N7EDW Edmonds Woodway ARC
N7EDW Edmonds Woodway ARC
  • Видео 18
  • Просмотров 20 176
Why Is The Moon So Hard? K7BWH
Ham radio operator K7BWH, Barry explores the challenges of Earth Moon Earth (EME) communications over the 6 meter VHF amateur radio band (50 Mhz). This presentation was made to the Edmonds Woodway Amateur Radio Club on July 11th, 2024.
Learn more about the club at edwaynet.com/
Просмотров: 89

Видео

Truth Tables for Amateur Radio WA7RSO
Просмотров 71Год назад
Dave WA7RSO presents his unique insight into digital electronics functions and truth tables. Along the way we also get a glimpse into Dave's experiences teaching for the Boeing Commercial Training Division and Space Center. For more information about the Edmonds Woodway Amateur Radio Club check out edwaynet.com/ 73!
Grounding and Bonding Discussion
Просмотров 942 года назад
The Edmonds Woodway Amateur Radio Club discuss HAM radio station grounding and bonding. Learn more about the club at edwaynet.com/
N7IAD Audio Test
Просмотров 332 года назад
Audio test with N7IAD on 28.350 MHz.
N6MTS Measuring Common Mode Current Chokes
Просмотров 9422 года назад
Mark Smith N6MTS (Smitty Halibut) presents "Measuring Common Mode Current Chokes" to the Edmonds Woodway Amateur Radio Club. In this fascinating session we learn what causes common mode current, it's ill effects on our amateur radio stations, and how to build and measure effectiveness of CMC chokes. Check out more amazing content at ruclips.net/user/SmittyHalibut and follow along on twitter: tw...
Worked All Germany 2021 N7PHY
Просмотров 392 года назад
N7PHY and KJ4ZTP practicing field operations and working the WAG (Worked All Germany) contest from Everett Washington.
GridTracker NK1I
Просмотров 3,8 тыс.2 года назад
GridTracker setup and operation presented to the Edmonds Woodway Amateur Radio Club by Roger, NK1I. The latest download file for GridTracker can be found at: Downloads | GridTracker.org Very many thanks to Roger for helping us get up to speed using GridTracker. More information about the Edmonds Woodway Amateur Radio Club can be found at our website: edwaynet.com/ 73 de N7EDW
Capacitors and Coils Subjected to Controlled Current Sources WA7RSO
Просмотров 343 года назад
"Capacitors and Coils Subjected to Controlled Current Sources" presented by Dave, WA7RSO to the Edmonds Woodway Amateur Radio Club on 6/2/2021. Follow along with Dave as he provides us a unique perspective to capacitance and inductance when considered from the perspective of controlled current. Reference material mentioned in the presentation can be accessed on Dave's website. solutions-for-edu...
CW Methodologies and Sound Bites WA7RSO
Просмотров 853 года назад
Learn CW with Dave, WA7RSO Resources and sound bites presented in the video can be found at Dave's informative 'Solutions for Education' web site. solutions-for-education.com/ CW Sound Bites. solutions-for-education.com/HamRadio/Morse_Code/Group_Selections_Sound_Bites.html Presented to the Edmonds Woodway Amateur Radio Club - 2021 edwaynet.com/
A Glimpse at Power Supplies WA7RSO
Просмотров 283 года назад
"Lest you think that power supplies is a simple and perhaps dull subject..." "A Glimpse at Power Supplies" presented by Dave, WA7RSO to the Edmonds Woodway Amateur Radio Club on 5/5/2021. Reference material mentioned in the presentation can be accessed on Dave's website.solutions-for-education.com/Presentations/Power_Supplies/Pwr_Sup Talking-Points.html Updated 5/7/2021 with additional informat...
Solo DXpeditions in the Pacific ZL1BQD
Просмотров 2653 года назад
Roly ZL1BQD shares his adventures traveling the Pacific islands as a one-man DXpedition. Presented to the Edmonds Woodway Amateur Radio Club on 8 APRIL 2021. Be sure to check out Roly's You Tube channel at ruclips.net/user/ZL1BQDRoly For more information about the Edmonds Woodway Amateur Radio Club, check our our website. edwaynet.com/ 73! - N7EDW
Getting Started with Arduino WA7RSO
Просмотров 333 года назад
Dave, WA7RSO gives us a high level overview of the Arduino micro-controller and some potential uses in amateur radio. Talking points and other resources may be accessed at Dave's web site. solutions-for-education.com/Presentations/Arduinos/Ardujino Talking Points.html
Full Wave Horizontal Loop Antenna N7PHY
Просмотров 14 тыс.3 года назад
One Ham's experience with a horizontal loop antenna. Setup for the 2020 Washington State QSO party (Salmon Run) in Ferry county. Presented to the Edmonds Woodway Amateur Radio Club on March 11, 2021 by N7PHY.
Reactance and Filters WA7RSO
Просмотров 513 года назад
Electronics refresher session with Dave WA7RSO. This month Dave talks about inductive and capacitive reactance, and various filter circuits. Dave's study material shown in the video can be found on his website. solutions-for-education.com/EDWAY_Topics/EDWAY_Topics.html Thanks for watching. 73! Edmonds Woodway Amateur Radio Club
Telegraph Key Collecting N7CFO
Просмотров 1013 года назад
Lynn Burlingame, N7CFO presents the joy of telegraph key collecting with the Edmonds Woodway Amateur Radio Club. For more information on the club see our website - edwaynet.com/
Ham Radio Roving with N7AME
Просмотров 643 года назад
Ham Radio Roving with N7AME
DC Challenge WA7RSO
Просмотров 443 года назад
DC Challenge WA7RSO
Decibels (dB) the Easy Way WA7RSO
Просмотров 553 года назад
Decibels (dB) the Easy Way WA7RSO

Комментарии

  • @00Widget
    @00Widget 8 дней назад

    Would 300 ohm ladder line work ? I ask because that’s what I have on hand .

    • @n7edwedmondswoodwayarc738
      @n7edwedmondswoodwayarc738 3 дня назад

      My understanding is that it would work fine. Haven't tried it yet myself. Let us know if you give it a try.

  • @dylanschulz2404
    @dylanschulz2404 5 месяцев назад

    Well I watched this video 2 years ago and finally got my loop put up. Here is how I calculated my loop. Bought 1000' of wire, buddy wanted 250', and I strung up the rest! Made kind of a diamond shape up at 30-50 feet fed from a corner with 600 ohm ladder line. Works better than anyone on these websites and studies led me to believe. Works good from 160-10 with my balanced tuner. Only run 100 watts. On 20 meters lots of times I only need to run 5 watts to break pileups. Yes there are probably nulls on transmit but I really don't think so on receive. I can hear what seems like everything which is a good and bad thing at times! 73

    • @12ppoundtest
      @12ppoundtest 5 месяцев назад

      Fantastic. That is a lot of wire you have up in the air. I was wondering how a really large loop would respond. Sounds like you are experiencing great results. I imagine there nulls and peaks, especially on the upper bands, but you can't argue with the results. Well done! - Ed N7PHY

    • @dylanschulz2404
      @dylanschulz2404 5 месяцев назад

      @@12ppoundtest Yes sometimes my other antennas outperform the loop on 17-10 meters, but not always. On 160, I can have QSO's with stations 4 states away with 100 watts. I was told with my signal on 160 all I would need is 300-500 watts to really break through during tough conditions. One other notable thing about big loops is that they are not as quiet as is generally reported. When A/Bed with my 218' endfed L, the 160-20m signals usually (almost always) have a better SNR on the loop. 17-10m can vary a bit on what is better. In my limited experience a "quiet" antenna is one that isn't receiving very well! 73 DE KF0BBU

  • @mineralsalts
    @mineralsalts 6 месяцев назад

    Back in the late 1960s, in Australia, and probably because it was expensive building, powering and maintaining remote UHF or VHF repeaters, government organisations and mining companies would install passive repeaters just like the reflectors near your camp ground atop ridges preventing line of sight communications. My personal experience is that you can sometimes point Yagi antennas tuned for the very low band mobile phone network frequencies (say 800 MHz) at large, shiny, rock boulders and achieve the same results and pretty decent data rates, out in the Australian bush. Beats the hassle of installing something (illegally) on adjoining public land!

  • @solo63137
    @solo63137 Год назад

    I'm interested doing one of these in my backyard... I will only be able to get it up 28-30' at most. Would i be better of going with an EFHW or an OCFD???

    • @12ppoundtest
      @12ppoundtest Год назад

      Hi Scott. I use an endfed halfwave at home (40 meter band ~ 67' with 49:1 transformer) It does a decent job of getting me on 40, 20, 15, and 10 meter bands with only a single support. If you have room and supports to put up a full wave loop you may experience some interesting gain in some directions. Not to mention potential lower noise pickup. Best of luck with the antenna! - Ed N7PHY

  • @woodskid4ever
    @woodskid4ever Год назад

    Excellent! Ty!

  • @cam-man7350
    @cam-man7350 Год назад

    Brilliant synopsis. 73 ZS5TC

  • @patrickbuick5459
    @patrickbuick5459 Год назад

    Good stuff. This was going to be my next attempt at a low noise antenna for urban apartment deployment. The comments back it up. I am currently running the DX Commander 12.4 Signature vertical and a 130 foot EFHW with Vhameleon Hybrid Mini as my two antennas. The vertical transmits better, but the wore receives better, at least on the low bands.

  • @Not_So_Weird_in_Austin
    @Not_So_Weird_in_Austin Год назад

    Very good step by step hints thanks

  • @Yosemite_Sam
    @Yosemite_Sam Год назад

    I have used a full wave 80m loop fed with a 2:1 current balun at the feed and RG214 coax to the rig and it is an outstanding performer. I did have open wire line for a while but when it broke I switched to balun and coax. No difference. Also when the copper wire on the loop eventually broke I went to thin Stainless cable. After some adjustments it worked great. Cheers VK5LB

  • @dougtaylor7724
    @dougtaylor7724 Год назад

    Wonderful material and well presented. I enjoyed this video very much. Thank you for posting.

  • @JonathanCreaser
    @JonathanCreaser Год назад

    Really informative video, thank you. 73, Jonathan M0XXJ

  • @JoeBurden
    @JoeBurden Год назад

    I have always heard that loops tune up all the band going higher in frequency. It is Dipoles that get every other. I could be wrong.

  • @thomaschildress360
    @thomaschildress360 2 года назад

    I use a 264 ft rectangular loop, height at each of the 4 corners varies, I worked 50+ countries on SSB this past winter alone, using any/all bands. Only need the external antenna tuner on 40 and 17 meters, others load up easily. Loops are great but take a load of experimentation.

  • @chrisbillings2050
    @chrisbillings2050 2 года назад

    Thanks for sharing that video Ed. I'm in the beginning stages of designing/installing a Full Wave Loop of my own. As you, I have wanted to try one of these for years....and have just recently gained access to enough space to make it happen. 73 from a former Woodway Sr. High School Alumni......the old Woodway Sr. High that is no longer. 73 de Chris WA7RAR

  • @wes11bravo
    @wes11bravo 2 года назад

    I've used a full wave horizontal loop cut for approximately 40m. Antenna elements were connected to 450ohm ladder line, into my shack, ladder line into a 4:1 voltage balun, then into an LDG IT-100 then into my IC-718. It worked really well, was more quiet than a vertical, enabled some great DX as well as good regional (200-300mi) comms. I'm getting ready to put up another one that I intend to connect directly at the feedpoint of the loop to the antenna lug and ground lug of an Icom AH-3 remote tuner, then a short coax run into my IC-718. I'm curious if anyone else feeds their horizontal loop this way...

  • @johndavis3615
    @johndavis3615 2 года назад

    I used a 144 ft loop with the "Q" section of 75 Ohm coax transfromer and 50 Ohm Coax feed to the shack. Low SWR across 40M amd high angle for strong signals out to around 500 miles, averaged 2 S units better than a halfwave dipole at the same height above ground. Have plenty of antennas for the other bands. 73...K8JD

  • @DK5ONV
    @DK5ONV 2 года назад

    Uncle Guenter waving a hand into WA-State, hope to make a contact with you P2P. 👍🙋‍♂

  • @avaughan585
    @avaughan585 2 года назад

    Great video! I'm gathering all the materials to do a horizontal loop, covert, in the woods, hopefully no one will see it! It's kind of my last option now, but hopefully it will be the solution!

    • @wes11bravo
      @wes11bravo 2 года назад

      If you use thin wire, it will be very difficult to see.

  • @Tommy_Boy.
    @Tommy_Boy. 2 года назад

    Very nice presentation and interesting to see. Thanks all! 👍📻⚡️

  • @DK5ONV
    @DK5ONV 2 года назад

    Whaaaat..you stole the information and pictures? That isn't fair at all... H I! I love Wire Antennas and always willing and ready to try out a new configuration to setup. Keep up the Good Work. 73's de Your FRiend Uncle Guenter from the German Frontier

    • @n7edwedmondswoodwayarc738
      @n7edwedmondswoodwayarc738 2 года назад

      Greetings Uncle Guenter! Yes, I confess the data is from smarter hams than me. Hopefully that was conveyed and credit properly given in the presentation. I have not yet built the 160 meter loop as mentioned but hope to give it a try in 2022. Thank you for checking in from the German frontier! 73 - N7PHY

    • @DK5ONV
      @DK5ONV 2 года назад

      @@n7edwedmondswoodwayarc738 This is going to be a beast of a loop antenna then. Yes I know you mean, the same here on me I am having so much stuff going on in my head that I want to realize and getting done. Just one thing at the time, little by little we going to make it. Happy veterans day & stay healthy. 73's de Your Friend Uncle Guenter

  • @danford7532
    @danford7532 2 года назад

    I use a 265 foot rectangle, corner feed, 4:1 balun , 450 ohm ladder line 20 feet up on metal poles. I have worked the world with this, out performs my 2 element 20 meter beam, verticals and long wire.

    • @timbacchus
      @timbacchus 2 года назад

      Just what I have put it up 25 years ago when my tower and beam blew down. And never have had to do any maintenance on it. Only thing I have added this year is an amp. Love it.

    • @davidc5027
      @davidc5027 9 месяцев назад

      Essentially what I did... It's just a length of wire in a loop-ish shape, fed with 450 Ohm.. Forget about resonance, don't need it, and start operating. The disadvantage is these antenna can be temperamental, but when they are dialed in, they are wonderful.

    • @dandypoint
      @dandypoint 8 месяцев назад

      Note that the current distribution was for a full wave loop. On harmonics it gets more complicated. A dipole over real ground has about 6 or 8dBi of gain. Two straight dipoles fed in phase has gain that depends on the spacing. With only quarter wave spacing that is pretty small. Bending the ends of the dipoles reduces that to like maybe only 1 dB over a single dipole. On higher harmonics it will have more gain but also more nulls. I have after many years ended up with multiple dipoles, one broadside to Europe, one broadside to South America and one East/West. I can frequently see one or more S-unit improvement as I switch between the antennas!

    • @davidc5027
      @davidc5027 8 месяцев назад

      @@dandypoint It's been my experience nulls are not as pronounced as they are portrayed to be.

    • @dandypoint
      @dandypoint 8 месяцев назад

      @@davidc5027 it all depends on the particular antenna and height above ground. In my case having a second 10 meter dipole at 40 feet sure made a big difference. Stations I could not hear off the end of one were two S units or so better on the other one. Having the second dipole on South America to fill in the null on the first dipole, which was pointed generally on Europe made a huge difference to me. I ended up putting up a third 10 meter dipole East/West for last years 10 meter contest. Had a good bit of overlap in the pattern. Probably just two would have been good enough if I could get them at right angles. This year I have now added a second and third 20 meter dipole for the DX contest. The East one is doing great into Africa and KH6 direction compared to my single NW/SW direction. However the nulls on a relatively low 20 meter dipole are not as deep as on the 10 meter dipole as the 20 is only half as high as the 10 for the same height in feet above ground. But it is was still worth my effort and I am pretty satisfied.

  • @mattadams7660
    @mattadams7660 2 года назад

    The answer is still 42. Because the original question wasn’t a number question.

  • @OllieVK
    @OllieVK 2 года назад

    Switch the copper antenna wire for 316 stainless, it'll drop the SWR even more.

    • @danford7532
      @danford7532 2 года назад

      Stainless wire is higher resistance and more lossy than copper, will lower the performance!

    • @wes11bravo
      @wes11bravo 2 года назад

      Copper clad steel seems like a good choice.

    • @OllieVK
      @OllieVK 2 года назад

      @@danford7532 FT8 18,000km on 40m @ 10W, 17,000km on 15m, and 15,000km on 10m says it's just fine.

    • @Yosemite_Sam
      @Yosemite_Sam Год назад

      Stainless should have poor radiation characteristics. In practice it doesn't make any difference to performance. I have tried both copper and Stainless full wave 80m loops and equal performance. A lot of marine antennas are Stainless for corrosion reasons.

    • @seeharvester
      @seeharvester Год назад

      @@danford7532 Does that mean my mobile, quarter wave stainless steel whip would be better if it were copper clad?

  • @12ppoundtest
    @12ppoundtest 2 года назад

    Thank you Roger for getting us started with gridtracker. My new favorite video!

  • @gregn3gds172
    @gregn3gds172 2 года назад

    So I'm on a hill, would the loop be parallel with the ground? Or actually level horizontally? Said another way, would it be ~50' off the ground at each corner? Or would it be 50' off the ground at at least 1 corner, but greater than 50' at the low point in my yard? I think that it's supposed to be level horizontally.

    • @12ppoundtest
      @12ppoundtest 2 года назад

      Hi Greg. My understanding is the antenna should be level, equal height at each corner, and over level ground to take advantage of the radiation patterns displayed. That said, my installation was on a hillside, not on a perfect plane, and not shaped equally on all sides. On 80 meters it seemed to do equally well in all directions, which makes sense since it's a bubble of RF pointing mostly upward. On the harmonics the antenna did really well in some directions and less well in others. I'll be using it again in a few weeks for the Washington state QSO part (Salmon Run) and may report back if it works well. Thanks - Ed N7PHY

  • @peterock8217
    @peterock8217 3 года назад

    Looking at that spectrum analysis, a 9:1 unun will work better, I tried a 4:1 and got the same analysis, I had forgotten that a 4:1 transformer is for coax fed loop, if you use ladder line your at 450, 460 ohm at the feed, so you need a 9:1 unun transformer, just three wire turns on the ferrite core, instead of 2, I don't even use a tuner. 0 sweet on all bands, zero losses, try it next time

    • @n7edwedmondswoodwayarc738
      @n7edwedmondswoodwayarc738 3 года назад

      Thanks for the intel Peter. I'll experiment with the 9:1 and 4:1 transformers next time out and report back.

    • @peterock8217
      @peterock8217 3 года назад

      @@n7edwedmondswoodwayarc738 Glad to help, and lol I just realized that you did the salmon run on the west coast, I did the east coast salmon run on the salmon river up in Polaski NY coming off of Lake Ontario 👍 Great fishing, good luck and 73's

  • @peterock8217
    @peterock8217 3 года назад

    Salmon run 2020, cool I was there also, hopefully will be there this year again!!! I did the same antenna setup at home. full wave delta, fed at the end, fed with homemade ladder line, about 460 ohm, except whith a 9:1 transformer and I get 0 ohms all across the bands, 👍 N3WUB

  • @bangkithutajulu8851
    @bangkithutajulu8851 3 года назад

    i've tried this loop skywire, it works very good

  • @chrisbartlett6022
    @chrisbartlett6022 3 года назад

    Wow, just realised I hadnt Subscribed, soon fixed that :-)

  • @ZL1BQDRoly
    @ZL1BQDRoly 3 года назад

    My pleasure to meet you all and share some of my DXpedition adventures. Cheers best 73 & DX from New Zealand....