Not every antenna is to be permanently installed outdoors

Thank you for the feedback and tip!

I'd just do the 18 1/2 inches each. I used 18 1/2 inches like he has in the video and the swr's are great through the whole 2-meter band.

You can do this with any frequency, divide the frequency by 300,000 to give you the length in meters, then if you're American convert it using a calculator

2808 ÷ frequency in Mhz = length in inches. 2808 ÷ 145.00 = 19.365" or 19.36" (converted to the nearest fraction of an inch 19 3/8").

How?

Not everybody is comfortable speaking on video, especially a second language

The PVC Pipe is 15.24cm or 1/2 Foot the copper pipes are 47cm or 18.5 inches. The shielded wire is called RG58 and I think it has a copper shielding but you should get a zinc coated one if you want to solder it. 73, 55

Thanks for the reply......... Would it be easier to solder the cable to the copper pipes first and then clamp. Then you won't melt the PVC pipe? Do the clamps effect the 'antenna length since they are touching the copper? Thanks.

I don't think it would be easier per se because a soldering iron doesn't melt the pvc pipe I think. If you want to be extra careful, you might want to do it that way or melt the solder onto the copper. Regarding the second question: no it doesn't because the clamps only touch the parts of the copper which are going to be soldered. By the way if you want to tune your antenna to a certain frequency, you might want to use the tool I referenced below. It will calculate how long each element should be to be tuned to that frequency. www.66pacific.com/calculators/dipole-antenna-length-calculator.aspx Good Luck building!

Only vhf

Thats good idea right there.

It is convention to have a female connection on or near the antenna since most coaxial cables are terminated with male connectors. Also this is a strange statement you are making about soldering ring terminals to holes.

I have never seen an antenna with a male connector

@@AlessioSangalli I agree: on the antenna itself a female connector is typical, but if you have a wire permanently attached to the antenna, a plug is typical. For example, any mag-mount antenna manufactured for automotive use will have a plug on the end of the wire, not a socket. I suppose it depends on whether you consider it a temporary or a permanent installation.

@@julianopificius6910 Comparing a base antenna with an SO-239 connector at or near the antenna, to a mobile antenna with a PL-259 at the end of a permanently attatched run of coax is wrong. The mobile antenna is set up that way for ease of installation. Imagine having an SO-239/PL-259 connection scratching up the paint on your vehicle. Also, look at a Firestik or a 102" whip installation on a vehicle. The antenna screws into a 3/8-24 threaded socket and the opposite end of the feed through is an SO-239. You then connect a coax cable terminated with a PL-259 at each end, just like a base antenna! Base antennas always use an SO-239 so that you can easily attach a run of coax with a PL-259 at each end as is common practice in communications. The connectors could also be BNC or N connectors.

If your equipment uses 75 ohms then you can use a 75 ohm coax like rg 59, however if your equipment uses 50 ohms you should use 50 ohm coax like rg58

@@deafkite638 temporarily i used rg59 Using this dipole .. its effective in repeater.. but its not effective on simplex mode.. or direct contact with out repeater..

It could handle 50 watts or more

RG59 is a 75 ohms cable. Is your equipment 75 Ohms?

Thats what i. Thinking.. i buy Rg 59 because Rg 58 is out of stock in our store.. I would like to you Rg 59 to may hand held radio BAOFENG UV82.. What do you think? Its ok to use RG59??

@@AChannelNuclearrambo ..

This works in the range 143-146.5. Should work with slightly poor vswr a few kHz up and down the range.

He has the equipment, so it would be much more useful and interesting to show the bandwidth between, say, the 1.5:1 (and also 2:1 ?) high and low frequency limits.

@@hectorpascal True. I am the guy shooting the video. We totally forgot to show the antenna analyser readings.

If you carefully watch the brief segment at the end where he puts it on an antenna analyzer, it shows perfect SWR, but 40 ohms impedance. My MFJ analyzer does the same, showing my homebrew ground plane at 48 ohms, but still 1:1 SWR. I'm not sure it matters much - the impedance will vary considerably with height above ground and distance from nearby metal objects, so the real test is with the antenna in its final installed position.

1cm was the best I could do.

Did you make a better one and post it on KZfaq ?

2 years almost. Still going strong,

With tubing that thick it probably wouldn't get tight enough.

@@420bob1493 with a cheap HF hydraulic crimper it could probably be done. I would not trust a solder made with a small iron on thick copper tubing that wasn't even cleaned

For an antenna with a center frequency of 433 mhz, simply use two 6.5 inch copper tubes rather than what is shown in video

@@deafkite638 fanck you very mach

@@octaviangolodin5004 no problem

So, I wasn't the only one thinking it.

Instead of criticizing, send him the .97

I believe the person in the video is a female

Yes, it's called PL

True, Ntype are rugged and better designed. Unfortunately most of the vhf transceivers come with UHF connector.

Why would it matter if it's FM or SSB? You mean because of different polarization?

Then why did you watch ?

How can you criticize, did you make a better video

Honestly I had crimpers like those and that can be acquired for few a bucks for cables like RG58. I see them online for 6 dollars