The problem is apparently within the K3 & the antenna. Used an adapter to run the BNC connected Rx antenna into the main antenna and there's a night & day difference.
Now to contact Elecraft for their thoughts on the matter. & thanks to Lee from Hi-Z who contacted me to help me figure out where the issue is coming from. Gary KA1J > yes it is, although the quietest directions are to the N, NE & NW > which would make those directions the worst if it were the rail lines. > > I'm finding that the Rx triangle has more noise than the 160 Inv-V and > that doesn't make sense to me yet. I don't use a pre on the low bands > & sometimes use an attenuator. > > Gary > KA1J > > > Is that rail line electrified? > > > > Carl > > KM1H > > > > > > ----- Original Message ----- > > From: "Gary Smith" <[email protected]> > > To: <[email protected]> > > Sent: Thursday, November 29, 2012 11:52 AM > > Subject: Topband: High noise with Rx antennae > > > > > > > I'm hearing a lot of noise with my triangle array. I was hearing > > > it close to the house so I relocated 100' away albeit 10-15 feet > > > lower. Unfortunately I can not put it in a clearing and there are > > > trees around it, I cut down several that were within 10' of the > > > elements. I am using flooded coax and the snap on terminals. I > > > replaced all the terminals but this did not change the problem. > > > > > > I am getting directivity and to the south along the road I hear an > > > increased background noise where home electronics may be a source > > > of noise. What I hear sounds like electrical noise, nothing > > > digital sounding but moving the antenna didn't help much. By > > > necessity, the transmit antenna is 75' away and some of the 130' > > > radials on the ground run fairly close to the Rx array. I find the > > > inv-l to be sometimes less noisy but the triangle will often pick > > > up a signal the vertical does not (albeit with greater background > > > noise). > > > > > > I'm using a K3 with sub Rx and the AF control is rarely turned > > > more than 15 degrees. Playing with Rf levels, AGC, noise blanker, > > > noise reduction seems to help overall and Sometimes I run with no > > > AGC at times too but it doesn't deal with the high background > > > noise. I'm wondering if shortening the elements would have a > > > positive effect on reducing the noise level? > > > > > > Here is a view of the QTH. My house is the last one, at the end of > > > the road & next to the rail line. I am sandwiched between two > > > state parks. Other than Amtrak being beside the house and the > > > people on the road south of me, there is no other house or signal > > > generation within a mile. http://tinyurl.com/cy7zv7h > > > > > > Thanks for any suggestions. > > > > > > Gary > > > KA1J > > > _______________________________________________ > > > Topband reflector - [email protected] > > > > > > > > > ----- > > > No virus found in this message. > > > Checked by AVG - www.avg.com > > > Version: 10.0.1427 / Virus Database: 2634/5426 - Release Date: > > > 11/29/12 > > > > > > > > > _______________________________________________ > Topband reflector - [email protected] > _______________________________________________ Topband reflector - [email protected]
