Re: Topband: What do you use as a RUN Antenna?

Diversity IS the way to go** But if you lack the capability, you need an additional RX antenna that covers more directions and/or vertical angles. In my 18x22ft large garden I use a Wellbrookloop on a small rotor at ground level. Turning it around I can effectively kill interference from my

Re: Topband: What do you use as a RUN Antenna?

, at 11:10, Mark van Wijk pa...@home.nl wrote: Diversity IS the way to go** But if you lack the capability, you need an additional RX antenna that covers more directions and/or vertical angles. In my 18x22ft large garden I use a Wellbrookloop on a small rotor at ground level. Turning

Re: Topband: What do you use as a RUN Antenna?

it yourself, I would rather advise the suggested N6KR tuned loop in this thread. 73 Mark, PA5MW On 1 feb. 2012, at 21:04, Mark van Wijk pa...@home.nl wrote: ALA1530S+ However, It does need proper common mode filtering. And required secure detuning of my TX antenna to clear out re-radiated noise

Re: Topband: Proper Decorum On The Gentleman's Band...

So, in these times of I want it all at no effort, let's raise the bar. Create new thresholds, filters etc. at which only serious new ops will get through. Close all DX clusters for Topband; yeah hardly realstic, I know. But.. Do not spot on the cluster anymore. 73 Mark, PA5MW On 9 feb. 2012,

Re: Topband: Radials help

It is time to stop talking. This topic pops up every six months or so for many years now. Go to a defined and mutual agreed property and build / test all mentioned radial models. No need to keep throwing theories, agreed/non agreed standards, computer models and hardly relevant

Re: Topband: Radials help (Mark van Wijk)

Please do not abuse my wording. Or maybe I need to clarify. I DO welcome any discussion on exsting and new proposed antenna/ground systems. However, discussions tend to be jammed by people throwing in basic theories, papers, even laws of physics from those who seem to oppose a (valid) new idea

Re: Topband: Use of Remote Receivers During 160 Meter Contests

Hi Tree, all, I believe there 's a third basic issue here: 3. The change of the leveling playing field Adaptions of shortcuts introduces new opportunities within the rules. ***VERY TRUE With the new Remote RX possibility, to be competitive I am forced to do the allowed upgrade and add two

Re: Topband: Use of Remote Receivers During 160 Meter Contests

QSL ! Congratulations on the achieved remote RX/TX station setup. I tend to regard my 23x28ft backyard quite a challenge too for Topband, nevertheless found my way too.. 73 Mark, PA5MW -Original Message- From: Cecil Sent: Wednesday, March 18, 2015 1:31 PM To: W7RH Cc:

Re: Topband: DSP and Latency

Audio latency 'differences' can be shown in the shack already; my TT ORION vs a K2 vs a Perseus SDR show small but significant time differences. Especially the SDR is 'behind'. 73 Mark, PA5MW _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Use of Remote Receivers During 160 Meter Contests

Well said. Thank you! 73 Mark, PA5MW _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Use of Remote Receivers During 160 Meter Contests

), walk the extra mile and take your butt to the remote location as well. If you can manage building such a remote station, a TX antenna will be possible too. 73 Mark, PA5MW From: John Crovelli Sent: Sunday, March 15, 2015 8:03 PM To: Mark van Wijk, PA5MW ; topband@contesting.com

Re: Topband: CQWW160 New Rule!! ....good news

Robin, If you want to level matters and want no discussion (yes there has been a lot), then please refrain from doing it :) You say: This subject has been thoroughly beaten to death and hammered flat. Extensively. (much agree here ) There are folks out there who have decided that

Re: Topband: Diversity-capable transceivers

Ditto here So now what? - Buy a K3S +optional 2nd RX? - Or..add a 'second' R4C (+Sherwood mods) to my shack and lock them?   73 Mark, PA5MW > Op 1 december 2015 om 2:18 schreef Cecil Acuff : > > > Yup...wish I could find an RX-366 to upgrade my OII... > >

Topband: Where did OK0EV beacon on 1854kHz go?

Re-installing the RX antennas for this season, I noticed that OK0EV on 1854 kHz has disappeared. Anyone know what has happened? 73 Mark, PA5MW _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Strange propagation

Can they add /RHR or such please? So I can choose if I want to make this kind of QSO. BTW, I require a remote solution for climbing Everest or participate in Car Racing. That is currently not possible from where I am sitting and I demand the option. 73 Mark, PA5MW -Original

Re: Topband: Strange propagation

Exactly my point. I find my fun in this hobby by (mutual) achievement. However, I will not try to dictate how others should have their fun. Still I have a personal choice in what kind of radio contact I prefer. But that solution will be outside a debate. Tom is also right on the spot. Turning

Re: Topband: 1 center point to ground all 8 beverages??

And this becomes even more critical if your RX antennas offer less gain like from a BOG where its output level is much lower, near the local background noise. 73, Mark PA5MW > Op 22 maart 2016 om 5:44 schreef Jim Brown : > > On Mon,3/21/2016 9:35 PM,

Topband: Post contest season: TX antenna vs RX antenna cros-stalk. What do you do?

Now that we are 'sort of in post contest season mode' and sharing some good ideas, there is another question: During recent Field-day setups I noticed severe cross-talk issues between TX antennas and the separate RX antenna circuits. For sure any TX/R relay circuitry offers roughly 50-65 dB

Re: Topband: Post contest season: TX antenna vs RX antennacros-stalk. What do you do?

as well as the separate RX antennes anyway. 73 Mark, PA5MW -Original Message- From: Kees Nijdam Sent: Thursday, March 24, 2016 11:05 AM To: Mark van Wijk, PA5MW Subject: Re: Topband: Post contest season: TX antenna vs RX antennacros-stalk. What do you do? Hi Mark, When receiving

Re: Topband: Post contest season: TX antenna vs RXantenna cros-stalk. What do you do?

that additionally for sure at home and at any FD QTH in the future. 73 Mark, PA5MW -Original Message- From: JC Sent: Thursday, March 24, 2016 1:14 PM To: 'Mark van Wijk, PA5MW' ; 'william radice' ; topband@contesting.com Subject: Re: Topband: Post contest season: TX antenna vs RXantenna

Re: Topband: Post contest season: TX antenna vs RX antenna cros-stalk. What do you do?

, PA5MW -Original Message- From: Jim Brown Sent: Thursday, March 24, 2016 6:11 PM To: topband@contesting.com Subject: Re: Topband: Post contest season: TX antenna vs RX antenna cros-stalk. What do you do? On Wed,3/23/2016 11:38 PM, Mark van Wijk, PA5MW wrote: The problem is that while

Re: Topband: Post contest season: TX antenna vs RXantenna cros-stalk. What do you do?

is abt 65dB You do the math when you have 9+40 signals on a large antenna like a fullsize TX deltaloop on 40 & 80m 73 Mark, PA5MW -Original Message- From: Terry Posey Sent: Thursday, March 24, 2016 12:04 PM To: 'Mark van Wijk, PA5MW' ; 'william radice' ; topband@contesting

Re: Topband: Post contest season: TX antenna vs RX antenna cros-stalk. What do you do?

the KD9SV "front end saver" and it does the job completely. BILL K4OWR On 3/22/2016 5:44 AM, Mark van Wijk wrote: Now that we are 'sort of in post contest season mode' and sharing some good ideas, there is another question: During recent Field-day setups I noticed severe cross-talk issu

Re: Topband: VK0EK confirmation

Jim, This "referee" should act only if people start calling each other names or call for a public crucifiction or such. Everyone is entitled to their opinion and response. You can personally filter-out or just neglect content from those you consider less relevant in your in-box. On a forum

Re: Topband: Adding chicken wire or mesh on top of radial field

Some field experiment results from 2016 Location: large farm field Antenna: Inverted L, using two 21m masts Note: this theoretically puts Rs at around 18 Ohm Ground: - Checken mesh: 6 pieces 8x1m crossed under the TX vertical, which offers almost 100% coverage at  8m diameter - PVC

Re: Topband: VU2GSM webSDR use

Hi Manoj. Much appreciate your (RX antenna) efforts ! Don't worry too much about the typical negative comments, especially those on chat-rooms. Today's world is too much about "instant gratification at no personal effort". And self-declared know-it-all personalities :) If I cannot work you on

Topband: Maritime Navigation Beacons on Topband from EU Re: Conditions on 160m for ARRL Contest

Best explanation can be found here: http://alancordwell.co.uk/Legacy/radionavigation/russian/bras.html 73 Mark PA5MW _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Conditions on 160m for ARRL Contest

I also read somewhere these are navigation beacons in North East-sea area. Anyone have a known explaining source for this? Their transmission consist of three T's; where the 3rd one is 20dB lower in output and can only be hrd when they are very loud. About 21 of these can be hrd on 160m, where

Re: Topband: Bottom End Beacons

And just tonight they are loud again: https://www.flickr.com/photos/pa5mw/39676032834/in/dateposted/ Signal level:  25dB above bandnoise RX antenna: 60mtr  BOG in a ditch QTF 30 73 Mark, PA5MW On 2/20/2018 10:41 AM, Roger Kennedy wrote: Yes, upon searching, I came across Alan Cordwell's