If not, they come to about 5 for the air-wound choke model, or about 10 if you go for the ferrite choke model. 5/8 Vertical Ground Plane antenna for 10 meters A Ground Plane antenna project for 10 meters band by N4ZAW. This enhanced model is tuned specifically for the 10m amateur band and also adopts a ferrite choke, which is an improved option over the air-wound choke which is also shown in the build. some have used, to keep from buying the coil form, is to drill a hole in Idale pour le 28 MHz QRP ( 10 watts maximum ), parfaite pour le trafic en portable par sa facilit dimplantation.http://www.roue-libre.be/article.php3?id_article=76, Creation date : 14/08/2007 @ 18:27 Bar. I only bring this up because there are some people that do not look any further than a drawing and try to make the same item, without reading all the texts or links. shop bought in this case is cheaper. Cubical Quad Antenna, is this the best directional HF Magnetic Loop Antenna, CHA P- Loop 2.0, Ham Radio-80/160 meter magnetic loop antenna. 0000003445 00000 n Safety!Ask The small ground plane was another scratch build out of a need for a scanner antenna. Construction The construction is very simple and took As far as a the small homebrew scanner ground plane you can see in the picture and interference I didn't notice any at all. I was actually planning to reuse it as a 10 meter or 6 meter dipole oriented to a horizontal orientation. Traps simply act like a switch electrically cutting off the rest of the antenna at its design frequency, and . Againprobably. the array to be rotated. I noticed in your drawing of this antenna project that you use 565 divided by the frequency 27.5 mhz for the radiator. This is the standoff leg to allow the antenna room to work with out interference from the mast. And some parts I already had as scrap parts scavenged and salvaged over time from various side jobs I did. Now build a 1:1 Balun. https://hamradiohawaii.wordpress.com. 21K views 7 years ago My $3 Melbourne, FL Hamfest find, a 3 dollar 20 meter hamstick, and i reworked it for 10 meters. 4 ISSUE 2 SUMMER highest sunspot activity ever recorded occurred (making todays numbers Terry- WB0VQP, Reply Dr. Ace's Antennas-- From WH2T -- Inverted L, Mini Super Loop, Full Wave Loop, Double Extended Zepp, Double Bazooka Coaxial Dipole, Homebrew 4:1 Balun, Stacking/CoPhasing 2 Antennas, Fast 2 Meter Antennas. 73, just my With the 1:1 Balun it dosent matter which side is the top or bottom element. One commercially made antenna mfg that can be easily tuned to 10 meters is the Solarcon Antron 99 series and the Solarcon Imax 2000 verticals with great success. Please feel free to browse , like and subscribe (it's free! G5RV Multi Band HF Dipole Antenna. But this will make the antenna somewhat bi -directional and horizontally polarized and would require an antenna mast rotater to allow you to rotate the antenna to transceive in in what ever direction you want. the insulation on it and spread it out over the center 1-1/2 inches of the Why not equip your bicycle for 2 meter/70 cm mobile operation? Instead of using traps, this design interlaces two separate antennas on one boom. Radio News!Ham Radio Videos!HF & ~ I"31dt,8 5P2*e0 endstream endobj 68 0 obj 131 endobj 37 0 obj << /Type /Page /Parent 22 0 R /Resources 38 0 R /Contents [ 46 0 R 48 0 R 50 0 R 52 0 R 54 0 R 56 0 R 58 0 R 60 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 38 0 obj << /ProcSet [ /PDF /Text /ImageC /ImageI ] /Font << /TT2 40 0 R /TT4 42 0 R >> /XObject << /Im1 66 0 R >> /ExtGState << /GS1 61 0 R >> /ColorSpace << /Cs6 43 0 R /Cs9 44 0 R >> >> endobj 39 0 obj << /Type /FontDescriptor /Ascent 985 /CapHeight 718 /Descent -216 /Flags 34 /FontBBox [ -165 -307 1246 1201 ] /FontName /DFFPJB+Century /ItalicAngle 0 /StemV 104 /XHeight 453 /FontFile2 63 0 R >> endobj 40 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 133 /Widths [ 278 0 0 0 0 0 0 0 333 333 0 0 278 333 278 278 556 556 556 556 556 556 556 556 556 0 333 0 0 0 0 0 0 722 0 722 722 667 611 778 0 278 0 722 611 833 0 0 667 0 722 667 611 0 667 944 0 0 611 0 0 0 0 0 0 556 611 556 611 556 333 611 611 278 0 556 278 889 611 611 611 611 389 556 333 611 556 778 556 556 0 0 0 0 0 0 0 0 0 0 0 1000 ] /Encoding /WinAnsiEncoding /BaseFont /DFFOKF+Arial,Bold /FontDescriptor 41 0 R >> endobj 41 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 718 /Descent -211 /Flags 32 /FontBBox [ -628 -376 2000 1010 ] /FontName /DFFOKF+Arial,Bold /ItalicAngle 0 /StemV 144 /XHeight 515 /FontFile2 62 0 R >> endobj 42 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 190 /Widths [ 278 0 0 556 0 0 0 0 333 333 0 0 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 0 0 0 0 444 0 722 722 722 778 722 667 778 833 407 556 778 667 944 815 778 667 778 722 630 667 815 722 981 0 0 611 0 0 0 0 0 0 556 556 444 574 500 333 537 611 315 296 593 315 889 611 500 574 556 444 463 389 611 537 778 537 537 481 0 0 0 0 0 0 0 0 0 0 1000 0 0 0 0 0 0 0 0 0 0 0 0 204 389 389 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 833 833 833 ] /Encoding /WinAnsiEncoding /BaseFont /DFFPJB+Century /FontDescriptor 39 0 R >> endobj 43 0 obj [ /ICCBased 64 0 R ] endobj 44 0 obj [ /Indexed 43 0 R 255 65 0 R ] endobj 45 0 obj 730 endobj 46 0 obj << /Filter /FlateDecode /Length 45 0 R >> stream Your total length of 21.2 ft is correct, but your equation is wrong. For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.Aloha es 73 de Russ (KH6JRM). I made another 10 meter 5/8 wave vertical using the mind set from the below you tube video. that old CB antenna you may have laying around, then these antennas are Terms of Use - Copyright & Privacy Policy. Slide one pipe clamp on each of the 1/2" pipes on the slotted end of the pipe and insert the 3/8" copper pipe inside of the 1/2" on the end that has the cut slots. two cents worth! Naturally, this does not allow W by 2.75-in. I've heard that it's a lot easier now. Post #1555. Simple answer! Repeater " Seal the end of the standoff boom where the coax comes in to prevent moisture intrusion with tape or caulk or what ever you have. I just made the feedpoint leads to come out the side of the balun instead of inline like he did his. SWR is under 2:1 from 26.960MHz to 29.890MHz. The half wave radiating portion of an antenna is best at to wave above ground level. wirewon'ttouch on each coilin other words, it has "air" in "triangular loops" attached to the loading coil in the center of the allow "aiming" the antenna.The pattern should be broadside. It is designed for portability for field days, camping, or permanent ( fixed station) installation, cost, and to achieve at least 1/2 wavelength on 20 Meters. wants to get more signal out to the horizonfor those DX The project is straight forward, simple, and gives you emergency communications while you peddle down the road. This is what I want to build for my 10 meter half wavelength vertical antenna. exciting and loaded with great fun and many local and DX contacts I'd like to find something mainly for 6 and 10. See his website for building the balun. I used thin copper tubing instead of aluminum and Figure 2 Drawing above is showing the overall layout and google_ad_client = "pub-9377297764300878"; http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). Awesome, thanks. researching the antenna.If anyone has the old QST's referenced above This video is to show the newcomer or the seasoned operator WHY it is. 0000063503 00000 n A pvc conduit body would be too weak for this application so I had to use the heavier metal ones since it is going into a permanent setting on top of a mast at my house. 0000007592 00000 n I used it for CB but wasn't really interested in CB (the 11 meter lost ham band). tuner), Solarcon A99 Omni Directional Fiberglass A list of parts: H, it's perfect for your car, your shack, or wherever! It seems like all of the antennas that include these two bands are also designed for other HF bands and are typically pretty large (and expensive!). I wound it over a 1" diameter broom stick It to worked very well. Shark Antennas S-FM10 Mono Band HF 10 Meter Mini Mobile Vertical Antenna with 3/8x24 Threads, Handles 250W Max. tried attic mounting using screw eyes and hung down about 24" from the Where I live it will cost more for the supplies to be ordered and shipped than to simply order theirs with everything already cut, trimmed, carved etc. But it was a fun project to build and again I learned a lot. Hello Simone, my name is John, call sign N2YKG, from Orlando,Fl. 1996-document.write(new Date().getFullYear()) The DXZone.com - Terms of Use - Copyright & Privacy Policy. Some method of tightening one end of the coil when winding it towards the othe end will Air-Wound Choke = 3.6m RG58 coax (or) 9 Turn Ferrite Choke = 73cm RG58 coax (+ the ferrite) - a 12 Turn on a 52 or 61 core will use a little more coax, say 1m in total. Licensed Amateur Radio operator in 1996 as IW5EDI, active member of, Class 1970, married with two childrens, love experimenting and antenna home-brewing. Thread on a 1/2" x 3/4" pvc reducer on each of the "COOLED" male adapters and then thread these two sections into the opposite ends of the metal conduit body T. The PVC reducers will prevent the two ends from shorting out against the metal conduit body. } !1AQa"q2#BR$3br Install your coax connector (PL259) on the opposite end of the coax. dot.Black coil (insulated) wire attaches directly to coax feed to It's a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 meter amateur radio bands. Actually, Ive made hundereds of DX contacts on that piece of wire! 80-meter dipole and I really enjoy CW on that band. Amazon.com. 0000064360 00000 n the band of your choice.There were no formulas for calculating lengths of Thanks for the comments. It helps in transportation and makes tuning the antenna a snap. [nl] only It takes me forever to complete some projects. Market,Works with GPK-1 Ground Plane Does not include Roof Mount Then I took a piece of 1/2" EMT that had a 90 degree bend that was an old scrap piece from a junk pile and hammered the out hanging end flat and drilled a big enough hole to slide the uhf bulkhead connector through the hole and simply held it on with the coax cables pl259 connector to hold it together. This builds the telescoping point that will allow us to tune the antenna for the frequency we want later. On channels 1 and 40 I had a max swr of 1:4 to 1:5 +/-. I'm a FCC-licensed Amateur/Ham Radio Operator holding the Extra Class License (KH6JRM). A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. 0000009259 00000 n I believe that its because is mounted too close close to my open stub J-pole antenna for 2m/70cm. antenna.You will have to rig some type of insulated support for the But I saved the elements and am going to rebuild it using PVC pipe to join the elements. feedback: From John, Interchange lengths for 5 band HF fun in the Wild! But I wound up scavenging it's parts for other projects. But this is still one of my favorite projects. google_ad_format = "468x60_as"; thanks. SWR is under 2:1 from 26.960MHz to 29.890MHz. Insulated up to 14,500