5/8 Wave Vertical Antenna for 10 Meters

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  • เผยแพร่เมื่อ 2 ม.ค. 2025

ความคิดเห็น • 119

  • @CowboyPilot79
    @CowboyPilot79 หลายเดือนก่อน +1

    All i can say is holy moly!
    Been wanting to do a 10m vertical, finally settled on this. After my 4:1 came in i got a 24' painter pole from lowes and some 20 ga wire. Measured the main element a little long and twisted the end and pulled four 17' counterpoise wires. Put it up and i thought my G90 was busted because the swr scan barely moved off the bottom with the atu off. Crazy! Unfortunately middle of the night so nothing on 10m but cant wait to try it in the daylight!

  • @SuperCapsfan101
    @SuperCapsfan101 หลายเดือนก่อน +2

    Ham Radio Galloping Gourmet strikes again! Been having good times on 10M with my classic Radio Shack HTX-100 in my car with a hamstick. Also have worked some picknic-table portable at a local state park, using the HTX-100, hamstick mounted on a cast-iron charcoal grill, and a Harbor Freight jump box for power. No problems working Europe! ! 73 from Mike K3CXG WHO DAT and bon appetit!

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  หลายเดือนก่อน

      @@SuperCapsfan101 awesome! 73 my friend

  • @MM0OPXFieldRadio
    @MM0OPXFieldRadio 3 หลายเดือนก่อน +10

    Walt, I've done this twice (17 & 10) but building purpose built L/C match's. I looked back through my notes and pictures. The raw feedpoint impedance on both is circa R 80, X - 380. Big reactive element.

  • @Aussat
    @Aussat 3 หลายเดือนก่อน +4

    Brilliant Walt as always, great antenna, great results! I enjoy the 10 meter band myself! Thanks again for the video, Oh and the food is always something I look forward too now Hi Hi

  • @bevo65
    @bevo65 3 หลายเดือนก่อน +5

    Can't get enough antenna experiments OR food. Thank you, Walt! 🤘🤠

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +2

      Thank you for watching and commenting my friend!!!!

  • @markh1938
    @markh1938 3 หลายเดือนก่อน +2

    Channel gets better every week Walt. And have to say I’m envious of all the road side food shacks. Well done.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thank you so very much!!! 73, Walt

  • @JD144-
    @JD144- 3 หลายเดือนก่อน +4

    Dang it, now I want another radio! Enjoyed the video.

  • @christophermarshall5765
    @christophermarshall5765 3 หลายเดือนก่อน +4

    That antenna is great. Works well.

  • @robertmeyer4744
    @robertmeyer4744 3 หลายเดือนก่อน +2

    Very good Walt ! I have been doing that 5/8 wave lately. I went at it a different way. I started out with the 25 ft and used a nano VNA H4 for a swr sweep and smith chart. I kept shorting to I got the dip where I wanted. I ended up with a SWR of 1.1 on 28.074 MHZ . with good band with and Z very close to 50 ohms. I just went on the air with a QT 60 and made a ton of contacts . SSB and FT8 . all on battery . I made it a bit longer it tuned CB like 1.3 swr the dip was just out side the CB band so I left it. Lots OF DX . Jamecia ,ETC. Them made it a tad longer on tuned 12 meter like 1.4 SWR and left it. Worked many DX . I just left my wire long. I have a carabiner at end I clip to pole . I fold back extra wire and twist it around a bunch of times. I get 3 bands about 5/8 wave on 1 wire and that walmart speaker wire . I have a bunch of 17 FT ground radials like 16 on the ground spread out. For 20 meters 5/8 wave is appx 43 FT into a 4:1 . I did that. had to slope from short 10 meter pole. I got 1.7 SWR and just hit tune on my IC 7300 and did a POTA. over 100 contacts SSB and like 30 FT8 from all over. Quite the RX antenna . the 10/11/12 5/8 is the best RX antenna so far. I have done 15 and 17 meters as well. I cut a tad long and shorten to tune. Just like a end fed half wave . tune for the dip in the band you want. 4:1 UNUN is more efficient that the 49/56/64:1 UNUN. That where the boost in RX comes from. I went for best match of 50 ohms instead of exact length of 5/8 . worked great . VNA does a wide sweep so you can see that SWR dip better. Just a outher way to do 5/8 wave tune. What I did and worked for me over dirt . 73

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thanks! I really need to get a good antenna analyzer and start putting in a little more work on these builds LOL

  • @HighDesertAdventurer
    @HighDesertAdventurer 2 หลายเดือนก่อน +1

    Just went out and built one. Testing right now. Swr as close to 1:1 as I could wish for

  • @robertheberling3522
    @robertheberling3522 3 หลายเดือนก่อน +1

    Wichita! Nice! I'll be on the air in Wichita one of these days.

  • @brettchurchyard5018
    @brettchurchyard5018 2 หลายเดือนก่อน +1

    Great antenna, food looked great so did the beer, all the best from Australia

  • @bat-fq6nl
    @bat-fq6nl 3 หลายเดือนก่อน +2

    Great video Walt! I will build this soon!

  • @hughpatterson1480
    @hughpatterson1480 3 หลายเดือนก่อน +2

    Thank you Walt, for another great video. I've wanted to try a 5?8 wave antenna. I'll throw one together later today. !0-meters has been up and down but when it's up, it's great! I made a contact in Scotland yesterday from California with my G90 and EFRW antenna. My home made Ununs are working really well. I did a lot of research on building them and discovered some small mods you can do with the toroid which have given me better results. It's a great time to do HF radio. I am glad that Tech license holders can get onto 10-meters because there is nothing better than HF! Thanks for another great video...73...Hugh...KN6KNB

  • @FIL357
    @FIL357 3 หลายเดือนก่อน +2

    Thanks Walt, another good one.👍😁. Phil, 🇬🇧

  • @michaellanders1601
    @michaellanders1601 3 หลายเดือนก่อน +1

    I don't know what I like more the attenaa or the food great stuff Walt keep it up

  • @respectbossmon
    @respectbossmon 3 หลายเดือนก่อน +1

    Top o' the Bay is one my favorite spots when I visit RI. Good food and not too expensive. The clamcakes are very good.

  • @phildurall7466
    @phildurall7466 3 หลายเดือนก่อน

    A win all the way around Walt! The bar is the best! We always go to it instead of a table. Once you get to know the bartenders, and become a regular, there is no better service! Enjoy my friend!
    73 - KF6IF

  • @digitaldreamer5481
    @digitaldreamer5481 3 หลายเดือนก่อน

    Aloha Walt, I took my son to the HNL airport the other day and taking my wife to that same airport tomorrow, that will give me a week to play radio or to learn to use some new radios.
    In fact, HRO and DX Engineering had a great sale of a $100 off of the new Yaesu FTM-200DR with C4FM and the Air band with 2m and 70cm.
    I’m just waiting for the mailman to deliver it today without the next hour or so.
    I can’t wait to open that box and check it out. There is a few C4FM repeaters in the area that I want to try this new rig on and see if I get some good signal reports.
    I will be on 10 meters on Friday at 28.310 mhz where the locals hangout before jumping up to 28.420 mhz, that seems to get a lot of traffic after 11am HST.
    Great video again and it looks like I need to order some more 18ga AWG speaker wire to use with my Cobra Head connectors. 👍

  • @Keith_WB2VUO
    @Keith_WB2VUO 3 หลายเดือนก่อน +2

    Walt: My calculations for a 10 meter 5/8-wave antenna give me a length of 21' 6". That's using the formula L = 610/F(MHZ), originally found in the Editors & Engineers Radio Handbook back in 1966. The formula is based on 984*(n-0.05). With "n" being 0.625, this comes out to L = (984*0.62)/F(MHz) for a length of 21 .481 feet. Round it to 21 1/2 feet.
    In practice, 21 feet (+/-) is going to put one in the ballpark, myself, my Go-To portable antenna is 29 feet with a 13 foot counterpoise. I call it a 15 meter 5/8 vertical, and with no ocean near, it works fine on glacially-formed hills in western NY and PA.
    Keep up the good work and CU from the next park!
    73, Keith, WB2VUO in Amherst, NY

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Interesting, I took the lazy way out and used my antenna tool app which gave me the 20.6" number. I really need to go back and see why the app generated that number, maybe they have some factor in there. After reading this comment I inputted the frequency and surrounding frequencies several times and still got the length. Thanks for the comment, I need to see what the heck the Antenna Tool App is doing. 73, Walt

  • @stevenbailey5707
    @stevenbailey5707 3 หลายเดือนก่อน +4

    Fantastic video Walt. I just got back into AR after 43 years. Back then I was a novice on CW. I now have my General. Two days ago I went up Mt. Monadnock in S. NH. to a height of 2500 Ft. Spotted myself with Parks on the Air, and made 2 QSO's. Used a Yaesu FT5D handheld. Watching a few of your videos on Sunday morning gave me the FINAL incentive. It was a blast. And the views were epic. I only live 10 minutes from the Mt. Hhhmmm...what type of lightweight QRP Trans. could I take up there. There are so many options. Gosh I love ham radio. I'm hooked again. Thanks Walt.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +2

      @@stevenbailey5707 thanks! Look into the Xiegu 5105 (the radio I did the SWR scan with in this video). It’s a great little QRP radio with an internal battery and ATU. Would be perfect for that. 73, Walt

    • @stevenbailey5707
      @stevenbailey5707 3 หลายเดือนก่อน +2

      ​. Aweee. Thanks for the reply and thoughtful recommendations buddy. And YES! This last video format is actually perfect. Keep it simple (somewhat) and have fun. Keep it up.

  • @otrdriver6767
    @otrdriver6767 3 หลายเดือนก่อน

    Thank you for the radio information and the food review. I enjoy both hobbies equally.

  • @F4LDT-Alain
    @F4LDT-Alain 3 หลายเดือนก่อน +1

    Hey Walt, yet another antenna to put on my "to try out" list now that the 10m band shows very nice openings. I heard the VE3MMX repeater in FM on 29.640 while in mobile just close to my home the other day, loud and clear. My gear wasn't set up to try getting in so I haven't tried.
    Thanks for another great tip.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thank you! I really need to get setup for FM repeaters soon. 73 my friend

  • @JamesHindsW5ATJ
    @JamesHindsW5ATJ 3 หลายเดือนก่อน

    Your Oakland looks a lot nicer than the Oakland I use to live near 😂 Great video Walt. I have that antenna and radio on my wish list. Thanks, Jim

  • @jordanhoffman2605
    @jordanhoffman2605 3 หลายเดือนก่อน +1

    Sure do learn a lot on this channel. Now I know what a stuffy is.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thanks! yep just a stuffed clam. They are so good. 73, Walt

  • @corsavic1
    @corsavic1 3 หลายเดือนก่อน +1

    Walt hi mate another video always love them keep filming mate take care

  • @johnnorth9355
    @johnnorth9355 3 หลายเดือนก่อน +2

    Wow loved the QRP QSO. Gonna get through one of the days. 73 M7BLC.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      That was a great contact. I got real excited when he said he was 5 watts.

  • @Sean_Dunn
    @Sean_Dunn 3 หลายเดือนก่อน +1

    Hey Walt, great video! My dad and I have been using home-made ten meter j-poles here lately on 10, having great luck with them! They’re built from ladder line and small gauge wire, so maybe it would be a fun project for the future.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thanks! yes I need to build a J Pole for sure.

  • @n74jw
    @n74jw 3 หลายเดือนก่อน

    Wow! I grew up in RI and have visited Oakland beach many times

  • @stevesummersell_K4WXX
    @stevesummersell_K4WXX 2 หลายเดือนก่อน

    Love the ham bucket 😃

  • @Mandarin110631
    @Mandarin110631 3 หลายเดือนก่อน +2

    Thanks Walt!

  • @markviers998
    @markviers998 3 หลายเดือนก่อน +1

    Not having grown up close to any seafood places I don't know what those stuffys were but that looked like a great combo of a meal. Looked like the 5/8 did well.

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Stuffies are clam meat mixed with breading and spices and then stuffed back into the shell and baked. They are so good!

  • @dandypoint
    @dandypoint 3 หลายเดือนก่อน +1

    There are ways to calculate ( maybe estimate is a better word) the impedance on an antenna as you move away from the center on a halfwave wire. You divide the impedance at that point by the cosine squared of the number of electrical degrees you are from that point.
    For example if the center point impedance on a dipole was 75 ohms, moving off center 45 degrees (1/8 wave) you would see an impedance of 150 ohms. I am wondering what SWR you measured on your coax using the 4:1 transformer. The counterpoise does add a bit of complexity or uncertainty to my simplified formula above but I would expect it would still be close.
    Food looked great!

  • @duffyoung5735
    @duffyoung5735 2 หลายเดือนก่อน +2

    Walt, it’s totally unfair that you’ve added food to your channel! Now I have to click on every video😂. Great job. K1DLY from Texas.

  • @KE4NAB
    @KE4NAB 3 หลายเดือนก่อน +2

    Walt, when is the book coming out? I would absolutely love to have one!!! 73's Ke4nab

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +1

      Publishing deal is done, it should be out the first of the year. I’m working hard to get it done! 73 my friend!

  • @BLACKHEAT1028
    @BLACKHEAT1028 3 หลายเดือนก่อน +2

    Another quality video, also love your drawings/diagrams.........since I can't even do stick figures

  • @Andrew-yx7sf
    @Andrew-yx7sf 3 หลายเดือนก่อน +1

    I like the Red Chowder and dip in the Clam Cakes.

  • @gregmihran8616
    @gregmihran8616 หลายเดือนก่อน +1

    Hey Salty Walt, I love seeing your homebrew antennas, thanks for sharing! I design and share a lot of homebrew portable quarterwave and halfwave antenna plans, too. I'm curious ... why did you NOT use an RF choke at the LDG 4:1 UNUN? Doesn't that make the coax shield part of the antenna system (not ideal for preventing CMC or RFI)? Also, how long of a counterpoise do you think is necessary? I know you had it run into the water, but what if it is deployed on dry ground? Keep up the great work my friend 😀73 KJ6ER

  • @rclark999
    @rclark999 3 หลายเดือนก่อน +1

    Walt, I’m one of your new patreon supporters. Regarding the feed point impedance, wouldn’t your antenna analysire tell you that value?
    Love your videos!
    Ron W2ABX

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +1

      Thank you for the support! Yes a good antenna analyzer would tell that. I just don't have my VNA with me here in Rhode Island and the X5150 only does SWR.

  • @jrfoleyjr
    @jrfoleyjr 3 หลายเดือนก่อน +1

    Ahhh Cue Ess Elll Cue Ess Elll good buddy, no doubts about the cb heritage good buddy! Thats a big 10-roger, wall to wall.

  • @duaneshuster6366
    @duaneshuster6366 3 หลายเดือนก่อน

    Wore ant seems be working
    Try som FM work 29.600 or am 29.000 it be nice to see.
    I have a Lincoln plus too solid lil radio great video .

  • @DrDonPjr
    @DrDonPjr 3 หลายเดือนก่อน +1

    I’ve been having good success with a 82/18 ocf for qrp

  • @americaswayout4489
    @americaswayout4489 หลายเดือนก่อน +1

    Walt, what does your experience tell us as to how to use a 30 ft extendable metal flag pole. Maybe bottom feed using a balun? I have a 4/1, a 49/1 or 64/1 ? Any ideas will be appreciated. I have a G90 or the new 80 watt 10 -15 meter unit made by Anytone. I have several tuners, plus a IC703 with a tuner extender so matching should be doable?

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  หลายเดือนก่อน

      Bottom feed and extend it to 29’ and use a 9:1 or extended to 25’ with that 4:1 and you’ll have a great antenna.

  • @PhilON4VP
    @PhilON4VP 3 หลายเดือนก่อน +1

    Hi Walt, great performing 10 meter antenna. Take off is pretty interesting at around 16° I think which is perfect for DX. 73 Phil ON4VP (Hope we make qso one day ;-)

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thank you Phil, I'm looking forward to that QSO! 73 my friend

  • @KO4VNX
    @KO4VNX 3 หลายเดือนก่อน +2

    Tabasco, my old friend! Okay, this is glorious food! And that antenna, I just got two spools of wire delivered so I can build more antennas!!! Going to give this one a try!

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +1

      Roger that! this is a great antenna. 73, Walt

  • @dalehilltopfarm
    @dalehilltopfarm หลายเดือนก่อน +1

    Walt, I live near salt water. Would there be any advantage of placing one of the counterpose lines in the water on a sloper antenna?

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  หลายเดือนก่อน

      Just get it close and you will see results

  • @bobkopf227
    @bobkopf227 3 หลายเดือนก่อน +1

    Good morning Walt, the food looks great but are there any good steak houses in the area?

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Yes there are several, I'm just a coastal seafood guy

  • @bduff5004
    @bduff5004 3 หลายเดือนก่อน +1

    Turning into a regular Rhodie!! Tried NY System Weiners yet Walt? Just remember order 3 all the way small fry and a coffee milk. Like you were born there!!! lol

  • @bodstrup
    @bodstrup 3 หลายเดือนก่อน +2

    Walt ! Everything works for you at the beach ! You need to move 20K inland, to a place with bad ground conductivity - and repeat 😅

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +2

      Well, there is a reason the channel is called “Coastal Waves & Wires”. If you go back through my catalog you’ll find me 20K inland in Poland for a couple years building antennas though.

    • @stevenbailey5707
      @stevenbailey5707 3 หลายเดือนก่อน

      I remember you showed in a video of when you were in Poland. It was the random length of wire sloping up toward the house. You said you made some DX contacts. Of course. I loved how you explained In another video, recently, the benefits of using an antenna at the beach. It's quite A unique and very cool phenomenon. There are so many great places from maine through mass, through rhode island and connecticut along the coast, where people can do exactly what you're doing. For me, it's what you're showing as an idea of going to the coast or hanging out at the beach. At a really nice area and getting to do our hobby with potentially amazing results. Then hit a little coastal restaurant nearby and samples.Ome of the local seafood fare. KB1SEP. 73 @COASTALWAVESWIRES

  • @JonathanPhillips27
    @JonathanPhillips27 3 หลายเดือนก่อน +1

    I have been looking for the right match for a 5/8th wave. Will wind up a 4:1 and take it to the park. Thanks! W4OMX

  • @richardcarroll2605
    @richardcarroll2605 3 หลายเดือนก่อน +2

    Love my Lincoln 2 but mine does about 85 Watts but it hasn't seen daylight since I got my 991 a

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +1

      I really like mine as well! 73, Walt

  • @johnlougheed2095
    @johnlougheed2095 3 หลายเดือนก่อน +2

    were did u find that nice old hat.

  • @WECB640
    @WECB640 3 หลายเดือนก่อน +1

    "DX in the mornin' sun, I'll be on the air when day is done. Watchin' the signals roll in, while I talk to all my friends again." 73 OM

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      hahahahaha 73 OM

    • @GoAmateurRadio
      @GoAmateurRadio 3 หลายเดือนก่อน

      @@COASTALWAVESWIRESK0KLB could put those lyrics to music

  • @ErikTheVikingMechanic
    @ErikTheVikingMechanic 3 หลายเดือนก่อน +1

    Working very well this 5/8's
    DX Commander expedition 10m (new) pole I have two of them, they are great light and compact. I can remove the top 6 sections to get a stiffer 7m pole.
    Bar food is often better it's made with the kind of passion I like 😂 "just get the food out to hungry man", not fine dining and pretty looks.
    73
    M7LDK

  • @vk4foo
    @vk4foo 3 หลายเดือนก่อน +2

    Good one mate. How about hanging 5/8 for 21Mhz off at the same time as 28Mhz? (duel band)
    or have a stubb hanging of the side of 21Mhz? 👽Alien in Asia 👽 F👀

  • @reggie9997
    @reggie9997 3 หลายเดือนก่อน +1

    Does the water in relation to the antenna make it more directional?

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Typically no but it sure seems that way during this activation.

  • @mikesmith5139
    @mikesmith5139 3 หลายเดือนก่อน +1

    Good job! 73 Mike

  • @jimtrussler9232
    @jimtrussler9232 3 หลายเดือนก่อน +1

    How long was your counterpoise?

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +1

      About 5 meters

    • @jimtrussler9232
      @jimtrussler9232 3 หลายเดือนก่อน

      @@COASTALWAVESWIRES Thanks for the rapid reply!

  • @kennethblackwell1137
    @kennethblackwell1137 3 หลายเดือนก่อน +1

  • @EA8CVZ
    @EA8CVZ 3 หลายเดือนก่อน +1

    Felicidades por tu antena. ....EA8CVZ.

  • @45Unit
    @45Unit 3 หลายเดือนก่อน +1

    Oyster happy hour? Oh boy. Now I know where to find you. lol

  • @UDX-3030
    @UDX-3030 3 หลายเดือนก่อน +1

    Chowda 😎

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      It was good!

    • @UDX-3030
      @UDX-3030 3 หลายเดือนก่อน

      @@COASTALWAVESWIRES usually is Walt !

  • @Pathological_Flyer
    @Pathological_Flyer 3 หลายเดือนก่อน

    I wonder how a shopping-cart would work as an antenna ?

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน +1

      Mike K8MRD just posted a video on that at his Ham Radio Tube channel. Just saw that this morning.

    • @Pathological_Flyer
      @Pathological_Flyer 3 หลายเดือนก่อน

      @@COASTALWAVESWIRES me too, saw it last night - funny stuff - we ALL would get a big laugh if you two started a little competition... "one man's trash, is another man's antenna." 🤣

  • @miker7962
    @miker7962 3 หลายเดือนก่อน +1

    Absolutely super cool video once again 👍 de WE0H ..

    • @COASTALWAVESWIRES
      @COASTALWAVESWIRES  3 หลายเดือนก่อน

      Thank you so much and thank you for this radio my friend!!!