Posts

Showing posts from March, 2023

Multiband EFHW Base Antenna with 49:1 UnUn (homemade).

Image
Thanks to Paul (OM0ET) for this vital accessory for all End Fed Halfwave Antenna Systems--a 49:1 UnUn. Paul takes us step-by-step through the design, building, and testing phase of this UnUn. As designed, this UnUn will enable operations on the 40m-20m-15m-and 10m Amateur Radio Bands. If you can't see the video, please insert this title URL into your browsers search box:  https://www.youtube.com/watch?v=z-_2aBqcjI8 Here are a few comments from Paul (OM0ET): 12,094 views Dec 14, 2022 #antenna #homemade #efhw CORRECTION: Toroid core is used FT240-43 (not 140-43) My new home made Multiband End Fed Half Wave Antenna which has been designed mainly for 40M band (7MHz), but this antenna tunes also on 20M-15M-10M without any traps or additional coils. This antenna is made for 100W RF input power and is 19,129m long. SWR on 40M band is 1:1.1 within the phone section and less than 1:1.5 within a whole band. The 49:1 UNUN box is weather proof and all holes for components I drilled were

DIY 10 Meter Dipole for under 10 Dollars.

Image
You don't need much in the way of money or equipment to build a "quick, cheap, and easy" dipole antenna for the 10 Meter Amateur Radio Band. According to Mike (K8MRD), you can design and build an efficient 10 meter dipole antenna for under $10 (USD).  Almost any kind of wire can be used for this simple antenna. Just follow the suggestions in this video and you'll be on the air in no time. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=jHyEMdHVMWc ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

How to build an emergency UHF Ground Plane Antenna

Image
Thanks to the "SurvivalComms" video channel for this simple, effective UHF emergency antenna. Most of the materials for this project can be obtained at your neighborhood hardware and building supply store.  You may have most of the items in your "junk box."   Make one of these field expedient antennas for your "go-box" and put it in your vehicle for your next portable operation. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=JgNjZwouCx8 Here are some comments from the video: "When all else fails and you need to get on the air. Building a UHF ground plane antenna out of RG6 TV coax, a BNC bulkhead connector, duct tape, and a multi tool." ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Vertical Extended Double Zepp Antenna For 2 Metres (and more).

Image
If you want strong, omnidirectional performance on the Amateur Radio 2-meter band, then please try this vertical extended double zepp antenna from Peter Parker (VK3YE). The antenna is easily made from locally available materials and can be used on the 6-meter band as well. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=Q-t8NBL67fc Here are some comments from Peter (Vk3YE): A very simple but very good omnidirectional vertical antenna for VHF FM simplex and repeaters. But that's not all. What is it? It's a extended double zepp antenna for 2m. And it does 6m as well. Watch to find out how easy one is to build. PS: If you liked this video please consider supporting Amateur Radio VK3YE by: * Subscribing on YouTube, * Checking my books page at https://books.vk3ye.com * Shopping on Amazon via: https://amzn.to/3iiDQXv , or * Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll

How to make a 2 meter Yagi and get 7db for 7 bucks.

Image
If you need a simple, inexpensive 2 meter antenna with significant gain over a dipole, then please consider this project from Chuck (KK6SUY). The antenna is based on a "QST" article published in April 1993. Just follow the suggestions contained in this post and you will soon have an antenna just as good as some commercial products. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=cD8dWC13ckU Here are some comments from Chuck (KK6SUY): In this video I show a article from QST magazine that is from April 1993 on how to build a 2 meter Yagi for 7 bucks. With inflation you might actually be able to build it for the price of a Fast Food Meal Lol. article; http://www.arrl.org/files/file/Techno... As an Amazon Associate I earn from qualifying purchases. Aluminum arrows: https://amzn.to/307NdF1 Nylon Threaded Rod: https://www.mcmaster.com/threaded-rod... Threaded Rod: https://amzn.to/3wvGh Jackery 240 sol

How I got on 630 meters.

Image
  " The lack of commercial amateur radio equipment for the bands below 160 meters forces hams to get creative, and there are as many ways to get on 630 meters and 2300 meters as there are hams operating on those bands. Mark, AE2EA, shows the approach that he took to get on 630 meters by utilizing a repurposed non directional beacon, a modified HP downconverter, and a reconfigured 80 meter dipole antenna." If you enjoyed this video, consider becoming a member of the Antique Wireless Association at: https://antiquewireless.org/homepage/... Subscribe to the Antique Wireless Museum channel and you'll receive news of our latest video uploads. If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=zGWTdNh75CE Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).

HAM RADIO: The Coat Hanger Antenna 2m/70cm Dipole.

Image
  Here's a simple, effective 2m/70 antenna that can be made from two metal coat hangers and some materials found in your "junk box." Mike (M0MSN) does an excellent job of converting two ordinary objects into a fully functional VHF/UHF antennas. The antenna is easily concealed and would make an excellent stealth antenna for radio amateurs living in deed-restricted apartments and homes. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=PniH4ua4p50 Here are some comments from Mike (M0MSN); A really quick antenna for 2 metres and 70 centimetres, made from just 2 metal coat hangers and a small length of strip connector just add the fun. Next time coax traps on the DX commander I do hope you enjoy it and subscribe for more.. Many thanks Mike - M0MSN To get notified of the next upload .click that bell and subscribe.. ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).

How I built a simple 160m top band transmitting antenna for L4.50 that actually works!

Image
Here's an intriguing way to get on the 160 meter Amateur Radio Band using a small urban lot and a very inexpensive cash outlay for parts. Clint of "Oxford Shortwave Log" shows how he designed, built, and tested this limited space antenna for "Top Band." If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=LXCaHcGkAEM Here are some comments from Clint: Hi there, this video demonstrates how it's possible to build a transmitting antenna for top band that doesn't involve 100's of metres of wire or significant height - and it actually works pretty well. Thanks for watching. Keep safe. 73s ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

How To Put Up A Portable Antenna | SOTApole

Image
Thanks to Richard Newstead (G3CWI) for this "step by step guide" to erecting portable antennas using "lightweight telescoping masts." Richard is the co-founder of the SOTA Program (Summits On The Air), and he brings years of operating in the field to this video. Richard's presentation is clear, direct, and "down to earth", and is easily understandable by both newly licensed radio amateurs as well as experienced hams. If you can't view the video, please insert this title URL into your browser search box Here are some comments from Richard (G3CWI): Lightweight telescopic masts have become the go-to way for supporting antennas for portable ham radio operating. This video shows how one is used to support a dipole antenna. I do not monetise my videos on YouTube so you don't have to watch their adverts. That means that, unlike most others, I earn nothing from my channel. If you would like to encourage me and support my work, feel free to buy me a be

10 Meter Double Bazooka Dipole, RadioWavz Antenna, Antenna Review with on-air contacts.

Image
If you want a 10 meter antenna that exhibits some gain and high bandwidth, please try this "Double Bazooka Antenna" from RadioWavz. In this video, Eric Hofer (KJ4YZI), shows you how to set up and test this antenna using on-air contacts.  This antenna should be added to your SOTA (Summits On The Air) and POTA (Parks On The Air) field operations. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=PKamEK2-0gs Here are some comments from Eric (KJ4YZI): Check out the performance of this RadioWavz 10 meter HF double bazooka dipole.. I am very familiar with the bazooka design. This is a great option for portable and home deployment for technician class operators, as well as general and extras.. Links below: SUBSCRIBE to HamRadioConcepts https://www.gigaparts.com/radiowavz-1... https://www.radiowavz.com/ https://www.gigaparts.com/nsearch/?lp... https://www.gigaparts.com/nsearch/?lp... https://www.gigaparts.c

80m Lazy Loop Super Multiband Antenna.

Image
If you have the space, this 80 meter "Lazy Loop" works as both an outstanding NVIS (Near Vertical Incident Skywave) antenna for the 80/40 meter Amateur Radio bands, as well as a gain antenna for 20 meters through 10 meters. Tim (G5TM) incorporates most of the design features from the original project of Rick (DJ0IP) to produce a "super multi-band antenna" for the radio amateur. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=6ycBtbIKOqI Here are some thoughts from Tim (G5TM): Thanks again to Rick, DJ0IP for publishing details of this antenna which he says provides great gain at higher angles for 80 and 40 metres as well as very good gain 20 metres through 10 metres. Let’s use MMANA-gal modelling to see if this agrees. Check out Rick’s website here: https://www.dj0ip.de/my-favorite-ante... Connect with my channel by subscribing and commenting. ----- Thanks for joining us today. Aloha es 73

How-to-build, cut & tune an end fed halfwave ham radio antenna.

Image
Halfwave end-fed HF antennas are the preferred tools for many amateur radio operators. In this video from Josh Nass (KI6NAZ), we get a full tutorial on how to build, trim, and tune this popular HF antenna. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=DxhT9uObigs Here are some comments from Josh: There are quite a lot of End Fed Half Wave antenna kits on the market and assembling them is all pretty much the same process. While tuning an End Fed can be complicated the first time, these are my tips to make it much easier! ☕ Coffee And Ham Radio Antenna Kits: https://coffee-and-ham-radios.square.... 📻 K6ARK 100 Watt Antenna Kits: https://amzn.to/3Y0GzJv 📻 Thanks to Rig Expert for sending me a Stick 500 to review: https://rigexpert.com/products/antenn... 📻 Gigaparts for sending me their new mast to check out: https://www.gigaparts.com/20-foot-ult... 📻 And MFJ for the 1914 Mast holster: https://mfjenter

Ham Radio - The light bulb antenna idea

Image
Radio amateurs have used all kinds of strange objects for antennas, including the topic of this video--the common light bulb. Kevin Loughin (KB9RLW) wondered if the "classic" light bulb dummy load could be used as an impromptu or emergency antenna. Kevin finds out that an ordinary light bulb can be used to send HF signals at often surprising distances. Why not try this experiment for yourself?  Based on Kevin's experience, I wouldn't trade your current "dummy load" for that light bulb in your table lamp.  Still, the project is fascinating. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=_C1us8niIlA Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

5 Cheap Wire Antennas for New Ham Radio Operators

Image
Here's another excellent antenna tutorial from Callum (M0MCX), better known perhaps as the "DX Commaner." In this video, Callum shows us 5, simple, inexpensive HF antennas that will appeal to both newly licensed radio amateurs as well as to experienced "pros" of the Amateur Radio community. Callum does a superb job of tying antenna theory to practical applications of "the antenna art."  Nicely done! If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=mB39myfgmgc Here are some comments from Callum (M0MCX): Let's look at some cheap wire antennas for new amateur radio ops and how to we put them up, what materials do we use and how do we multi-band them? Callum. More videos:     • Antenna Modelling   Antenna Modelling     • Tips and Tricks   Tips and Tricks     • Antennas   Antennas     • Live Streams   Live Streams     • Commander World   My Stuff     • Foundation Training