– Mr. B. A, International TV News Channel from Qatar,
Testimonials
Maxell Betacam SP 90 Minutes Tape B-90MLBQ Maxell Betacam SP BQ Video Cassette (Small) is used worldwide in broadcasting, and for ENG/EFP applications. It features a cross-linking, high performance binder system. This system, combined with the Ceramic Armor Metal Particles technology with its extremely thin ceramic layers, enhances the physical characteristics and corrosion resistance of the tape. The tape offers excellent reliability and durability, even under the harshest of electronic editing conditions. It has Outstanding Image and Audio Fidelity, which is demonstrated by high output characteristics over a wide range of frequencies. The fine Ceramic Armor Metal Particles produce superior physical characteristics, and corrosion- and oxidation-resistance qualities. The cassette shell has a high-precision guidance system, and is made from a heat-resistant, shockproof ABS resin. A special substance is added to the resin to eliminate static electricity. The tape is supplied in a hard plastic album case.
| Unit | Typical value | ||
| Physical properties | Tape width | mm | 12.650 |
| Tape thickness | μm | 14.5 | |
| Magnetic layer thickness | μm | 3.0 | |
| Base film thickness | μm | 10.5 | |
| Backcoating thickness | μm | 1.0 | |
| Yield strength | N (kgf) | 25 (2.6) | |
| Breaking strength | N (kgf) | 44 (4.5) | |
| Residual elongation | % | 0.07 | |
| Magnetic layer electrical resistance | Ω/sq. | 1 × 1010 | |
| Magnetic properties | Coercivity (Hc) | kA/m (Oe) | 121 (1,520) |
| Retentivity (Br) | mT (G) | 250 (2,500) | |
| Squareness ratio (Br/Bm) | - | 0.88 | |
| Video properties | RF output (7.0MHz) | dB | 0 |
| Video S/N* | dB | 0 | |
| Dropouts (-16dB, 10μs) | count/min. | 3 | |
| Still life | min. | more than 120 | |
| Audio properties | Sensitivity (1kHz)* | dB | 0 |
| Frequency response (15kHz/1kHz) | dB | 0 | |
| Erasing effect | dB | 73 | |
* Indicates a comparison with MAXELL reference tape.
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