Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread Michael Walker
All I have been running a 160M Inverted L right up beside some pine trees to the 80ft level and then I have the horizontal part moving away. The support for the vertical part is in the tree it runs up beside. I also have 4 Elevated radials at about 6ft (approx 1/4 wave). I'm pretty pleased

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread john
I would never consider compromising a TX antenna just to hear better. Perhaps a T vertical with a feedline choke similar to your 80m dipole and feedline radiator footprint would help with any local noise. Also there are many small RX antenna options. My station in Aruba was on a small

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread Richard (Rick) Karlquist
On 8/15/2019 4:57 PM, John Harper wrote: Last year I used my 80m dipole-110-foot vertical feedline as a top-loaded vertical on 160 - it worked well as a transmitting antenna but was a poor receiver due to noise so looking for another option. Tnx/73, John AE5X https://ae5x.blogspot.com Have

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread Mike Waters
Couldn't have possibly said it any better, Frank et al !! For you, John: http://www.w0btu.com/160_meters.html :-) 73, Mike www.w0btu.com On Tue, Aug 20, 2019 at 12:33 PM wrote: > Hi John, > > Horizontal polarization isn't very effective on topband except for local > QSOs. It would be far

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread John Harper
Thanks for the info guys. If only I had room for a dedicated rx antenna - then I'd leave the top-loaded vertical as is. I was copied in New Zealand with it on 630m WSPR with 1 watt ERP. So a happy medium is what I'm after since an excellent tx antenna does me no good if I can't hear those

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread Tim Shoppa
John, your 80M dipole with 110 foot vertical feedline fed as a top-loaded vertical on 160M is a wonderful antenna. If you are unhappy with its receive performance,the solution is to add a receive antenna (or two, or three!). Not to put up a worse transmitting antenna :-) Tim N3QE On Mon,

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread Joe
A Few years ago there was a detailed article all about this in QST. Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 8/19/2019 6:49 PM, donov...@starpower.net wrote: Hi John, Horizontal polarization isn't very effective on topband except for

Re: Topband: Wire for 2 wire BOG

2019-08-20 Thread N4ZR
I got half a kilometer of WD1-A fieldphone wire, new on the original spool, for less than $50.  It has both copper and steel strands in each of two conductors, which makes it pretty strong.  I don't think you can beat this locally, and they claim 4-day delivery

Re: Topband: Effect of trees on vertical elements?

2019-08-20 Thread donovanf
Hi John, Horizontal polarization isn't very effective on topband except for local QSOs. It would be far better if you could install an inverted-L vertical 73 Frank W3LPL - Original Message - From: "John Harper" To: topband@contesting.com Sent: Thursday, August 15, 2019