Thursday, November 15, 2012

Re: [HamBrewers] Question on Loop/ Delta Loop

 

Hi,


If your transceiver has a RX antenna input or if you are able to modify it, a receiving only antenna could be a nice solution.
You can keep an efficient TX antenna and reduce the noise level.


Le 15 nov. 2012 à 17:18, Madhukar VU2MUD a écrit :



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!!
 
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.
 
Planning for a Horizontal installation - I understand that this gives me only Ground Waves - OK for now.
 
I need clarifications on the following issues.
 
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??
 
I have a LDG - Z-100 Plus antenna tuner. 
 
Madhukar – VU2MUD
Yahoo Mail: vu2mud@yahoo.co.uk
Gmail: vu2mud@gmail.com
General Blog: http://vu2mud.blogspot.com
Satellite Blog: http://workingtheoscars.blogspot.com
Location: Lat: 13° 0' 6'' N; Long: 77° 32' 10'' E;           
Grid Loc: MK83SA



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