Its been a very long time since I ran an HF KW from a residence. At a new QTH, I am contemplating doing so, using a yagi on a tower, say at 60 ft. I am now at a fairly dense subdivision, shown here o
It looks like your electric and cable lines are underground in that neighborhood. That is good. I guess there is no restriction on towers. That is also good. I think you have hit upon the perfect cit
You will soon be meeting a lot of your neighbors. I had the same situation and it was more than unpleasant. In fact, that is one of the main reasons I moved 99% of my operations to RTTY. Of all the c
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 2 Aug 2006 21:48:17 -0400
If you run it through an RF calculator you will find the higher you go the smaller the circle at ground level for a given intensity. OTOH for some strange reason the number of RFI complaints seems t
ORIGINAL MESSAGE: -- REPLY SEPARATOR -- A most astute observation. That should be in the ARRL RFI handbook if it isn't already. :-) Bill, W6WRT _______________________________________________ _______
Are you saying you cause RFI to 60 or 70 homes? Am I missing something here? Mike K9MI _______________________________________________ _______________________________________________ TowerTalk mailin
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 2 Aug 2006 23:54:25 -0400
ORIGINAL MESSAGE: In that case I should probaly rephrase that to: Although the laws of Physics show the higher you go the smaller the circle at ground level for a given intensity, for some strange re
ORIGINAL MESSAGE: -- REPLY SEPARATOR -- Indeed you do. Of course you will also get all the phone calls too. Bill, W6WRT _______________________________________________ _______________________________
ORIGINAL MESSAGE: -- REPLY SEPARATOR -- Easily, at that power level. If you've never operated high power, you will be surprised to find there is a threshold level for RFI which does not work in the a
Did you listen on a receiver when you where in the new house how about qrm this 60 or 70 houses can make to you :o( on4ma I http://maps.google.com/maps?f=q&hl=en&q=Rocklin+CA&ie=UTF8&ll=38.780237,-12
A very important step in starting operation in a place like this is to put up the tower and antenna... but NOT connect the feedline for at least a week. That will give you a chance to find out who ha
My experiences only: When I was using a Cushcraft A4S at 45 feet I had a little TVI trouble in my own house (no close neighbors). It showed up on some frequencies and was noticeable but not a real nu
I am wondering if it is the height or the more efficient antenna(s), or both. 73, Keith NM5G --Original Message-- From: towertalk-bounces@contesting.com [mailto:towertalk-bounces@contesting.com] On B
For a given distance D to the antenna the field strength is proportional to 1/D(squared). In other words double the distance and you reduce field strength by 4. Will be different for "near field" are
The near field for a HF antenna is surprisingly large, and doesn't have a lot to do with the physical size of the antenna. The classic (and somewhat arbitrary) definition of "near field" is the volum