User manual NADY HM-3

[. . . ] HM-3 HeadmicTM The HM-3 is an ultra-light miniature cardioid polar pattern headworn condenser microphone, specifically designed to provide close-miked vocal pick-up in applications for which handsfree operation is required. Nady pioneered the first headworn mics on the market almost 20 years ago with the introduction of the original HeadmicTM. [. . . ] The pad supporting the boom rests on the temple in front of the ear, providing the necessary stability during use. The flexible mic boom descends from the ear on the left side and can easily be adjusted for the proper angle required. The entire HM-3 assembly has been moisture-proofed to guard against deterioration during use. After a high moisture application, such as aerobics, remove the foam screen, wipe off the headset with a towel, and permit it to airdry. Do not store the unit in a closed space (e. g. , a plastic bag) until all moisture has evaporated, and avoid conditions of extremely high humidity. This will help maintain the HM-3's excellent performance. While the HM-3 is not unusually sensitive to the outside environment, extremes in temperature can be harmful. Therefore, for example, avoid leaving the microphone in direct sunlight for long periods of time. Typical Frequency Response Curve +20 +10 FEATURES The HM-3 features an adjustable boom that can be set at any angle required by the user. The head worn support system is extremely light and comfortable, and is designed to be visually unobtrusive while worn. Its ear rests and temple provide maximum stability during use, even while moving, or shaking the head. [. . . ] The HM-3 is designed to operate with wireless microphone transmitters, dB 0 -10 -20 20 50 100 200 500 1K 2K 5K 10K 20K Measurement Circuit (Test Condition Vs=3V RL=2. 2K Ta=20°c R. H. =65%) FET impedance converter Term. 1 C Output RL ECM unit Shield case Term. 2 Gournd +Vs SPECIFICATIONS Element: Condenser Polar Pattern: Cardioid (Unidirectional) Frequency Response: 100Hz~13kHz Sensitivity: -40dB ±3dB(@1kHz, 74dB SPL) Impedance: 2. 2KOhms ohms ±30% @1kHz Cable Length: 43" (1092 mm) Dimensions: Headset: 5. 66" (144 mm) nominal at widest point; 4. 5" (114 mm) flexible boom, . 155" (3. 9 mm) diameter Weight: 1. 10 oz. (30. 8 grams) w/cable NADY SYSTEMS, Inc. 6701 Shellmound Street · Emeryville, California 94608 Phone: 510. 652. 2411 · Fax: 510. 652. 5075 www. nadywireless. com [. . . ]