First Time Power On - DEVA Broadcast DB4004 Maintenance And Operation Instruction Manual

Dsp-based fm radio monitoring receiver with tcp/ip connectivity

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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

DB4004. By this you will get initial understanding of procedures and measurements in daily use

of DB4004.

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

Consideration." on page 14).

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 DB4004 powers-up to the last selected frequency. This frequency, along with some

of the settings and parameters will be held by the DB4004's non-volatile memory and used on

switching on of DB4004.

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 DB4004 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 DB4004 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 DB4004 operation. Detailed explanation of

tuning, setting up and measurement procedures are given in the next chapters.

65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria

Tel: +359 56 820027, Fax: +359 56 836700

E-mail: office@devabroadcast.com ,Web: www.devabroadcast.com

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