Rds; Basic Rds - DEVA Broadcast DB7002 Maintenance And Operation Instruction Manual

RDS

One of our core competencies lies in the RDS/RBDS. The RDS/RBDS page is very
comprehensive, with a display of the RadioText (RTA and RTB), basic RDS/RBDS fields and a
table of all decoded RDS/RBDS groups with a percentage measurement based on the overall RDS/
RBDS data stream or group count. A very useful graph on this display is the rolling RDS/RBDS
bit error rate (BER) display.
Total groups received indicator – all received groups are systematized into a table, representing
the percentage/quantity of the groups in the received RDS/RBDS signal. The user selects how the
"Total groups received" data should be displayed: as Percents [%] or [Count], by selecting the
corresponding button.
NOTE: The bit error rate or bit error ratio (BER) is the number of bit errors divided by the
total number of transferred bits during a studied time interval. Result closer or equal to 0 indicates
that no bit errors are detected and vice versa result closer or equal to 1 indicates that the received
transferred bits are only errors.

Basic RDS

PI/CALL (Program Identification) – The PI code is your station's 'digital address'. It is a
hexadecimal code that is assigned by an appropriate broadcasting authority in most countries,
but in the United States the PI code is numerically calculated from the station's call sign. We
have provided a calculator utility within the DB7002. An in-depth discussion of the mathematical
calculation is given in RDS/RBDS Standard.;
PS (Program Service Name) – This is the station's "street name" that will appear on the receiver
faceplate display. The PS can be up to eight characters in length (including spaces) and can be as
simple as the station's call letters: KWOW or KWOW FM, or a slogan: NEWSTALK or LIVE 95.
PTY (Program Type) – The PTY data flag identifies the station format from a pre-defined
categories. Many RDS receivers are able to seek the listener's preferred format automatically.
This means that a car radio can switch from a fading station to a stronger one that carries the
same variety of music, though not the very same program, as provided by AF switching. The PTY
function of RDS helps a broadcaster catch 'transient audience' share. The PTY code is not meant
to change from song to song or to accommodate a top-of-the-hour newscast, however.
65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: office@devabroadcast.com ,Web: www.devabroadcast.com
- 57 -