First, take the radio, or the control head part anyway, and sit in the car with it. The j is the best antenna for flatlanders giving the user the most signal distance possible. Wire antennas for ham radio sun country amateur radio society. This is due to the exceptional low main lobe, nearly flat, angle of radiation of about degrees. Install assembled antenna on mounting bracket and set the bottom dimension a, from table in fig.
Home uncategorized elk antennas 2m440l5 dualband antenna. Installing wire antennas in trees ham radio antenna, ham. Dual band 2m70cm 100w nmo vhfuhf ham amateur car mobile radio antenna. Ham radio vhfuhf mobile installation by mike baker, w8cm. To evaluate a vhfuhf antenna on a car, we only need to look at the horizontal aziyour 2 meter mobile antenna whats the best mounting location. Using a satellite dish jpipe mount to support a vhfuhf antenna.
While searching the web i came across some cheap yagis hdtv antenna, which claim to operate from 45 to 860mhz, have a 150 miles range 2238db gain and come with a rotator. Wire antennas for ham radio sun country amateur radio. Therefore, when we talk about the design of antennas it is customary to talk about the transmitting antenna only, because it is understood that the receiving antenna can be exactly the same. But when erected as an invertedv you gain a couple of spoints 10 12db in the. Mar 21, 2017 short video about how to build and deploy a 20 ft. A vhfuhf dualband jpole searching for an inexpensive, highperformance dualband base antenna for vhf and uhf. While there are plenty of high performance antenna designs. The 58 wave antenna is advertised as having 3 db gain. Antenna height and communications effectiveness by r. We have provided you some guidelines for mobile antenna selection. The more common antennas have much higher radiation angles that may be good for highmountain top.
Suggest dsub 9 pin female for antennas, a dsub 9 male for bcd inputs, rca jack for ptttx. Heres how i shaved the price and provided fourband operation. Antenna mounts for yagi, panel, omnidirectional antennas. Hustler 5btv 5band hf vertical antenna and dxe installation guide packages are trappedvertical antennas that provide an omnidirectional pattern. All amateur radiorelated projects, tips, tricks, and tools. View and download hygain ham iv instruction manual online. I have my students build these in addition to our dual band and uhf antennas. Kb9vbr jpole antennas are highly effective, affordable antennas for the vhf and uhf frequency spectrum. The installation pdf file for this vertical antenna can be downloaded from this page. Our ham has hidden his antenna by placing it under the shingles, and along the ridge vent. Mounting pipe 9 concrete or no concrete that is the question 10 coaxial cable to mounting pipe 11 chapter 4 some really good information get the best performance from your new quarterwave vertical antenna 11 some brief words on ground mounting, elevated mounting, and radial wires 12 how to put radial wires down without digging. Manufactures antennas, swr meters and power supplies primarily for the amateur radio market.
Broadcast satellite dbs dish antennas to residential structures are ideal for supporting small amateur. This affects the mounting location, and hence the selection of the antenna gain. Many plastic and metal products are available on ebay and amazon. The antenna comes in two flavors, ham and commercial. The well is lined with brick and has the mounting for the pole and an auto tuner wrapped in a trash bag tuner is waterproof.
Hf antennas especially stealth models for those in an hoa by dave land. With the new trend of aerodynamic bumpers for improved mpg efficiency, antenna mounting has become a real. Anytone at 778uv a great budget minded ham rig duration. In this manual, we will discuss the outdoor tv antenna. Mfj enterprises inc,ameritron,hygain,hygain,cushcraft,vectronics,mirage,mfj,mfj enterprises, antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier. If youre a good fly fisherman like sam in eastern kiribati, you can lob a line over any limb of choice with a fishing pole and reel. Kb9vbr jpole antennas amateur radio vhf and uhf antennas.
Browse our inventory of new, used, and vintage ham radio antennas for sale in addition to a great selection of amateur radio antenna parts and accessories avaiable at auction prices. The jpipe mounts commonly used for mounting direct. Amateur radio has grown from a few thousand hams prior to world war i to. This fiveband loftmounted antenna has been used at two locations with great results. Many antennas have been invented simply by necessity. With a few pointers you can be operating portable from campgrounds and having fun. Hand crafted in the usa since 2001 and thousands of satisfied customers nationwide. The antenna should be supported only by the lower 10 inches of the housing to avoid interaction between the matching stub and any nearby metal, such as an antenna or tower.
A tri band antenna for 2 meters, 220 mhz, and 70cm antenna. See attachments overall height43 feet foldover mount included max mounting mast size 2 inch outside. We carry leading brands such as diamond, wilson, firestik and more. It is a jpole type design and thus does not need radials or a ground. The ham version that i received was tuned to 144148 mhz and 440450 mhz. If you are an amateur radio enthusiast who uses a ham radio, youll be able to communicate with fellow ham radio operators or even report emergencies. One way to cut costs is to keep the antenna simple. If your antenna has a high frequency hf connector, use the. Using hdtv antenna for ham radio monday, 12 august 20 15.
Putting your first amateur station together can be an expensive proposition. Connectors and wire as appropriate for connecting the enclosure to external remote antenna switches. Standoffs for mounting the relays and raspberry pi above the mounting tray. I start with some general considerations and then describe my own rv station setup. Cheap yagi antennas for vhfuhf by kent britain, wa5vjb edited by john maca, ab5ss editors notes.
The hustler 4btv is a fourband trap vertical antenna providing an omni directional pattern. Jul 22, 20 in one brief article we cant cover every detail that you might want to think about in selecting a vhfuhf antenna for your home or shack, but lets hit a few important factors, including those that randy had to consider with his project. Reviews of various antennas and other ham equipment at. A ham radio antenna project with plans, pictures and parts list to help you build a fan dipole. This vertical is made to use a remote tuner at the base, with any length of coax needed to reach the shack. Vehicular radio installation a ham twoway radio is a. Nmohf mount in the high frequency configuration remove the center pin and insulator. Mar 04, 2018 dbj1 ham antenna by ed fong wb6iqn, dual band wire j pole, part 1 af5dn duration.
You can see that when erected in a straight line the dipole is quite directional. How to build several easy antennas for amateur radio. In strong winds, when trees move in contradictory directions and the only thing trying to hold them together is your antenna and its support ropes then kiss your antenna goodbye. For stealth applications suggest 18ga black wire from frys single band antenna when fed by coax works good for multibands when fed by open wire line and using a tuner. The antenna is light enough that hose clamps can be used for mounting. Amateur radio club, the villages, fl 32162 all ri ghts reserved. Mount near ground level run wire up to eve and isolate under eve of the house. For best performance, mount the antenna on a metal or aluminium roof in the center. For this reason, tree hung antenna installation requires careful consideration indeed, however, once conquered, theyre worth all the effort.
Tie a light string around a rock or cricket ball and toss it over a suitable tree limb. Multiband dipole i built a multiband dipole that will work and 10 meters for ham radio. The villages antenna guide villages amateur radio club. Electromagne2c wavepolariza2on electricandmagne2cwavesareat rightanglestoeachother magne2cwavedissipateswithina fewwavelengthsofantenna. Calculations for the wire lengths can build a multiband hf fan dipole. The j antenna goes back many years, long before i became a ham.
Hf antennas especially stealth models for those in an hoa by dave land kd5fx. Hall, k1td senior assistant technical editor and retired associate technical editor the purpose of this paper is to provide general information about communications effectiveness as related to the physical height of antennas. This horizontal slot antenna, cut into the reflector of a tv dish, is both the master of disguise and high in performance. Ed fong dbj1 dual band uhfvhf antenna assembly and. Sam recommends using lightweight monofilament fishing line or something similar as the first line up the tree. Never allow the mast on which a 4btv is mounted to extend above. Elk antennas 2m440l5 dualband antenna elk antennas. Vehicle antenna mounting my suv roofrail bracket solution.
Sep 15, 2002 this is a very heavy duty freestanding vertical. The well is filled with pea gravel for drainage, covered with lava rock and surrounded with flowers. Its actually pretuned to the desired frequency range. In fact, it is general practice to use the same antenna. You also have the option to narrow your search by antenna type, connector or mount. He told me that the reason why he selected my book over others was. Find many options of hf, mobile, and base antennas at walcott radio. The antennas described in this article were built as the result of several discussions between kent and a cuban radio operator. When selecting a mobile antenna, there are a number of factors that significantly affect the ultimate performance of the antenna. Aug 12, 20 home ham antennas using hdtv antenna for ham radio. Planning antenna systems for the little gun station. Your cb ham radio is only as strong as its antenna. Look for as many different places to mount it as you can think of. Hf antennas especially stealth models for those in an hoa.
Broadband operation over the entire ham band at very. Antenna rotator ham iv has 110 vac controller ham ivx has 220 vac. Best placement of a mobile antenna dont lopside your pattern. Build this novice fourband vertical basic amateur radio. Noisier than horizontal antennas easier to hide in antenna restricted areas can be disguised as flagpole or be a single wire in a tree. Dbj1 ham antenna by ed fong wb6iqn, dual band wire j pole, part 1 af5dn duration. Having both 2 meter and 70 cm bands in a compact, two foot long package, without having to bother with.
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