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Advice for Wire Reciving SWL Antenna

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Old 11-12-2010, 10:54 AM
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Default Advice for Wire Reciving SWL Antenna


I am planing on putting up an outdoor wire antenna, but I am a little undecided on what antenna I should make. Normally I would try experimenting with a few and choose the best, however I am running out of good weather and would like to get one up before snowfall.

I am planing on using it for receive only on shortwave bands. I live out of town and have a fair amount of space to put one up. I don't have a tower yet and am planing on using trees. I have one really big tree that is taller then anything around that I can use. Most other trees are not taller then the house.

At first I was going to put up a 100' long wire, but I would have to put it lower on my big tree in order to keep it horizontal to the ground. I thought however that maybe I should do an inverted V since I have one very high point but I don't know if they are better then long wire or not. I also noticed that there are multi-band long wire and multi-band inverted V. Do these really help over single wire?

Building them isn't much of a problem for me since I enjoy building my own stuff. I currently have 100' of shielded 12 gauge wire, PVC conduit for insulators, and TV coax for feed line. The only materials I really can't change is my feed line since I don't have access to 60ohm coax right now. Will the outer layer of the coax diminish performance on a dipole? If that is the case, should I go with a single wire fed long wire?


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Old 11-12-2010, 12:19 PM
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Make a beverage antenna if you've got a lot of space.
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Old 11-12-2010, 12:50 PM
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I never herd of a beverage antenna before but just looked it up. That is a really nice idea, however might be a bit bigger then I want to build at the moment. That and I don't know if my trees are up to supporting that amount of wire. That is possibly a good project for me in spring.

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Old 11-12-2010, 12:57 PM
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a simple 80 mmeter dipole would work you can save room and use it in an inverted V configuration. I use my for transmit and then at night use it on shortwave once and a while on AM 1100 for Coast To Coast Radio. It works just fine
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Old 11-12-2010, 01:51 PM
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Shortwave you mean BC or amateur bands?
I would recommend a loop antenna, K9AY.
Take a look at this site: Antenna Special -- on hard-core-dx.com
it can give some ideas.
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Old 11-12-2010, 02:09 PM
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As stated before it all depends what you are wanting to listen to.

If it is going to be an all around BC and SW amateur bands then by all means run you a BIG dipole as long as you can get it on each side.

If you want to go even further attach a small antenna coupler to the antenna in the shack and then turn your reciever on to whatever frequency you want to tune the antenna coupler for the strongest receive signal, you will get some good weak signal reception this way.

Loop antennas work good, they have their drawbacks with nulls, as do dipoles if erected at a halfwave length in height, if you are targeting BC stations you will not have that problem.

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Old 11-12-2010, 02:16 PM
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So all in all it boils down to what you are going to do with this antenna once you know that then building or buying one should be the easy part.
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Old 11-12-2010, 02:16 PM
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BIG di-pole if you have the room as stated a "coupler" or "trimmer" will work wonders.....

if you dont have enough room to put up 250+ feet of wire a G5RV works SURPRISINGLY well for SWL
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