【新品推介】AV-640 短波垂直天线 | 8波段一网打尽(40/30/20/17/15/12/10/6 M)
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AV-640 HF VERTICAL, 8 BANDS-40/30/20/17/15/12/10/6 M
AV-640短波垂直天线,支持40/30/20/17/15/12/10/6 M八个波段
Photo:K3RF
BG5WKP 朱轶 编译
Hy-Gains new AV-640 Patriot HF vertical is the best built, best performing and best priced multiband vertical available today. Make full use of your sunspot cycle with the Patriots low angle signal. The AV-640 uses quarter wave stubs on 6, 10, 12, and 17 meters and efficient end loading coil and capacity hats on 15, 20, 30, 40 meters. Instead of typical lossy can traps, the AV-640 resonators are placed in parallel not in series. End loading of the lower HF bands allows efficient operation with a manageable antenna height.
Hy-Gains公司最新款 AV-640爱国者短波垂直天线是目前市面上最易于安装、性价比最高的多波段垂直天线。爱国者产品低角度信号充分利用太阳黑子周期。AV-640是四分之一波长垂直天线,通过底部加感线圈,可在6米、10米、12米和17米段使用,同时能覆盖15米、20米、30米、40米通联范围。有别于使用陷波器来克服典型的损耗, AV-640的谐振器是并联安装而不是串联安装。末端加载更低的短波波段允许天线使用可操作的高度来进行高效的通联。
No Ground or Radials Needed
无需接地或安装地网
Effective counterpoise replaces radials
使用高效平衡器取代地网
End fed with broadband matching unit
末端反馈带宽匹配单元
Automatic Bandswitching
自动波段调整
Single coax cable feed
单同轴电缆反馈
Each band is individually tunable
每个波段单独可调
Wide VSWR bandwidth
宽电压驻波比带宽
Sleek and low-profile
平滑且低剖面积
Low wind surface area
低受风面积
Small area required for mounting
仅需要很小的面积就能安装
Mounts easily on decks, roofs, and patios
很容易在甲板上,屋顶和院子里安装
Built to Last
可永久安装固定
(有本管理类的书《基业长青》英文名"Built to Last",此处小编翻译成可永久安装固定)
High wind survival
抗风性能强
Matching unit made from all Teflon(R) insulated wire
所有的连接单元都由特氟龙绝缘线制造
Hy-Gain Warranty
Hy-Gain质量保证书
Two year limited warranty
至少两年质保
All replacement parts in stock
所有的可替换零件都有库存
$ 449.95
价格449.95美金
source:http://qrznow.com/av-640-hf-vertical-8-bands-403020171512106-m/
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