德生（Tecsun）PL-990 全波段数字调谐收音机

评测依据

• review_count：12500
• rating_avg：4.8
• brand_reputation：0
• merchant_count：0
• price_range：[0,999]
• dimension：performance
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 02:56:41","to":"2026-06-26 02:56:41"}
• intros：{"brand_intro":"德生（Tecsun）是中国知名的收音机品牌，成立于1994年，总部位于广东东莞。公司专注于收音机研发与生产，以\"让每个人都能享受无线电乐趣\"为使命，产品覆盖全波段、数字调谐、蓝牙音箱等类型。德生凭借高灵敏度、低噪声和耐用性，在国内外无线电爱好者中享有盛誉，多次获得行业创新奖项，被誉为\"中国收音机第一品牌\"。","product_intro":"德生PL-990是一款旗舰级全波段数字调谐收音机，支持FM/SW/LW/航空波段，采用DSP芯片与同步检波技术，信号接收稳定清晰。内置蓝牙5.0，可连接手机播放音乐；配备2.5mm耳机接口、USB充电及录音功能。机身小巧便携，支持自动关机（1-120分钟可调），适合户外、旅行及家庭使用。","key_specs":["频率范围：FM 87-108MHz / SW 1711-29999kHz / LW 153-513kHz","调谐方式：数字PLL合成调谐","自动关机：1-120分钟可调","电池：3节AA电池或USB供电","尺寸：188×116×31mm","重量：约380g（含电池）"]}
• alt_products：[{"product_name":"德生（Tecsun）PL-990 全波段数字调谐收音机","brand":"德生","model":"PL-990","price":698},{"product_name":"熊猫（PANDA）T-09 全波段数字调谐收音机","brand":"熊猫","model":"T-09","price":299},{"product_name":"索尼（SONY）ICF-506 全波段数字调谐收音机","brand":"索尼","model":"ICF-506","price":549}]
• kol_quotes：["无线电发烧友'老李'：PL-990的同步检波技术让短波收听体验提升了一个档次。","数码博主'科技狗'：自动关机功能很贴心，晚上听广播不怕忘关。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":92.89999999999999,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞PL-990的接收灵敏度极高，尤其在弱信号环境下表现优异。自动关机功能实用，适合睡前收听。蓝牙连接稳定，音质清晰。部分用户指出旋钮手感略紧，但整体做工扎实。京东好评率98%，多数评价认为性价比高，是专业收音机爱好者的首选。","source_count":2}},{"source":"objective","score":96,"weight":0.5,"confidence":0.7,"details":{"dimension":"performance","rating_avg":4.8,"review_count":12500,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":96,"weight":0.15,"confidence":1,"details":{"rating_avg":4.8,"review_count":12500,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.15,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["无线电发烧友'老李'：PL-990的同步检波技术让短波收听体验提升了一个档次。","数码博主'科技狗'：自动关机功能很贴心，晚上听广播不怕忘关。"]}}]
• method_version：v2
• search_visual：null