Re: Topband: 160m polarization and elevation angles

-Original Message- From: donov...@starpower.net "160 meter long distance propagation is much more efficient to the south " Do you mean "between higher latitudes and lower latitudes"? To my south there are only penguins, and Tasmanians. Luke VK3HJ _ Topband

Re: Topband: low inv-vee

Guy, Your's is about as complete an explanation as it gets. I only would like to add one aspect (which is covered by the reference to antenna efficiency) but is perhaps worth pointing out. Opinions on vertical vs. horizontal on are strongly subject to one's location. In the desert (AZ, etc.)

Re: Topband: Wednesday 160m DX Activity Night

David, I very much enjoyed our simple QSO last night. Ignore the idiots who are reduced to being pests. They happen to turn up everywhere. By the way, the QSO was very useful: I was testing the new 160 m antenna that we will be taking to KH1. As you may know, the USFWS is limiting us to

Re: Topband: low inv-vee

Just for fun, I modeled a 160m low inverted-V in NEC4.2, using 4NEC2 to look at the patterns.  The apex was 15m up.  Each leg was 40.7m long with the ends 7.5m up.  It was fed with 300 Ohm open wire dropping vertically to 1m above the ground.  I fed it from a 300 Ohm source.   Directly under

Re: Topband: Wednesday 160m DX Activity Night

It must have been "your turn" again Adrian! I worked DU7ET (more or less local), JA5BIN, and heard VE3MGY. N0FW reported my signal as "loud". There are very few folks on lately, even with an open band to many areas. I only lit up the local RBN. Finished with a QSO with Steve VK7CW, enjoying

Re: Topband: Wednesday 160m DX Activity Night

Roger, I heard you well on 1827 tonight but called for about 30 minutes and just gave up. Your signal in the QRN was 369 most of the time, High tropical QRN here. On Wed, Mar 28, 2018 at 5:27 PM, Roger Kennedy < ro...@wessexproductions.co.uk> wrote: > > Well, I'm not sure if it has been poor

Re: Topband: 160m polarization and elevation angles

Hi Mark, Very true on the HF bands. but not true on 160 meters at mid to high latitudes. On 160 meters both entry and exit polarization tend to be vertically polarized at mid to high latitudes. This also applies to the exit from the ionosphere and re-entry into the ionosphere of

Topband: BOG wire

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Re: Topband: 160m polarization and elevation angles

Mark, > I learned that polarization is not predictable after the first ionospheric bounce. Theoretically, polarization is well-defined as an electromagnetic wave progresses thru the ionosphere. What's important is the "limiting" polarization at the entry and exit points of the ionosphere, and

Re: Topband: Wednesday 160m DX Activity Night

Hi Steve This evening (29 March) was much better, a number of RBN responses from AA4VV, VE7CC-7 and W4KKN. It opened up around 10:45z. Thanks for the QSOs with VE3MGY, N0FW and N7UA. 73 Adrian VK2WF From: VK3HJ [mailto:vk3hj_l...@barefoothorse.com.au] Sent: Thursday, 29 March 2018 6:58

Re: Topband: 160m polarization and elevation angles

Carl I learned that polarization is not predictable after the first ionospheric bounce. 73 Mark K3MSB On Thu, Mar 29, 2018 at 1:30 PM, Carl Luetzelschwab < carlluetzelsch...@gmail.com> wrote: > Polarization - As Jerry K4SAV stated, the electron gyro-frequency plays an > important role on 160m

Re: Topband: low inv-vee

This is as perfect an answer as any expert could come up with :-) I've been a ham for over 42 years. But well before I was the wet-behind-the-ears Novice-class WN8BTU, many experienced Topbanders have found that *all especially successful 160m DX stations use vertical polarization. That's

Re: Topband: low inv-vee

Yes, the real world on 160 is very complicated, and by some issues that seem, anyway, to be unknown to more hams than not. W8JI had a 160 dipole up at 300 feet and ran over a year's worth of A/B tests, concluding after all that data, that the dipole would never beat a commercial-AM-BC-quality

Re: Topband: Wednesday 160m DX Activity Night

VHF is fun, yes. But keep in mind that in the southern hemisphere it's winter when we have our summer. And there are times in our summer when it's quiet and we can work them on 160. :-) 73, Mike www.w0btu.com On Thu, Mar 29, 2018, 11:41 AM David Olean wrote: > ...My goal

Topband: 160m polarization and elevation angles

Polarization - As Jerry K4SAV stated, the electron gyro-frequency plays an important role on 160m since our ionosphere is immersed in a magnetic field - it also affects ionospheric absorption and refraction. For those of us at mid to high latitudes, vertical polarization on 160m is *theoretically*

Re: Topband: Wednesday 160m DX Activity Night

I thought I saw one spot on 1823 for them..you were in that area. I was doing maintenance and listening only, so I didn't note your frequency but heard your call loud and clear..-) Lee -Original Message- From: David Olean

Re: Topband: Wednesday 160m DX Activity Night

I thought of that, Lee.  I think I was at least 1 kHz below wherever TJ2TT showed up, and I asked if the freq was in use twice, before I called CQ.  (I think they were spotted on 26 or 26.5 after I was on making calls. I never heard them )  The obvious solution is to ask me to QSY.   You don't

Re: Topband: Wednesday 160m DX Activity Night

I suspect it's because someone thought you were QRMing TJ2TT; He was pretty much QSA0 for me. Local QRN/QRM has made 160 very tough for me; I could barely hear Roger and he is usually fairly easy copy. 73 de Lee KX4TT Tampa, FL -Original Message- From: Topband

Re: Topband: Wednesday 160m DX Activity Night

Roger, I was QRV for awhile, but seem to have attracted someone who hated my guts. I was QRMed while trying to work stations. they put a carrier on top of the stations I tried to work. They QRMed the dx station and were sending false signal reports in hopes of confusing me.   Then they came

Re: Topband: Wednesday 160m DX Activity Night

Rats. I was working on my Johnson Valiant last night and forgot it was 160 activity night. I have maybe 2 to 3 more weeks before the BOG and RBOG antennas get taken down as well as the INV-L radials get removed. I keep one or two radials rolled up and connected during the summer so I can

Re: Topband: low inv-vee

If you run a NEC analysis it will show that a 160 dipole at a half wavelength height will blow away any vertical when the signal is broadside to the dipole. The people that have tried this say it aint so. At least some of the reasons are that NEC knows nothing about 160 propagation and it

Re: Topband: Wednesday 160m DX Activity Night

You were 579 in VT but you could not hear my 100W. On 3/29/2018 5:55 AM, Roger Kennedy wrote: Well conditions seemed pretty good last night . . . my RBN reports were certainly encouraging from several NA stations - one was even 49 dB over the noise ! However, there was a distinct lack of

Re: Topband: Wednesday 160m DX Activity Night

Some of us in the W9 area now have to start contending with spring storms which raises the noise level considerably, and many folks are now beginning to take down 160 RX stuff ahead of summer. It may be a summertime lull, picking back up again in the fall wt2p -- WT2P http://www.wt2p.com

Re: Topband: low inv-vee

Roger, near your dawn your signal is very good here over the years on 160. That is the time when low dipoles seem to really work well. Herb, KV4FZ On Wed, Mar 28, 2018 at 5:23 PM, Roger Kennedy < ro...@wessexproductions.co.uk> wrote: > > Well I've said it before and I'll doubtless say it again

Re: Topband: Wednesday 160m DX Activity Night

Roger They are all on FT8 more or less. Then you do not need to hear the station you work, and you can even stay late in bed. Computer fix all QSO, for you. Unfortunately , this is killing our hobby, IF arrl is not making it a separate award ,, for NO hearing QSO´+ s… BUT they do not

Topband: Wednesday 160m DX Activity Night

Well conditions seemed pretty good last night . . . my RBN reports were certainly encouraging from several NA stations - one was even 49 dB over the noise ! However, there was a distinct lack of activity - I stayed on from 0100Z for nearly 2 hours, but only worked 9 NA stations. Nothing like the

Re: Topband: low inv-vee

I never heard a dx station stronger or better on my 30m high dipole then on the vertical, even not broadside to the dipole. For that reason I don´t believe that dx signals on 160m are coming in at high angles in opposite to all other bands, except perhaps sometimes during grey line, then both

Re: Topband: low inv-vee

I seem to recall reading that the "ideal" angle between the legs was 110 degrees. How that was derived or even if it is true I do not know. I had a half sloper and converted to an inverted vee. I had done fairly well with the half sloper and not too bad with the inverted vee but with the

Re: Topband: Wednesday 160m DX Activity Night

Adrian, You are about 600 km north of me. That is certainly a sufficient distance to make a difference. Steve VK7CW is about 550 km south of me. I forgot to mention, Wednesday morning around 2030z I tried for Europe, and as per Wednesday evening, absolutely nothing in the log, nor any signals

Re: Topband: Wednesday 160m DX Activity Night

We've been expecting 7Q7EI to show up but in vain. Looks like it's time to quit with this one. >Среда, 28 марта 2018, 21:27 UTC от Roger Kennedy >: > > >Well, I'm not sure if it has been poor conditions, or a just a lack of >activity . . . > >But I've not heard