Giới thiệu Micro không dây BBS E-250GS
Micro không dây BBS E-250GS là dòng micro không dây chuyên nghiệp được thiết kế chuyên dành cho karaoke gia đình cũng như kinh doanh. Sở dĩ nói như vậy là vì trước hết bởi khả năng tự ngắt khi đặt mic xuống: Micro sẽ tự động tắt tín hiệu sau 5 giây khi đặt micro xuống bàn và tự động hoạt động trở lại khi cầm micro lên. Sau 5 phút không sử dụng micro tự chuyển sang chế độ ngắt pin (không tốn pin nữa ). Sau 15 phút thì micro chuyển sang chế độ tắt toàn bộ. Để tắt và bật tính năng tự ngắt tiếng này bấm và giữ nút GS ở đuôi micro khoảng 3 giây. Trên màn hình sẽ hiện ON ( Bật chế độ tự ngắt thông minh) hoặc OFF ( Tắt chế độ tự ngắt thông minh).
Đặc điểm nổi bật
Micro không dây BBS E-250GS cũng kiểm soát tiếng hú/rít khá tốt với công nghệ nén dynamic. Ngoài ra, kiểu củ mic phân cực super cardioid rất phù hợp với môi trường karaoke bởi nó loại bỏ được phần lớn các tạp âm mà chỉ tập trung phát giọng hát của ca sỹ (khi mic được hướng thẳng vào miệng). Là dòng micro không dây BBS cao cấp.
Tính năng tự động dò tìm sóng phù hợp “sóng sạch”, tránh được tình trạng nhiễu sóng. Phạm vi lựa chọn tần số với 200 kênh UHF ( 745MHz - 785MHz ). Micro được thiết kế đặc biệt cho các ứng dụng như biểu diễn , sự kiện trực tiếp , Karaoke chuyên nghiệp.
Thông số kỹ thuật
Bộ thu tín hiệu
Khoảng tần số có thể chọn lựa: 792.5MHz - 817.375MHz
Số kênh: 200
Practical Sensitivity Input 6dBuV – 10dBuV time, S / N > 80dB
Tính ổn định của tần số: ± 0.005% (-10 ℃ ~ 50 ℃)
Độ lệch cực đại: ± 48KHz
Tỷ lệ S/N > 105dB (1KHz-A)
Độ nhiễu âm THD <0.5% @ 1KHz
Điện thế đầu ra: 12dBV ~ 15dBv
Trở kháng đầu ra: 2.2 KΩ
Cổng ra không cân bằng: TRS 6.3mm
Màn hình LCD & hệ thống đèn LED
Nguồn điện: 12V DC – 1.25A
Kích thước (mm): 420 (rộng) X 44 (cao) X 138 (sâu)
Trọng lượng: 1.35kg
Tay mic BBS E-250GS
Khoảng tần số có thể chọn lựa: 792.5MHz - 817.375MHz
Số kênh: 200
Tần số đáp ứng: 50Hz ~ 18KHz
Công suất đầu ra: ≦ 50mW
Điều hòa bức xạ: <-60dBc
Độ lệch cực đại: ± 48KHz
Màn hình LCD và màu sắc thể hiện độ động của cuộn dây côn (OK-40 +40 A, OK -40 +40 B, OK-40 + X40-2900)
Pin NiMH có thể sạc lại
Trọng lượng: 298g
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Common Materials Applied to Houses and Businesses Near the Ocean
Residences and commercial buildings at the seaside, especially in locations like NC and Wilmington, face unique climatic issues that impact the longevity and effectiveness of roofing materials. Picking the right materials can significantly affect the lifespan of coverings in these areas.
Asphalt Shingles
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For instance A resident in coastal NC notices that some bitumen shingles have torn off after a recent storm. The perpetual exposure to saline atmosphere has additionally caused particle erosion, requiring regular fixes.
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Steel roofing is recognized for its strength and ability to resist severe conditions. This renders it a favored option for coastal areas. However, the ongoing exposure to saline atmosphere can lead to corrosion, especially if the steel is not properly coated. Frequent upkeep is essential to avert corrosion and extend its lifespan.
As a situation in point A homeowner near the ocean in Wilmington, NC opts for steel roofing for their property. Over time, they notice signs of rust due to the salty air. Ongoing examinations and protection are needed to maintain the covering's quality.
Terracotta and Cement Tiles
Clay and concrete tiles offer excellent durability and are resilient to salty air, rendering them suitable for oceanfront properties. However, they are weighty and require a robust framework. Furthermore, they are often pricier than other materials and may crack under pressure.
For instance One homeowner by the ocean chooses clay tiles for their residence. The materials resist the saline atmosphere well, yet following a major tempest, several tiles break and require fixing, leading to extra expenses.
Composite Roofing
Synthetic roofing substances including rubber, PVC, or polymer blends are gaining popularity due to their strength and resistance to weather elements. They are frequently manufactured to imitate the appearance of authentic options, including slate, wood, or clay. Still, the initial cost may be elevated than traditional materials, and various property owners might have worries about the synthetic look.
For the purpose of example A inhabitant in coastal North Carolina selects composite roofing to obtain the appearance of slate without the heaviness. The artificial option demonstrates longevity against ocean breeze and extreme climates, but the primary expense is substantial, requiring a longer time to regain via reduced maintenance.
Selecting the proper substances for properties and commercial buildings near the ocean is essential for maintaining longevity and minimizing maintenance costs in areas like North Carolina and Wilmington.
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