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Author Topic: What antenna do you use on 30m?  (Read 12514 times)
N3HEE
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« Reply #15 on: July 31, 2017, 05:03:41 AM »

300 foot horizontal loop fed with 300 ohm window line. 
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Joe
N3HEE
CW Academy Advisor (Level II)
NK7Z
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« Reply #16 on: July 31, 2017, 06:02:39 AM »

6BTV
I also have notes on tuning the 6BTV with curves for 30 Meters at:

http://nk7z.net/notes-on-tuning-a-6btv/
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Thanks,
Dave
For reviews and setups see: http://www.nk7z.net
K1HMS
Member

Posts: 463




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« Reply #17 on: July 31, 2017, 07:52:32 AM »

Quote from: VK5EEE link=topic=115979.msg1011728#msg1011728 date=1501468438

K1HMS which way is it oriented? Which directions does it cover well?
[/quote
It is vertical so it covers all directions with a relatively low take off angle. I was concerned noise would be an issue. Noise was up 1 S unit over a HPOL delta loop but the gain at lower elevation angles more than made up for it. It is SNR that counts.

Here is a test report on the 20m https://www.n1fd.org/2017/03/26/20m-vertical-dipole/. The 30m performs a few dB better on the same RBNs likely due to better propagation.

These baluns are bullet proof surviving years through nasty winters and Ice storms. They are rated 200w. On 20m it survived a week long 13 Colonies contest at 1kW on CW. (K2K NH)

To save a buck I'd buy the 20m and splice on some wire to use it on 30m or 40m.
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K0UA
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« Reply #18 on: July 31, 2017, 09:04:02 AM »

I have two, but neither are great.  My 80 meter OCFD has about a 2.5 to one SWR on 30, and will tune with the internal tuner on my IC7300.  It works fairly well.  My 160 meter inverted L will tune with an external tuner on 30 meters, and works so so.  Usually the OCFD will beat it.  A good Dipole or inverted V on 30 meters would probably beat them both.
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N9AOP
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Posts: 645




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« Reply #19 on: August 03, 2017, 11:04:20 AM »

A 3 wire folded dipole.
Art
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KC7YE
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Posts: 171




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« Reply #20 on: August 03, 2017, 03:30:02 PM »

End fed wire, 86ft in a horizontal V at 20 ft. #14 THHN stranded black. Can't be seen from street. Works OK . Until a couple months ago worked a fair amount of DX on CW & JT modes, not much now. Qth just north of Seattle. Yesterday hamspots reverse beacon had me copied in EI land in mid morning PDST.
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KE4KY
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« Reply #21 on: August 03, 2017, 07:55:05 PM »

6BTV

I too have found the 6BTV to work well.
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Glenn KE4KY - Ham since 1975
VK5EEE
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Posts: 1066




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« Reply #22 on: August 04, 2017, 12:53:00 AM »

Great efforts, just goes to show that anything is worth trying.

Today had a good 30m QSO with VK2CCW using a 6m band vertical tuning it up on 30m, RST 589 both ways.
Also with S57V using dipole up 20m, gave me RST 579-599 on peaks, with my dipole now flat broadside to EU at 10m AGL.
And a two way 100W to 100W dipole to dipole QSO with DL1YAY with RST 339 to 449 both ways long path.
On CW 30m doesn't need great antennas to work DX, though it's always good to squeeze each extra dB, QRML is the killer.
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Long Live Real Human CW and wishing you many happy CW QSO - 77 - CW Forever

Support CW and join CW clubs. QTT: FIST#1124, HSC#1437, UFT#728, RCWC#982, SKCC#15007, CWOPS#1714, 30CW#1,
VK5EEE
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Posts: 1066




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« Reply #23 on: August 10, 2017, 02:03:46 PM »

Picture and radiation plot of my 30m antenna superimposed on world map:

http://30cw.net/vk5eee
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Long Live Real Human CW and wishing you many happy CW QSO - 77 - CW Forever

Support CW and join CW clubs. QTT: FIST#1124, HSC#1437, UFT#728, RCWC#982, SKCC#15007, CWOPS#1714, 30CW#1,
K0RS
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Posts: 968




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« Reply #24 on: August 11, 2017, 04:05:16 PM »

A Mosley TW-33-XL, which is a three element tribander very much in the style of the venerable Mosley Classic 33, but resonant on all three WARC bands rather than 10/15/20m.  Mounted at 20m high.  I've had this antenna for over 20 years.
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KC4ZGP
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Posts: 1637




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« Reply #25 on: August 11, 2017, 05:30:44 PM »


I use the KC4ZGP magnetic loop. Or I will soon be using the KC4ZGP magnetic loop.

I've reconstituted the wooden supports. Up in the yard tomorrow he stands.

We might call a ship she but never an antenna. Antennas are a masculine
thing of beauty.

Makes sense eh?

Kraus

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VE3YF
Member

Posts: 558




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« Reply #26 on: August 11, 2017, 05:46:31 PM »


I use the KC4ZGP magnetic loop. Or I will soon be using the KC4ZGP magnetic loop.

I've reconstituted the wooden supports. Up in the yard tomorrow he stands.

We might call a ship she but never an antenna. Antennas are a masculine
thing of beauty.

Makes sense eh?

Kraus



Nope, makes no real sense as usual....
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73 De Mike
VE3YF

http://www.ve3yf.com
K1HMS
Member

Posts: 463




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« Reply #27 on: August 11, 2017, 07:06:41 PM »

Picture and radiation plot of my 30m antenna superimposed on world map:

http://30cw.net/vk5eee
How often do you hear the North east coast of the USA? Looks like you are good for P5
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VK5EEE
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Posts: 1066




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« Reply #28 on: August 11, 2017, 08:31:45 PM »

Yes trained on P5 direction, ready to operate VK5EEE/P5 too. No, I am not hearing much from NAM as about 2 S points down in that direction, and with antenna at only 10m up a further couple S points down in low angle radiation. But good to DPRK. Receiving DPRK with 59 here. Now just trying to get them to use ICW not just AM-CW and to key their TX on and off.
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Long Live Real Human CW and wishing you many happy CW QSO - 77 - CW Forever

Support CW and join CW clubs. QTT: FIST#1124, HSC#1437, UFT#728, RCWC#982, SKCC#15007, CWOPS#1714, 30CW#1,
WB6BYU
Member

Posts: 17072




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« Reply #29 on: August 11, 2017, 10:04:40 PM »

Being used to working a lot of high angle contacts on 40m, I started out with a dipole
and/or horizontally polarized loop for 30m.  Just didn't hear much.

Then I took my 40/20m vertical (about 20' radiator with a 3-wire top hat, with the
base up about 12' at the edge of the roof) and retuned the 20m match for 30m.  Signals
weren't necessarily stronger, but there were more of them, including a surprising chat
with VK6 one afternoon.  It certainly worked a lot better given that I was limited in the
height I had available.

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