Announcement

Collapse
No announcement yet.

Leonids Meteor Scatter NVIS

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Leonids Meteor Scatter NVIS

    I have been experimenting with using an FM6 antenna mounted about 8 feet off the ground, but tilted to a 45 degree elevation. This serves several purposes:
    • Scientific literature on the study of forward meteor scatter (radio detection of meteors) indicates that 45 degrees is the optimum angle for detection.
    • The higher angle reduces the noise floor several dB.
    • The higher angle optimizes stations that are nearer to my receiver. (Angle of incidence equals angle of reflection.) This means stations closer to my receiver can better be detected. A lower elevation angle would minimize those receptions and optimize distant stations.
    During Leonids in November, this has resulted in several close in receptions of new stations, like this one this morning:

    WKLX, Brownsville, KY located just 277 miles from me, running 8 kW. I actually heard snipets of this station several times during the night, but at around 10:30 caught this legal ID. If I had more open channels, it would be really fun to experiment with the NVIS techniques more.

    73,

    Les Rayburn, N1LF
    Maylene, AL (Near Birmingham)

    Click image for larger version

Name:	FM6 NVIS Meteor Scatter Antenna2.jpg
Views:	73
Size:	282.9 KB
ID:	150Click image for larger version

Name:	FM6 NVIS Meteor Scatter Antenna 3.jpg
Views:	69
Size:	288.8 KB
ID:	151100.7 WKLX Brownsville KY Ms Nov 18 22.mp3
Working...
X
Statcounter code for vbulletin 3.8