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Antenna Ethics
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Hello Dave,
Thanks very much for sharing the details of your experimentation with the portable BOG antenna and inductive coupler for your Sony SRF-39FP.
I certainly wish you the best of luck in tracking down a few TA stations with your innovative gear, and look forward to reports of your success. Here on the west coast of North America our Fall Season for Asian transoceanic DX seems to have suffered an early demise, most likely related to the unfavorable solar activity. We typically face far greater distances over the Pacific than DXers in western Europe face when chasing Canadian and American TA's, though, so you may still be able to track down quite a few TA surprises this season. Have fun!
73, Gary DeBock, N7EKX (in Puyallup, WA, USA)
-----Original Message----- From: moleonacid@... [ultralightdx] To: ultralightdx Sent: Fri, Nov 28, 2014 7:01 am Subject: Re: [ultralightdx] Antenna Ethics Hello all,
I've just had a very rainy and grey week off work and needed a project to keep me entertained. Following the occurence of this thread and with the aim of bringing in some TA stations with my SRF-39FP I have constructed a portable BOG antenna and inductive coupler. "Ultralight" DX Portable Beverage On Ground (BOG) antenna
I haven't had a chance to try it out yet and I'm going to be busy for a couple of weekends now but I'll be out on the hills "beaming" North West ASAP. 73 de Dave M0MYA. |
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moleonacid@...
Hi Paul and Bruce,
Many thanks for the comments. Good question on the azimuth: I live in the English Midlands, near Birmingham. Over here the perception is that the USA is due West (I always thought it was!), but the great circle map says otherwise. https://www.flickr.com/photos/53695273@N00/15713083318/ I am interested specifically in stations in the USA as I'd like the little Sony to pick up a station from the place from whence it came. 73 de Dave. |
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Bruce Conti
On Fri, Nov 28, 2014 at 3:01 PM, moleonacid@... [ultralightdx] <ultralightdx@...> wrote:
Wondering why you're beaming northwest for TA signals? What is your location? |
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Paul Blundell
It is always great to hear about the projects of group members. I look forward to hearing how it works for you. Paul From: moleonacid@... [ultralightdx] Sent: 29/11/2014 2:01 AM To: ultralightdx@... Subject: Re: [ultralightdx] Antenna Ethics Hello all,
I haven't had a chance to try it out yet and I'm going to be busy for a couple of weekends now but I'll be out on the hills "beaming" North West ASAP. 73 de Dave M0MYA. |
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moleonacid@...
Hello all,
I've just had a very rainy and grey week off work and needed a project to keep me entertained. Following the occurence of this thread and with the aim of bringing in some TA stations with my SRF-39FP I have constructed a portable BOG antenna and inductive coupler. "Ultralight" DX Portable Beverage On Ground (BOG) antenna
I haven't had a chance to try it out yet and I'm going to be busy for a couple of weekends now but I'll be out on the hills "beaming" North West ASAP. 73 de Dave M0MYA. |
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Michael <michael.setaazul@...>
Ahhh - now we know who inspired the global banking crisis :-
. . . (or . . ., construct a 1m diameter FSL, if he happens to own a bank) . . .Michael :-) |
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moleonacid@...
---In ultralightdx@..., <D1028Gary@...> wrote :
Well, I'm sure that there are many different opinions about this, Dave, but as far as the Ultralight Radio group rules that we have followed since early 2008, ANY type of external antenna used with an Ultralight Radio is acceptable for the Ultralight Radio Awards program, although such receptions would be in the "Unlimited Antenna" category. Receptions with stock, unmodified Ultralight Radios would be in the "Barefoot Antenna" category. Ahhhh! Clearly defined answers! If only all of life was so well spelled out, hi! Many Thanks Gary. 73 de Dave. |
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Hi Dave,
Great to hear from you again!
<<< For example, an FSL is relatively mechanically complex, is ultra-heavy (in terms of mass), but occupies a relatively small amount of space. An air core loop is bigger, more mechanically simple and potentially low-mass.
A longwire is very simple and can be extremely light depending on dimensions and material choice. A BOG could be simpler still. However, we are then getting into the realms of traveling wave antennas which I get the feeling is considered "unsporting" in the world of ULDX. More simply: are simple, big wire antennas not appropriate? What about complexity - is an FSL not UL because of its lack of simplicity?
I know these are very subjective questions - I welcome all opinions. >>>
Well, I'm sure that there are many different opinions about this, Dave, but as far as the Ultralight Radio group rules that we have followed since early 2008, ANY type of external antenna used with an Ultralight Radio is acceptable for the Ultralight Radio Awards program, although such receptions would be in the "Unlimited Antenna" category. Receptions with stock, unmodified Ultralight Radios would be in the "Barefoot Antenna" category. Obviously, if someone goes to the trouble to lay a 1000m BOG (or for that matter, construct a 1m diameter FSL, if he happens to own a bank) he will have a serious DXing edge over everyone else-- but he will still be using Ultrtalight Radios, with their lack of SSB reception, limited filtering, and single-frequency reception.
Actually, DXing with an Ultralight Radio and a large FSL antenna on the ocean coast does have some advantages over using a Perseus-SDR and a long BOG. You can set up your antenna in under 2 minutes, even at the narrowest of ocean side cliffs. And when nasty weather knocks out your radio, you are only out about $50, instead of over $1000 :-)
73, Gary DeBock, N7EKX
(DXing at Grayland, WA)
-----Original Message----- From: moleonacid@... [ultralightdx] To: ultralightdx Sent: Sun, Nov 9, 2014 10:19 am Subject: [ultralightdx] Antenna Ethics Hello All,
Its that time of year again - the trout season is over and the low bands are calling. I'm wondering how big / complex you can go with an UL antenna and it still be considered as UL?
For example, an FSL is relatively mechanically complex, is ultra-heavy (in terms of mass), but occupies a relatively small amount of space.
An air core loop is bigger, more mechanically simple and potentially low-mass.
A longwire is very simple and can be extremely light depending on dimensions and material choice. A BOG could be simpler still. However, we are then getting into the realms of traveling wave antennas which I get the feeling is considered "unsporting" in the world of ULDX.
More simply: are simple, big wire antennas
not appropriate? What about complexity - is an FSL not UL because of its lack of simplicity?
I know these are very subjective questions - I welcome all opinions.
vy 73 de Dave M0MYA.
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moleonacid@...
Hello All,
Its that time of year again - the trout season is over and the low bands are calling. I'm wondering how big / complex you can go with an UL antenna and it still be considered as UL? For example, an FSL is relatively mechanically complex, is ultra-heavy (in terms of mass), but occupies a relatively small amount of space. An air core loop is bigger, more mechanically simple and potentially low-mass. A longwire is very simple and can be extremely light depending on dimensions and material choice. A BOG could be simpler still. However, we are then getting into the realms of traveling wave antennas which I get the feeling is considered "unsporting" in the world of ULDX. More simply: are simple, big wire antennas not appropriate? What about complexity - is an FSL not UL because of its lack of simplicity? I know these are very subjective questions - I welcome all opinions. vy 73 de Dave M0MYA. |
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