Good conditions this morning, quiet band, strong signals from Asia
into New Mexico.
73,
Jim w8zr
Sent from my iPhone
> On Jan 17, 2020, at 2:59 AM, Mike Devereux via Topband
> <topband@contesting.com> wrote:
>
> Roger
> I had a great night working Asia HS0 and lots of JA also USA. Conditions here
> seemed good. Was using my Dipole!
> Mike G 3 SED
>
> Sent from my iPhone
>
>> On 16 Jan 2020, at 17:01, topband-request@contesting.com wrote:
>>
>> Send Topband mailing list submissions to
>> topband@contesting.com
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> http://lists.contesting.com/mailman/listinfo/topband
>> or, via email, send a message with subject or body 'help' to
>> topband-request@contesting.com
>>
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>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Topband digest..."
>>
>>
>> Today's Topics:
>>
>> 1. Re: Topband resource (W0MU Mike Fatchett)
>> 2. Re: Topband resource (Roger Parsons)
>> 3. Re: Topband resource vertical vs. horizontal (David Olean)
>> 4. Re: Topband resource (Jim Brown)
>> 5. Hamvention related updates (Tim Duffy)
>> 6. Re: Topband resource (Jim Brown)
>> 7. Topband resource (Lee STRAHAN)
>> 8. Re: Topband resource (Jim Brown)
>> 9. Re: Topband resource (Arthur Delibert)
>> 10. Re: Topband resource (Roger Parsons)
>> 11. Re: Topband resource (Jim Brown)
>> 12. Re: Topband resource (Roger Parsons)
>> 13. Topband resource (Jim Thomson)
>> 14. Wednesday 160m DX CW Activity Night (Roger Kennedy)
>> 15. Re: Wednesday 160m DX CW Activity Night (Sam Josuweit)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 15 Jan 2020 10:53:32 -0700
>> From: W0MU Mike Fatchett <w0mu@w0mu.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: Topband resource
>> Message-ID: <7702344f-b0a0-1a2a-f943-3b69a509d683@w0mu.com>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> I was only really able to work Carib/CA/SA with my inverted v at 70 ft.?
>> With the inverted L I get our far better.? I am a very long way from any
>> salt water in any direction.
>>
>> W0MU
>>
>>>> On 1/15/2020 9:17 AM, donovanf@starpower.net wrote:
>>> Roger has 27 topband QSOs in my log since February 1993,
>>> well done!
>>>
>>>
>>> Its interesting how our transmitting antenna experiences are exactly
>>> opposite on both 160 and 80 meters. I've had little success with
>>> 160 meter horizontal dipoles 100 to 200 feet high compared to
>>> my 4-square vertical array which always perform superbly.
>>>
>>>
>>> I use only vertically polarized antennas f or topband receiving ,
>>> a 350 foot diameter W8JI/W5ZN/N4HY passive 8-circle array,
>>> 580 foot Beverages and my transmitting 4-square array. All
>>> receive 6 to 10 dB better for DX than horizontal dipoles at my QTH.
>>> Many easily copied DX signals on the verticals are completely
>>> inaudible on the horizontal dipoles.
>>>
>>>
>>>
>>> On 80 meters I use only horizontally polarized 2 element quads
>>> 170 feet high for transmitting which are far superior to any verticals
>>> I've tried although I've never tried anything more sophisticated than
>>> a 4-square transmitting array.
>>>
>>>
>>> My 80 meter quads perform very well as receiving antennas, on
>>> some -- but not all -- very weak signals they outperform the
>>> 175 foot diameter passive 8-circle array and 580 foot Beverages.
>>>
>>>
>>> You can never have too many antennas...
>>> Unless they interfere with each other, a non-trivial issue.
>>>
>>>
>>> 73
>>> Frank
>>> W3LPL
>>>
>>> ----- Original Message -----
>>>
>>> From: "Roger Kennedy" <roger@wessexproductions.co.uk>
>>> To: topband@contesting.com
>>> Sent: Tuesday, January 14, 2020 10:48:51 PM
>>> Subject: Topband: Topband resource
>>>
>>>
>>> "However, 160 needs vertical polarization for consistent long DX."
>>>
>>> So how is it that I consistently work all over the world on 160m with my
>>> horizontal dipole at 50ft?! (and my signals seem to often be pretty
>>> comparable with other Brits using verticals}
>>>
>>> You certainly need a Vertical to work DX on 80m . . . but in my experience
>>> 160m propagation is very different . . . I'm guessing it's often quite high
>>> angle due to multi-hop or ducting.
>>>
>>> Also, I don't understand why on the Web page they are talking about NA
>>> stations coming on Top Band at 1730 UTC to work Europe . . . I don't find
>>> the band opens to NA until at least 2200 . . . and for me signals are always
>>> much better after midnight.
>>>
>>> Roger G3YRO
>>>
>>>
>>> _________________
>>> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>>>
>>> _________________
>>> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 15 Jan 2020 17:55:15 +0000 (UTC)
>> From: Roger Parsons <ve3zi@yahoo.com>
>> To: TopBand List <topband@contesting.com>
>> Cc: "Manuals@ArtekManuals.com" <Manuals@ArtekManuals.com>
>> Subject: Re: Topband: Topband resource
>> Message-ID: <951245210.13893125.1579110915703@mail.yahoo.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> NR1DX wrote: "Apples and oranges." regarding my antennas.
>>
>> Not really.
>>
>> There is very little pattern difference between a purely horizontal dipole
>> and an inverted V provided that the angle of the V is not too acute. A
>> horizontal dipole 5/8 wavelength high has predominantly low angle? radiation.
>>
>> W4RNL is sadly an SK. However, he designed and described a great many
>> antenna systems one of which is a half wave vertical array for 160m. I have
>> one. Here.
>>
>> 73 Roger
>> VE3ZI
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 15 Jan 2020 18:07:38 +0000
>> From: David Olean <k1whs@metrocast.net>
>> To: donovanf@starpower.net, topband@contesting.com
>> Subject: Re: Topband: Topband resource vertical vs. horizontal
>> Message-ID: <e131a7d6-c187-c45d-b38b-9221c54e477a@metrocast.net>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> I was always intrigued by the success of our "Down Under" friends in
>> VK6. They tried vertical polarization and it was horrible. They had much
>> better luck with horizontal wires.? I think this had much to do with the
>> gyro frequency.? It depends on where you are in the world.? I am about
>> 30 miles away from salt water. My ground is poor with hills and rocky
>> soil.? The tops of the local hills are solid rock. ? I tried an inverted
>> vee antenna for 160. It worked, but not very well.? My signal was sort
>> of like chopped liver. No one would answer me when I called!? I did
>> catch an opening, however, where it worked very well and I nabbed two JA
>> stations. I have a recording of one of the? QSOs , and my signal got
>> very loud in JA at times. Switching to a vertical here, there was no
>> comparison. I went from chopped liver to meat loaf and gravy. Still it
>> was a long time before I worked another JA, and when I did, it was a
>> squeaker!
>>
>> 73
>>
>> Dave K1WHS
>>
>>>> On 1/15/2020 4:17 PM, donovanf@starpower.net wrote:
>>> Roger has 27 topband QSOs in my log since February 1993,
>>> well done!
>>>
>>>
>>> Its interesting how our transmitting antenna experiences are exactly
>>> opposite on both 160 and 80 meters. I've had little success with
>>> 160 meter horizontal dipoles 100 to 200 feet high compared to
>>> my 4-square vertical array which always perform superbly.
>>>
>>>
>>> I use only vertically polarized antennas f or topband receiving ,
>>> a 350 foot diameter W8JI/W5ZN/N4HY passive 8-circle array,
>>> 580 foot Beverages and my transmitting 4-square array. All
>>> receive 6 to 10 dB better for DX than horizontal dipoles at my QTH.
>>> Many easily copied DX signals on the verticals are completely
>>> inaudible on the horizontal dipoles.
>>>
>>>
>>>
>>> On 80 meters I use only horizontally polarized 2 element quads
>>> 170 feet high for transmitting which are far superior to any verticals
>>> I've tried although I've never tried anything more sophisticated than
>>> a 4-square transmitting array.
>>>
>>>
>>> My 80 meter quads perform very well as receiving antennas, on
>>> some -- but not all -- very weak signals they outperform the
>>> 175 foot diameter passive 8-circle array and 580 foot Beverages.
>>>
>>>
>>> You can never have too many antennas...
>>> Unless they interfere with each other, a non-trivial issue.
>>>
>>>
>>> 73
>>> Frank
>>> W3LPL
>>>
>>> ----- Original Message -----
>>>
>>> From: "Roger Kennedy" <roger@wessexproductions.co.uk>
>>> To: topband@contesting.com
>>> Sent: Tuesday, January 14, 2020 10:48:51 PM
>>> Subject: Topband: Topband resource
>>>
>>>
>>> "However, 160 needs vertical polarization for consistent long DX."
>>>
>>> So how is it that I consistently work all over the world on 160m with my
>>> horizontal dipole at 50ft?! (and my signals seem to often be pretty
>>> comparable with other Brits using verticals}
>>>
>>> You certainly need a Vertical to work DX on 80m . . . but in my experience
>>> 160m propagation is very different . . . I'm guessing it's often quite high
>>> angle due to multi-hop or ducting.
>>>
>>> Also, I don't understand why on the Web page they are talking about NA
>>> stations coming on Top Band at 1730 UTC to work Europe . . . I don't find
>>> the band opens to NA until at least 2200 . . . and for me signals are always
>>> much better after midnight.
>>>
>>> Roger G3YRO
>>>
>>>
>>> _________________
>>> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>>>
>>> _________________
>>> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Wed, 15 Jan 2020 10:44:36 -0800
>> From: Jim Brown <jim@audiosystemsgroup.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: Topband resource
>> Message-ID:
>> <44c7f6e0-6802-364d-d982-3678a67d0d2c@audiosystemsgroup.com>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> It's more than antennas. There's also propagation. You're 700 miles ESE
>> of me, which gives you a path to EU over less of the auroral zone.
>>
>> AND there's noise, which has been increasing over time. My first years
>> in W6 were more productive for CW on Topband than now -- I have a dozen
>> or so countries in the log from the solar minimum of those earlier years.
>>
>> 73, Jim K9YC
>>
>>>> On 1/15/2020 6:21 AM, Wes wrote:
>>> Roger is in my logbook, along with at least five other "G" stations.? My
>>> station is described on my QRZ page.? I receive on the TX antenna.
>>>
>>> Wes? N7WS
>>
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Wed, 15 Jan 2020 13:44:46 -0500
>> From: "Tim Duffy" <k3lr@k3lr.com>
>> To: <topband@contesting.com>
>> Subject: Topband: Hamvention related updates
>> Message-ID: <005001d5cbd3$dc680440$95380cc0$@k3lr.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> 2020 Dayton Contest University Professors and the 2020 Course Outline have
>> been posted.
>>
>> <https://www.contestuniversity.com/> https://www.contestuniversity.com/
>>
>> <https://www.contestuniversity.com/course-outline/>
>> https://www.contestuniversity.com/course-outline/
>>
>>
>>
>> 2020 Dayton TopBand Dinner speaker is Glenn Johnson, W0GJ
>>
>> <https://www.topbanddinner.com/> https://www.topbanddinner.com/
>>
>> Info about Glenn's talk is here:
>>
>> <https://www.topbanddinner.com/wp-content/uploads/2020/01/VP6R-pg1-3.pdf>
>> https://www.topbanddinner.com/wp-content/uploads/2020/01/VP6R-pg1-3.pdf
>>
>>
>>
>> The 28th Annual Dayton Contest Dinner
>>
>> <https://www.contestdinner.com/> https://www.contestdinner.com/
>>
>> Our dinner speaker is Bryant, KG5HVO - his bio is here:
>>
>>
>> <https://www.contestdinner.com/wp-content/uploads/2020/01/Bryant-Rascoll-KG5
>> HVO.pdf>
>> https://www.contestdinner.com/wp-content/uploads/2020/01/Bryant-Rascoll-KG5H
>> VO.pdf
>>
>>
>>
>> 73
>>
>> Tim K3LR
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 6
>> Date: Wed, 15 Jan 2020 10:59:02 -0800
>> From: Jim Brown <jim@audiosystemsgroup.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: Topband resource
>> Message-ID:
>> <95b6203b-23e9-b2e4-1f0a-4f59174130d4@audiosystemsgroup.com>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>>>> On 1/15/2020 9:55 AM, Roger Parsons via Topband wrote:
>>> There is very little pattern difference between a purely horizontal dipole
>>> and an inverted V provided that the angle of the V is not too acute. A
>>> horizontal dipole 5/8 wavelength high has predominantly low angle?
>>> radiation.
>>
>> But there IS a difference in efficiency that looking ONLY at the pattern
>> misses. To understand this, take a look at
>>
>> http://k9yc.com/VertOrHorizontal-Slides.pdf
>>
>> starting around slide #18, which plots the pattern of an 80M dipole as
>> it's height is varied ON THE SAME AXES, and the following slide, which
>> picks points off of those curves to show gain vs height at vertical
>> angles of 5, 10, 15, 20, and 70 degrees. Slide #19 clearly shows that
>> gain at low angles increases with mounting height. To apply these data
>> to 160M, simply multiply height by 2.
>>
>> There is, of course, also the matter of how horizontally and vertically
>> polarized waves propagate, and how they are affected by nearby earth.
>> Vertically polarized waves encounter a very strong loss component from
>> poor soil conductivity, while horizontally polarized waves are almost
>> unaffected.
>>
>> 73, Jim K9YC
>>
>>
>> ------------------------------
>>
>> Message: 7
>> Date: Wed, 15 Jan 2020 19:13:43 +0000
>> From: Lee STRAHAN <k7tjr@msn.com>
>> To: "topband@contesting.com" <topband@contesting.com>
>> Subject: Topband: Topband resource
>> Message-ID:
>>
>> <MWHPR05MB28163BDA6E7E5B04DB0719C9F5370@MWHPR05MB2816.namprd05.prod.outlook.com>
>>
>> Content-Type: text/plain; charset="utf-8"
>>
>> And from the Northwest I have a slightly different observation of
>> horizontal/vertical questions. What I have noticed is this. I more or less
>> equate Horizontal antennas with high angle and vertical with low. The EU
>> stations are usually mostly looking West into the setting sun. The East
>> coast stations are looking into the total darkness toward EU mostly. Here in
>> the Northwest we look into darkness toward EU and the East coast. I mention
>> this because observations of high angle signals are VERY rare looking East
>> toward EU. Maybe twice in 10 years. However looking West toward the setting
>> sun and JA and UA0 I often see signals start early on the low angle vertical
>> antennas and progress toward high angle signals in a same setting. The low
>> horizontal takes over as the signals apparently get to a higher angle. I am
>> about 200 miles from the Pacific. I have on my project list (way way down
>> it) to build a high angle, low elevation horizontal array with a high RDF
>> and gain just to see what it
>> would do. Unfortunately it stays way down the list.
>> For me Frank LPL says it all " You can never have too many antennas...
>> Unless they interfere with each other, a non-trivial issue."
>> Lee K7TJR OR
>>
>>
>> It's more than antennas. There's also propagation. You're 700 miles ESE of
>> me, which gives you a path to EU over less of the auroral zone.
>>
>> AND there's noise, which has been increasing over time. My first years in W6
>> were more productive for CW on Topband than now -- I have a dozen or so
>> countries in the log from the solar minimum of those earlier years.
>>
>> 73, Jim K9YC
>>
>>>> On 1/15/2020 6:21 AM, Wes wrote:
>>> Roger is in my logbook, along with at least five other "G" stations.?
>>> My station is described on my QRZ page.? I receive on the TX antenna.
>>>
>>> Wes? N7WS
>>
>> _________________
>> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>>
>> ------------------------------
>>
>> Message: 8
>> Date: Wed, 15 Jan 2020 11:56:34 -0800
>> From: Jim Brown <jim@audiosystemsgroup.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: Topband resource
>> Message-ID:
>> <7145684d-f7eb-21e9-5624-5c9a4d466b97@audiosystemsgroup.com>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>>>> On 1/15/2020 11:13 AM, Lee STRAHAN wrote:
>>> And from the Northwest I have a slightly different observation of
>>> horizontal/vertical questions.
>>
>> Your analysis makes lots of sense, Lee. It's consistent with what I've
>> read from trustworthy sources about propagation.
>>
>> 73, Jim K9YC
>>
>>
>> ------------------------------
>>
>> Message: 9
>> Date: Wed, 15 Jan 2020 20:06:36 +0000
>> From: Arthur Delibert <radio75a3@msn.com>
>> To: "topband@contesting.com" <topband@contesting.com>,
>> "jim@audiosystemsgroup.com" <jim@audiosystemsgroup.com>
>> Subject: Re: Topband: Topband resource
>> Message-ID:
>>
>> <SN6PR10MB26089AC28AC176BF2ABC746FE4370@SN6PR10MB2608.namprd10.prod.outlook.com>
>>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Back in the late 90s, there were a pair of articles in QST about a receiving
>> antenna for 80 and 160 that rejects local noise. The antenna was low and
>> horizontal, it was exceptionally quiet even in a somewhat noisy location,
>> and it had a very high reception angle. I recall that the authors said they
>> could hear pretty much everything the "big boys" could hear, but for a
>> shorter window of time. Also seems consistent with what Lee said.
>>
>> Overall, I have to say that 160M propagation is still somewhat mysterious,
>> and we should be careful about judging too quickly what others describe as
>> their experience. We're like the three blind men describing the elephant:
>> each of us has hold of a different part and so we have different
>> experiences. We won't understand the full picture until we respect and
>> appreciate each other's experiences.
>>
>> 'Nuf said.
>>
>> Art Delibert, KB3FJO
>>
>> ________________________________
>> From: Topband <topband-bounces+radio75a3=msn.com@contesting.com> on behalf
>> of Jim Brown <jim@audiosystemsgroup.com>
>> Sent: Wednesday, January 15, 2020 2:56 PM
>> To: topband@contesting.com <topband@contesting.com>
>> Subject: Re: Topband: Topband resource
>>
>>>> On 1/15/2020 11:13 AM, Lee STRAHAN wrote:
>>> And from the Northwest I have a slightly different observation of
>>> horizontal/vertical questions.
>>
>> Your analysis makes lots of sense, Lee. It's consistent with what I've
>> read from trustworthy sources about propagation.
>>
>> 73, Jim K9YC
>> _________________
>> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
>>
>>
>> ------------------------------
>>
>> Message: 10
>> Date: Wed, 15 Jan 2020 21:25:15 +0000 (UTC)
>> From: Roger Parsons <ve3zi@yahoo.com>
>> To: Topband <topband@contesting.com>, "jim@audiosystemsgroup.com"
>> <jim@audiosystemsgroup.com>
>> Subject: Re: Topband: Topband resource
>> Message-ID: <1518173527.14041626.1579123515579@mail.yahoo.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> K9YC wrote: "But there IS a difference in efficiency that looking ONLY at
>> the pattern misses."
>>
>> Your point is unclear to me. Of course the pattern of a horizontal antenna
>> changes with changing height and with other environmental factors. If the
>> antenna is actually on the ground the efficiency is pretty terrible, but it
>> does not have to be very high before efficiency does not change meaningfully
>> with height - assuming that total radiation is considered rather than just
>> that which is useful.
>>
>> However, I was only describing a horizontal dipole at around 5/8 wavelength
>> high. NR1DX suggested that because the ends are lower than the centre that
>> there was now an additional "significant vertical component". There is not
>> if the included angle is shallow, which in my case it is.*
>>
>> 73 Roger
>> VE3ZI
>>
>> *(I stated that the ends were at 250' - they are at least that, and could be
>> up to about 290' - but I have not accurately measured the tension in the
>> support rope nor allowed for stretch so I cannot be specific about the
>> catenary.)
>>
>>
>> ------------------------------
>>
>> Message: 11
>> Date: Wed, 15 Jan 2020 14:05:29 -0800
>> From: Jim Brown <jim@audiosystemsgroup.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: Topband resource
>> Message-ID:
>> <67e9dc98-c95d-7d1e-73ad-86c466694923@audiosystemsgroup.com>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>>>> On 1/15/2020 1:25 PM, Roger Parsons via Topband wrote:
>>> Your point is unclear to me.
>>
>> Did you study the slides?
>>
>> 73, Jim K9YC
>>
>>
>> ------------------------------
>>
>> Message: 12
>> Date: Wed, 15 Jan 2020 23:36:22 +0000 (UTC)
>> From: Roger Parsons <ve3zi@yahoo.com>
>> To: Topband <topband@contesting.com>, "jim@audiosystemsgroup.com"
>> <jim@audiosystemsgroup.com>
>> Subject: Re: Topband: Topband resource
>> Message-ID: <1797291964.14123383.1579131382152@mail.yahoo.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>> Yes
>>
>>
>> ------------------------------
>>
>> Message: 13
>> Date: Wed, 15 Jan 2020 21:05:27 -0800
>> From: "Jim Thomson" <jim.thom@telus.net>
>> To: "TopBand List" <topband@contesting.com>
>> Subject: Topband: Topband resource
>> Message-ID: <9F9A9A2454FD459D8243CE20F30DE4CE@DESKTOPSV54DBH>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Date: Wed, 15 Jan 2020 15:58:57 +0000 (UTC)
>> From: Roger Parsons <ve3zi@yahoo.com>
>> To: topband@contesting.com
>> Subject: Re: Topband: Topband resource
>>
>> <W8JI's experience with a horizontal dipole at 300 ft is often quoted as
>> proof that only vertical antennas are useful for 160m DX. This is not my
>> experience with a dipole with the centre at 320 ft and the ends at over
>> 250'. In its favoured directions it is equal to a <W4RNL half wave vertical
>> array over a very large radial system. It is unsurprisingly not as good off
>> the ends, and quite is useless for relatively local communications.
>> <I am also inclined to support Roger, G3YRO, in his use of a low dipole,
>> having myself successfully used relatively low horizontal antennas for DX in
>> the past. There are most certainly times when higher angles are useful for
>> DX - and possibly more frequently than <we imagine. There actually have to
>> be, otherwise Roger would never work any DX at all. Note, this does not mean
>> that a good vertical antenna is not often or even usually better than a low
>> horizontal one. Finally, the UK is small compared to many other <countries,
>> but it is not actually a tiny island. Roger's path to North America is over
>> about 300 km of land, and he is more than 10km from the sea in any direction.
>>
>> <73 RogerVE3ZI/G3RBP
>>
>> ## AFAIK, W8JIs.. dipole was actually an inverted vee, with the
>> apex at 300 feet....with no info on enclosed angle.
>> Per the older arrl ant books, Inverted vees...with a 90 deg
>> enclosed angle are omni directional.
>> But they conducted that test on 80m, with an inverted vee up 60
>> feet, with a 90 deg enclosed angle. The vee was rotated 90 degs....
>> and signals 900 miles away did not change. No mention whether a
>> real CM balun was used.
>>
>> ## Plenty of 80m rotary dipoles and 80m yagis that perform
>> exceptionally well..at heights of 100-150 ft. That would extrapolate
>> to 200-300 ft
>> on 160m. Years ago, a fellow In Ore had installed the 1st F12
>> 160 rotary dipole.... which I believe was up aprx 120 ft. His
>> 1st contact
>> was a 4X4. Several folks with 2 el....shorty 40 yagis up 70 ft,
>> report that the shorty 40 yagi ate their 40m 4 squares hands
>> down.
>> Some have had great success with a half wave sloper......used in
>> conjunction with a delta loop reflector...apex up. In some cases, a
>> half wave sloper
>> was used on either side of the delta loop REF. So 2 switchable
>> directions were obtained.
>>
>> Jim VE7RF
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 14
>> Date: Thu, 16 Jan 2020 16:00:42 -0000
>> From: "Roger Kennedy" <roger@wessexproductions.co.uk>
>> To: <topband@contesting.com>
>> Subject: Topband: Wednesday 160m DX CW Activity Night
>> Message-ID: <8A0C7DAFAD1D4A90BF2B36830597E599@Packard>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>> Well sadly conditions seemed very poor last night . . .
>>
>> My own signals were 20 to 30dB down on what I would normally see on NA RBN
>> sites
>>
>> I managed just 4 NA QSOs . . . but heard several other people calling me
>> that were way down in the noise.
>>
>> Not sure how many stations were on across the pond, but heard lots of other
>> EU stations calling CQ, but getting few replies.
>>
>> Thanks to all those that made the effort to come on the band . . . let's
>> hope conditions are better next Wednesday !
>>
>> 73 Roger G3YRO
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 15
>> Date: Thu, 16 Jan 2020 11:20:41 -0500
>> From: "Sam Josuweit" <samjos@epix.net>
>> To: "'Roger Kennedy'" <roger@wessexproductions.co.uk>,
>> <topband@contesting.com>
>> Subject: Re: Topband: Wednesday 160m DX CW Activity Night
>> Message-ID: <003f01d5cc88$e5fb2e00$b1f18a00$@epix.net>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Lots of static crashes from a storm front moving into the NE US. Very noisy
>> last night.
>>
>> Sam(N3XZ)
>>
>>
>> -----Original Message-----
>> From: Topband [mailto:topband-bounces+samjos=epix.net@contesting.com] On
>> Behalf Of Roger Kennedy
>> Sent: Thursday, January 16, 2020 11:01 AM
>> To: topband@contesting.com
>> Subject: Topband: Wednesday 160m DX CW Activity Night
>>
>>
>> Well sadly conditions seemed very poor last night . . .
>>
>> My own signals were 20 to 30dB down on what I would normally see on NA RBN
>> sites
>>
>> I managed just 4 NA QSOs . . . but heard several other people calling me
>> that were way down in the noise.
>>
>> Not sure how many stations were on across the pond, but heard lots of other
>> EU stations calling CQ, but getting few replies.
>>
>> Thanks to all those that made the effort to come on the band . . . let's
>> hope conditions are better next Wednesday !
>>
>> 73 Roger G3YRO
>>
>>
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>>
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>> ------------------------------
>>
>> End of Topband Digest, Vol 205, Issue 21
>> ****************************************
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