Topband: BEVS ON SAME SUPPORT

2012-05-23 Thread Bill and Liz
Like ZL3IX, I also had very poor results with a Beverage travelling too close to a fence. F/B was bad but even worse was coupling of noise picked up by the fence. WRT a second Bev on the same post, 12-18 is far too close to space the two wires. I have several Bevs which cross at something

Topband: 2 x Parallel Bev URL

2012-05-23 Thread Neil G0JHC
The link on my posting may not work for some of you. This one gets around the problem http://tiny.cc/lwnudw http://tiny.cc/lwnudw Neil G0JHC ___ UR RST IS ... ... ..9 QSB QSB - hw? BK

Topband: 2 x Parallel Bev URL

2012-05-23 Thread Neil G0JHC
The link on my posting may not work for some of you. This one gets around the problem http://tiny.cc/lwnudw Neil G0JHC ___ UR RST IS ... ... ..9 QSB QSB - hw? BK

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread Mike Waters
Is this the Beverage above the fence that you mean, Greg? http://www.g3xrj.com/RxArray_files/2wire_bev/2wire_bev.htm That was a good article. 73, Mike www.w0btu.com On Wed, May 23, 2012 at 3:05 AM, Greg - ZL3IX zl...@inet.net.nz wrote: I have not tried to run two Bevs like that, but I have

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread ZR
I can understand why a fence would be a problem. Theoretically at least parallel Beverages should have no radiation/coupling. But that then means an absolutely perfectly balanced and terminated pair of lines. The closest I had a parallel pair was years ago and with Slinkys. After having one up

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread Jeff Woods
I missed the original post, but if the question pertains to running two independent beverages in opposite directions on the same supports - Yes.  It works well.  I began doing this last winter, adding shorter, opposite direction beverages to my NE and NNW (EU and JA) antennas.  Performance

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread g3pqa
Jeff, EZNEC confirms what you and Neil have found. Modelling Neil G0JHC's antenna with 1000ft beverages at 12ft and 10ft, offset by 30ft length-wise, shows almost identical patterns to a single beverage. Terminating both ends of the unused bev improves the f/b as one might expect, but does not

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread Jeff Woods
If you terminate both ends though, isn't it easier just to use one wire and relay switch between the feeder and termination R? 73 John ___ UR RST IS ... ... ..9 QSB QSB - hw? BK

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread Jeff Woods
John, Yes, if both beverages are to be the same length, a single wire will work in both directions.  I take this approach on the E/W antenna:  It's a single-wire with transformers at each end and two runs of co-ax to the shack.  For this particular antenna, that was the cheapest / most-robust

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread GeorgeWallner
Mike, You are willing to run 2 coax cables and have 2 transformers, but don't want to bother with remote relays, etc. You could simply have a single wire, terminated at each end by a transformer. Run from each transformer a coax to the shack. Use a DPDT relay or manual switch in the shack to

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread donovanf
The bidirectional Beverage antenna was patented by Harold Beverage in 1922: http://www.google.com/patents?id=oN5iEBAJprintsec=abstractzoom=4dq=1434984#v=onepageq=1434984f=false When Beverage built the huge RCA receiver site at Riverhead, Long Island, the Beverages were built as

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread ZR
Terro ant kill works well around here. If you cant elevate the RG-6 then find some surplus CATV hardline and remote the switching. There are low cost microwave relays that provide a wiping action that eliminates most switching problems; I bought 100 from Electronic Goldmine a few years ago at

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread Herb Schoenbohm
On 5/23/2012 2:01 PM, ZR wrote: Terro ant kill works well around here. The portion of the island where I live has been declared as the East End Marine Park and some agency of the local government DPNR has determined that using any chemicals in the ground to deter pests is a violation of the

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread rfman45
I thank each and every one of you for your well-considered thoughts on my original posting concerning 2 parallel beverages; your overwhelming response proves what a great group inhabits this reflector. I lurk on this site more than 99% of the time and try to absorb the wealth of information

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread ZR
What the stupid federal pukes dont know wont hurt them. The Terro is a semi liquid gel that ants walk on and touch with their feelers and bring back into the nest; takes a week or two to wipe it out. Place it inside the switch box or some other place snoops cant find. Ive been totally ant free

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread Herb Schoenbohm
Thanks MikeThis is important information as one of my expensive DX-Engineering control boxes was made totally inoperable by ant defecation. I wanted to try and repair the relay box but DX-E said their schematic was proprietary and they would not let me see it. So I had no choice but to

Re: Topband: Don Miller and CW Pileup Management

2012-05-23 Thread Kenneth Grimm
Yep, that's the way I remember it too. It is just so sad that he had that other side of him that got him in trouble with the ham community and society generally. Poor guy. Such a waste. 73, Ken - K4XL On Wed, May 23, 2012 at 4:45 PM, k...@aol.com k...@aol.com wrote: Hi Don Yes - we both

Topband: W4BPD and W9WNV

2012-05-23 Thread John Harden, D.M.D.
I was on during those days with about 300 watts and a 3 el Yagi. I worked Gus at exotic places like FR7ZC/J, 9U5BH, 9U5ZZ ZD9AM, etc. Ack, W4ECI, was his manager. I also remember Don Miller and his exploits. Unfortunately I QRTed about 1964 fer College es XYL's.. The later was probably a bad

Re: Topband: Don Miller and CW Pileup Management

2012-05-23 Thread ZR
I remember all of his DXpeditions, even the ones he wasnt at and have the cards to prove it.. One really comes to mind was him with a card table on some rocks with water showing and Galaxy gear on the table. Was that Serrana Bank? And taken in CA or FL iffn I remember. Carl KM1H -

Topband: Microwave relays for Beverages

2012-05-23 Thread ZR
A few hours ago I mentioned them and then an online flyer comes thru. This is a different one than what I bought but the specs are similar. Use sections in parallel for DPDT. http://www.goldmine-elec-products.com/prodinfo.asp?number=G16510 Carl KM1H

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread ZR
- Original Message - From: Mike Waters mikew...@gmail.com To: topband topband@contesting.com Sent: Wednesday, May 23, 2012 4:19 PM Subject: Re: Topband: 2 Parallel Beverages There's just one possible issue about all this that is conspicuous by its absence, as they say. At least in

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread ZR
Is this box sealed in epoxy? Why hasnt someone reverse engineered it and published the schematic? If anyone has a bad one send it to me; the least I can do is look at it with a VNA or a GR bridge. Carl KM1H - Original Message - From: Herb Schoenbohm he...@vitelcom.net To:

Re: Topband: 2 Parallel Beverages

2012-05-23 Thread rfman45
I thank each and every one of you for your well-considered thoughts on my original posting concerning 2 parallel beverages; your overwhelming response proves what a great group inhabits this reflector. I lurk on this site more than 99% of the time and try to absorb the wealth of