The HAM Radio Operator's Antenna HANDBOOK by Buck Rogers ( K4ABT, for over 60 years)

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1 of 29 8/27/2007 8:20 AM Monday, August 27, 2007 Tell your friends, you found it at: Serving HAM Radio since 1959, On the Web Since 1995 Order Toll Free Monday through Friday, 9 am to 4 pm, 1 800 726 2919 or 1 866 300 1969, Saturday 9 AM to 2 PM ALL Times, Eastern NO MINIMUM ORDERS, Same Day Shipping, except Sunday and Holidays BUXCOMM Corporation 115 LUENBURG DRIVE EVINGTON, VIRGINIA 24550 Please DO NOT call Order Lines with technical questions. Our order lines are managed by sales personnel, and cannot transfer to tech support. BUXCOMM Tech Support is by expert ARO's, Technicians and Engineers. *Tech Support; Email; support@buxcomm.com We accept: NOTICE: We ship WINDOM and G5RV antennas worldwide, However; Due to excessive damage, we cannot ship HF Mobile or VHF Base antennas outside the continental USA! The HAM Radio Operator's Antenna HANDBOOK by Buck Rogers ( K4ABT, for over 60 years) For TNC to Radio Interface Cable Diagrams, CLICK HERE! For PSK31 & SSTV Interface Diagrams, CLICK HERE!

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4 of 29 8/27/2007 8:20 AM When using a Dipole made similar to the above antenna, it is highly recommended that a 1:1 BALUN be used at the antenna feed point (center insulator).

8 of 29 8/27/2007 8:20 AM Output Connector Hard-Drawn, tempered Brass Binding Posts. Bandwidth 160-10 m. Power Loss, db less than 1 db. ADD TO CART ADD TO CART Similar to above AE41, except: 1:1 (One to One) BALUN AE11 Our BUXCOMM 'American Eagle' israted for 2500 watt SSB service, 1 to 1 CURRENT type, High Performance, Heavy Duty, BALUN. Built for power, strength, and durability, and most of all, maxium transfer of RF energy to your antenna. At BUXCOMM, we don't cut corners. Hardened Brass terminals, large, low permebility ferrite cores to prevent core saturation at high power peaks. Internal connections are silver-bearing soldered, coaxial connectors are silver plated, with teflon insulators, and gold flashed center pin. 1.8 MHz to well into the VHF region. Good photos of VHF & UHF YAGI

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12 of 29 8/27/2007 8:20 AM Antennas & Accessories CLICK ON the small graphic to view full size. Half-Wave HF Antenna Cutting Chart.

13 of 29 8/27/2007 8:20 AM CLICK ON the small graphic to view full size. VHF/UHF Cutting Chart CLICK ON the small graphic to view full size. Antenna Isolation / Spacing Charts HAM Radio and Commercial 2-way radio antennas

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15 of 29 8/27/2007 8:20 AM A=Benz-O-Matic propane torch; B=Lead-Free solder; C=Tape measure: D=Tubing cutte r; E=Sharpie marking pen; F=Solder Paste; G=1/2 inch copper caps; H=Hardcopy of the above drawing; I=Wet Towel; J=PreCut, ready to assemble parts of the 2 meter J-Pole.

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18 of 29 8/27/2007 8:20 AM BUX COMM, 142 to 150 MHz; Fiberglass J pol For low terrestrial noise, use fiberglass elements. For optimum performance and gain, feed with BUX COMM "VBALUN." Courtesy HRC Antenna Newsletter (c)

19 of 29 8/27/2007 8:20 AM BUX COMM, 435 to 450 MHz; Fiberglass J pol For low terrestrial noise, use fiberglass elements. For optimum performance and gain, feed with BUX COMM "VBALUN." Courtesy HRC Antenna Newsletter (c)

20 of 29 8/27/2007 8:20 AM Four element, two meter beam, elements can be tubular aluminum, solid aluminum, or for low terrestrial noise, use fiberglass elements. This beam may be installed vertical, or horizontal. For optimum performance and gain, feed with BUX COMM "VBALUN." Courtesy HRC Antenna Newsletter (c)

21 of 29 8/27/2007 8:20 AM Four element, six meter beam, elements can be tubular aluminum, solid aluminum, or for less terrestrial noise, use fiberglass elements. This beam may be installed vertical, or horizontal. Courtesy HRC Antenna Newsletter (c) Design-A-Quad Antenna

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24 of 29 8/27/2007 8:20 AM If you prefer; Order BUX COMM WINDOM "without coax" Model 802136 Above Windom with Fifty ft. (50') RG8X coax and connectors, $ 79.95 802136W50

25 of 29 8/27/2007 8:20 AM Above Windom with One Hundred ft. (100') RG8X coax and connectors, $ 95.95 802136W100 The Windom can be installed as a Droop-End (see figure D below) or as a sloper, but in no case, should the angle be greater than 90 degrees against itself. To use an angle that folds against the pattern of the opposite end, or the feed line of the Windom, could change the impedance of the feed-point, change the multi-band features, and most important, destroy the radiation characteristics of the antenna. Figure D In other words, install the Windom as you would any other dipole, while using a common sense approach. The fact that we are feeding this Windom using coax, and a single balun, gives us the ability to construct it as a drooped-end antennas or at a "real estate saving (angle)" without destroying the features and performance of the Windom. WE Accept NOTICE: We ship WINDOM and G5RV (wire type) antennas worldwide, However; Due to excessive damage, we DO NOT ship Mobile HF or Base VHF antennas outside the continental USA! For those who want lightning protection, here is one of many, lightning protection device. An HF Dipole Antenna specially designed with the Apartment Dweller, RV, & Field-day operator in mind. Don't be fooled by those over-priced knock-offs that use a piece of drilled aluminum that breaks in a cold wind. This is the original, Fixed station, RV, apartment dweller, and portable dipole from BUX Communications. It is designed for rapid deployment and effective HF communications where space is limited. The mounting bracket and hardware are made of high-quality, hard-drawn, aircraft aluminum, to withstand the elements and maintain a strong posture in adverse wind and weather conditions.

26 of 29 8/27/2007 8:20 AM On a budget, Mobile in an RV, or live in a space-restricted environment?.. Here's the the solution: Here's an HF horizontal (or vertical) polarized antenna that will meet those beams "head-on!" When installed on a rotor, this combo makes a great bi-directional fixed-station antenna. Shown here with BUX UNUN (ONION) as the decoupling balun (unun) to prevent reradiating of the coax shield and better match at the antenna feed point. When the stations with the gain and power in their antennas are transmitting in the horizontal plane, then you should be meeting them in the same plane. Horizontal signals tend to follow the earths contour, and are easier to capture using a horizontally polarized antenna. See the BUX UNUN elsewhere on this page. By combining a pair (two) of the single band HF Mobile (loaded) tunable-tip antennas, you can have an ideal, single element, (bi-directional) horizontal dipole. At left; is a photo of the BUX CommCo dipole configuration using a pair of our model BHF20M mobile antennas, and our model DABRKT "Double Antenna BRacKeT." The DABRKT will fit up to one and a quarter inch (1-1/4") diameter mast. The supporting mast is attached to the apex of our warehouse. Overall height of my antenna above ground is only 17 feet. When you see me on 20 meters (14.070,15 USB) running test on RASCAL interfaces, this is the antenna I am using. BCC Photo By combining a pair (two) of the single band HF (VHF) whips at left, you can have an ideal, single element, horizontal dipole (beam). This type antenna opens the world of HF and VHF communications for the apartment dweller, RV HAM, field-day operating, and a variety of other uses and applications. Bracket alone is $16.95 tuneable-tip antennas allow adjusting for minimum VSWR. or see the DBLSPCL; details below When you see me in QSO on 20 meters, using PSK31, I am using this antenna mount with two of the BHF-20 M antennas at 17 ft. An FT-817 at 5 watts PEP, worked 50 + countries. When installed on a rotor, this combo makes a great bi-directional fixed-station antenna. Turning radius, seventeen feet, (approx). HF Mobile (loaded), tunable-tip antennas

27 of 29 8/27/2007 8:20 AM Photo above; BUX COMM, "DBLCOMBO", see details below. BUX COMM graphics 1998-2004 (c) INDEX to our web pages RASCAL GLX with both USB & Serial Interface RASCAL GLX Serial Cable only, w/free Cable RASCAL to Radio RASCAL Kit & with FREE Radio Cable (64) PacketRadio to TNC Interface Cables BASE Station Ant MOBILE Antennas & Accessories BALUNS 1:1, 2:1, 4:1, 6:1, 9:1, 12:1, 16:1 & More RF Connectors, C WIRE Coax, Rotor, Power, Dacron Rope+ TOROIDS BALUN Cores, & Noise Supress Amateur Radio Tr METERS, Power, SWR, Panel, DMM, DVM POWER Cords, Fuses, Fuse Holders, Wire POWER CORDS, AUDIO Connectors, Cables and Adapters, Audio and Power Transformers SWITCHES, RASC TOOLS & TEST EQUIPMENT MICROPHONE Replacements & Headsets SOLID STATE, RF SPEAKERS Headsets, & Accessories MAIL ORDER FORM MAIL ORDER FOR