Homebrew Beam CB Radio Antenna My New Homemade Base station

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  • เผยแพร่เมื่อ 28 ก.ย. 2024
  • Co phased Ground Plane antennas. 30 feet in the air, and on a rotor. Standard 75 ohm co-phase harness, and a barrel connector used to connect it to My 50 ohm coax.

ความคิดเห็น • 509

  • @GiantSequoiaNation
    @GiantSequoiaNation ปีที่แล้ว +12

    I love how Barb supports Mower Junkie with all his projects. Behind every great man…

  • @robduncan599
    @robduncan599 3 ปีที่แล้ว +21

    When the xyl says it's absolutely gorgeous . You have already won !

  • @coffeecan7440
    @coffeecan7440 3 ปีที่แล้ว +4

    Great work MJ! You are a great advocate for our hobby. Really appreciate your passion

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thanks, I appreciate that! Take care, 73's from 151 SC.

  • @willian.direction6740
    @willian.direction6740 3 ปีที่แล้ว +7

    Phased Array works well. Reminds me of the "Twin Trucker" antenna on each rear view mirrors.

  • @MichaelWilliams-ze9yk
    @MichaelWilliams-ze9yk 2 ปีที่แล้ว +2

    I just completed this antenna build, I used two ss 102 whips and 4, 4ft Wilson fiberglass antennas for ground radials. It's turned out awesome, it looks like something I would have bought from a store. That's just my opinion. My swr's aren't quite as good as yours, but I've got 1.3 to 1 on channel 1, 1.2 to 1 on channel 20 and 1.1 to 1 on 40.
    I usually talk on 38 lsb so I'm happy with my swr readings. Love you're channel, keep bringing on the antenna builds, love em !

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว +2

      That's awesome! You're the first person to tell me they successfully made one of these antennas. Enjoy the hobby, 73's from 151 SC.

    • @LuisPerez-xe6nu
      @LuisPerez-xe6nu ปีที่แล้ว

      Why not using SS whips for radials?

    • @freepressright
      @freepressright ปีที่แล้ว

      @Luis Perez who can afford to? They're close to $100 apiece anymore. Not worth it for a home brew antenna. You'd have $300 to $400 wrapped up in radiators and radials if you used 102's for the entire build.
      Compromised radials are the norm anyhow. The Sirio GPE 27 5/8 ground plane has three radials that aren't but maybe 4 or 4 feet and the Tornado 27 has slightly shortened radials. Both perform plenty fine

    • @MichaelWilliams-ze9yk
      @MichaelWilliams-ze9yk ปีที่แล้ว +1

      ​@@LuisPerez-xe6nu
      I thought about it, but it came down to money. I still want to use all ss whips to see if it will preform any better, but as it is right now I'm very happy with the antenna.

  • @lawrencedavidson6195
    @lawrencedavidson6195 3 ปีที่แล้ว

    As a former CB'r and antenna builder, i must say that was an excellent SWR you got. Greetings from sunny Jamaica.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Thanks Lawrence, I'm very happy with My new antenna. I've talked to a couple of stations in Jamaica with it. Thanks for watching, 73's from 151 SC.

  • @brannciforte1373
    @brannciforte1373 ปีที่แล้ว +1

    You've got yourself a nice little dual diversity pair of stardusters I like it kind of reminds me of the old set of IMAX antennas I put up going opposite directions about 30° up from flat had to use a pair of 75 ohm cables quarter wave long times the velocity Factor get it to work right and a couple other little deals but yeah Homebrew that's the way to go man when it works you feel 10 times better than just going out and buying something

  • @artdodd2932
    @artdodd2932 3 ปีที่แล้ว +2

    Good job. It’s great with the rotor. You can null out interference and at the same time get some gain vertically polarized . Great video as always MJ. Art NJ

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +2

      Thanks for watching, 73's from 151 SC.

  • @christophersmith1155
    @christophersmith1155 3 ปีที่แล้ว +6

    I hope that you keep both the three element yagi and the co-phased ground plane up on the roof. This way you can work both verticaly and horozontaly .

    • @at5950
      @at5950 2 ปีที่แล้ว

  • @alzeNL
    @alzeNL 3 ปีที่แล้ว +1

    What an amazing antenna, like the comment from Robert M. below, that is an *amazing* antenna, getting the resonance correct first time is simply amazing. You are a fantastic engineer, and I agree with your XYL ! This is lovely to watch.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thank You so much. Take care, 73's from 151 SC.

  • @russtatt
    @russtatt 2 ปีที่แล้ว +10

    This antenna looks and appears to perform great. It also has the bonus of being quite compact, which would be ideal for my small garden. I know you show the parts you used, but do you have a list of what's required so a technical incompetent like me could construct one ?. All the best from across the pond.

    • @JamesSmith-vw5jx
      @JamesSmith-vw5jx 2 ปีที่แล้ว +2

      Really enjoy your show I intend to build one myself thank you very much 73s 537

  • @dxscotland5901
    @dxscotland5901 3 ปีที่แล้ว

    Absolutely brilliant John! Experimenting is a big part of the hobby for me! Take care and regards to your mrs 👍 73 176 Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Take care 176, Thanks for watching 73's from 151 SC.

  • @q95oldies57
    @q95oldies57 8 หลายเดือนก่อน +1

    Cool. I've always wanted to do that with two A99s.

  • @kengoossen9944
    @kengoossen9944 3 ปีที่แล้ว

    That looks like a Jo Gunn antenna except that a Beam has a reflector, a driver, and a director. This doesn't. You will find that this antenna will radiate in a figure 8 pattern off of the sides of the antenna so it will get out better from the either side rather than off either end. It looks great and brings back memories when I use to play around with antennas in my back yard in the 80's. Keep up the good work. I enjoy all your videos.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Yup! The figure 8 radiation pattern is why I put it on a rotor. this way I can point where it needs to be. Thanks for watching, 73's from 151 SC.

  • @ronnieelliott7635
    @ronnieelliott7635 3 ปีที่แล้ว +1

    Works great looks great keep up the good work.I really like your videos and they all work great. I’m NightOwl 137 Southern Indiana

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thank You so much. Take care 137, 73's from 151 SC.

  • @donl1846
    @donl1846 3 ปีที่แล้ว

    Your not nuts, you just love the hobby, congrats on your antenna project !!

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      You got that right! Thanks for watching, 73's from 151 SC.

  • @richardowens9061
    @richardowens9061 3 ปีที่แล้ว +4

    For your next homebrew antenna project you might consider building a two element quad beam. Back in 1978 I had an Avanti PDL-2 Quad beam on the roof at about 35 feet that got out great! It would effectively multiply my transmit power by 16 times (4 watts would get out like 64 watts and 100w would get out like 1600w!) What's cool about a two element quad beam is:
    1 - It has a shorter boom length than your phased beam in this video
    2 - It's a wire antenna, rather than using aluminum elements (although, it does use an aluminum boom to space the elements)
    3 - It provides the ability to switch between vertical and horizontal polarization (although, it does require two feedlines)
    4 - It provides both gain in the forward direction and rejection of signals coming in from the rear of the antenna
    5 - The rear element is totally passive, requiring no connection (the rear element wires are slightly longer than the driven front element)
    6 - The wires are bent around the spreaders so it isn't as tall or wide as straight elements, which means it can be rotated in a smaller space
    A step up from the two element quad would be a three or four element quad. You may recall the legendary Moonraker 4 antennas that were popular in the 70's. They had a reflector element at the rear - like the PDL-2 - then a driven element in front of that and then two passive director elements that further narrowed the beam in front of that. And, of course, there was the big boy beam - the Moonraker 6 antennas that had a 36 foot boom and SIX elements - the reflector, the driven element, and then FOUR passive director elements! The Moonraker 6 would effectively multiply your transmit power by a whopping 50 times!
    Thanks, for the video!

    • @johnsortore4470
      @johnsortore4470 3 ปีที่แล้ว

      I also had a PDL2 back in the '90s. Mine came apart and was destroyed during a microburst. The hard part of duplicating this great antenna is trying to find an economical way to fabricate the "orbital" spherical ball skeleton.

    • @mstover2809
      @mstover2809 2 ปีที่แล้ว

      @@johnsortore4470 I had a Moonraker 4 in the late 80s that got caught in a tree and mangled the director elements pretty bad. A friend fabricated a PDL-II out of the remnants. To make the orbital elements, he bent the aluminum tubing around the trunk of another tree. Worked great.

    • @johnsortore4470
      @johnsortore4470 2 ปีที่แล้ว

      @@mstover2809 I've tried to bend some but they always kink.
      With the new technology of 3D printing, someone should start making the PDL2 hubs.

  • @MsButtons55
    @MsButtons55 2 หลายเดือนก่อน

    great video lovely antanna its a pity over here in Ireland nobody uses am anymore.we do have a choice to use fm but only rarely used only when propgaion is in. Most use the upper band on ssb 27.555 calling channel

  • @LovyDuga
    @LovyDuga 3 ปีที่แล้ว

    Good Job 👍. I'll definitely try these kind of antennas with my old and trusted Washington radio.

  • @rudymoccia5110
    @rudymoccia5110 3 ปีที่แล้ว +19

    I love it when you make homemade antennas your real inspiration for us all

  • @641northwestgeorgia
    @641northwestgeorgia 3 ปีที่แล้ว

    Very cool, John! Glad it's working so well for you, and can't wait until we get to talk on the radio again. :) 73s from 641

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thanks Josh! I'm looking forward to it as well. Take care 641, 73's from 151 SC.

  • @rustyrails3225
    @rustyrails3225 3 ปีที่แล้ว

    Mower junkie. You continue to amaze the cb world. Keep it up man. Echo 148 in arkansas standing by

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thanks 148, 73's from 151 SC.

  • @concernedpatriot9314
    @concernedpatriot9314 3 ปีที่แล้ว +1

    Nice 👍 job. Way back in the late 70s I had a PDL 2 that was similar and it was amazing. On simplex I could hit contacts over 30 miles during the day and at night and 50. Good luck 🍀

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Right on! Thanks for watching, 73's from 151 SC.

  • @richardcallihan9746
    @richardcallihan9746 2 ปีที่แล้ว

    Antenna experimenter extraordinaire.

  • @mattmeyer1847
    @mattmeyer1847 3 ปีที่แล้ว +1

    Usually when using the 102” you can usually get a better/ lower S.W.R. If you use a 6” spring on each 102” so it makes your overall length 108” each

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      The match on this antenna is almost flat, even with extra power. Springs would only add more weight to the antenna. Thanks for watching, 73's from 151 SC.

  • @richardcallihan9746
    @richardcallihan9746 ปีที่แล้ว

    Just got thru with a long QSO with 1963 Jamaica On .525 LSB on 1/30/23 at 5:00 central We talked about you and both being subs. He said he hadn't talked with his good friend Mower Junkie in a while, due to cond on .385. He said he is on .515, mostly, and .50, .515, .525, and ( ? .60 ) All lsb. 73/88 from Mike DX21

  • @cbradioghosttalk1986
    @cbradioghosttalk1986 3 ปีที่แล้ว +1

    Now, this is cool. Just too much fun. Thanks as always 73s from NY202

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Take care NY202. Thanks for watching, 73's from 151 SC.

    • @cbradioghosttalk1986
      @cbradioghosttalk1986 3 ปีที่แล้ว +1

      @@MowerJunkie Side note We did catch some skip yesterday most Northern NY about 530 pm-600pm Mostly Jamaica and area. Quick and furious .. NY202

  • @qlewton1
    @qlewton1 2 ปีที่แล้ว +1

    Is that 9’ 4 “ perfect spacing or would 9’8” work? Also, would a 18’ co-phase harness work? Cool build and 73’s.

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      The spacing is not critical on this design. it will work best with 9 to 10 foot spacing. I used a factory made 18' co-phase for mine, and a barrel connector to attach it to my coax. Thanks for watching, 73's from 151 SC.

  • @Jace_Izonn
    @Jace_Izonn 9 หลายเดือนก่อน +1

    I added a 6.5" x 1" hairpin from the base of the top 1/4 wave to the grounded hub beneath it as a DC shunt to bleed off static to ground.

    • @MowerJunkie
      @MowerJunkie  9 หลายเดือนก่อน

      that's awesome, I'm glad to hear that worked.

  • @JustinPartridge-v3f
    @JustinPartridge-v3f 12 วันที่ผ่านมา +1

    Fantastic job

  • @vegasfordguy
    @vegasfordguy 3 ปีที่แล้ว

    Another great video as always. Really enjoy watching your channel.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Glad you enjoyed it! Thanks for watching, 73's from 151 SC.

  • @DK5ONV
    @DK5ONV 3 ปีที่แล้ว

    Hey David, are you nuts? Hehehehe...I like what you doing. you enjoy what you do and have lots of fun with it. And this is what's it all about to live in peace and harmony. Good job, buddy. Happy sunday from Germany.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Happy Sunday to You too! Thanks for watching, 73's from 151 SC.

  • @canadianrushfan12
    @canadianrushfan12 ปีที่แล้ว

    I just got my ham license in Canada. It’s going to be a while before I go HF but in the meantime I want to do CB radio.

  • @Dallas-Rife-UDX-347-Tennessee
    @Dallas-Rife-UDX-347-Tennessee 3 ปีที่แล้ว

    Well John , I finally got to watch the video . I'm very impressed , and I'm just gonna say .. I'm gonna steal that design and make my own soon , I don't know when , but I will haha . Great job buddy , very good work .

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Nice! and I'll bet You already have all the parts needed to make it.

  • @alfredweaver5390
    @alfredweaver5390 ปีที่แล้ว

    Show a video of your roof mount. From what I saw, I like it and being a one man show I need all the leverage I can get putting up an antenna.

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว

      check out this video, it shows when I built the fold over roof mount. th-cam.com/video/u4hw3ogGpjA/w-d-xo.html

  • @samwilliams1142
    @samwilliams1142 2 ปีที่แล้ว

    If you can get the velocity factor of the coax make an endfire array by having 1/4 wave more length on one feed that will make it unidirectional.

  • @robertappleby6371
    @robertappleby6371 3 ปีที่แล้ว

    Mower Junkie, you are the man..
    This one is a winner..
    Hopefuly we will hook up some day..
    73s from North Atlantic 1221
    Newfoundland, Canada....
    Later..

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Take care 1221. Thanks for watching, 73's from 151 SC.

  • @gazzabyerun8152
    @gazzabyerun8152 ปีที่แล้ว

    Wow, Pretty cool on the home Brew Beam for sure! Found your channel through cb radio ghost talk -NY202 channel. We are having a March snowstorm so i am kinda chilling near the fire and watching videos, radio has been dead for a few days now as far as skip goes!

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว +1

      I'm so glad we don't have any of the evil white stuff here. stay inside where it's warm! Thanks for watching, Take care

  • @rgnichols567
    @rgnichols567 2 ปีที่แล้ว

    Awesome mj! I'm going to make one of these.

  • @Normie-c7s
    @Normie-c7s 8 หลายเดือนก่อน +1

    What do you think about non metallic verses metallic guy wires

  • @ronleblanc9832
    @ronleblanc9832 3 ปีที่แล้ว

    Really nice build here in nova scotia close to salt water and the wind off st marys bay every thing has to be tripple size ans salt proof to stand up i have a 5 band vertical in the yard its a hustler its suppose to stand qit a bit of wind but i have 4 paracord guys so far its still up good video keep em comming

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      awesome! I hope Your antenna last for many more years! Thanks for watching, 73's from 151 SC.

  • @48pluto
    @48pluto 3 ปีที่แล้ว

    Nice antenna. You will have much fun with this one!

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Thanks, it's been up for a week, and I have been having a lot of fun with it. Thanks for watching, 73's from 151 SC.

  • @OldSgtsMaj52
    @OldSgtsMaj52 2 ปีที่แล้ว

    The greatest thing about your Utube Channel is that when watching the "News" gets you down I can always pull up Mower Junkie and get re grounded!

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      Thanks Troy, I appreciate that. Thanks for watching, 73's from 151 SC.

    • @OldSgtsMaj52
      @OldSgtsMaj52 2 ปีที่แล้ว

      When you were building this in the garage you had what looked like two coil trucker antenna's. Was there a reason for not utilizing them in the final application?

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว +1

      @@OldSgtsMaj52 I just felt that the 102's would work better, and I had plans for the trucker whips.

    • @OldSgtsMaj52
      @OldSgtsMaj52 2 ปีที่แล้ว

      @@MowerJunkie I am thinking seriously of re-constructing your build.

    • @OldSgtsMaj52
      @OldSgtsMaj52 2 ปีที่แล้ว

      @@MowerJunkie So then the 102's are/where a better application? Sorry to keep bugging you on this but action does have reaction... In this case I have done jumped head first into the Home Brew Rabbit Hole... And with this Video... Well your responsible. I even turned my brother on to your channel and his Wife... Well she thinks we are all crazy!

  • @okhamradio
    @okhamradio 3 ปีที่แล้ว +1

    It is very interesting! Thanks for sharing!

  • @spudhead169
    @spudhead169 2 ปีที่แล้ว

    Keep on being nuts, we love it.

  • @ultimatecleveland
    @ultimatecleveland 3 ปีที่แล้ว

    Excellent video. I made a biquad. 8dbi gain. 24 feet long 12 feet high. About 45 degree beam.
    Can be wired for circular polarization. 73's 351 se michigan.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Nice! Take care 351. Thanks for watching, 73's from 151 SC.

  • @travelinjavelin
    @travelinjavelin 6 หลายเดือนก่อน +1

    I know I've asked 100 questions here but on your coax going to each antenna I think you said you use 75 ohm what was your total length?

    • @MowerJunkie
      @MowerJunkie  6 หลายเดือนก่อน +2

      a basic co-phase harness like the truckers use works great. it's made out of 2 9 foot pieces of 75 ohm coax.

  • @Gilvanildotimoteo
    @Gilvanildotimoteo 7 หลายเดือนก่อน +2

    Congratulações excelente antena bons Dxs pw8gts

  • @harryhunts6171
    @harryhunts6171 3 ปีที่แล้ว +1

    The shape reminds me of a gizmachi. I wonder how it would preform with two more elements.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Me too! a Gizmotchy was the first thing I thought of, after I put it together. Thanks for watching, 73's from 151 SC.

  • @MichaelWilliams-ze9yk
    @MichaelWilliams-ze9yk 2 ปีที่แล้ว

    Just wanted to give you an update on the co-phased antenna. First off I really like this antenna I'm so glad I stumbled across your channel. I got the swr down to less than 1.1 to 1 across the band and this thing works like a champ, I've yet to add a rotor to it, I just have it pointing NE and I've made contact to Canada, Buffalo,NY Cleveland, Ohio, the Carolinas I've even talked to operator's in North Dakota and Arizona. I hope one day to make contact with you using your co-phased antenna design, that would really make my day! Until then 73's friend and keep the antenna designs coming.
    719 SE Oklahoma, operator Wally.

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว +2

      Thank You so much! I'm glad the design worked for You. Take care 719, 73's from 151 SC.

    • @brainiac_brian
      @brainiac_brian ปีที่แล้ว +1

      I know it's been a year since your post. One question- pointed NE- How do you know what side to point NE? One of the ends, one of the sides?
      I was thinking if the 102's were on their side it would be directional the way they are pointing with the ground planes being the backside of antenna.
      Are both co-actions the same length and tied to one end?
      Got any thoughts about this? Thanks in advance😊
      FYI- I'm just south of you in Northeast Texas. About 40 miles south of the Red River.
      73's Mr Wizard 101

    • @MichaelWilliams-ze9yk
      @MichaelWilliams-ze9yk 6 หลายเดือนก่อน

      ​@brainiac_brian I don't think it really matters which end is pointed in a certain direction. it's not really a true directional beam its still a ground plane but i believe it to be slightly directional To be honest, im really not that smart all I know is it just works. I love this antenna. It is better than the A99 I ran back in the 90s in my opinion . And its pretty tough, been through some 50 + mph winds and haven't had any issues. Sorry that's about the best I can answer you're question

    • @MichaelWilliams-ze9yk
      @MichaelWilliams-ze9yk 6 หลายเดือนก่อน

      ​@@MowerJunkie I've had this antenna in the air almost two yrs, it's been through a few Oklahoma thunderstorms with 50+ mph wind and still standing strong. Next days off I'm lowering it down to replace the fire stick radials with SS 102s. Wish I had bought the 102s when they were a lot cheaper, Lol. Also upgrading my coax cable and plan on adding the rotor to it. I've talked all over with this antenna, every time Im asked about my station I always give you props for the antenna design. You're pretty well known, still hoping to make contact with you, I've heard you on SSB but mother nature hasn't been cooperative for me , still gonna try that's my goal to talk to you with this antenna. Love the antenna, love your channel and antenna builds keep em coming. 73s and wishing you well.
      719 SE Oklahoma operator Wally.

  • @markvylonis
    @markvylonis ปีที่แล้ว +1

    Where do you get the materials to build your antennas ?

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว +1

      Thank You. I have bought parts at metal suppliers, Yard sales, flea markets, or any place that has something I might be able to use.
      Thanks for watching, Take care.

  • @izzzzzz6
    @izzzzzz6 ปีที่แล้ว

    Does this have 4 lobes? Co phase projects perpendicular to the elements but if it works a bit like a yagi it would project front to back, I'm guessing it has 4 lobes and does a bit of both, i guess you can test that with the rotator.
    How about add 4 more 102" instead of those loaded sticks. I have a metal roof and thinking to try this in one direction, north if with directors along the roof apex, or east to west as co phase. If it works well with the roof as the ground plane i might be able to swivel a few 102" whips over the apex for directivity. Could be worse i guess.
    Another idea i had was to mount co phase on each of the 4 sides of my roof.

  • @colt45peacemaker
    @colt45peacemaker 3 ปีที่แล้ว

    SWR of an anteanna does not change with increase in power.
    Always take SWR readings with amplifier off unless your meter can handle the power.
    Who needs skip when you run a kicker.
    Texas Star Sweet16, DX500, 350HD.
    Stryker 955HP, Galaxy 959, TS-430s, SILTRONIX 1011D, SB200, Johnson 223, Palomar 300, 350, 225.

  • @nickkoski7076
    @nickkoski7076 3 ปีที่แล้ว

    I wish you lived next to me. I do these kinds of things. People look at me like I'm crazy.. I try to get people into cb and it's rough.

  • @SoonDumpingAllGmailAccounts
    @SoonDumpingAllGmailAccounts 2 ปีที่แล้ว +2

    Very similar to a 2 element I built but it had one 1/4 wave radial in the vertical, one 1/4 wave in the horizontal and the driven 1/4 wave at a 45° downward and it had great vert & horiz DX performance, almost no selective fading! It used three parallel 3.5% longer reflector ¼ waves at 87" spacing.
    *|*
    |
    |

  • @LIVINGRETIRED310
    @LIVINGRETIRED310 ปีที่แล้ว

    Im not to knowledgable of the co-phased antennas. Question, both the 102 whips are not active at the same time are they? In meaning, you have both the coax going into a switch box. What would happen if you had a splitter connector to connect both coax and was able to run only one cable to the switch box

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว

      this antenna does not use a switch box, both antennas are active, they are coupled together with 75ohm coax.

  • @kevinfoutch1
    @kevinfoutch1 3 ปีที่แล้ว

    I need to have you build me one great job you are amazing with the things you come up with

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      😊 thank you, 73's from 151 SC.

  • @ericdee6802
    @ericdee6802 2 ปีที่แล้ว

    Where did you locate that Realistic radio at? Great antenna by the way. If iam not mistaken, you pop into Wagon master 390 channel (live stream) from time to time.
    I just picked up a RCI 2970n3 that iam working on getting set up here at the homestead, maybe we can get a DX QSO going.
    Great channel, thanks for sharing your antenna build. 73's to you!!!✌

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว +1

      I have 2 of those TRC-451 realistic's, I found one on ebay, and a friend gave me the other.
      390 WagonMaster has a cool channel that I do enjoy watching.
      Take care Eric, Good luck with that 2970. 73's from 151 SC.

  • @shep6123
    @shep6123 3 ปีที่แล้ว

    I like the measurements on that because I’ve been wanting to make one like that but I never thought about using the gram planes like you have like you did I didn’t think about that but I did think thought about 102 stainless whip like what you got on both sides that could forget what how to do a ground plane I like that you did fantastic job you need to write the size of the pipe and the stuff that you do in the prescription That way we get the measurements how do you done it we can build one I built in town is not as much as you do keep it up I like it in your test you’re blessed having a wife and helps you

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Thanks Shep. I used a 10 foot by 1 inch diameter pipe for the boom, 2 mirror mount brackets with antenna studs, and four 4 foot 1/4 wave whips for the ground plane. and a co-phase harness to connect the antennas together. Yes, the co-phase coax came with the 2 fiberglass whips. it's 2 pieces of 75 ohm coax connected together.
      Thanks for watching, 73's from 151 SC.

  • @hankchickenbonecoggins5468
    @hankchickenbonecoggins5468 3 ปีที่แล้ว +2

    WOW ,Great job with that one!!!!! How many inches from 102 to 102???

    • @KeffandMac
      @KeffandMac 3 ปีที่แล้ว

      I believe he said 9'4" between

    • @robertmitchum2972
      @robertmitchum2972 3 ปีที่แล้ว

      1/4 wavelength of the frequency in question

  • @arildoaparecidocosta5729
    @arildoaparecidocosta5729 3 ปีที่แล้ว +2

    Bravo perfeito exemplo total bazuka Foz do Iguaçu pr Brasil

  • @toddlarson3602
    @toddlarson3602 2 ปีที่แล้ว

    Is there any way you could send me the specs on the dual co-phased antenna? I just bought a Galaxy Saturn and that antenna might be a good match.

  • @williambowman7244
    @williambowman7244 3 ปีที่แล้ว

    Sure bring to mind the jogunn series antennas this look almost the look of pair starduster also put another pair 4' out off the pipes ends giving the three ground radial
    Great buld I haven't seen that good of set but once on a starduster years ago
    Stay healthy wealthy wise
    From 498 wis

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      It reminds Me of a Gizmotchy antenna. Thanks for watching. Take care 498, 73's from 151 SC.

    • @williambowman7244
      @williambowman7244 3 ปีที่แล้ว

      @@MowerJunkie don't the gizmotchies radiate down at that 45° then take vertical turn half way down the radials

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      @@williambowman7244 The Gizmatchy has 2 active elements. one vertical and one of the lower one's. they both share the other element as a counterpoise.

  • @027MC7
    @027MC7 3 ปีที่แล้ว

    That's the craziest looking contraption I've seen you make......... and I love it ha ha ha ha. Barb thinks it's gorgeous. Good choice marrying her! 😉 btw, I'm in love with your president Adam's. I have a uniden pc66a in that style. Great radios imho. 7 3's from MC7 in Bama.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thanks for the great comment. Take care MC7, 73's from 151 SC.

  • @alfredweaver5390
    @alfredweaver5390 ปีที่แล้ว

    How do connect your coax to your grand plane antennas?

  • @NAVYABHAN
    @NAVYABHAN 3 ปีที่แล้ว

    Looking at what looks like a Beam Style Antenna to me,I can't figure what is the front,and what is the back door. I looked at the performance on the SWR Meter and was very impressed!

    • @ll-bc7ou
      @ll-bc7ou 3 ปีที่แล้ว

      There is no back door with this antenna radiation pattern is stronger in the direction of the radials on both sides. The weak side is at the ends of the boom. It's similar to a dipole I hope that helps.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Just like l l said, the signal radiates opposite the boom in both directions. Thanks for watching, 73's from 151 SC.

  • @shep6123
    @shep6123 ปีที่แล้ว

    I had to watch is this one again I love that antenna I am going to try to build one but I don’t have no ground plains trying to figure another way of doing it I got to 102 stainless whips I’m from Indiana they call me Shep put on side band Shepfc1 catch you on the air hopefully one of these days I may contact you I will be a happy happy happy CB er 73

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว

      Copy that, Shep! I hope to hear you on the radio someday. Thanks for watching, 73's

  • @richarde735
    @richarde735 3 ปีที่แล้ว

    so the two vertical elements are 102” whips and the ground plane elements are fire sticks… is that right?

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Yes, 2 102's and 4 1/4 wave 4 foot fiberglass antennas as the ground planes.

  • @skeets6060
    @skeets6060 ปีที่แล้ว

    So what was the 4 foot whips for ?

  • @ouestmike8567
    @ouestmike8567 3 ปีที่แล้ว +1

    Vey nice antenna, good job. 73

  • @663rainmaker
    @663rainmaker 2 ปีที่แล้ว

    CoPhased antenna work well

  • @jakemichael8586
    @jakemichael8586 3 ปีที่แล้ว

    another way to phase 1/4 wave verticals is center conductor to 1 of the vertical elements and shield to a 1/2 wave pipe or wire then to #2 1/4vertical. no ground plane optemum hight is 1/4 off ground. called a half square antenna look up formula. antenna building is fun! one antenna you have to make is a dipole cut to odd 1/2 wave. so 3/2 5/2 7/2 etc. so basically a dipole 3x 1/2wave 5x1/2 7x1/2 wave. bend it in to a inverted v and it hears good in most direction with gain but has horizontal polarization. it gets fed with 1/4 wave 75 ohm matching section. formula is 492/frequency x 3, 5, 7 etc! sum tuning will be needed as it has a strange resonance with the harmonics. it is a good set of dx ears and good for locals with flat side. thay think you will have the amp on all the time! i would get people on skip when there was almost no band conditions! have to try. it is a old and forgotten antenna. take care and good dx!

  • @86casimir
    @86casimir ปีที่แล้ว

    Very Very nice. Félicitations. GOOD JOB. 73. 😀

  • @tripplesrule
    @tripplesrule 2 ปีที่แล้ว

    Very Nice Antenna sir. I do have a question though. To make it directional, you need a director and a reflector. Which one is which and where is the Gamma match?

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      they are co-phased, both sections are active. co-phased antennas are bi-directional, they concentrate the signal in 2 directions. this antenna design does not require a matching network of any kind, it has a natural 50 ohm resistance.

    • @tripplesrule
      @tripplesrule 2 ปีที่แล้ว

      @@MowerJunkie ok. Got it. Thank you.

  • @dave10524
    @dave10524 3 ปีที่แล้ว

    I believe the old Super Scanner worked much the same, many guys put them on a rotor because they had dead spots. You probably could have got away with a single counterpoise rather than the 2 in a inverted V.

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      This antenna actually works like dual whips on a tractor trailer truck. it sends the power in 2 directions, opposite the boom. Thanks for watching, 73's from 151 SC.

    • @dave10524
      @dave10524 3 ปีที่แล้ว

      Yes , put the boom broadside to the direction you wish to receive, opposite to what someone used to a yagi would expect.

  • @skiball2000
    @skiball2000 2 ปีที่แล้ว

    One more question… The ground planes aren’t tied in the 102” whip… they are just attached to the electric conduit right? I wasn’t sure if the boom was actually part of the antenna or just there to support the Whips…
    I’m ordering everything now. Please help me to be sure I’m doing everything right..
    oh ya… Do you think by using a tuner, I could use this on 10 meters as well…
    Thanks…

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      the boom is just there to hold it all together. I used 4' firesticks that are attached to the boom. the 102's are isolated from the boom.

    • @skiball2000
      @skiball2000 2 ปีที่แล้ว

      @@MowerJunkie I ordered Tram -B-HC CB antennas. They are only 3 feet. Lol… I saw on your video the ground planes had a red tip, the things I bought had a red tip. Oh well… I’m sure I’ll find a use for them someday. I’ll order the fire sticks tonight.
      Thanks,
      WW3HAM

    • @skiball2000
      @skiball2000 2 ปีที่แล้ว

      @@MowerJunkie Just to be clear… The boom is or is not metal conduit.? I just watched a video where they are using round aluminum tubing. I can find the aluminum tubing but 1, 2 or 3 foot lengths. Lowe’s did have 6’ but they are sold out. Thanks…
      Thanks…

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      @@skiball2000 aluminum is best, But I used 1" steel pipe for mine.

  • @johnlane6986
    @johnlane6986 2 ปีที่แล้ว

    Hello sir I love your antenna I was wondering if you could help build one of these example what kind of boom did you use and the exact dimensions I'm new in the cb world thanks for your time sir

  • @ridethepow
    @ridethepow 3 ปีที่แล้ว

    MJ, lookup "Christman Phasing Method- VA7ST." Not bad to build. Would be beneficial for controlling nulls and patterns. Great vid OM.414CA.73

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      Thanks for the tip! 73's from 151 SC.

  • @hasantanjung1990
    @hasantanjung1990 3 ปีที่แล้ว

    best antenna guy..i like it..want to make one..

  • @davidmckinnon259
    @davidmckinnon259 3 ปีที่แล้ว

    Has to be satisfying to get such great results. Va 471

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Very satisfying! especially after all the time I put into the design. Take care Va 471. Thanks for watching, 73's from 151 SC.

  • @craftsman123456
    @craftsman123456 ปีที่แล้ว

    What a cool build. How is it holding up.

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว

      Thanks. It's in a box in my garage now, I've built and tested many other antennas after this one.
      Thanks for watching, Take care.

  • @acestudioscouk-Ace-G0ACE
    @acestudioscouk-Ace-G0ACE 2 ปีที่แล้ว

    Nice job! This works very well, I'm guessing the radiation pattern would be similar to a twin phased set up on an 18 wheeler truck or "lorry" as we in the UK would call it?

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      Yup, it acts like a vertical, but it has additional gain in 2 directions. Thanks for watching, Take care.

    • @acestudioscouk-Ace-G0ACE
      @acestudioscouk-Ace-G0ACE 2 ปีที่แล้ว

      @@MowerJunkie Thanks for the reply.

  • @brianveitenheimer4492
    @brianveitenheimer4492 3 ปีที่แล้ว +1

    Great job as always. What is the co phase spacing for the whips? #wr2356

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      I have them 9' 4" from 102 to 102. Take care WR2356, Thanks for watching, 73's from 151 SC.

  • @doglegjake6788
    @doglegjake6788 3 หลายเดือนก่อน

    Excellent video

    • @MowerJunkie
      @MowerJunkie  3 หลายเดือนก่อน

      Thanks for watching, 73's

  • @captainchrisfishing
    @captainchrisfishing 2 ปีที่แล้ว

    Can you give me an inventory parts list of your antenna build

  • @361cctx-vv6ch
    @361cctx-vv6ch ปีที่แล้ว

    Nice antenna, I have a 4ft firestik. Does the ground radials have to be the same size, when are you usually on 38 or 39. 73s from 361 corpus chirsti texas

    • @MowerJunkie
      @MowerJunkie  ปีที่แล้ว +1

      the radials can be any length, as long as they are 1/4 wave. I'm usually on 38lsb. Thanks for watching, Take care.

    • @361cctx-vv6ch
      @361cctx-vv6ch ปีที่แล้ว

      @@MowerJunkie thank you for the info, curious have you heard 361 corpus Christi texas yet.

  • @nigelsookdeo6880
    @nigelsookdeo6880 2 ปีที่แล้ว

    Did you use a phasing harness how did you make it?

    • @MowerJunkie
      @MowerJunkie  2 ปีที่แล้ว

      The info is in the video, Thanks for watching.

  • @shep6123
    @shep6123 3 ปีที่แล้ว

    I meant to ask you did you make that antenna switcher I love to have a antenna switcher but if I can make one I’d like to try it if I know how to do it so did you make out or do you buy it somewhere shepfc1

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      I'm using a store bought antenna switch. it's cheaper to buy one, than it is to build one. Take care, have a happy 4th.

  • @Hydrostream1972
    @Hydrostream1972 3 ปีที่แล้ว

    Hey. Question. ..
    Swr. A justing. Trim 102. On top 4 better. Swr...

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      When this antenna is assembled correctly, it will not need any adjustments. it will have a 1.2 or less SWR.
      Thanks for watching, 73's from 151 SC.

  • @CharlieM-l2h
    @CharlieM-l2h 5 หลายเดือนก่อน

    Can the 4' fiberglass radials be , any 4' fiberglass radials as a 5/8 wave or .... ??

    • @MowerJunkie
      @MowerJunkie  5 หลายเดือนก่อน +1

      the radials need to be 1/4 wave, 5/8 will not work.

    • @CharlieM-l2h
      @CharlieM-l2h 5 หลายเดือนก่อน

      I seem to have trouble finding them at 1/4 wave .
      Maybe I can use 108 " 10 or 12 Guage copper wire to get the 1/4 wave ?
      Hmmmm......

  • @ronharden3390
    @ronharden3390 11 หลายเดือนก่อน

    How does it do

  • @DynoDieselWagon
    @DynoDieselWagon 2 ปีที่แล้ว

    Well / how is it for dx work ?

  • @hankchickenbonecoggins5468
    @hankchickenbonecoggins5468 3 ปีที่แล้ว

    9 feet 4 inch 102 to 102 got it.73's 214 from central Louisiana

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Take care 214. Thanks for watching, 73's from 151 SC.

  • @-einsamer_Wolf-
    @-einsamer_Wolf- ปีที่แล้ว

    Greatful Antenna DX goas Worldwide. 10/4from sourh Germany near lake Constanz. 13hn98 or einsamer Wolf how named is this Antenna ?

  • @michaeldebiase4432
    @michaeldebiase4432 3 ปีที่แล้ว

    Your a "Beast" John. I'm ready to have you build me an antenna for my #2 Location in (Staten Island) ✊

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      Thanks Michael. I'm hearing New York on my radio, Skip might be good today! Thanks for watching, 73's from 151 SC.

  • @shep6123
    @shep6123 3 ปีที่แล้ว

    Did you use a T connect the cables

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว

      I used a standard 75 ohm co-phase harness, and a barrel connector, to connect it to My 50 ohm coax. Thanks for watching, 73's from 151 SC.

    • @shep6123
      @shep6123 3 ปีที่แล้ว

      @@MowerJunkie thank You 73’s to you shepfc1

  • @TheRdeanpeek
    @TheRdeanpeek 3 ปีที่แล้ว

    what is the coax you are using ???

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      I used an rg59 75 ohm co-phase harness, and a barrel connector to connect it to My 50 ohm rg8x coax. Thanks for watching, 73's from 151 SC.

  • @MegaJunebug3
    @MegaJunebug3 2 ปีที่แล้ว

    Very clever!!!!

  • @martinrodriguez1272
    @martinrodriguez1272 3 ปีที่แล้ว

    Which is the front door? And rear?

    • @MowerJunkie
      @MowerJunkie  3 ปีที่แล้ว +1

      the signal radiates perpendicular to the boom. Thanks for watching, 73's from 151 SC.

  • @jonatassoares6562
    @jonatassoares6562 3 ปีที่แล้ว

    Ad some DBs on you video afterwards, nice video 73