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href="#认识常用天线接头" class="header-anchor">#</a> 认识常用天线接头</h2> <p>新手常见的是 SMA 头和 M 头。SMA 头常用在对讲机上，M 头常用在车台和短波台上。其中 M 头又称 UHF 连接器、UHF 头。</p> <p>常见的业余机，例如 K6，机身是 SMA 公，天线是 SMA 母：</p> <p><img src="/img/0203/04_01_1_sma.jpg" alt="SMA公与SMA母"></p> <p>常见的车台和短波台，例如 UV 段的即时通 D9000、威诺 N7500，以及短波段的 IC-7300、FT-891、G90 等等，机身是 M 母，馈线要接 M 公头：</p> <p><img src="/img/0203/04_01_2_m.jpg" alt="M公与M母"></p> <p>吸盘 / 烟斗头 + 车载苗子组合，底座一般是 M 母，车载苗子一般是 M 公：</p> <p><img src="/img/0203/04_01_3_m-f.jpg" alt="M母"></p> <p><img src="/img/0203/04_01_4_m-m.jpg" alt="M公"></p> <p>不同接口的天线、馈线可以通过转接头把它们连接在一起，例如，可以给对讲机接个车载天线，或者功率不大时，拿个对讲机天线接车台上，先凑合用一下。</p> <p>打星的天线，上面可能是 M 母的座，那你就需要买一根，或者自己做一根，一面是 M 公头（与天线的 M 母座配合），另一头是 SMA 母头（与对讲机的 SMA 公座配合）的馈线。</p> <p>短波的各种天线，例如 GP、正倒 V 等，上面可能也是 M 母座，你需要买一根，或者自己做一根，两面都是 M 公头的馈线（因为天线和机器上都是 M 母的座）。</p> <p><img src="/img/0203/04_01_5_mmm.jpg" alt="M公馈线"></p> <p>配车载苗子，或者上短波，常使用 nanoVNA 来调节天线，尽量降低驻波比，nanoVNA 机身通常是 SMA 母头，需要用一个 SMA 公转 M 母的转接头来连接馈线：</p> <p><img src="/img/0203/04_01_6_nanovna.jpg" alt="nanoVNA与接头"></p> <p>使用转接头会产生一定的损耗，虽然不大，但是存在。如果你的动手能力较强，像馈线这种能定制的配件，你可以考虑把原来不合适的接头拆掉，再重新压一个合适的接头。</p> <h2 id="特殊接头"><a href="#特殊接头" class="header-anchor">#</a> 特殊接头</h2> <p>短波机中常见的 IC-705、X6100、X6200 是 BNC 母头插座。</p> <p>专业机，包括摩托罗拉、海能达、建伍，它们的接头常与业余机不同，例如海能达 HP780 的公母与业余机恰好相反。特别是摩托罗拉，同一品牌还有互不兼容的各种接头。如需购买配件，务必问清机器型号和接头型号。</p></div></div> <!----> <div class="page-edit"><!----> <!----> <!----></div> <div class="page-nav-wapper"><!----> <!----></div></div> <!----></main></div> <div class="footer"><div class="icons"><a href="mailto:contact@hamcq.cn" title="联系我们" target="_blank" class="iconfont icon-youjian"></a><a href="https://github.com/HamCQ/Handbook" title="Github" target="_blank" class="iconfont icon-github"></a><a href="https://www.zhihu.com/column/c_1327659699995885568" title="知乎" target="_blank" class="iconfont icon-zhihu"></a><a href="https://forum.hamcq.cn/d/826" title="微信公众号" target="_blank" class="iconfont icon-weixin"></a></div> 
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