Re: Topband: FT8 qrm

So what's the protocol when a CW man checks a frequency, hears nothing, sends a couple of QRL? and hears nothing and begins to run stations.  Then sometime later a guy running an imaginary mode...oops...sorry, FT8 shows up and wants to park on the CW man's frequency?  Who is to blame?  I'll

Topband: Test

Want to see if this bounces. AD3F _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: CQ WW CW 160m observations (high angle)

Next few years might be full of such stuff. Time to figure out our 160m maxi-plans. 73, Guy. On Tue, Nov 28, 2017 at 4:58 PM, Roger Parsons wrote: > Interesting observation Guy. I noticed what I am almost certain was very > high angle propagation on Sunday evening at sunset

Re: Topband: CQ WW CW 160m observations

Thanks Trevour...you were very strong hereof course it helps that we can practically see each other.! Frank VO1HP 73 Frank VO1HP On Tue, Nov 28, 2017 at 10:19 PM, MR TREVOR DUNNE wrote: > You were the loudest NA station here Frank and you were workable up until > 09Z

Topband: Top Band High Angle Signals

I suspect that Guy is on to the strong possibility for the relatively poor RX conditions on 160 this past weekend. I use diversity receive with my K3. The main RX is connected to a "Dual Flag" array (basically a simplified Waller/ expanded DHDL) and a HiZ 4 square on the sub receiver. The HiZ

Re: Topband: CQ WW CW 160m observations

You were the loudest NA station here Frank and you were workable up until 09Z when I retired for the day, 73 Trevor EI2GLB - Original Message - From: VO1HP Amateur Radio To: topband@contesting.com Sent: Tue, 28 Nov 2017 16:05:02 - (GMT) Subject: Re: Topband: CQ WW

Re: Topband: CQ WW CW 160m observations (high angle)

Interesting observation Guy. I noticed what I am almost certain was very high angle propagation on Sunday evening at sunset when I was only able to hear Europe on my low dipole (very low, about 20' so a real cloud warmer). I could not hear them at all on Beverages, SAL, or receive 4 square or

Re: Topband: DHDL matching Transformer

Hi Trevor, Luis IV3PRK has good info on DHDL, based on the original by George Wallner, AA7JV See http://www.iv3prk.it/TX3A-DHDL.htm I use a 1200 ohm terminating resistor; source resistance is about 900 ohms. 900/75 = 12 so turns ratio to match is 3.5:1I use a 2 turn primary and 7 turn

Re: Topband: DX Engineering NCC-2

Hello Bill: Increased spacing might help your 160 meter performance. However with multiple sources of local noise it may not be possible to get the results you are looking for. The NCC-2 is very good when there is one source of noise. It can produce very deep nulls and make a huge difference in

Re: Topband: FT8 qrm

There were ops all over the FT8 segments, refused to even try and work them and some were some pretty rare mults for CQWWCW...gentleman agreements are of the past.sucks PAUL. N0aH Get Outlook for Android From: Topband

Re: Topband: 160 inverted L radials question

Perhaps your solution might be a sloper, using the radial bed, instead of another INV-L? I used to have an INV-L at the edge of a salt marsh in Connecticut, with 1/2 the radials on the marsh & the rest on the bog beside it. I use a pneumatic spud gun with fishing reel (see it on my QRZ page)

Re: Topband: FT8 on 160m

To me, the issue comes down to contained or not contained when it comes to signals on the bands. We're already contained by the limits of the band itself so there's effectively a finite space for everyone and if FT8 or RTTY or XYZ wanted to and was allowed to be everywhere, the QRM would be

Topband: DX Engineering NCC-2

I have the NCC-2 and 2 of the DX Engineering active verticals, the CQWW CW was the first test drive. VERY impressive results on 40M, less so on 80M and even less so on 160, compared to listening to the transmit antennas, an OCF on 40/80 and top loaded vertical on 160. Just not much peaking or

Re: Topband: CQ WW CW 160m observations

I decided to do 160 SOSB HPas that is where I have best lowband antenna these days. I found condx on first evening strange in that Eu signals were very strong on my BOG but very hard to work. USA signals were very weak on the BOG but when I would switch to the "L" most W/K became Q5but

Topband: DHDL matching Transformer

Hi All My quest to better my station continues I want to try a DHDL can someone recommend a matching Transformer and what size termination resistor should I use, I have some bn73-202 cores and I wish to use 75ohm feed line, _ Topband Reflector Archives -

Re: Topband: CQ WW CW 160m observations

One thing that occurred to me reading this and parallel threads, is that the path was really high angle. Possibly high enough to be well into the "doughnut hole" high angle null of a "pure" vertical. The presumption is that the DX is always, always, always, no exceptions, coming through at low

Re: Topband: 160 inverted L radials question

Hi James, The vertical really needs to come down directly to the central common point of the radial field for them to operate with all the advantages. Running a single wire from the base of the vertical at the ground 30 feet over to the center of a radial field could easily lose 3 or 4 dB, more

Re: Topband: 160 inverted L radials question

Jimmy, You could do that but it would not work very well. You need the maximum radial density under the vertical. Were they full sized radials or just odd lengths.? 73 Clive GM3POI -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of james soto via

Re: Topband: 160 inverted L radials question

-Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of james soto via Topband Sent: 28 November 2017 13:26 To: topband@contesting.com Subject: Topband: 160 inverted L radials question Hi folks:Iam in the process to reinstall an inverted L antenna. Due to

Topband: 160 inverted L radials question

Hi folks:Iam in the process to reinstall an inverted L antenna. Due to the category 5 hurricane that passthru the island of ST.CROIX usvi i loss 2 towers and antennas.one of the towers use to support and inverted L antenna for 160  with radials all over the tower. I will reinstall the  inverted

Re: Topband: FT8 qrm

Roger,Its the old problem with contests, where people are so eager to get that piece of paper, that they will operate across the whole band and even out of band in many cases. The big issue is whether contests are now even worth the effort, what with the ability to cheat ever greater by using