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Total 4 documents matching your query.

1. Topband: Topband Angle changes at sunrise/sunset (score: 1): Author: btippett@alum.mit.edu (Bill Tippett); Date: Sat, 04 May 2002 00:07:39 +0100; apparently change from low to high angles at sunrise...but the same is not usually true for sunset. Bob NM7M sent the following explanation for this: "As for the changes in angle at sunrise, and the; /archives//html/Topband/2002-05/msg00026.html (7,628 bytes)
2. Topband: Topband Angle changes at sunrise/sunset (score: 1): Author: k6se@juno.com (k6se@juno.com); Date: Fri, 3 May 2002 18:46:07 -0700; "At sunrise, ionospheric layers are tilted downward or lowered as the sun rises, refracting signals downward at steeper angles, while at sunset layers are raised slightly as the sun sets, with little; /archives//html/Topband/2002-05/msg00028.html (7,391 bytes)
3. Topband: Topband Angle changes at sunrise/sunset (score: 1): Author: bobnm7m@cnw.com (Robert Brown); Date: Fri, 3 May 2002 20:54:04 -0700 (PDT); Earl, Yes, the downward tilt of ionospheric layers is to the east as the sun rises. As a result, signals coming from the west are refracted downward at steeper angles and heard better on high angle a; /archives//html/Topband/2002-05/msg00031.html (7,218 bytes)
4. Topband: Topband Angle changes at sunrise/sunset (score: 1): Author: k1jj@snet.net (Tom Cathey); Date: Sat, 4 May 2002 02:00:12 -0400; Here's my observations for both 75M and 160M sunset and later evening angles, based on 15 years playing 75M DX and only a few months doing 160M DX - for CT to Europe: Using the 3el 160M vert array co; /archives//html/Topband/2002-05/msg00032.html (8,421 bytes)

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