TN228 倒V短波宽带收发信天线(2MHz~30MHz)使用说明书
Channel Master CM3000HD 出色的室内外360°信号接收天线用户指南说明书
enna™CM3000HD Outdoor & Indoor 360° Signal Reception AntennaCM-3000HD360˚TV SIGNAL RECEPTION Product Overview The Channel Master CM3000HD is a unique newdigital HDTV antenna designed for indoor or outdoor installations. It is engineered to be easy to install in any location to meet your needs. Every antenna is made of the finest components to exceed consumer expectations. That means peace of mind for years to come.Product Features•Designed for both indoor and outdoor installations •Excellent for HDTV reception•Easy installation indoors or outdoors•Omni directional performance•UV stabilized plastics and weather resistant design •Can be painted to match the décor of your homePackage Contents and Accessories1.Antenna Unit2.Four Table top feet for indoor use3.Four (10 mm) self-tapping screws for attaching the feetto the antenna unit4.Mast/Wall mount for outdoor use5.Four (55 mm) self-tapping screws for wall mounting6.Two U-bolts and four butterfly nuts for mast mounting7.Two (15mm) self-tapping screws for attaching theoutdoor metal mount to the antenna unit.8.Two (10mm) round head square neck screws foroutdoor metal mount9.Connector weather boot10.90 degree F-type adapterWARNING AND SAFETY INFORMATIONPlease read this user's manual before operating this product. The information contained in this document is subject to change without notice. Features orspecifications may be different depending on the type of product model purchased.WATCH FOR WIRES!READ INSTRUCTIONSYou can be KILLED if this antenna comes nearelectric power lines!Follow These Procedures for theSafest Installation1.Perform as much antenna assembly on the ground aspossible.2.Watch out for overhead power lines. Check thedistance to the power lines before you start installing.WE RECOMMEND YOU STAY A MINIMUM OF TWICE THE MAXIMUM LENGTH OF THE ANTENNA ASSEMBLY AWAY FROM ALL POWER LINES.3.Do not use a metal ladder.4.Remember, even the slightest touch of an antenna toa power line can cause a fatal shock.5.Do NOT try to do the job on a windy day.6.Have a friend as a spotter when you’re on the roof.They can see things you can’t.7.If you start to drop an antenna, move away from itand let it fall.8.If any part of the antenna should come into contactwith a power line CALL YOUR LOCAL POWERCOMPANY! DO NOT TRY TO REMOVE IT YOURSELF! They will remove it safely.9.Mast, lead-in, and metal guy wires are excellentconductors of electrical current - - keep them awayfrom power lines too.10.Be sure your family and friends understand the dangerof touching an overhead power line. Tell them never to try to remove any object in contact with a power line (TV antenna, mast or anything else).11.Make sure that the antenna mast assembly is properlygrounded.CM-3000HD Installation Instructions: Indoor Use, Table Top:1.Attach the plastic feet (Fig. 1) to the antenna unitusing the four (10 mm) screws provided.2.3.Connect the Fconnector from oneend of a coaxial jumperto the F connector onthe antenna. Connectthe F connector fromthe other end of acoaxial jumper to the Fconnector on the TV set or Set Top Box/DVR (Fig. 2). 4.Adjust the position of the antenna as necessary to getthe strongest signals.5.Installation is now complete.Outdoor Use, Wall Mounting:1.Assemble the metal mount (Fig. a) using the two (10mm) round head screws provided.2.Attach the metal mount (Fig. 3) to the antenna unitusing the two (15 mm) screws provided.3.Determine the location on the wall where the antenna8.See Operating Instructions on page 10.Outdoor Use, Mast Mounting:1.Assemble the metal mount (Fig. a) using the two (10mm) round head screws provided.2.Attach the metal mount to the antenna unit using thetwo 0.6” (15 mm) screws provided (Fig. 6).3.mast mount, install the mast on the house, preferably on the side of the house facing the TV stationtransmitters.4.Attach the antenna to the mast using the two U-boltsand four butterfly nuts provided (Fig. 7).cable to the CM3000HD.7.Attach the connector on the TV set end of the cableto the TV set or Set Top Box/DVR (Fig. 8).9.Installation is now complete.Operating Instructions:For best reception, please consider the following conditions:1.Keep the antenna away from sources of interference,including air conditioners, microwave ovens, hairdryers, etc. These are all sources of strong electricalinterference, and can cause poor quality or total loss of TV signals.2.Place the antenna near a window, preferably on theside of the house facing the TV station transmitters,when installing the antenna indoors.3.Install the antenna as high as possible, and preferablywith a clear path between the antenna and the TVstation transmitters. Trees, buildings, mountains, etc.,can all impact the performance of any antenna. Features and Technical Data forthe SMARTenna•Designed for reception of HD digital TV signals•Can be wall mounted, mast mounted or placed horizontally on a counter top.•Frequency Range: 174-216 MHz, 470-700 MHz •Gain: VHF/UHF 5 - 8 dB Min•Impedance: 75ΩCustomizing Your SMARTennaThe Channel Master SMARTenna can be paintedto match your home décor. Metallic or conductive paint cannot be used to paint the antenna as it may cause signal degradation. Channel Master cannot guarantee the antenna performance if these types of paints are used. Do not paint over the F connector on the antenna.。
完全天线手册
完全天线手册把高频电能变为电磁场能量或把电磁场能变为高频电能的装置称为天线。
天线有各种各样的形式，如直线导线、环形导线等构成的线天线和由金属板或金属网构成的面天线。
按用途，天线可分为发射和接收两大类。
天线的作用就是把发射机末级回路的高频电流变换成电磁波并向特定的方向发射出去。
接收天线则是把以自由空间为传媒的电磁波还原为高频电流经馈线送入接收机。
由此可见，天线的作用就是在高频电流和电磁波之间进行能量转换。
因此，从理论上讲，发射天线可以当作接收天线使用，接收天线也可以充当发射天线使用。
目前，用于接收卫星电视广播的天线有：螺旋天线（用于接收L波段电视广播）、抛物面天线（前馈型。
常用于接收C波段、Ku波段卫星电视广播的正馈、偏馈天线）、卡塞格伦天线（后馈）、平板天线等。
天线的主要特征参数有：1、方向图、主瓣宽度与副瓣电平；2、增益；3、极化；4、电压驻波比；5、频带宽度；6、噪声温度；7、效率等。
工程上常用这些参量来衡量天线的技术特征。
接收卫星电视广播要求接收天线具有高增益、高效率、低噪声、宽频带、天线指向调整范围宽等特性。
电波：在讲天线之前，不能不先提一提电波。
我们制作天线的目的是为了捕捉电波，因此，在考虑天线的问题之前，绝对有必要先研究一下电波的问题。
电波传播，主要有三种途径：●直接波: 这是指从发射天线到接收天线之间，不经过任何发射，直接到达，电波就象一束光一样，所以有人称它为视线传播。
视线传播这个名字也表明了这种传播方式能够传播的距离不远。
这有两个原因，首先是电波从发射点出发，其能量是以幂级数递减的，而接收机要能良好地解调出广播，需要一定的信号强度。
所以太远的地方，信号太弱，不足以解调。
如果只是这个原因，那么拼命提高发射功率或增加接收天线的增益，也许就可以扩大收听的范围了。
但是，还有一个重要的问题是，地球是圆的，在地球上任何一点发出的电波，按直线前进的方向，最终将离开地球射向天空。
主要是由于第二个原因，一般地讲，地面上一个发射台发出的直线波，只能传播到70km远处地面上的接收处。
824-2170MHz 灵活天线产品规格说明书
Molex 2072350100 824-2170MHz FLEXIBLE ANTENNA MODULE 3D VIEW
REVISION: ECR/ECN INFORMATION:
A
EC No: 174969
DATE: 2018/05/02
TITLE:
824-2170MHz Flexible Antenna Product Specification
PRODUCT SPECIFICATION
3.0 APPLICABLE DOCUMENTS
Document Sale Drawing(SD) Application Guide(AS) Packing Drawing(PK)
Number SD-2072350100 AS-2072350100 PK-2072350100
CREATED / REVISED BY:
CHECKED BY:
APPROVED BY:
Kang Cheng 2018/05/02 Cooper Zhou 2018/05/02 Stary Song 2018/05/02
TEMPLATE FILENAME: PRODUCT_SPEC[SIZE_A4](V.1).DOC
REVISION: ECR/ECN INFORMATION:
A
EC No: 174969
DATE: 2018/05/02
TITLE:
824-2170MHz Flexible Antenna Product Specification
SHEET No.
1 of 8
DOCUMENT NUMBER:
PS-2072350100
0dBi
Average Total
短波接收天线简介及维护方法
【 摘
要 】文章详 细 阐述 了短 波接 收天线 的分类 、性 能 ，并结合 实际工作 ，说 明 了短 波接 收天 线的 日常及
周 期性 的维 护方 法 。
【 关键词 】短 波天线 分 类 维护
ｌ 前 言
天线是无线 通信系统 的重要 设备之一 。不同的天 线有不 同的辐射 方 向图、极化 方 向、增 益以及阻抗等
垂直 笼形天线 属于不对称 垂直接地 天线 ，有 天线 底部 和 地之 间馈 电 ，其 特性 阻抗
一
般为 ７ ５（ ，为 了减 少地 电流所
引起 的 损耗 ，常 在地 下 铺设 以 杆
为 中心 ，半径 ｌ 左右 的辐射 状 ｍ ０
地 网。
这 种 天线 在水 平面 内是 无 方
至接收机
作者简介 ：高志恒 家， 播 电影 电视总局西安监测台 台 长 ¨ 程师 ［
第 ２期
短 波 接 收 天 线 简 介 及 维 护 方 法
由于 这种天 线的增益 系数 和方 向系数都很差 ，是
一
杆 顶
种 弱 定 向天线 ，适 合于 近距 离接 收 。
２ ２笼形 天线 ．
２ ３ 菱形天线 ．
菱形 天线是一种 行波天线 ，它在短 波通信 中使 用 最为广 泛 。菱形 天线的形式很 多 ，其基 本形 式是 由导
线 构成 一 个水 平 菱 形悬 挂在 四个 支柱 上 ，由菱 形 的
前 比较 常用的短 波 天线有 水平笼 形 （ 支笼 、 角笼 ） 分 天线 、对数螺旋天线 等 ，这些 天线都 有着各 自的优缺
点和 适用 范 围。
几项重要 的参数指标 。从 辐射方 向图来分 ，有全 向辐
射天线和 定 向辐射天线 ，表示 了天线 的方向性 。而极
TN228 倒V短波宽带收发信天线(2MHz~30MHz)使用说明书
指标名称
技术指标
单位
备注
1
工作频率
2.0 ～ 30
MHz
2
增益
5
dB
平均
3
电压驻波比
2.0:1
- -
平均
4
标称阻抗
50 / 600
Ω
5
辐射模式
高、低仰角
- -
6
方向性
全向
- -
弱全向
7
极化方式
垂直+水平- -8方源自图垂直圆+水平椭圆
- -
9
通信距离
0 ～1000
Km
典型值，400W
二、主要指标
三、天线图及方向图
短波宽带收发信天线一天线概述天线采用独特的三线偶极结构损耗小辐射效率高全频带内保持低驻波比克服了普通宽带双极天线重心偏斜随风摇摆易损坏的缺点保证通信效果的稳定适应于不同用途
TN228倒V短波宽带收发信天线
一、天线概述
倒V天线采用独特的三线偶极结构,损耗小,辐射效率高,全频带内保持低驻波比,克服了普通宽带双极天线重心偏斜、随风摇摆、易损坏的缺点,保证通信效果的稳定,适应于不同用途。天线具有平拉和倒‘V’两种架设方式。倒V天线增益和效率显著高于宽带双极天线。
【新品情报站】短波远程切换开关覆盖1.8至30MHz，同时支持4根天线
【新品情报站】短波远程切换开关覆盖1.8至30MHz，同时支持4根天线新产品 MFJ-4713这款MFJ-4713 HF 4位远程天线开关可让您在四根天线之间进行远程切换。
覆盖1.8至30 MHz。
将一根同轴电缆从室内开关盒延伸到天线杆或塔架上或天线所在的位置的室外控制盒。
然后，只需将一根同轴跳线从室内开关盒连接到收发器即可。
绿色LED会显示已选择的四个天线中的哪一个。
两个单元上均配有方便的安装孔。
优质的SO-239连接器，接地片。
室外控制箱为5Wx4.25Hx1.75D英寸。
从机柜突出的金属安装板为2英寸乘2.75英寸。
室内开关盒为3.75Wx2.75Hx1.5D英寸。
它从机柜伸出的安装边只有0.25英寸乘3.75英寸。
关闭位置。
将12VDC或110VAC与可选MFJ-1312D电源一起使用。
此产品正在生产中。
【新品推介】遥控在手，干扰远离我｜HG-1便携式远程磁环天线调谐器【火腿DIY】天线遥控切断器丨俺滴电台再也不怕雷劈了，神器！【新品情报站】与FTDX10系列新兼容，八重洲公司发布网络远程控制系统LAN单元“ SCU-LAN10”最新软件版本【新品情报站】远程HTML5收发信机，python服务器+树莓派【新品情报站】蓝牙可以传输32公里？Apptricity新型超远程蓝牙信标【无线电史话】1970年载波电流远程HiFi扬声器，附：原理图【新品推介】遥控在手，干扰远离我｜HG-1便携式远程磁环天线调谐器【新品情报站】高端电台也玩远程控制 | 八重洲旗舰电台发布远程网络控制单元【新品推介】提升远程操控电台体验感丨ORB电台控制设备：便携式在线远程基础解决方案。
天调套件说明书V2
手动天调套件说明书V2天调可以将原来不谐振的天线，通过加入适当的电感或电容，使电台能正常工作。
可以将原来是谐振的天线，但由于受外界的影响，使有了变化的天线的SWR加以修正。
可以作为带通滤波器，发射时可以减少不必要的带外辐射，接收时又可以减少带外的交叉调制和干扰。
本天调套件自带驻波指示、采用T型拓扑网络，工作在短波1-30MHz，可承受15W的发射功率，调谐范围约40-300欧，能非常方便的进行QRP通信，确保进行高效率的无线电收发通信，同时也能让您充分享受DIY的乐趣。
本套件包括原件如下：类别 名称 数量机壳 防水密封盒（孔已经打好） 1个 贴纸（需要自行裁剪） 1张 M座 2个 普通电线 1段 M3沉头螺钉 8个 M3螺母 8个 M3垫片（用于M头接地） 12个可变电容 可变电容 2个 小旋钮 2个 M2.5沉头螺钉（用于固定可变电容） 4个 M2.5圆头螺钉（用于固定可变电容的旋钮） 2个 M3平垫片 2个 M3 螺母 2个多刀开关 多刀开关（12个档位） 1个 大旋钮 1个 T106-2 磁环（红色） 1个 0.5 漆包线 1段电路板 电路板（驻波指示器） 1块 档位开关 1个 红色发光二极管 1个 51欧 电阻 3个 FT37-43 磁环（黑色） 1个 1K 电阻（用于发光二极管限流） 1个 1N60二极管 1个 0.1uF电容 1个一、原理图动手制作之前，请仔细查阅这张图。
1、电路图如下：二、制作过程1、制作之前，请准备好烙铁、焊锡丝、剪刀、小刀、万用表等工具。
并根据原件表核对原件。
2、去除外壳内部多余塑料柱，位于下图的下方，建意先使用斜口钳子将塑料柱去剪掉，再使用电烙铁将多余部分烫平（注意不要烫太长时间，防止将整个塑料烫化，影响正面效果）。
3、安装两个M头到机壳。
安装过程中需要注意6个垫片的位置，它们的作用是理好的接地连接。
4、裁剪贴纸，贴于壳上。
效果图如下：两侧文字部分需要裁剪：5、安装可变电容及旋钮到外壳。
MARUWA MWSL1204 GPS L1 活动天线说明书
1.ScopeThis specification applies to the MARUWA MWSL1204 GPS L1 active antenna, which in addition to the basic MWSL1204 form can be supplied in two optional forms: MWSL1204R supplied with a loosely fitting black radome cap/cover for external use and MWSL1204SB supplied with a loosely fitting plastic sleeve for internal use.2.SpecificationsMinimum Typical Maximum UnitPart Number MWSL1204 (MARUWA dwg No: MEFP12040268140101)Type Dielectric-loaded Quadrifilar HelixConnector Type Refer to embedding information / connection diagramsFrequency 1573.421575.421577.42MHzPolarisation Right-hand Circular PolarisedVoltage (+ve to co-ax centre-wire). 1.83 3.6VCurrent 3.1 3.4 3.9mAGain (no ground-plane)+15+16dBic at zenithBeamwidth >115DegreesBandwidth (3dB)15MHzAxial Ratio <2.0at zenithVSWR <2.0:1 2.3:1Impedance 50OhmsNoise Figure 0.80.9dBInput 3rd Order Intercept Point -7dBmOperating Temperature -40+20+85°C Overall Dimensions Refer to mechanical drawings mmWeight (excl radome or sleeve)7.0grams3.DimensionsBasic MWSL1204 form:Rev.Date Description Approved Checked PreparedO.Leisten K.Inagaki F.Frimpong 0103 Feb. 2015Issue of the first edition Product Specification (Preliminary)MARUWA Antenna ProductsDocument №MEPS-12040042150101MWSL1204Notes:1.MARUWA Europe assembly drawingMEFP12040268140101 applies.2. Units in mm.3. For connection layout and pad-size, through-hole and connector details please refer to padlayout and designation definitions.MWSL1204R form with loosely fitting black radome cap.MWSL1204SB form with loosely fitting translucent sleeve.Rev.Date Description Approved Checked PreparedK.Inagaki F.Frimpong O.Leisten 0103 Feb. 2015Issue of the first edition Notes:1.MARUWA Europe assembly drawingMEFP1204R268140101 applies.2. Units in mm.3. Black cap/radome unit: METC120X0158140101shown fitted but actually shipped separately.4. For connection layout and pad-size, through-hole and connector details please refer to padlayout and designation definitions.Notes:1.MARUWA Europe assembly drawingMEFP1204S278140101 applies.2. Units in mm.3. Translucent sleeveunit: METC120X0198140101shown fitted but actually shipped separately.4. For connection layout and pad-size, through-hole and connector details please refer to padlayout and designation definitions.4.Product DescriptionTypical Gain PatternThe MWSL1204 GPS L1 miniature high-gain active dielectric-loaded antenna uses MARUWA’sdistinctive materials technology to provide unrivalled circularly-polarised gain from a uniquely small volume. It enables excellent GPS performance in tightly integrated devices that require good positional accuracy.By combining a high-quality dielectric antenna with a high-performance low-noise amplifier the MWSL1204 active antenna provides an excellent solution wanting an active gain input.The MWSL1204 antenna has a sharp filtering response and is particularly suitable for applications where:*The device is hand-held, body-worn, or otherwise surrounded by materials of high relative dielectric-constant which would de-tune other antennas.* The antenna is installed in close proximity to other antennas sharing the same device housing and ground-plane: for example Bluetooth®, WiFi, LTE,WiMax and other cellular radio antennas.* The antenna must fit into a very small installation volume with close proximity to other components and little or no space available for a ground-plane.* The GPS receiver requires 20dB or more of input pre-amplification.* The device is noisy and requires low-noise front-end amplification to achieve the required GPS sensitivity.* Excellent performance with extremely low power consumption.* The orientation of the device is random.* The antenna must be embedded into the device.The MWSL1204 antenna is balanced, which isolates it from the device ground enabling it to reject common-mode noise present on the device ground-plane. The construction and materials of the antenna constrain its near-field region to occupy a very small volume so that materials near theantenna cause negligible de-tuning effects. Therefore the antenna maintains its pattern and efficiency in the presence of dielectric loading. The MARUWA MWSL1204 dielectric-loaded antenna also has a useful filtering fuction as the antenna strongly attenuates signals from the cellular and ISM frequency bands.-96-90-84-10-5051015200611172328343945515662687379849096101107113118124129135141146152158163169174180186191197203208214219225231236242248253287293298304309315321326332338343349354Azimuth Gain (G φ) for Elevation (θ)Low Noise Amplifier Characteristics.Wide-band Frequency ResponseAntenna Integration Options Pad Number Function 1Ground 2RF Out, DC In 3GroundDimensions mm 0.1A 5.0B 2.1C 5.75D 2.8E 4.0F 6.2G3.3H9.5J3.1K 3.0Pad Layout and Pad DesignationsRev.Date Description Approved Checked PreparedK.Inagaki F.Frimpong O.Leisten 0103 Feb. 2015Issue of the first edition MWSL1204 antennas may be mounted externally (order MWSL1204R version) orembedded within a device (order MWSL1204SB version). The product is designed to tuneto the correct frequency when the sleeve or radome-cap is fitted. In thecase of externalmounting the device housing should be designed to seal around the radome-cap groove inorder to provide mechanical support. When internally mounted the sleeve should befitted and the antenna can be fitted into a corner cut-out in the device PCB. Adjacentmetal ground-surfaces (PCB ground-layers or screening cans) can uplift the radiationefficiency compared with the antenna operating separately in free-space. For optimumperformance the gap between the antenna and the copper edge of the PCB ground-planeshould be greater than 5mm. MARUWA can provide application notes with integrationguidance. Please contact your MARUWA sales representative for this information.123AC C B DE D EF HJ KGOrdering Guide for the MWSL1204 AntennaMaruwa can supply three options. Please order according the the following table:Please note that when MWSL1204R or MWSL1204SB are ordered the radome or sleeve parts shall be deliveredin separate packaging and will not be fitted to the MWSL1204 product. The radome and sleeve parts are designed to fit loosely.5.Notes1. The contents of this document assure the characteristics and quality of the antenna components themselves.2. Please ensure that they work correctly in the installed configuration and method of use of your equipment.。
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一、天线概述
倒V天线采用独特的三线偶极结构,损耗小,辐射效率高,全频带内保持低驻波比,克服了普通宽带双极天线重心偏斜、随风摇摆、易损坏的缺点,保证通信效果的稳定,适应于不同用途。天线具有平拉和倒‘V’两种架设方式。倒V天线增益和效率显著高于宽带双极天线。
序号
指标名称
技术指标
单位
备注
1
工作频率
2.0 ～ 30
MHz
2
增益
5
dB
平均
3
电压驻波比
2.0:1
- -
平均
4
标称阻抗
50 / 600
Ω
5
辐射模式
高、低仰角
弱全向
7
极化方式
垂直+水平
- -
8
方向图
垂直圆+水平椭圆
- -
9
通信距离
0 ～1000
Km
典型值，400W
二、主要指标
三、天线图及方向图