Unverified80% confidenceTradeoffTime unknown
全封闭防水套会造成对讲机天线信号被塑料膜和水汽衰减,接收灵敏度和发射距离均下降,对通信距离要求高的场景应优先选带外接天线接口的专用套或缩短通信半径预期
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified防水等级越高的密封主机,扬声器出音孔往往被封闭,报警分贝会衰减,IP67全密封机型报警音常低于75分贝,对听力衰退老人需搭配独立高分贝接收器77% similarUnverified防水等级越高机身开孔越少,往往通过牺牲被动辐射器面积或音腔调音换取密封性,高防护机型音质普遍偏保守75% similarUnverified全密封设计导致通话和外放音质有一定衰减,对音质敏感或频繁免提通话的用户需注意75% similarUnverified如主要问题是低频道路噪音,贴膜投入产出比极低;应优先升级密封条、加装隔音棉/吸音棉,或换装原厂夹胶玻璃,隔音膜只作为中高频的补充方案74% similarUnverified该产品具备一定隔音效果(降低环境噪音),但均压功能与隔音效果之间存在权衡:滤芯设计需保留气压传导通道,因此隔音量低于同类实心泡棉耳塞,追求强力隔音的用户会感到不足。73% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/773128API
curl https://kongchang.com/api/v1/knowledge/claims/773128MCP
get_claim(id=773128)