. Unless there is a reason for doing otherwise the
FM MODULATION METERING
display should be kept in the default mode for the most exact
measurement of the station’s carrier deviation.
The above are just the very first, basic steps in DB4005 operation. Detailed explanation of
tuning, setting up and measurement procedures are given in the next chapters.
Содержание DB4005
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