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inverted v direction for hf

nfsus

Yeah its turned off, touch it
May 9, 2011
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Arkansas
in central usa, what is the optimal direction to orient an off center fed inverted v antenna for the best hf work? do i orient it in a n\s or e\w direction for best coverage? its 25 off the ground to the balun but im going to raise it to 35.
 
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groundwire

Sr. Member
Jul 19, 2014
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it really depends on your dx goals. for me i would probably go with a ne/sw orientation. that way you can hit most of the usa but still have the possibility to get some Europe or pacific contacts on occasion. granted it is just a dipole and not a beam but still
 

fourstringburn

W9WDX Amateur Radio Club Member K5KNM
Feb 11, 2007
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ne/sw orientation
Agree with this for the same reasons.

Have you checked your true location for true north? You may find out you're off a bit which may be a good thing. My location is really NE even though the house which my antenna mast is attached to appears to be true north. This is perfect for me because I want NE broadside for my antenna.

A dipole will provide a broad range of RF on each side. Even a Beam antenna isn't a laser so the RF range from center towards the ends of the antenna isn't as significantly lower in dB gain/loss as one may think.

I get plenty of Europe, Africa, and some middle east Asia along with contacts into the Pacific Islands, Japan and Asia along with many Oceania continents and Islands from just 1 antenna.

If you don't have a compass, there are many free cell phone apps that work just fine.

Good luck!
 
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nfsus

Yeah its turned off, touch it
May 9, 2011
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80
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Arkansas
received_1063591011202136.jpeg
 

nfsus

Yeah its turned off, touch it
May 9, 2011
174
80
38
45
Arkansas
I was considering making a switchable v or l that can maybe hit n/s e/w sorta. Dunno what the actual direction would be.
 

The20poundhammer

Sr. Member
May 23, 2016
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My ocfd is a little north east to a little south west with the feedpoint at 65 feet both ends at about 40 and I have had great luck hitting all of Europe some Africa and South America and the Pacific besides here in the states.
 

groundwire

Sr. Member
Jul 19, 2014
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you don't have to worry about being exact in your antenna direction. the lobes are so broad on an inverted v that if you get it in the general direction the results should be favorable. Again, it doesn't have the radiation pattern of a beam. Just point it and have fun.

png-transparent-radiation-pattern-moxon-antenna-aerials-yagi-uda-antenna-quad-antenna-inverted...png
 

nfsus

Yeah its turned off, touch it
May 9, 2011
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Arkansas
you don't have to worry about being exact in your antenna direction. the lobes are so broad on an inverted v that if you get it in the general direction the results should be favorable. Again, it doesn't have the radiation pattern of a beam. Just point it and have fun.

View attachment 59460
thats on 27mhz. ive read that as the freq changes, that the lobes change too. im using 40 and 80 meters mostly right now.
 

Captain Kilowatt

Professional Amateur
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Apr 6, 2005
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thats on 27mhz. ive read that as the freq changes, that the lobes change too. im using 40 and 80 meters mostly right now.
Actually it applies to ALL frequencies. The exception being if the legs are several quarter wavelengths long like if you were operating a half wave dipole for 80m on 20m or 10m. Then the antenna develops lobes that tend to align with the direction of the wire itself and becomes more end fire than broadside. If you are using an 80m or 40m VEE on 80m or 40m,ie the fundamental frequency for which it was cut, it becomes essentially omnidirectional. I ran an 80m half wave inverted VEE fed with ladderline on all bands and there was essentially no directivity on 80m or 40m and hard to determine on 20m.
 
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nfsus

Yeah its turned off, touch it
May 9, 2011
174
80
38
45
Arkansas
Picture is worth 1000 words. Unless i draw it. This is my current setup. I dont know off hand the slope angles. I'd say about that much. By the nanovna it looks good so I'm running it. But I want more more more. I do plan on going about 10ft higher later this week to see what effect it has based on using wwv as a constant signal. Dotted line is a 4ft high metal fence. Roughly 130ft between a and c. 40 degrees north on short side, 175 degrees on long side according to the apple compass
 
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