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View Full Version : Antennas, Feedlines, Towers & Rotors



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  1. Mast/ loop antenna interaction.
  2. Mosley TA-33 Trap windings
  3. Help Cophasing 2 meter antennas
  4. Anyone use this antenna for Shortwave? Apex Radio 303WA-2
  5. THIN WIRE
  6. Curiousity Situation In CoaxLand
  7. 'Scope on a noise-cancelling antenna?
  8. Is Rohn GA25GD guy bracket worthwhile on small tower installations?
  9. W8ji large antenna construction
  10. Making your SGC 237 weather "resistant" up on the mast
  11. Hardware for 25G. What do I need?
  12. The 'quietness' of full wave loops.
  13. 25-30' masts
  14. Grounding idea
  15. YAGI Question
  16. Any Suggestion for feed line for a 10 M inverted V?
  17. Counterpoise
  18. 160 meters on 6BVT question.
  19. rebar cage for cement base
  20. Vertical and horizontal signal strength difference ?
  21. 440 yagi matching help needed
  22. Telex HG54HD tower
  23. Calling all telephone men - need velocity factor for jumper wire
  24. dipole antenna question
  25. antenna placement
  26. Will this odd shaped dipole antenna work well or even work at all?
  27. Question About Running Multiple Feedlines
  28. Help with 2 connections (pics attached)
  29. AR-2 2 Meter vertical Tuning
  30. A homebrew ¼ λ Magmount for 2m (edited)
  31. Earth wire for shack
  32. Hustler 6-BTV and a ground rod
  33. 20m dipole ...
  34. Feedline length question
  35. Antennas for operating on a mountain summit
  36. How little modification will affect this antenna tuner performance?
  37. EZENEC or MMANA - user opinions wanted
  38. RX loop for low bands made with coax: Which coax to use?
  39. Is this dangerous...
  40. 20 / 80 antenna with very small lot
  41. 80mtrs
  42. Vetical matching cap -what material and rating to use ?
  43. 162mhz vertical, retune to ham band?
  44. Lightning protection? Ladder line coming into attic.
  45. 19" 1/4 Wave
  46. Antenna directions
  47. Help minimize RF on 160m
  48. Speed of Light?
  49. No Ground Antenna
  50. More delta loop questions...corner feeding.
  51. Antenna Patch Panel and Bad SWRs
  52. 9:1 Balun
  53. Cutting 40m off Alpha-Delta DX-EE
  54. AM Micro-Broadcast Antenna Questions
  55. Alpha Delta is installed - high SWR
  56. I need help with finding a small HF antenna for a Yeasu FT 817 ND radio
  57. Yaesu ATAS-120A Whip
  58. Fractal Antenna in 4NEC2 to PCB File
  59. Inverted Vee EDZ?
  60. coax cables identifications
  61. PL 259
  62. Yet another radial question...
  63. Alternatives to Cushcraft R8..
  64. 10-12-17 trap dipole, need some elmering
  65. SWR - Are these numbers workable with a tuner
  66. Serious DXing antenna for 10 Meters
  67. Winter approaching! 160m antennas?
  68. ID Mosely Beam
  69. SWR Test # 2 - different antenna and a big difference
  70. best 144Mhz vertical Hustler G7-144 or Diamond X-700
  71. HB9CV update
  72. Glass mounted 70cm antenna
  73. Rotor Trouble
  74. Coax switch and power
  75. Indoor HF antenna idea - Looking for input
  76. Help with RG58 Amphenol connector...
  77. Tower Question
  78. Apartment antenna
  79. propagation fluke or something else at work?
  80. What happened to all the Antenna Experimenters?
  81. Here is one but i don"t know how it would work.....which way?
  82. Help with feedline please.
  83. Horizontal wire antenna for 21 MHz - suggestions wanted
  84. Anyone using or order the Comet CH5V rotatable dipole thats new!?
  85. wich is the best 144Mhz vertical(more gain,longest)?
  86. End-fed antenna designs
  87. Trying to design a VHF 5EL Yagi with 4NEC2.
  88. Resonant breakers.
  89. Mobile Antennas for 10 and 20 Meters.
  90. What sort of antenna would require a 9:1 balun?
  91. Glen-Martin 4.5 foot Mini-Tower Suggestions
  92. Elevated radials for Hustler 4BTV
  93. Help with my vertical installation please
  94. I am student in a university college. Please help me with HF antenna
  95. Tower height in Rosville Mi.
  96. Outdoor end fed versus indoor (attic) center fed or loop
  97. Tagra GP-20
  98. AEA CIA HF - eprom program, needed
  99. Extending Windom single wire feedline using coax - commentary please
  100. TA-33 on Rohn 20g?
  101. Extended radial field?
  102. $100 to whoever can answer this question......(not really!)
  103. Will this work???? But first a little history on what happened
  104. Parallel cross receiving loop antenna
  105. New ham debating what antenna to install.
  106. I Pro Traveller Antenna
  107. S9 vs Eagle One
  108. Rotor or controller problem?
  109. A question about antennas and proxsimity to vinyl covered wooden structures
  110. Tower coax standoffs/or not
  111. Hy gain tower raising fixture schematic
  112. How close is too close?
  113. KD5SPX Comet Antennas installed with results
  114. Just one reason why I like tower work :)
  115. Protecting Galvanized Finish On HDBX48 Tower?
  116. HF Beam ideas
  117. Toroidal inductors vs air coil
  118. Just out of curiosity
  119. HAM IV tower test
  120. TV antenna as VHF/UHF antenna
  121. Another ? on a multifrequency 40M delta loop
  122. TA-33 on Rohn 20g Part two
  123. Sommer XP507 Manual wanted
  124. Who made this Beam?
  125. laminated WWII Antenna mast
  126. What to do next? Two scenarios.
  127. Lightning Protection, Jetstream JTLA1 vs. I.C.E. vs. others
  128. 2011 Dodge Ram 2500 Diesel PU Hood Lip Mount
  129. Palstar AT2K vs. AT2KD suggestions
  130. LMR400 - which version
  131. An Antennae "illustration" with ladderline, but Antennae design is low Z ?
  132. Anyone seen this mains ground method?
  133. Source for a Plexiglas scrap to use as a dipole center insulator?
  134. sub-mm antenna
  135. burying coax:
  136. ZS6BKW antenna question
  137. Homebrew Scanner Antenna Modifications
  138. Well......that didn't work!
  139. Thanks, Walt W2DU
  140. New Ham needs help deciding on an antenna
  141. Let's talk grounding (picture included)
  142. Ground rod material?
  143. T/R antenna switch / MFJ-1707
  144. is it possible for 2 people to take this tower down
  145. HELP - Aluminum Crank Up Tower Identification
  146. Automatic antenna tuners, how they react to in-transmit antenna impedance changes?
  147. Velocity factor needed to shrink the lenght of a dipole
  148. Hy-Gain 18AVT/WB-A stub tube radial system clone
  149. Hexbeam vs wire dipole or other suggestions for 17 meters w/HOA restrictions?
  150. Given a tower
  151. Running coax in a wall
  152. Ground rod sticks out about 2 feet
  153. Noob lightning questions/antenna placement
  154. Kenwood tk-270 antenna help
  155. FREE - Radio Antenna Engineering by Edmund A. Laport
  156. Multi-band HF wire antenna
  157. hrd re W9gb- sent priv message....old tread not able to reload
  158. Coax expertise please.....
  159. attic attenna
  160. Antron99 on HF
  161. Coleman Cable Co RG-6 Quad any good?
  162. One Loop for Three Bands 7,14,28 MHz
  163. Hustler G7-144 vertical
  164. Diagram of what I put up this weekend
  165. Connecting Vintage Hi-Z Receiver to Wire Antenna through Coax and Baluns?
  166. Summary of options for 5 band directional antenna (20, 17, 15, 12, 10)?
  167. Cutting coax at full wavelength and baluns, etc.
  168. Ground plane and radial theory help
  169. Windom 160 question
  170. Vertical mono-band antenna spacing?
  171. 2 meter dipole?. Where can I find one of these?
  172. Delta loop observations with a non metallic mast.
  173. How non-straight angled feedline will affect sloper performance?
  174. Antenna closer to ionosphere, what happens at 6141 feet?
  175. Dorm Room Random Wire Grounding
  176. Resurrecting a Cushcraft R-7
  177. Attic Loop
  178. Yaesu G-1000DXA support bolts
  179. KLM 1:1 balun power
  180. Fun with dipoles
  181. DIY 2M tuner?
  182. Adding radials makes swr go up
  183. HELP!!! Dipole has died!
  184. Diamond h700x vert
  185. Keying Pierce oscillator
  186. browning nmo antennas in 6m
  187. LMR400, rotor loop and choke questions.
  188. Cutting AlphaDelta DXCC to DXEE length
  189. MFJ-1432
  190. rotor wiring question
  191. My first 40M loop antenna - interesting data!
  192. Stripped Coax Dielectric Length
  193. Tuner with only two controls, capable of both low and high impedance matching?
  194. Dipole balun question.....
  195. MFJ-259B vs. MFJ-266
  196. CD-45II ROTATOR
  197. Help with HF6V Antenna
  198. Many 4 foot ground rods vs one 8 foot?
  199. Narrow Bandwidth on a 10M dipole... advice sought to fix
  200. Antenna mounting clamps - mystery
  201. Designing a Shortened Antenna
  202. W3DZZ Trap Antenna
  203. Help choosing an HF Vertical.
  204. 6 & 10 Meter Quad
  205. How to identify the freq of a Yagi antenna?
  206. Antenna / Tower Help Please!
  207. General Tower Antenna Question
  208. 300 ohm twin lead
  209. Unexpected situation with long(?) wire and AH-4
  210. 3-element beam / Yagi for 10 meters: What can I expect?
  211. quick receiveing antenna
  212. Intermittent SWR only on some frequencies
  213. 40m dipole at 22' - worthwhile?
  214. dipole construction question
  215. getting 80m loop to work on 16m???
  216. Feedline 'decoupling'.
  217. How many ground radials
  218. mast for dipole question
  219. What to use for guy wires?
  220. dipole construction question
  221. Coax identification
  222. Lightning Protection for Tower
  223. Windom and Choke Balun
  224. Glen-Martin RT-424 and some questions..
  225. Antenna switches . . . any preference?
  226. Balun Core windings
  227. Magnetic Loop Calculations
  228. Thank you to all for your help - I rasied my first antenna and I am really happy
  229. R7 vrs S9V-31
  230. Proper installation of Rohn adjustable house bracket
  231. questions on some jpoles
  232. easy and cheap no guy antenna mast?
  233. What kind of antenna is this?
  234. 160m dipole//swr at shack??
  235. Coax tooid vs. bifilar winding - heating
  236. HF Vertical/Ground Plane Design Opinions Needed
  237. 160M OCF materials list
  238. Any experience with the RadiWavz DX OCFD?
  239. 160
  240. G1000DXa hard to turn CCW
  241. Centering a Mast/Rotor
  242. Ladder Line to Shack? What About Grounding?
  243. Performance Plastics -- Using the RIGHT material for DIY Antenna Construction
  244. CD-45II Controller
  245. Computer interface for yaesu G5400B
  246. Dry ground for grounding..
  247. K7MEM Electrically Shortened Dipole (my experiences, pros+cons)
  248. Suggestions for HF antennas on a Honda Element
  249. Problem removing a PL259 connector from an antenna
  250. Small Multiband HF Vertical
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