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1. Topband: Interesting Propagation Anomaly 5/26/02 - 0030z (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sat, 01 Jun 2002 19:11:11 +0100; Yes, both NL7Z and I have seen similar occurences. In our case, we have worked VE1's coming out of the south. Here are the similarities: This only happens during the summer months. It only happens wh; /archives//html/Topband/2002-06/msg00003.html (7,535 bytes)
2. Topband: skew path example (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Mon, 17 Sep 2001 02:45:02 +0100; During the last solar cycle minimum, both NL7Z and I worked Bernie, ZS4TX on 160. NL7Z (Kevin) worked Bernie around ZS sunset. At that time Kevin was hearing other stations over the pole from Europe; /archives//html/Topband/2001-09/msg00095.html (7,515 bytes)
3. Topband: skew path (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Thu, 27 Sep 2001 02:10:20 +0100; Skew path on 160 is not real common here; the rarity makes it difficult to examine. On other bands the same skew paths seem much more common. As an example, in last years's WW CW I worked dozens of s; /archives//html/Topband/2001-09/msg00147.html (8,342 bytes)
4. Topband: Take off angles (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sun, 22 Apr 2001 02:54:36 +0100; When I worked at the old HF radar (ROTHR) site in Alaska there were times when there were two different propagation paths evident. One was a high-angle path (Pederson Ray) and the other was a low-ang; /archives//html/Topband/2001-04/msg00060.html (7,482 bytes)
5. Topband: Take off angles (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Tue, 24 Apr 2001 07:16:44 +0100; I received some questions on the post about high and low angle. Try to answer them before I go out of town for a few days (I'll be netless!). Re: horizontal or vertical It was strictly vertical on th; /archives//html/Topband/2001-04/msg00073.html (8,928 bytes)
6. Topband: loudest in AK (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sun, 28 Jan 2001 23:30:22 +0000; I kept track of who was loudest during the 2nd night of the contest. Without further ado: W1 Never heard any complete calls W2 W2GD, but he never heard me. W3 AA1K W4 W8JI (W4ZV was just as loud but; /archives//html/Topband/2001-01/msg00249.html (6,895 bytes)
7. Topband: skew paths (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sat, 18 Nov 2000 04:55:29 +0000; What an interesting discussion! I do have some observations. 1. While skew paths often seem to occur during disturbed geomagnetic conditions, I suspect that the association is not that disturbances c; /archives//html/Topband/2000-11/msg00098.html (9,688 bytes)
8. Topband: aurora (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Tue, 08 Aug 2000 06:14:03 +0100; I tried testing this back in the '80s and never saw any significant difference between the low end and the top end of the 160m band on a transauroral path. On 80 meters, however, it did seem like the; /archives//html/Topband/2000-08/msg00020.html (7,147 bytes)
9. [Fwd: Topband: recent T32B trip] (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sat, 11 Mar 2000 05:16:01 +0000; K1KI commented on two interference sources heard by T32B: "There is an Australian university that is running an automated wind shear radar on 160 that puts out a square wave on 1.885 which blankets a; /archives//html/Topband/2000-03/msg00032.html (7,263 bytes)
10. Topband: Strange Band (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sat, 26 Feb 2000 17:36:05 +0000; Tried to work a little contest last night and the band was very strange. It seemed like there were only about a dozen guys on at any one time. Here's some of the observations: W3GH was 57. Never hear; /archives//html/Topband/2000-02/msg00184.html (9,083 bytes)
11. Topband: strange band (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Tue, 29 Feb 2000 04:02:52 +0000; Earlier I posted an observation that in some cases there were tremendous differences in signal strengths for stations in the same area during the first night of the CQ 160 SSB contest. I listed some; /archives//html/Topband/2000-02/msg00205.html (8,204 bytes)
12. Topband: 160m daylight path? (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sun, 09 Jan 2000 02:17:24 +0000; "Actually, these topside E layer reflections are just what is needed for E to F layer ducting propagation with very low loss (since there is no passing thru the absorptive D layer)." While I agree su; /archives//html/Topband/2000-01/msg00066.html (8,627 bytes)
13. TopBand: Re: N7DD to A45XR (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sat, 06 Feb 1999 06:40:28 +0000; <19990205.005019.4487.1.k6se@juno.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-topband@contesting.com Precedence: bulk X-List-Info: http://www.contest; /archives//html/Topband/1999-02/msg00040.html (10,069 bytes)
14. TopBand: LDE (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Thu, 11 Feb 1999 04:42:25 +0000; On 10 Feb around 1400Z I began hearing a long delayed echo on my 160 meter signal. The echo was extremely variable in strength, it went from non-existent to quite loud in just a second or two. The ba; /archives//html/Topband/1999-02/msg00062.html (7,225 bytes)
15. TopBand: lack of EU (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sat, 13 Feb 1999 08:19:11 +0000; W7II's lament about the lack of Europe on 160 this season is not surprising. I did a quick count of European QSOs on 160 from my station over the last few years. I also included the lone African cont; /archives//html/Topband/1999-02/msg00068.html (6,926 bytes)
16. TopBand: KL7XX (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sun, 20 Dec 1998 03:24:59 +0000; This is a multi-part message in MIME format. --2EE7BAC738C Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Just got a note from Bill, KL7XX, which I am forwarding to the re; /archives//html/Topband/1998-12/msg00189.html (7,546 bytes)
17. TopBand: poor props (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Fri, 25 Dec 1998 02:57:56 +0000; Here in South Central Alaska top band props have been extremely poor. Europe has almost completely vanished. The Caribbean is as rare as EU. Even stateside stuff has suffered. The only high spot all; /archives//html/Topband/1998-12/msg00243.html (7,176 bytes)
18. TopBand: high angle at dawn (score: 1): Author: kl7y@alaska.net (Dan Robbins); Date: Sun, 2 Aug 1998 15:38:13 -0800 (AKDT); When I was a shift supervisor on the over the horizon radar on Amchitka Island we used to see a brief window around dawn when DX propagation improved. This window corresponded roughly to that time wh; /archives//html/Topband/1998-08/msg00027.html (8,257 bytes)
19. TopBand: ROTHR not on ham bands (score: 1): Author: kl7y@Alaska.NET (Dan Robbins); Date: Tue, 31 Mar 1998 21:25:59 -0900 (AKST); ROTHR cannot transmit as low as 160 meters. ROTHR does not transmit on any ham bands, nor will it transmit on standard HF maritime or aircraft frequencies. There are other frequencies avoided like WW; /archives//html/Topband/1998-04/msg00000.html (7,441 bytes)
20. TopBand: Re: [CQ-Contest] 160m SWL report (score: 1): Author: kl7y@Alaska.NET (Dan Robbins); Date: Mon, 2 Mar 1998 20:28:20 -0900 (AKST); KL7Y: I heard this QSO between ZL1ANJ and WB9Z - but it was evidently WB9Z's freq as he started CQing immediately after the QSO. I went up a little and called ZL1ANJ with no luck. Eventually I called; /archives//html/Topband/1998-03/msg00023.html (7,377 bytes)

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