WHAT THIS BLOG IS ABOUT

This blog is for anyone that loves building Ham Radio Antennas, CB Radio Antennas, Scanner Antennas and Any Antenna. Also for anyone that Buys Ham Radio Antennas as well as other Ham Radio Equipment.
Thank You From Dan KC2YTI

Sunday, December 27, 2015

Support Your Homebrew Antenna With A Rohn Tower

 If you are going to homebrew any ham radio antenna you are going to need to support it with something. For some lightweight antennas you can get away with a metal push up mast made by rohn as well as others. In fact a few years ago I found mine at lowes. These push up masts work well with a lightweight vertical, two element yagi or a small moxon antenna. I also connect one leg of my dipole antenna to the push up mast and the other to a tree.
 Now if you are going to homebrew a larger ham radio antenna such as a 20 meter moxon or maybe a four element yagi antenna you will need something better. This is where I would advise to go into a rohn antenna tower. There are different models that will support larger antenna arrays. You can search ebay for some excellent prices on new and used antenna towers. Just make sure to check out the seller before buying.
 If you are going with an antenna tower decide on how tall you want it to be. Also make sure of any rules in your area and town, because rules do vary. Also there are different types of antenna towers. Some of them are self supporting where guy ropes are not needed, but if you feel you want them use them. Some antenna towers are the crank up styles where you hand crank up or down. There are also some where you can use a electric winch to raise or lower it, just make sure to have safety breaking methods in place so it does not come crashing down.

        
 There are a few other types of antenna towers out there as well. Some antenna towers will tilt over allowing easy access to your antenna for servicing. Another feature I have seen are the hazers that allow the antenna to be raised or lowered for easy repair. Sometimes an antenna will be brought down in case of bad weather. I have seen an antenna tower that sort of folds up and you can see this by searching youtube videos. Just make sure that whatever you do check out the area for any power lines, because nobody needs to go to heaven to early.

If you are interested in some antenna towers check out the ads below the posts.


Friday, December 11, 2015

Build A Delta Loop Antenna As A Christmas Project


Have you got some time on your hands this year. Why not work on building a nice loop antenna. There are quite a few different ways to build a loop antenna. I have seen where a right angle pvc pipe, pvc pipe and some crappie fishing poles were used to make the popular diamond loop shape. Some people designed the antenna to be mounted on top of a mast, while others mounted it sitting on a table. It can be hung off a fiberglass telescoping mast or hung from a tree. Just check out your location and start the thinking process.
 Just click on the links below to watch some excellent videos.
  1. https://youtu.be/Ji-A77k-RQw 
  2. https://youtu.be/QJl3S9x6K_I 
  3. https://youtu.be/mWY8kGUrRks 
Here are a few Antenna Calculators for Delta Loop Antennas.
  1. http://home.kendra.com/kj7yl/ant.htm 
  2. http://www.ws6x.com/ant_calc.htm 
  3. http://www.n1wpn.net/loop_antennas_and_calculator 
  There are many different designs for Loop Antennas so start designing today. If you have a Loop Antenna leave a comment.

If your looking to buy a Loop Antenna follow this link  Click For Loop Antennas

Thursday, November 26, 2015

Build An Antenna For Your Scanner

  Yes the antenna that comes with your table top scanner can only do so much. When I had my Ham Shack Temporarily on the second floor of my house the scanner picked up quite a few frequencies. Now I have my Ham Shack and Computer Room in the lower level of our raised ranch. Yes the signals have diminished due to the antenna being lower.
 Okay so what are my different choices at this point. Well the first option is to get an antenna outside and up on my mast or on the roof. The next choice is whether to buy a nice scanner antenna or build a nice scanner antenna. Well I have decided to build a scanner antenna with some heavy duty wire and some pvc pipe. I can then use a small marine pulley that will withstand the weather and pull it up high on my vertical antenna mast.
  So you may be asking how did I determine the length of the scanner antenna. Well I did what any Ham Radio Operator would do, I searched the internet and got out my ARRL Manuals. I found the formulas for determining the antenna length. I went on the internet and found various antenna calculators. In fact here is a link to  a antenna calculator http://www.csgnetwork.com/antennagenericfreqlencalc.html . There are many other websites out there on the internet with all kinds of information on building scanner antennas.
 Now if you do not want to build a scanner antenna you can buy a good antenna. There plenty of vertical and Discone Scanner Antennas. There is absolutely nothing wrong with buying a new antenna. My advise is to check out Amazon and Ebay for some good deals on scanner antennas. Here is a link to scanner antennas Scanner Antennas At Ebay . If you prefer Amazon here is another link Scanner Antennas At Amazon.

If you prefer to search amazon you can check out the ads below.

Tuesday, November 3, 2015

Simple Rotatable Dipole Antennas Can Be Simple

 If your looking for a simple antenna to build think about a rotatable dipole antenna. There are a few different ways to design this type of antenna. It can be made of aluminum tubing or wire. The aluminum tubing may give a better bandwidth and have better strength. If you are thinking of using wire you may want to design the support structure out of electrical pvc conduit. The only issue is when you get 20 meters or larger it may have problems with support and sagging. That is when an engineering design may help.
          
                      Simple rotary dipole by dx2hunt
  If you are looking for excellent websites on rotatable dipole designs here are a few links http://k8jhr.com/files/20_meter_dipole_summary_a_ver_2_n.pdf , http://www.k6if.com/40dip/40dip.html and http://www.va7st.ca/rotary.htm . There are of course plenty of other excellent websites and videos on youtube that will provide some good information on building and designing rotatable dipoles. Here is a calculator for a dipole antenna that may be helpful in designing a rotatable dipole antenna http://www.csgnetwork.com/antennaedcalc.html . Of course you may have to take into consideration of what material you design it with.
 Some of the best places I have seen for aluminum tubing is DX Engineering, Hygain and Aluminum Tubing at http://www.antennapartsoutlet.com/Pages/Products/Aluminum.html . You can also as I sated earlier that you could use pvc tubing and wire. These items can be bought locally at lowes and home depot as well as other hardware stores. If you need 4 or 5 way pvc connectors and you can purchase them online. If you are going to build any ham antennas I would suggest to purchase a good MFJ SWR Analyzer .



Saturday, October 17, 2015

The Quad Antenna Does An Excellent Job


 From my earliest days in the 11 meter band I had my PDL II antenna, which was a quad antenna. It did an excellent job back in those days. Now in my Ham Radio Hobby I am working on a 6 meter quad antenna. If you are interested you can see what I am doing on my other blog at http://thehamshackshop.blogspot.com/2015/02/homebrew-6-meter-cubical-quad-antenna.html 
Yes it is still a work in progress and maybe since it a little cooler I may do more with it. I guess it's one of those things in life where we get distracted and follow a path.
 http://www.w8ji.com/quad_cubical_quad.htm or http://www.dxzone.com/catalog/Antennas/Quad/ . There are plenty of other websites with lots of useful information that can help in your design of a cubical quad antenna. Just remember if you use electrical pvc conduit pipe or just pvc pipe the higher the frequency band you go the larger and heavier the antenna will be.
Okay back to the subject of the Quad Antenna. If you are interested in quad antennas here is a link to some interesting information
 If you are looking for some excellent videos on a fellow Ham Radio Operator and his Cubical Quad Antenna Project follow this link https://youtu.be/ktrfw4329aM . There are quite a few videos in this project, but they provide some excellent information. There are other videos on youtube as well that will help. One useful tool is the antenna calculator for quad antennas. Here are a few links to some quad antenna calculators http://www.qsl.net/yt1vp/CUBICAL%20QUAD%20ANTENNA%20CALCULATOR.htm , http://www2.mmae.ucf.edu/~ssd/ham/quadcalc.html and http://www.csgnetwork.com/antennae5q2calc.html . So if you are interested in building a cubical quad antenna for any Ham Radio Band remember to have fun.

If you are looking for a cubical quad antenna click on this link CUBICAL QUAD ANTENNAS

Saturday, October 10, 2015

Build Yourself A Vertical Ham Antenna


 Are you one of us Ham Radio Operators that does not have a lot of room for big antennas. Well maybe you could fit a nice tall vertical antenna in you back yard. There are plenty of nice Vertical Ham Antennas that you can buy brand new if you choose. Some of the popular brands are MFJ, S9, Cushcraft, Hygain, Hustler and Zero Five. All of these are excellent ham antennas in the vertical category. The only issue is that some are a little on the expensive side. If you choose this route that's okay there is nothing wrong with buying new.
 Now if you want to build your own vertical ham antenna there are plenty of ways to do it. If you look at the S9 Vertical Antenna it is basically a long given length of wire stretched out in a vertical fiberglass tube. So why not take that and improvise with your own ideas. For example I have seen many hams where they used some pvc pipe to make the tube. If I were doing this I would use the grey electrical conduit for its UV Protectiveness . Just remember that any PVC Tube gets weaker at longer lengths especially when standing up vertical. An idea would be to stand it up using a tree as a support. You could use Dacron Guy Rope to keep it steady. One idea may be to insert some dowel rod inside the tube for some added strength and rigidity.

             
  For this type of vertical antenna you will need some kind of ground plane or counterpoise. Antennas like the S9 use the coax cable as a counterpoise. This could cause some rf problems and a balun will be needed to help. You can always build one of the ugly baluns, which are very simple to make. It is simply so many turns of coax cable around a pvc tube. I have seen some hams just wrap it together with tie wraps making sure the two ends of the cable do not touch each other. That is why I use a 3 or 4 inch diameter of pvc pipe. There are plenty of websites on the internet for making an ugly balun. Here is a link to some excellent information on making an ugly balun http://www.hamuniverse.com/balun.html .
 If you are laying out ground radials they can be in various patterns. Also I would start out with 4 or 5 20 foot wire radials and add more if needed for better results. There will come a certain amount when it won't make much difference.
 As far as supplies go most things can be purchased at lowes or home depot. Heavy gauge wire can be used, but antenna wire from DX Engineering or maybe from Ebay would be preferred. Basically it would hold up much better with the elements outside. Another idea for the vertical tube is a Telescoping Fiberglass Mast . Just be aware that some could be expensive. There are some flagpole masts that are not too expensive. I have also seen that mfj is selling some push up masts as well as Max Gain Systems.
 Thank You for stopping by from Dan KC2YTI 73s and DIY Today !!!
 

Saturday, October 3, 2015

Build A Double Bazooka Ham Antenna

 Here is an interesting ham antenna you could build. It's called a Double Bazooka Antenna. If you are looking for some reviews on the Double Bazooka Antenna check out http://www.eham.net/reviews/ . Here is another link with some excellent information on the Double Bazooka Antenna http://www.k3dav.com/buildadoublebazookaant.htm . If you are looking for a calculator for the double bazooka check out this link http://www.westmountainradio.com/antenna_calculator_bazooka.php . Below is a video I came across on youtube and there are other videos out there on the internet.

      
 The Double Bazooka Antenna - A Review by Rob Wagner


Here is a link you can follow to see some other bazooka ham antennas
BAZOOKA HAM RADIO ANTENNAS



Thank You for stopping by from Dan KC2YTI  73 and have fun with DIY Projects !!!





Saturday, September 26, 2015

One Important Piece Of Equipment For Building Ham Radio Antennas

 If you are going to build Ham Radio Antennas there is one important piece of Ham Radio Equipment you will need. That important piece of equipment is a Antenna Analyzer. There are a few different manufacturers that come to mind. The most popular brand I can think of is MFJ. Now I know individuals tend to frown on MFJ Products, but for myself they seem to work just fine.  My MFJ 259C seems to do a very fine job. I have used it on a few different occasions and I have had no problems with it.
 There are other brands of Antenna Analyzers out there such as SainSonic, Rig Expert and Comet as well as some other brands. If you are looking for some places to read reviews on various types of ham radio equipment I would check out Amazon.com, Ebay and http://www.eham.net/ .  Here is a link to a youtube video on the basics of an antenna analyzer https://youtu.be/3Sba7_giu7w . Below is some information on the MFJ 269C Pro Antenna Analyzer.

  MFJ Enterprises Original MFJ-269CPRO .53-230 / 430 ~ 520 MHz Antenna / SWR / RF Analyzer w/ LCD, Counter & Meters.

  • 530KHz-230MHz plus 415-470MHz HF/VHF/UHF SWR Analyzer
  • New 12-bit A/D converter gives much better accuracy and resolution than common 8-bit A/D converters -- an MFJ-269C exclusive!
  • Built-in Coax Calculator -- calculates coax line length in feet given coax length in electrical degrees and vice versa for any frequency and any velocity factor (great for building matching sections and phasing lines) -- an MFJ-269C exclusive!
  • Large easy-to-read two line LCD display and side-by-side meters clearly display your information. Built-in Ni-Cad/Ni-MH charger circuit, battery saver, low battery warning, smooth reduction drive tuning.Use as signal source for testing/alignment.
  • Has built-in "N-type" connector. Includes Free N-to-SO-239 adapter. Use 10 AA Ni-MH or Ni-Cad or alkaline batteries (not included -- alkaline batteries cannot be charged internally) or 110-240 VAC with optional MFJ-1312D.
  

Ham Radio Antenna Help


HEX BEAM ANTENNA
 If you are thinking of building a Ham Radio Antenna you will need some information. In other words some education on building ham radio antennas. The first thing I would do is invest in some books on building ham antennas or for that matter any antenna. What I would suggest is one of the ARRL Antenna Handbooks or Manuals. I have one of those and it is quite a few years old, but I still use it from time to time. There are also plenty of other books out there that will provide all kinds of excellent information.
 The next place I would look is on the internet. There are tons of websites that provide all kinds of information. You can be building for example a Moxon Antenna. Here is a link to one of those websites http://www.moxonantennaproject.com/ . There are also plenty of antenna calculators out there on the internet that will help in the designing of a particular kind of antenna. One of my favorite places is at http://www.dxzone.com/catalog/Antennas/Antenna_Calculators/ . One of my other favorite websites for antenna calculators is http://www.ve3sqb.com/ .The choices out there on the internet are just endless for all kinds of help and information on building antennas.

             
 Antenna simulation tutorial 2 - building antennas with the editors by dx2hunt

  Now the other place I would look for help and information is on youtube. There are so many different videos out there it is unbelievable . Unfortunately I can not post them all on my blog due to copy write laws. There are some that I can post from Creative Commons in the Public Domain. So when I come across some I plan to share them. I will also be placing some ads for various types of Ham Radio Equipment, Books and anything that can help.




THANK YOU FOR STOPPING BY FROM DAN KC2YTI 73s and Leave A Comment !!!



What This Blog Is About

 This Blog is going to be for anyone that loves designing and building Antennas. These Antennas can be for Ham Radio as well as CB Radio. I am also going to be looking for other Antennas for Scanners and anything such as Shortwave Antennas. If I can find videos and other information I will post it. If anyone that visits the Blog has an Antenna Idea be sure to leave a comment. I will also be saying things about other Ham Radio Equipment along the way. I will also have links to my other Blogs just in case they can help someone.
      THIS BLOG IS FOR EVERYONE !!!

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