[Prev][Next][Index][Thread]
Re: (meteorobs) Radio Observation of Meteors
Thanks guys,
I hadn't had any luck with meteor scatter on HF, possibly because of
signals and noise from other modes of propagation, and the lack of a
high gain directive antenna. On 28 MHz I used a vertical (Butternut
HF6V), on 50 MHz I had a close spaced 5 element beam, but on 144 MHz I
used a wide spaced 10 element beam tuned to the bottom of the band - and
it worked great.
That said, maybe at the next solar minimum, when 10 through 15 metres
are closed most of the day, it would be worthwhile trying.
On the subject of radio observations, I was wondering if amateurs had
tried radar detection of meteors themselves. Perhaps using a beacon
with a directional antenna pointing upward, and a receiver with an
upward facing antenna a few kilometres distant but out of the ground
wave of the transmitter?
Ron (in Gander)
Mark S. Williams wrote:
>
> Ron, John and Meteorobs
>
> The Amateur HF 10 meter band (28.0-29.7 MHz) works splendidly for meteor
> burst work. The "pings" or Ionized trails sustain reflective signal paths
> longer the lower the frequency. A two second burst at 144 MHz might last 8
> seconds at 28 Mhz. Of course path geometry is a big factor, but 10 meters
--
R & L Thompson, 9 Medcalf St., Gander, NF, Canada A1V 1R9
Tel (709) 256-1179, Fax (709) 256-8638, e-mail rlthompson@thezonedot net
Amateur Radio Station call VO1AV, FP5EK, VE1KM Grid Square GN28qw
Location 48 57'08" N 054 36'43" W,
Local time UTC - 2.5 hrs Summer, UTC - 3.5 hrs Winter
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html
Follow-Ups:
References: