Re: [Elecraft] Antenna comment

2020-03-17 Thread John Langdon
almost all directions. He went from an SWL to the Honor Roll in record time. 73 John N5CQ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Jim Danehy Sent: Tuesday, March 17, 2020 4:47 AM To: Elecraft Mailing List Subject: [Elecraft] Antenna comment You can be a mile h

[Elecraft] Antenna comment

2020-03-17 Thread Jim Danehy
You can be a mile high (5,280’) on a plateau that goes for many miles. That still is FLAT LAND as far as a TAKE OFF ANGLE. What counts is the IMMEDIATE SLOPE of the land underneath the antenna. The first 1000 + feet is critical. The FIRST BOUNCE to the IONOSPHERE is the criterion for a DX