Dynamic Rds - DEVA Broadcast DB9009-RX Maintenance And Operation Instruction Manual

DYNAMIC RDS

Dynamic PS
'marches' the message across the display screen one character at a time. The
message requires a much longer transmission time in this mode, but a glance at the radio display a
few seconds still allows the driver to get the full message without missing words.
Scroll Speed – The speed of dynamic PS messaging is set here, or dynamic PS messaging can
be turned off entirely. When 0 - DPS Disabled is selected, the dynamic PS message remains in the
nonvolatile encoder memory, but only the 8-character default static "street name" typed into the PS
field (Basic RDS) will be displayed on the receiver faceplate. Setting the speed at 1 - Slowest will
result in the slowest refresh rate of the 'block' message, or slowest safe scrolling. 9 - Fastest is the
fastest speed, but many RDS radios display gibberish at high speed settings. The display should be
stable with any radio at a speed setting of 7 or lower.
Parse Mode – sets the scroll step to be used in the "block" mode message transmission, more
popular as 'grouped-word' method. Once Parse Mode optionis set, this encoder function is valid
for any scrolling-PS message, whether it is entered into the static DPS register, or received as
ASCII text from station automation. Very short words are sent together in groups. For example,
THIS IS constitutes seven characters that can be sent as a group. The same is applicable for OF
NOW HERE, also. Longer words, up to and including 8 characters, are sent individually:
THE or
WARNING or DOUGHNUT or BICYCLE. The device can either center words that are sent individually
on the radio display or left-justify them. This will be covered along with the function of the 'DPS
Scroll Step'. Words that exceed the available 8 characters are 'sidestepped' through two or more
consecutive displays. Examples: EMERGENC followed by MERGENCY, or SUPERMAR followed
by UPERMARK and PERMARKE and ERMARKET. This method of splitting words gives a good
sense of continuity and readability. Setting Parse Mode to 1 - Scroll by 1 letter will scroll the
message one character at a time, as described. Other numbers also safe-scroll the message, but at 2,
3, 4, and up to 8 characters at a time. Selecting 9 - Left Justified will parse, as described, but text
will be left-justified rather than centered on the display. 2 through 8 may be useful in some special
RDS applications, but 0 and 1 are the primary Parse Mode selections. To recap: 0 - Centered will
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