ALTEC LANSING INDUSTRIAL PROFESSIONAL SOUND PRODUCTS MICROPHONE LIST
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7500B-H True Diversity Dual-Receiver Wireless Microphone System
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7500B-H SYSTEM SPECIFICATIONS cont'd Emission/Modulation: Direct FM, crystal controlled, 15-kHz deviation, 60F3. Harmonic Distortion: 0.5% maximum, below transmitter limiting; 0.25% typical at 1 kHz. Operating Temperature: -20°C to +50°C (-4°F to +122°F). FCC Data: Approved under Parts 15, 74, and 90, as applicable. Standard Accessories: Operation Manual, Rackmount ears, Screwdriver, Fuse, Battery, Hex Wrench Optional Accessories: 126A Microphone Clip. 158A Mic Carrying Bag. Receiver Type: Single-frequency, singleconversion, superheterodyne FM. Image Rejection: 80 dB, typical. Intermediate Frequency: 10.7 MHz. Sensitivity: 1.6 µV for 50 dB S/N (processed), 20 kHz bandwidth. Ultimate Quieting: 105 dB (20 kHz flat); 108 dB (A-weighted). Squelch Quieting: Greater than 105 dB. (referenced to 15 kHz deviation). Audio Output: Mic Level: -18 to -46 dBm at full deviation (-30 to -60 dBm with normal headroom). IF Selectivity: 200 kHz, 9 poles, monolithic ceramic andLC filters. RF Selectivity: Approximately 5 MHz, 4-pole LC filter. Local Oscillator: Bipolar transistor, thirdovertone crystal controlled, low-side injection. Audio Processor: 2:1 logarithmic expander. Adjustments/Controls: Power switch, mic/line switch, output level adjust control. Indicators: Audio-level bargraph, diversity A/B LED's, Power: 115 or 235 Vac (internal switch selectable) 50/60 Hz, 10 Watts. Dimensions: (excluding rack-mount ears) Height: 1.75 inches. (4.45 cm) Weight: 6 lbs., 10 oz (3 kg). Power Output: 50 mW nominal. Frequency Stability: ±0.005%. Spurious Output: -45 dB minimum, -55 dB typical. Controls: Power on/off, mic-audio on/off, mic-level adjust. Audio Adjustment Range: 30 dB. Battery Life: 8-10 hours with one 9-V alkaline battery. Size: Weight: 10.5 oz (297.7 g), with battery. |
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