Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

I've had a full size four square on 160 for about 15 years. I still always put up Beverages. They heard well but usually did not out perform the TX array. That said, they hear "differently" as one might expect. Several years ago I put up a Hi-Z 8 circle array optimized for 160. That was

Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

To add to Dennis' comments: you can never have too many antennas (very important exception: unless they interfere with each other). Very large arrays such as 8 circle arrays form their deep nulls in the far field which may be many hundreds of yards away from the array. Very large arrays are

Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

I might suggest some flags or pennants as receiving antenna alternatives with a broader beamwidth.  Easy to throw up.  I used one for all receiving in V3M lowbands and high bands and was impressed. W0MU On 10/16/2017 2:28 PM, donov...@starpower.net wrote: Hi Chuck, I have both a full size

Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

If you browse back through the Topband archives, you'll see a common thread: "You can never have too many RX antennas!". Incoming angles vary. Sometimes a Beverage is best, other times it's a certain phased vertical array, and once in a great while it's the TX antenna or even a dipole. 73, Mike

Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

Hi Chuck, I have both a full size transmitting 4-square and a W8JI BSEF 8-circle array using 25 foot low impedance passive umbrella verticals. There are no active electronics in the W8JI's BSEF 8-circle array, unlike the Hi-Z array. While the transmitting array is an excellent receiving

Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

Chuck, I don't have the experience with both that Dennis has but I have had the same beneficial results with the HI-Z 4-8Pro Rx antenna which I'm using 8 active short antennas. Sometimes I can null another station almost totally out of the picture. There's not that much gain compared to the

Re: Topband: RDF for Transmit 4 Square vs 8 Circle Array

Chuck Having used both at a number of stations, I can speak with some experience here. The biggest virtue I have found of an 8 Circle array is the ability to put a bothersome station or noise in a null.  Most of the time, you can hear a station in the 4-square beamed direction as well on

Topband: RDF for Transmit 4 Square vs 8 Circle Array

I was always told that, if one had a 4 square, there would be no need for a receive array. I am finding this to be untrue when looking at the list of RDFs. (Receive Directivity Factor) I have snooped through the archives reading about RDF. Can anyone verify this from actual experience? Can you

Re: Topband: TZ4AM

Yes, I agree. It's supposed to be fun. Let the broadcasters be the ones to get upset about reception and propagation. 73s Ham KB4BR -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Ken Claerbout Sent: Monday, October 16, 2017 12:11 PM To:

Re: Topband: TZ4AM

Well said Ken! Rich K7ZV On Mon, October 16, 2017 9:11 am, Ken Claerbout wrote: > I thought 160 Meters was the Gentleman's band? Some of you need to take > a deep breath and relax. Surely you have more important things in your > lives? > > Jeff knows he has an RX problem and he's working on

Topband: TZ4AM

I thought 160 Meters was the Gentleman's band? Some of you need to take a deep breath and relax. Surely you have more important things in your lives? Jeff knows he has an RX problem and he's working on it. What more can he do? Topband is difficult and frustrating from many locations. A

Re: Topband: TZ4AM

I had no trouble working Jeff from the very interior of North America. . .Iowa. 73. . . Dave, W0FLS -Original Message- From: Dan Edward Dba East edwards Sent: Monday, October 16, 2017 10:33 AM To: Victor Goncharsky ; Stein-Roar Brobakken Cc: Raoul Coetzee ; Saulius

Re: Topband: TZ4AM

wait a minute. I think Jeff can hear ok.  He heard MY puny signal on 160m...it was not easy, but it IS possible without 10kw.. 73, good luck, w5xz, dan On Monday, October 16, 2017 10:29 AM, Victor Goncharsky via Topband wrote: HI Stein, What my good old friend

Re: Topband: TZ4AM

HI Stein, What my good old friend Saulius wants to say is that there's no chance to work TZ4AM from here in Central Europe unless one has 10 kW and at least full size vertical. I'm personally not paying attention to both RBN and cluster 160m TZ4AM spots anymore. On the other hand, we have

Re: Topband: TZ4AM

Thanks, I will. 2017-10-16 04:45 popiet "Stein-Roar Brobakken" rašė: > Hi > LY5W, Try go to africa and join the QRN! > > I been in africa twice on dxped, also in pacific. > > Not all spots had less than S8-s9+20 dbs noise level from time to time. > > I also operated 160m and

Re: Topband: TZ4AM

Hi LY5W, Try go to africa and join the QRN! I been in africa twice on dxped, also in pacific. Not all spots had less than S8-s9+20 dbs noise level from time to time. I also operated 160m and experienced signals «skipping» over a distance.. so he migth have wrong skip!! Best Regards,

Re: Topband: TZ4AM

Hi Sam (LY5W), Check out the QRZ page for TZ4AM for info on equipment (including antennas). Don (wd8dsb) On Mon, Oct 16, 2017 at 7:01 AM, Saulius Zalnerauskas wrote: > They think what I am wrong. But true - TZ4AM no copy 99% stations. > Wonder what trcvr he is using and

Re: Topband: TZ4AM

They think what I am wrong. But true - TZ4AM no copy 99% stations. Wonder what trcvr he is using and other RX ? Sam LY5W On Mon, Oct 16, 2017 at 12:05 PM, Victor Goncharsky wrote: > Raoul, > Tonight there was the usual TZ4AM's multi CQ with no response. Made a few > calls as need

Re: Topband: TZ4AM

Raoul, Tonight there was the usual TZ4AM's multi CQ with no response. Made a few calls as need TZ on top but no answer. At the moment running 900w and 27.5m top hat vertical so barefoot/dipole is not the case here. Never had problems working that part of Africa, the only one missed last year