dipole

  1. Floridarailfanning

    Commscope DB222-A Dipole

    Does anyone have any insight or experience with the DB222-A? I'm considering going with the 150-158MHz version for a project I'm working on since it has decent gain in the offset config. and 36° verticle beamwidth but I'm curious what feedback others have. It would probably end up getting...
  2. brizzotheizzo

    Dipole feed line length question

    I am building a dipole antenna. I know that the feedline needs to be approximately 1/2 wavelength in length (or factors there of) for best SWR. However, there is one item of confusion. I am making an RF choke by coiling the feedline at the base of the antenna. Do I include the length of coax in...
  3. M

    Ideas for improving indoor FM reception?

    I am trying to improve stereo reception of a station about 30 miles away to the North/Northwest.The building I am in is about 20 vertical feet from the crest of a hill. I have access to interior spaces, but nothing outside. Sadly, I am on the ground floor of the building. There are two big...
  4. D

    feed line for vertical wire dipole

    i have a wire dipole that was used in an attic. I wish to use it as a vertical antenna hung from a tall tree. The previous owner said I would have no problems as long as I lead the feed line away from the lower antenna element. (so it runs at an angle to it rather than letting gravity take it...
  5. I

    Dipole/J-Pole/Slim Jim for a Backyard Antenna for my Baofeng UV-5R

    I'm looking for some advice for an external antenna that I can rig up with a simple base/post to better receive with the UV-5R. The last year I've enjoyed listening to the local repeaters (by local I mean any repeater within 20-40km from the QTH. Any advice would be appreciated. I currently have...
  6. B

    Any experiance with the Laird YDA1504 VHF Dipole

    Have any of you had any experience with the Laird YDA-1504 VHF 4-bay dipole? My options are to put in an amp or replace the antenna to increase the output, but would prefer the additional receive gain by looking at t upgrading a 2-bay to a 4-bay on a VHF repeater system? I know you get what...
  7. M

    Dipole question

    Hi All I have a line of trees above my house approx 30 yards linear up with an elevation change of approx 6-8 feet from the foundation of my house to the line of trees. The tallest tree is about 100 feet high in the air. My question is : Can I place the center dipole 50-90 feet up in that tree...
  8. 2

    Dipole, Off-Center, Balun, No Balun, 50 or 75 Ohm Coax?

    Just started playing with the home-brew antennas for my scanner family. I have 2 I am using now, plus 4 purchased antennas... I've been reading, and reading, and looking at pictures, studying designs... ... and there's a few things that seem unclear to me: 1) for dipoles, real dipoles...
  9. F

    Indoor Fan Dipole

    I am trying to build a multiband antenna for medium and shortwave listening. I will not be transmitting with this antenna. I found a website and tried to follow the design, except for indoors rather than outside. I live in an apartment. As I have limited space, I thought that I could bend the...
  10. myspacebarisbroken

    CB with a G5RV?

    Hi, I was wondering if I could effectively use a CB radio with a G5RV? I happen to have a G5RV for my Icom 718, and since it covers both the 10 and 12 meter bands, I figured I could use it on 11 meters. I was also wondering if there were any FCC regulations prohibiting such uses. Thanks.:cool:
  11. T

    Looking to build a dipole for 455 Mhz

    Hi am looking to build a Dipole for 455 Mhz just to receive I have been looking around but can't find much on this maybe some body could help me out looking at 6 Element or a half wave dipole in mm would be great with the spacing. Thanks M3FUE
  12. C

    Does a 433MHz antenna help with reception?

    Hi, this is my first post so please tell me if I am double posting or in the wrong section. Anyway, my question is whether or not a 433MHz antenna will improve reception of 433Mhz signals on my handheld scanner compared to the rubber duck stock antenna. I ask because the antenna I am looking at...
  13. asd6845

    Need info about Antenna

    After much searching, I could not find anything about this. So here goes the question. What is the gain of the wideband VHF (136-173Mhz) dipole portable antenna vs. the standard heliflex antenna you would normally see on a Motorola radio. I only ask because I came across one for sale and it...
  14. C

    Am I on the right track with my DIY scanner antenna?

    Hi all, I'm a real radio newbie, and have just started messing around with a BC246T. Can you believe I already want a new antenna after a week and a half with this thing? I've been reading through many of the posts here, and learning a lot. I've also done a lot of research other places. I...
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