Re: [TenTec] New Jupiter on its Way _ A Few Questions

["Rockinghorse Winner (Terry)" <ny6p01@gmail.com>]

Bob McGraw - K4TAX wrote:
> I agree that loops are quieter.......but so is a dummy load.  
> Secondly, with a loop in the house, I would NEVER transmit with one 
> due to extremely high levels of radiation.......a.k.a. brain burners.
> A receiving loop has its advantages with directional properties. That 
> is about the only good thing I can find about loops unless they are 
> larger than 1/2 wave physically.   I realize we all do not have ideal 
> antenna locations and in many cases we must "make do" with what is 
> available.  If a loop is that choice, then so be it.  Personally, I'd 
> suggest looking at other alternatives even to a mobile antenna, a C 
> clamp, and a balcony railing.
> 73
> Bob, K4TAX
The primary reason for the receiving loop is to cut down on the qrn. I 
get out 'ok' with the shortened dipole I have on a tripod in my living 
room. Looks kind of weird in that location but....
> ----- Original Message ----- From: <ny6p01@gmail.com>
> To: <tentec@contesting.com>
> Sent: Sunday, April 27, 2014 4:05 PM
> Subject: Re: [TenTec] New Jupiter on its Way _ A Few Questions
>
>
> > On Sun, Apr 27, 2014 at 03:52:32PM -0400, K8JHR wrote:
> > > LEE -- AS A LONG TIME RECEIVE LOOP USER... (I have used others besides
> > > the Wellbrook and DX-E antennas I mentioned previously, but I don't
> > > recommend the others at all) I want to be very clear about one thing:
> > >
> > > YOU ARE ALWAYS BETTER OFF WITH AN ANTENNA
> > > LOCATED OUTSIDE THAN IN.
> > >
> > > The "magnetic" loops are 'quieter" but that is a relative term.
> > > Unfortunately, they are NOT IMMUNE to EMI/RFI and the rest of the
> > > electrical hash one encounters in the modern domestic environment.
> > > There are no free lunches... darn it, cause I LIKE to eat... and
> > > "better" or "quieter"  does necessarily mean you will be out of the 
> > > wood
> > > on YOUR particular noise problem.
> > >
> > > My Wellbrook loop is down now ... I took it down last summer, as it was
> > > too close to the transmit antennas to suit me.   Maybe I will mail 
> > > it to
> > > you to try for a while and see for yourself if it helps you situation.
> > >   It worked well for me, but maybe it won't cut it in your location.
> > > Antennas just seem to work that way, I guess.  You wanna try it?   All
> > > you need is coax line and a way to hang a big circle of wire...  any
> > > traction?
> > Well, that's a generous offer, JHR. I am tempted to take you up on 
> > it. Only
> > problem is that I plan on employing it on the same mast with the
> > transmitting antenna. Is that bad practice? The reason is that I am not
> > allowed an outdoor antenna, and I live in a small flat.
> >
> > I would love to get something in the air, though. I am thinking about
> > building one myself according to Rick's Old Folk's type antenna, out of
> > coax and wire. Given my construction skills, it will be mickey mouse, 
> > but
> > (hopefully) electrically sound, and give me an idea of what these 
> > antennas
> > sound like.
> >
> > Jupiter should be here tomorrow. I'm curious to see how it reacts to the
> > indoor antenna 4 meters from the operating position. I've ordered 
> > another rf
> > choke for the receiver to match the one at the antenna, and if necessary
> > will take additional steps.
> >
> > Then, I'll think about the antenna. I've already started to look for 
> > a frame
> > for the loop - I'm thinking 3/4" pvc; and flexible copper tubing for the
> > main loop.
> >
> > Lee (NY6P)
> >
> >
> > > -----------------  JHR ----------------------
> > >
> > >
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