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CLOSED CAPTION SERIES

                    

            

         

 

LINK ELECTRONICS, INC.

CHARACTER GENERATOR CAPTION DECODER

MODEL PDR-870 

                                                  

FEATURES

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 Caption Decoder

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 Data Recovery Decoder

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 Character Generator Decoder

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 TV Ratings Monitor

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 NTSC or PAL(Stable Source)

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 Composite or S-VHS Input

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 High Impedenced Loop

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 One RU Chassis

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 S/N Ratio >60dB

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 Dif Gain <0.1%

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 Dif Phase <0.1°

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 RS-232

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 4 Caption Channels

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 4 Text Channels

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 XDS Channel

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 Drop Shadow

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 Extended Character Set

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 Box Character Keying

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 Internal or External Video

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 Internal Video Generator

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 Background Adjust

The PDR-870 is a high performance Closed Caption
Decoder for the NTSC and PAL systems. It is
capable of processing and displaying all standard
closed caption format transmissions--including the
EIA-608 Extended Character Set--in the manner of
a typical closed caption decoder. A stable input video
source is required.

Nine standard data channels are supported by the
PDR-870: Captions channels 1 thru 4 (CC1-CC4),
Text channels 1 thru 4 (T1-T4) and Extended Data
Services (XDS). The various decoding channels are
selectable by four front-panel toggle switches.
Additional front-panel toggle switches provide
NTSC/PAL video standard selection, drop-shadow or
box character keying, and internal/external video.
The internal video function allows the PDR-870 to
generate its own video as a medium for producing
open captions.

In addition, the PDR-870 can accept an RS-232 data
stream and directly produce open captions, serving
as a “character generator decoder.” Along with it’s
powerful decoder functions, the PDR-870 can serve
as an accurate “V-Chip” ratings monitor. All rating
information described by EIA-744 may be displayed
on-screen by the PDR-870. Both TV Parental
Guidelines and Motion Picture Association of
America (MPAA) ratings are supported.

The PDR-870 can recover incoming Line 21 data
and send it to a computer terminal via the RS-232
port. This data may be recovered with or without the
embedded closed caption control codes.  

The PDR-870 can also perform a unique data
conversion to reveal the “non-printing” characters
that are part of the closed caption control codes.

Designed with the professional user in mind, the
PDR-870 processes baseband video in either
composite or S-Video formats. A rear-panel push-
button switch is used to select the input/output
format. The selected video mode is displayed at the
front panel by a pair of green LEDs.

The composite video format uses a single high-
impedance, looping input with two outputs. The S-
Video format can use standard 4-pin mini-DIN
connectors or BNCs for its  input/output. The video
performance is outstanding with differential phase
and gain errors limited to less than 0.1° and 0.1%
respectively.

The un-weighted signal-to-noise ratio approaches
70dB.  AC-Coupled, complementary differential input
amplifiers assure high common mode noise rejection
while discrete phase-linear keyers provide clean
insertion of the decoded characters into the video
image.

Packaged in Link’s 1RU 800-Series chassis, the
PDR-870 is both rugged and reliable.  All Link
Electronics products are covered by one of the best
warranties in the industry, 10-years including parts
and labor. High performance, flexibility, and
economy are equally represented in the PDR-870
CG, Data Recovery Decoder .

LINK

 ELECTRONICS, INC. 

 

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   2137 Rust Avenue   

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  Cape Girardeau, MO 63703-7668

 Phone 573 334 4433    

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     FAX  573 334 9255

MADE IN THE USA

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