NT$ 7,900
Home » Microphone » Wireless Microphone System » MIPRO AD-708 UHF 寬頻四頻道自動增益控制天線分配器
MIPRO AD-708 - UHF 寬頻四頻道自動增益控制天線分配器
MIPRO AD-708 UHF 寬頻四頻道自動增益控制天線分配器，專為多頻道無線麥克風與專業無線音訊系統所設計，可將兩組天線訊號穩定分配至最多四台無線接收機，大幅簡化天線架構，同時維持高度穩定的 RF 接收品質。對於舞台演出、會議系統、廣播製作、宗教場所與大型活動現場而言，AD-708 是建構多接收機系統時不可或缺的核心設備。
AD-708 支援 UHF 470 ~ 850 MHz 寬頻頻段，涵蓋目前主流無線麥克風與數位無線系統使用的頻率範圍，可靈活對應不同頻段規劃需求。其內建的 自動增益控制（AGC）電路，能即時偵測同軸電纜因長距離傳輸所造成的訊號衰減，並自動進行補償，確保各接收機端獲得一致且穩定的 RF 訊號強度，避免因天線距離不同而導致接收靈敏度不均。
在射頻設計上，AD-708 採用 超寬頻微帶增益補償架構，具備極低的內調失真（Intermodulation Distortion），可有效抑制多頻道同時運作時所產生的混頻干擾，特別適合高密度頻道配置的專業應用環境。這項特性在大型舞台或多支無線麥克風同時使用的情境下尤為關鍵，有助於維持乾淨、穩定且可預期的 RF 表現。
AD-708 亦支援 系統串接擴充，透過串接輸出可再連接其他天線分配器，建構更大規模的多接收機系統，而不需額外增加天線數量，進一步降低天線佈線的複雜度。輸入端同時提供 天線偏壓輸出，可直接為主動式天線或天線強波器供電，減少額外電源配置需求。
面板上的 LED 狀態指示燈，可即時顯示天線連線與系統運作狀態，讓工程人員能快速掌握現場 RF 架構是否正常運作。當搭配 MIPRO MPB-30 天線強波器使用時，AD-708 可協同補償長距離傳輸造成的訊號損耗，進一步提升整體系統的接收穩定度與可靠性。
產品特色
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支援 UHF 470 ~ 850 MHz 寬頻範圍，適用於多頻道無線接收系統
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兩組天線輸入，可穩定分配至四台接收機，並支援串接擴充
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內建自動增益控制（AGC），即時補償同軸電纜訊號衰減
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超寬頻微帶增益補償設計，具備極低內調失真與高穩定度
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有效抑制多頻道同時運作所產生的混頻干擾
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輸入端提供天線偏壓，可直接驅動主動式天線或強波器
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LED 指示燈即時監控天線連線與系統狀態
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可搭配 MPB-30 天線強波器，補償長距離傳輸損耗
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適合舞台演出、會議系統、廣播與大型活動使用
詳細規格
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型號：AD-708
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品名：UHF 寬頻四頻道自動增益控制天線分配器
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頻段：UHF 470 ~ 850 MHz
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增益：1 dB ± 1 dB
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系統阻抗：50 Ω
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輸入接頭：TNC × 2（具偏壓輸出）
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輸出接頭：
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TNC 天線訊號輸出 × 8
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TNC 串接輸出 × 2
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天線偏壓：DC 8.3 V / 230 mA（由輸入接頭提供）
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損耗補償：自動補償同軸電纜損耗
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電源供應：DC 12 ~ 15 V
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外接電源：AC 100 ~ 240 V 交換式電源供應器
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尺寸：420 × 44 × 164 mm（W × H × D）
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重量：約 1.5 kg
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Purchase FAQ
Q1. What is the inspection period?
According to the Consumer Protection Act, online purchases come with a 7-day inspection period starting from the delivery date. Please note that the "inspection period is not a trial period." The purpose is for you to inspect and review the product, not to use it. If you are unsatisfied after inspection, please do not open or use the product and follow the return procedures immediately. Returned products must be in complete packaging with all accessories, gifts, and original packaging intact. Any missing, damaged, or incomplete items may affect your return rights and restoration costs may be deducted.
Q2. How do I process a return or exchange?
If you wish to return a product, please ensure it is in complete, new condition with the original packaging undamaged. This includes the product itself, accessories, warranty card, original packaging, and all accompanying documents. If the product is damaged due to reasons attributable to you, we may not be able to process the return, or repair costs may be deducted from the refund. However, products with manufacturing defects are exempt and qualify for unconditional return or exchange.
Please contact us by phone or email within the inspection period, providing the reason for the return/exchange, current product condition, phone number, and pickup address. We will arrange the return within 3-5 business days.
Q3. How will I receive my refund, and how long does it take?
Refund methods and timelines vary by payment method:
Credit Card: After we receive the returned product, the refund will be credited to your credit card account within approximately 5-7 business days. Depending on your billing cycle, the refund may appear on your current or next statement. Please confirm with your credit card issuing bank.
Bank Transfer: Please contact service [at] digilog.tw with your complete bank details (bank name, branch name, bank code, account holder name, account number). We will arrange courier pickup of the returned product and transfer the refund to your designated account within 5-7 business days.
Q4. Do I need to pay for shipping when sending products for repair?
Round-trip shipping costs for product repairs are the customer's responsibility.
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