Product Description
Longitudinal and Vertical Time Code Reader
1U rackmount unit that reads both Longitudinal and Vertical Interval Timecode. Decoded LTC/VITC Time & User values are
displayed on the front panel LED display, and may be inserted onto a video signal for subsequent recording or display on a TV
monitor
BURNT IN TIME CODE : TIME and/or USER Bits, with AUTO SIZING
TCR-300 can insert the decoded data into a standard video signal. White characters are surrounded with character-shaped black
masks, maximizing visibility on all possible program material. The display may be positioned at the top or the bottom of the
screen, and be muted as desired. Either a single row, or a dual row of characters, may be displayed on the screen. Selection is
also possible between TIME or USER Bits only. Character height is automatically reduced when both rows are displayed
simultaneously. With 525 signals, automatic compensation is applied to the vertical position of BITC screen characters, due to
the shorter field.
LONGITUDINAL TIMECODE
TCR-300 card decodes LTC at any speed between 1/50 - 220x normal speed, subject to satisfactory quality of the recovered off
tape code. The balanced input is high impedance, accepting levels between -12dBV.7 & +20 dB The
input may be used balanced or unbalanced, as required.
VERTICAL INTERVAL TIMECODE
TCR-300 automatically detects and decodes the first VITC data of the vertical interval,
without any adjustment. Detected VITC lines are CRC verified before being decoded. An internal VITC decode adjustment can
provide a measure of compensation for phase and amplitude errors on the input video signal.
AUTOMATIC CHANGE-OVER
Preserving low frame rate performance, TCR-300 changes over automatically to VITC data when the
LTC stream drops below 0.5 normal speed. This operation is inhibited if VITC is either absent or
corrupt.
TCR-300 SPECIFICATION
INPUT: LTC XLR-3, Hi Z balanced. -12 to +20dBV.7
VIDEO: BNC, 1 Volt terminating
VITC: 600mV nominal
TV Standard: PAL & SECAM ( CCIR ), or NTSC
Xtal lock: CCIR stability sources only, ie unlocked Xtal on non-TBC VTR PB etc.
OUTPUT: Video 1 Volt, BNC 75ohms.
Freq resp: +0.1dB nominal, @ 6MHz
DP: 0.5' nominal max
DG: 0.5% nominal max
Characters: 700mV nominal
INSERTION: Nominal +0.1dB
POWER dc: 5V 300mA with display illuminated.
SPEED LTC: Min 1/50x play, with coherent code, typically 1/10 achievable on VTR rock & roll. Max >220x play, with coherent
code.
VITC: 1X - still, with coherent code. CRC validation required for update.
VITC position: Auto seeking, first valid packet.
Welcome to Murraypro electronics. With over 45 years experience developing broadcast
television test, monitoring and generation equipment, our products are designed for you.
TCR-300
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