Madhu
I am sorry, I was not accurate when I implied below that you may need to be a member of ARRL. I found out that one does not need to be a member to access ARRL's RFI page. Please try clicking http://www.arrl.org/radio-frequency-interference-rfi and you should be able to read most of the pages listed on it. You may find an answer somewhere there. There is tons of information available there.
73
Prasad VU2AEA
From: ad_prasad <ad_prasad@yahoo.com>
To: HamBrewers@yahoogroups.com
Sent: Saturday, November 17, 2012 9:57 AM
Subject: [HamBrewers] Re: Question on Loop/ Delta Loop
Madhu
QST has published many articles on noise. If you are a member of ARRL you can download them directly. If not you may be able to find a ham who may be a member and he may be able to help you.
73
Prasad
--- In HamBrewers@yahoogroups.com, Madhukar VU2MUD <vu2mud@...> wrote:
>
> I face a very high level of electrical noise at my new Permanent QTH - being just about 300 Mtrs from HT Lines - becoming a Permanent QRM too!!
> Â
> This is present at unacceptable levels - s-9 + most of the times. This made me consider a Loop/Delta Loop Antenna for 7 Mhz to handle the noise issue.
> Â
> Planning for a Horizontal installation - I understand that this gives me only Ground Waves - OK for now.
> Â
> I need clarifications on the following issues.
> Â
> 1. Most of the Links that I see on the web is for a full wave design. What limits the use of a Half Wave Delta Loop??
> 2. Where should bthe feedpoint be?
> 3. What will be feedline impedence??
> 4. What kind of Balun is required to feed to a 50 Ohm cable?
> 5. What else is to be considered??
> Â
> I have a LDG - Z-100 Plus antenna tuner.Â
> Â
> Madhukar â€" VU2MUD
> Yahoo Mail: vu2mud@...
> Gmail: vu2mud@...
> General Blog: http://vu2mud.blogspot.com
> Satellite Blog: http://workingtheoscars.blogspot.com
> Location: Lat: 13° 0' 6'' N; Long: 77° 32' 10'' E;         Â
> Grid Loc: MK83SA
>
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