Digital BETACAM VIDEOCASSETTE
To achieve recording at levels of density at 7.5m2/bit required for the Digital BETACAM format, Maxell brought together its extensive expertise in developing advanced metal tape technology and cassette mechanisms for professional broadcasting applications. The result: Maxell Digital BETACAM videocassettes for high-density component digital recording.
Thanks to Maxell’s exclusive Multi-Orientation Technology and advanced dispersion systems, our high output Ceramic Armor Metal Particles reach their full energy potential, improving the tape’s C/N ratio a full 2dB more than our popular BETACAM SP tape. In addition, the Particles’ tough Ceramic Armor coating ensures that output stays high because it protects against energy-dissipating heat, oxidation and corrosion.
High Durability Design
The combination of Ceramic Armor Metal Particles and Maxell’s special high strength binder makes a major contribution to increasing the tape’s rigidity - a factor that maximizes tape durability in demanding playback modes such as shuttle and still as well as improving compatibility with archiving and post-archival playback. Long-term reliability is raised even higher by the videocassette’s dust, heat and shock-resistant high electro-conductivity shell.
Advanced filler dispersion technology, used for Maxell’s D-2 digital videocassette, keeps the head surface clean.
Smooth Tape Travel
The backcoating used in Maxell’s new “Digital BETACAM” tape has been carefully designed to optimize smooth tape travel. What’s more, Maxell’s patented SW (Smooth Winding) reel makes a major contribution to reducing tape degradation because it delivers unmatched packing of the tape, especially in high-speed shuttle modes.
Fig1. Modulation Noise spectrum
Fig2. RF output(32MHz)change during still playback
Fig3. SW reel structure and principle
|Physical properties||Tape width||mm||12.650|
|Magnetic layer thickness||μm||3.0|
|Base film thickness||μm||10.0|
|Yield strength||N (kgf)||25 (2.6)|
|Breaking strength||N (kgf)||49 (5.0)|
|Magnetic layer electrical resistance||Ω/sq.||1 × 1010|
|Magnetic properties||Coercivity (Hc)||kA/m (Oe)||127 (1,600)|
|Retentivity (Br)||mT (G)||260 (2,600)|
|Squareness ratio (Br/Bm)||-||0.84|
|Electrical properties||Optimum recording current||%||100|
|RF output (32MHz)*||dB||0|
|Cassette size||Model||Tape length||Recording time (min.)||Dimensions (mm)||Pcs/case||Weight (kg)|
|L||B-D124L||732||2,402||124||254 × 145 × 25||271 × 162 × 33||10 pcs||0.75||8.0|
|S||B-D40||241||791||40||156 × 96 × 25||172 × 111 × 33||50 pcs
inner × 5)
- Indicates a comparison with MAXELL reference tape.
- Digital BETACAM is a trademark of Sony Corporation.